2018-04-20 Paulo Andrade * include/lightning/jit_private.h: Add new register classes to flag float registers and double only registers, required for sparc64 where only low 32 bit fpr registers can be used for single precision operations. Add new 128 bit jit_regset_t type for sparc64 register set. * include/lightning/jit_sparc.h, lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c, lib/jit_sparc-sz.c, lib/jit_sparc.c: Update for 64 bits sparc. * lib/lightning.c: Update for new jit_regset_t required for sparc64. 2018-02-26 Paulo Andrade * check/lightning.c, include/lightning.h: Add the new jit_va_push interface. That should be called when passing a va_list to a C function. This is required because on Alpha a va_list is passed by value, and lightning does not know about data types, so, cannot understand it is pushing a va_list as argument. * lib/jit_names.c, lib/lightning.c: Minor changes for the new jit_code_va_push. * check/cva_list.c: Update only test case using jit_va_push, to pass a va_list to a C function. doc/body.texi: Better documentation of the varargs interface. * jit_alpha.c, jit_alpha-cpu.c: Update to properly push a C va_list and correctly calculate varargs offset. * lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_alpha-sz.c, lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_hppa-sz.c, lib/jit_hppa.c, lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_mips-sz.c, lib/jit_mips.c, lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_s390-sz.c, lib/jit_s390.c, lib/jit_sparc-sz.c, lib/jit_sparc.c, lib/jit_x86-sz.c, lib/jit_x86.c: Update for the new jit_va_push interface. 2018-02-22 Paulo Andrade * lib/jit_alpha-cpu.c: Always set t12 to the address of the current function, to properly work on all systems. Previously the shortcut did only work on Tru64. For Linux and glibc the change is required. 2018-02-22 Paulo Andrade * lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_sparc.c, lib/jit_x86.c: Correct wrong logic in usage of jit_live in jit_retr. The problem is that if a temporary is required during epilog, the return register might be allocated, so, jit_live must always be used. 2018-01-31 Paulo Andrade * lib/lightning.c: Avoid deep recursions when computing live register ranges. 2018-01-31 Paulo Andrade * lib/jit_mips-cpu.c: Correct frame size and varargs initialization for the n32 abi. * lib/jit_mips.c, lib/jit_mips-fpu.c: Correct 32 bit abis in big-endian. 2017-09-13 Paulo Andrade * configure.ac: Add check for binutils 2.29 prototype to the disassembler function. * lib/jit_disasm.c: Adapt for binutils 2.29 change. 2017-06-09 Paulo Andrade * include/lightning/jit_private.h, lib/lightning.c: Add a second pass from start when computing register live ranges. This should be used temporarily, and is required for certain loop constructs, with several consecutive blocks not referencing a live register. 2016-05-05 Paulo Andrade * lib/lightning.c: Correct wrong movr simplification, remove no longer needed code to set return registers live and update live register set when reaching a label boundary, but do not descend if the block has been already visited. The later need some tuning for complex code generation, where it will still have issues. 2015-11-30 Paulo Andrade * doc/body.texi: Change documentation to no longer say it is a variant of the Fibonacci sequence, and document a proper implementation. Thanks to Jon Arintok for pointing out that the Fibonacci sequence generation was incorrect. It was documented, but still confusing. * check/fib.tst, check/fib.ok, check/bp.tst, check/bp.ok, doc/ifib.c, doc/rbif.c: Implement a proper Fibonacci sequence implementation. 2015-07-03 Paulo Andrade * lib/jit_mips-cpu.c: Correct definition of htonr_ul. Correct prolog/epilog/va* routines to work on o64 abi. * lib/jit_mips-fpu.c: Correct load of double literal argument when not using a data buffer. Remove alignment correction in vaarg_d if using the new mips abi. * lib/jit_mips.c: Correct code to allow creating variadic jit functions when using the new mips abi. * lib/jit_rewind.c: Minor adjust for rewind when using the new mips abi, if there are varargs arguments in registers. 2015-06-06 Paulo Andrade * lib/jit_ia64-cpu.c: Search backward for the last output register used, otherwise would stop too early if a float argument used the slot. Correct offset of first va_list argument, and use proper va_list abi. * lib/jit_ia64-fpu.c: Add new functions to move a gpr to a fpr register, to counterpart the ones that move a fpr to a gpr. These are required to properly implement jit_getarg*_{f,d} on complex prototypes, or variadic jit functions. * lib/jit_ia64-sz.c: Update for support to jit variadic functions. * lib/jit_ia64.c: Implement proper abi for variadic jit functions. 2015-06-04 Paulo Andrade * lib/jit_rewind.c: New file implementing generic functions to "rewind", or rewrite IR code sequences. * include/lightning.h: Add several new codes, that previously were a function call, that would synthesize the operation. Now, there is a code for the operation, and a new flag to know an operation is synthesized. * include/lightning/jit_private.h: Add several new macros to help construct synthesized IR code sequences. * lib/Makefile.am: Update for lib/jit_rewind.c. * lib/jit_disasm.c: Update for a small rework on jit_node_t, so that --enable-devel-disassembler does not need a change in the layout of jit_node_t. * lib/jit_names.c: Update for the new codes. * lib/jit_print.c: Update to print more readable output, and flag synthesized IR code sequences. * lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_x86-sz.c, lib/jit_x86.c: Update for new synthesized IR code sequences. * lib/jit_ppc-cpu.c, lib/jit_ppc-fpu., lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips-sz.c, lib/jit_mips.c, lib/jit_s390-fpu.c, lib/jit_s390-sz.c, lib/jit_s390.c: Update for new synthesized IR code sequences and correct bugs in the initial varargs implementation support. * lib/jit_alpha-sz.c, lib/jit_alpha.c, lib/jit_hppa-sz.c, lib/jit_hppa.c, lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_sparc-sz.c, lib/jit_sparc.c: Add generic, untested support for the new synthesized IR code sequences. Known most likely broken right now, and should be corrected once access to these hosts is available. * lib/lightning.c: Update for new IR codes, and add support for not yet existing instructions that change third argument. * size.c: Change to use different tables for LE and BE PowerPC. Correct a wrong endif for x32. 2015-05-25 Paulo Andrade * check/cva_list.c: New file implementing a test to ensure the value returned by jit_va_start is a valid C va_list. * check/va_list.ok: New simple helper file, as now the va_list.tst test is enabled. * check/va_list.tst: Rewritten for an extensive variadic jit functions test. * check/Makefile.am: Update for the new tests. * lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-vfp.c, lib/jit_arm.c: Correct broken software float in a previous commit. Note that the hard float abi implementation is known broken at this time, for special cases involving variadic functions, and should be corrected next. lib/jit_x86-cpu.c, lib/jit_x86-sz.c, lib/jit_x86.c: Correct the jit_va_list_t semantics to match C va_list. 2015-05-24 Paulo Andrade * lib/Makefile.am: Bump library major. This is a preparation for a rework that was due for quite some time, but that is now required to properly implement variadic jit functions. The rework is mainly required to know at prolog parsing, if a function is variadic or not. This will benefit a few backends, and is mandatory for the hard float arm abi. The rework was already planned for quite some time, to be able to use a variable stack framesize, and for leaf functions optimization where applicable. The change will be source compatible, but will change some internals, and jit_code_t values, as some new will be added. The only behavior change is that, jit_arg_register_p may change return value on hard float arm abi, if called before or after jit_ellipsis. Common sense anyway, would say to make that call after jit_ellipsis, but documentation should be updated for it. 2015-05-24 Paulo Andrade * lib/jit_aarch64-fpu.c, lib/jit_aarch64.c: Correct base aarch64 varargs code. 2015-05-24 Paulo Andrade * check/lightning.c: Clearly run check if clang is the system compiler. 2015-05-20 Paulo Andrade * lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c, lib/jit_sparc.c: Add base support to jit vararg functions to the sparc backend. 2015-05-20 Paulo Andrade * lib/jit_alpha-cpu.c, lib/jit_alpha-fpu.c, lib/jit_alpha.c: Add base support to jit vararg functions to the alpha backend. 2015-05-19 Paulo Andrade * lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c, lib/jit_hppa.c: Add base support to jit vararg functions to the hppa backend. 2015-05-10 Paulo Andrade * lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64.c: Add base support to jit vararg functions to the ia64 backend. 2015-05-10 Paulo Andrade * lib/jit_ia64-fpu.c, lib/jit_ia64.c: Correct movi_d_w and movi_f_w implementation to work when not using a data buffer. This causes the check varargs.tst to work when passing "-d" to the lightning test tool. 2015-05-10 Paulo Andrade * lib/jit_ia64.c: Implement inline assembly cache flush, required on multiprocessor systems. 2015-05-06 Paulo Andrade * lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c: Add base support to jit vararg functions to the mips backend. Currently only supported on the o32 abi, until access to a n32 system is arranged. 2015-05-05 Paulo Andrade * lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: Add base support to jit vararg functions to the PowerPC backend. 2015-05-02 Paulo Andrade * lib/jit_s390-cpu.c, lib/jit_s390-fpu.c, lib/jit_s390.c: Add base support to jit vararg functions to the s390 backend. 2015-05-01 Paulo Andrade * lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-vfp.c, lib/jit_arm.c: Add base support to jit vararg functions to the arm backend. 2015-04-30 Paulo Andrade * lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c, lib/jit_aarch64.c: Add base support to jit vararg functions to the aarch64 backend. 2015-04-27 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/jit_names.c, lib/lightning.c: Add initial support for the new jit_va_start, jit_va_arg, jit_va_arg_d, and jit_va_end interfaces. The jit_va_start call is supposed to return a va_list compatible pointer, but not yet decided if it will be "declared" stdarg compatible, as for now only x86 support has been added (and should be compatible), but issues may arise on other backends. * check/lightning.c: Add wrappers to call the new jit_va_* interfaces. * lib/jit_x86-cpu.c, lib/jit_x86.c: Implement the new jit_va_* for x86. * lib/jit_x86-sz.c: Add fields, but not yet fully updated, as this is an intermediate commit. * lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_alpha-sz.c, lib/jit_alpha.c, lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_hppa-sz.c, lib/jit_hppa.c, lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_mips-sz.c, lib/jit_mips.c, lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_s390-sz.c, lib/jit_s390.c, lib/jit_sparc-sz.c, lib/jit_sparc.c: Prepare for the new jit_va_* interfaces. Not yet implemented, and will cause an assertion if used. * check/va_list.tst: Simple early test case, that works on x86_64, x32, ix86, cygwin, and cygwin64. 2015-02-17 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/jit_aarch64-cpu.c, lib/jit_aarch64.c, lib/jit_alpha-cpu.c, lib/jit_alpha.c, lib/jit_arm-cpu.c, lib/jit_arm.c, lib/jit_hppa-cpu.c, lib/jit_hppa.c, lib/jit_ia64-cpu.c, lib/jit_ia64.c, lib/jit_mips-cpu.c, lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc.c, lib/jit_s390-cpu.c, lib/jit_s390.c, lib/jit_sparc-cpu.c, lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86.c: Implement the new jit_allocar(offs, size) interface, that receives two integer registers arguments, allocates space dynamically in the stack, returns the offset in the first argument, and uses the second argument for the size in bytes of the memory to be allocated. * check/allocar.ok, check/allocar.tst: New files implementing test cases for the new jit_allocar interface. * check/Makefile.am, check/lightning.c: Update for the new test case and interface. * doc/body.texi: Add documentation of the new interface. 2015-02-17 Paulo Andrade * include/lightning/jit_x86.h, lib/jit_x86-cpu.c, lib/jit_x86-x87.c: No longer make st(7) available. Need to keep one x87 slots empty to avoid exceptions. This has the side effect of no longer needing the hackish emms instruction before a function call. 2015-02-16 Paulo Andrade * lib/lightning.c: Remove the jit_regno_patch bitfield register fields before actual emit, as it is only really used before emit, otherwise, on special conditions it may consider live registers as dead during code emit. 2015-02-15 Paulo Andrade * lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c: Correct encoding of ldxr* stxr* in the x32 abi. If the displacement register is negative, it would generate a 64 bit instruction with a 32 bit unsigned displacement. * check/ranger.tst, check/ranger.ok: New files, implementing a test case for negative loads and stores. This is range.tst converted to use registers instead of immediate offsets. check/Makefile.am: Update for the new test case. 2015-02-07 Paulo Andrade * lib/jit_size.c: Preventively use at least 144 bytes if JIT_INSTR_MAX is less than it. The logic is not guaranteed to be 100% precise, it is mostly heuristics to allocate a buffer with as close as possible size, but a wrong value may cause code generation to write past the end of the buffer. 2015-02-03 Paulo Andrade * lib/lightning.c: Correct the reason the bug in simplify_stxi was not triggered before, it was due to incorrectly resetting the value->code field, what was causing it to never properly optimize: stxi Im0 Rb0 Rt0 ldxi Rt1 Rb1 Im1 when Rb0 == Rb1, Rt0 == Rt1 and Im0 == Im1 There was another possible issue, that has been also addressed in this commit, that would be the case of Rbn == Rtn, where no redundancy removal is possible. 2015-02-03 Paulo Andrade * lib/lightning.c: Correct wrong check in simplify_stxi. The test was incorrectly comparing the target register and the displacement offset. This was a time bomb bug, that would trigger in code like: stxi Im0 Rb0 Rt0 stxi Im1 Rb1 Rt1 if Rb0 == Rb1 && Rt0 == Rt1 && Im0 == Rt1, that is, the wrong check was Im0 == Rt1, instead of the supposed Im0 == Imm1 (that was what the code mean't to do). It was removing the second stxi assuming it was redundantly generated; as that is not uncommon pattern on translators generating jit. 2015-02-02 Paulo Andrade * configure.ac, include/lightning/jit_private.h, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_disasm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_s390.c, lib/jit_sparc.c, lib/jit_x86.c: Add a new --enable-devel-disassembler option, that should be used during development, or lightning debug. This option intermixes previous jit_print and jit_disassemble output, making it easier to visualize what lightning call was used, and what code was generated. 2015-01-31 Paulo Andrade * lib/jit_arm-cpu.c, lib/jit_arm.c: Only limit to 24 bit displacement non conditional jump in the same jit_state_t. 2015-01-19 Paulo Andrade * doc/body.texi: Reorder documentation, making jit_frame and jit_tramp the lightning response to the need of trampolines, continuations and tail call optimizations. A pseudo code example of a factorial function was added. Also added a section for description of the available predicates. * doc/fact.c: New file, implementing a simple example of a translation of a trivial, recursive, tail call optimization into lightning calls. This is the conversion to functional C code of the example in doc/body.texi. * doc/Makefile.am: Update for the next test case. 2015-01-17 Paulo Andrade * include/lightning.h, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm-vfp.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390.c, lib/jit_sparc.c, lib/jit_x86.c: Add the new jit_arg_register_p predicate. The predicate is expected to be used to know if an argument is in a register, what would need special handling if code that can overwrite non callee save registers is executed. * check/carg.c: New test case to check consistency and expected usage of jit_arg_register_p. * check/Makefile.am: Update for new test case. 2015-01-17 Paulo Andrade * include/lightning/jit_aarch64.h, include/lightning/jit_alpha.h, include/lightning/jit_arm.h, include/lightning/jit_hppa.h, include/lightning/jit_mips.h, include/lightning/jit_ppc.h, include/lightning/jit_s390.h, include/lightning/jit_sparc.h, include/lightning/jit_x86.h, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390.c, lib/jit_sparc.c, lib/jit_x86.c: Remove jit_arg_reg_p and jit_arg_f_reg_p from a public header, and define it only on port specific files where an integer offset is used to qualify an argument identifier. Exported code expects an opaque pointer (but of jit_node_t* type) to "qualify" an argument identifier. This patch, and the code review/simplification done during it also corrected some bugs: o Inconsistent jit_arg_d value of double argument after 3 integer arguments in arm for jit_functions; tested, C functions were being properly called. o Inconsistent use of getarg_{f,d} and putarg*_{f,d} on s390 (32-bit) that happened to not have a proper test case, as it would only happen for jit functions, and tested, called C functions had proper arguments. o Corrected a "last minute" correction that did not go to the committed version, and would not compile on hppa, due to bad _jit_putargi_d prototype definition. 2015-01-17 Paulo Andrade * doc/body.texi: Correct wrong/outdated information for hton*, pusharg* and ret*, and add missing documentation for rsb*, qmul*, qdvi* and putarg*. 2015-01-15 Paulo Andrade * configure.ac, lib/jit_disasm.c: Rewrite workaround to apparent problem to initialize powerpc disassembler. 2015-01-15 Paulo Andrade * include/lightning.h, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390.c, lib/jit_sparc.c, lib/jit_x86.c: Implement jit_putarg*. It works as a mix of jit_getarg* and jit_pusharg*, in the way that the first argument is a register or immediate, and the second is a pointer returned by jit_arg*. The use of the interface is to change values of arguments to the current jit function. * check/put.ok, check/put.tst: New test cases exercising the new jit_putarg* interface. * check/Makefile.am, check/lightning.c: Update for the new test case and interface. 2015-01-08 Paulo Andrade * include/lightning/jit_s390.h, lib/jit_s390-cpu.c, lib/jit_s390-fpu.c, lib/jit_s390-sz.c, lib/jit_s390.c: Renamed s390x* files to s390*. * check/float.tst, check/lightning.c, configure.ac, include/lightning.h, include/lightning/Makefile.am, lib/Makefile.am, lib/jit_s390.c, lib/jit_size.c, lib/lightning.c: Update for renamed files. 2015-01-08 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, include/lightning/jit_s390x.h, lib/jit_disasm.c, lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_s390x-sz.c, lib/jit_s390x.c, lib/jit_size.c, lib/lightning.c: Add support for generating jit for s390 32 bit. This change also removed %f15 from the list of temporaries fpr registers; it was not being used, but if were, it would corrupt the stack frame because the spill address would overwrite grp offsets. 2014-12-26 Paulo Andrade * lib/jit_ppc-cpu.c, lib/jit_ppc.c: Correct some endianess issues on the powerpc le backend. 2014-12-26 Paulo Andrade * lib/jit_ppc-cpu.c: Add mcrxr instruction emulation, as this instruction has been phased out, and should be implemented as a kernel trap. 2014-12-26 Paulo Andrade * lib/jit_arm.c: Better check for need to flush constants before the pool being no longer reachable. 2014-12-25 Paulo Andrade * include/lightning.h: Split jit_htonr in the new 3 interfaces jit_htonr_us, jit_htonr_ui and jit_htonr_ul, the later only available on 64 bit. The plain/untyped jit_htonr macro call maps to the wordsize one. * lib/jit_aarch64-cpu.c, lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_alpha-cpu.c, lib/jit_alpha-sz.c, lib/jit_alpha.c, lib/jit_arm-cpu.c, lib/jit_arm-sz.c, lib/jit_arm.c, lib/jit_hppa-cpu.c, lib/jit_hppa-sz.c, lib/jit_hppa.c, lib/jit_ia64-cpu.c, lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_mips-cpu.c, lib/jit_mips-sz.c, lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_s390x-cpu.c, lib/jit_s390x-sz.c, lib/jit_s390x.c, lib/jit_sparc-cpu.c, lib/jit_sparc-sz.c, lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86-sz.c, lib/jit_x86.c: Update backends for the new jit_htonr*. * check/lightning.c, lib/jit_names.c, lib/lightning.c: Update for the new jit_htonr* interfaces. * check/Makefile.am: Update for new test cases. * check/hton.ok, check/hton.tst: New test cases. 2014-12-24 Paulo Andrade * include/lightning/jit_private.h, include/lightning/jit_x86.h, lib/jit_disasm.c, lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-sz.c, lib/jit_x86-x87.c, lib/jit_x86.c, size.c: Implement support for the x32 abi. Built and tested on Gentoo default/linux/amd64/13.0/x32 profile. 2014-12-24 Paulo Andrade * lib/jit_names.c: Add missing rsbi_f and rsbi_d strings. 2014-12-21 Paulo Andrade * lib/jit_arm.c: Call __clear_cache for every page. This should only be required for older boards or toolchain setup, but has been reported to be required for lightning at some point. 2014-12-21 Paulo Andrade * lib/jit_arm.c: Correct check to guard overflow of index of constants from program counter. 2014-11-24 Paulo Andrade * lib/lightning.c: Remove an optimization to calee save registers that may incorrectly remove a jit_movr under special conditions. 2014-11-20 Paulo Andrade * include/lightning/jit_ppc.h, lib/jit_ppc-cpu.c, lib/jit_ppc.c: Add initial powerpc le support. 2014-11-20 Paulo Andrade * lib/jit_disasm.c: Change thumb or arm disassemble based on jit code before disassembly. * lib/jit_arm-cpu.c: Correct reversed arguments to LDRD and STRD instructions, and correct checking for support of those. * lib/jit_arm-swf.c: Correct wrong use of LDRD and STRD and only use those if the register is even. * check/check.arm.swf.sh, check/check.arm4.swf.sh: New files to test LDRD and STRD, as well as the alternate code path when those are not available, in the .arm4. test case. * check/Makefile.am: Update for the new test cases. 2014-11-08 Paulo Andrade * include/lightning/jit_private.h, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c: Implement a private jit_flush call, that flushes the cache, if applicable, aligning down to the previous and up to the next page boundary. 2014-11-08 Paulo Andrade * check/ctramp.c: New file. It just repeats the test of tramp.tst, but using two jit_state_t, what should test possible issues with two contexts, and also validate jit_tramp works on backends with function descriptions. * check/Makefile.am: Update for new test case. 2014-11-03 Paulo Andrade * include/lightning/jit_mips.h: Do not make the t9 register JIT_R11 (or JIT_R7 for n32 or n64 abi) available. Previously it cause problems if one expects it to not be changed in a function call. For example, calling a jit function, where it really does not need to be changed. 2014-10-26 Paulo Andrade * lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c: Add an assertion to all code generation "drivers" to ensure _jitc->regarg is empty or in an expected state, after translation of a lightning instruction to native code. This change was a brute force test to find out other cases of a temporary not being release (like was happening with _bmsi and _bmci on x86), but no other case was found, after running make check, with assertions enabled, on all backends. 2014-10-26 Paulo Andrade * lib/jit_x86-cpu.c: Correct a register allocation leak in _bmsi and _bmci. 2014-10-25 Paulo Andrade * lib/jit_disasm.c: Do not cause an fatal error if init_jit fails in the jit_init_debug call. 2014-10-24 Paulo Andrade * lib/jit_ia64.c, lib/jit_ppc.c: Correct handling of function descriptor when first prolog is a jit_tramp prolog. The test case was using the same jit_context_t, so was not triggering this condition. * lib/jit_ppc-cpu.c: Properly handle jump displacements that do not fit on 24 powerpc. This required changing from previous "mtlr reg, blr" to "mtctr reg, bctr" to properly handle the logic to "hide" function descriptors, but that would also be required as the proper jit_jmpr when/if implementing optimizations to leaf functions (was working with blr because it is saved/reloaded in prolog/epilog). 2014-10-21 Paulo Andrade * include/lightning.h, lib/lightning.c: Add three predicates to query information about labels. jit_forward_p(label) will return non zero if the label is "forward", that is need a call to jit_link(label), jit_indirect_p(label) that returns non zero if the label was created with the jit_indirect() call, and jit_target_p(label) that will return non zero if there is at least one jump patched to land at that label. 2014-10-18 Paulo Andrade * check/range.ok, check/range.tst: New test case designed to catch incorrect code generation, usually due to incorrect test of immediate size. The test checks a large amount of encodings in "power of two" boundaries. This test exorcises a significant amount of code paths that was previously not tested. * check/Makefile.am: Add range test to make check target. * lib/jit_aarch64-cpu.c: Correct wrong address calculation for stxi_c, stxi_s, stxi_i and stxi_l when the offset is too large. * lib/jit_mips-fpu.c: Correct wrong size test to check if an immediate can be encoded in a float or double store. * lib/jit_s390x-cpu.c: Correct inverted encoding to stxi_s when the offset cannot be encoded, and fallbacks to an alternate encoding in 2 instructions. 2014-10-17 Paulo Andrade * check/alu_rsb.ok, check/alu_rsb.tst: New files implementing tests for jit_rsb*. * check/Makefile.am, check/lightning.c, include/lightning.h, lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c, lib/jit_aarch64-sz.c, lib/jit_aarch64.c, lib/jit_alpha-cpu.c, lib/jit_alpha-fpu.c, lib/jit_alpha-sz.c, lib/jit_alpha.c, lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-sz.c, lib/jit_arm-vfp.c, lib/jit_arm.c, lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c, lib/jit_hppa-sz.c, lib/jit_hppa.c, lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64-sz.c, lib/jit_ia64.c, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips-sz.c, lib/jit_mips.c, lib/jit_names.c, lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc-sz.c, lib/jit_ppc.c, lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_s390x-sz.c, lib/jit_s390x.c, lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c, lib/jit_sparc-sz.c, lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-sz.c, lib/jit_x86-x87.c, lib/jit_x86.c, lib/lightning.c: Implement jit_rsb*. This was a missing lightning 1.x interface, that on most backends is synthesized, but on a few backends (hppa and ia64), it can generate better code as on those there is, or the only instruction with an immediate is in "rsb" format (left operand). 2014-10-17 Paulo Andrade * lib/jit_names.c: New file with single definition of string representation of lightning IR codes. * size.c: Modified to append the code name in a C comment after the maximum instruction size. * lib/jit_print.c: Minor change to not duplicate jit_names.c contents. * lib/jit_aarch64-sz.c, lib/jit_alpha-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c, lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c, lib/jit_s390x-sz.c, lib/jit_sparc-sz.c, lib/jit_x86-sz.c: Rewritten to add string representation of IR codes in a C comment. 2014-10-14 Paulo Andrade * lib/jit_aarch64-cpu.c, lib/jit_alpha-cpu.c, lib/jit_arm-cpu.c, lib/jit_hppa-cpu.c, lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c, lib/jit_sparc-cpu.c: Implement or correct the internal nop(count) call that receives an argument that tells the modulo bytes to align the code for the next instruction. * include/lightning.h, lib/lightning.c, lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c: Implement the new jit_align() call that receive an argument, that tells the modulo, in bytes, to align the next instruction. In most backends the only value that makes a difference is a value that matches sizeof(void*), as all other values usually are already automatically aligned in labels, but not guaranteed to be aligned at word size bytes. * check/align.ok, check/align.tst: New files, implementing a simple test for the new jit_align() interface. * check/Makefile.am, check/lightning.c, lib/jit_aarch64-sz.c, lib/jit_alpha-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c, lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c, lib/jit_print.c, lib/jit_s390x-sz.c, lib/jit_sparc-sz.c, lib/jit_x86-sz.c: Update for the new jit_code_align code and the jit_align() interface. 2014-10-13 Paulo Andrade * include/lightning.h, lib/jit_size.c, size.c: Use a symbolic value for the last IR code. 2014-10-12 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/jit_aarch64-cpu.c, lib/jit_alpha-cpu.c, lib/jit_arm-cpu.c, lib/jit_hppa-cpu.c, lib/jit_ia64-cpu.c, lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c, lib/jit_s390x-cpu.c, lib/jit_sparc-cpu.c, lib/jit_x86-cpu.c, lib/lightning.c: Implement the new jit_frame and jit_tramp interfaces, that allow writing trampoline like calls, where a single dispatcher jit buffer is written, and later other jit buffers are created, with the same stack frame layout as the dispatcher. This is the logic that GNU Smalltalk used in lightning 1.x, and is required to make a sane port for lighting 2.x. * jit_ia64-cpu.c: Implement support for jit_frame and jit_tramp, and also correct wrong encoding for B4 instructions, that implement jmpr, as well as correct reverse logic in _jmpr, that was moving the branch register to the jump register, and not vice-versa. Also, if a stack frame is to be assumed, always assume it may call a function with up to 8 arguments, regardless of the hint frame argument. * lib/jit_arm.c: Add a new must_align_p() interface to ensure function prologs are always aligned. This condition was previously always true, somewhat by accident, but with jit_tramp it is not guaranteed. * jit_ia64-cpu.c: lib/jit_ppc.c: Add minor special handling required to implement jit_tramp, where a function descriptor should not be added before a prolog, as jit_tramp means omit prolog. * check/lightning.c: Update test driver for the new interfaces. * check/Makefile.am, check/tramp.tst, check/tramp.ok: Add a simple test and example of the jit_frame and jit_tramp usage implementing a simple Fibonacci function using a simulation of an interpreter stack and how it would handle state in language specific variables. * doc/body.texi: Add documentation for jit_frame and jit_tramp. 2014-09-29 Paulo Andrade * lib/jit_aarch64.c, lib/jit_alpha.c, lib/jit_arm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c, lib/lightning.c: Allow jit_jmpi on a target that is not a node. This may lead to hard to debug code generation, but is a required feature for certain generators, like the ones that used lightning 1.2x. Note that previously, but not really well documented, it was instructed to use: jit_movi(rn, addr); jit_jmpr(rn); but now, plain: jit_patch_abs(jit_jmpi(), addr); should also work. 2014-09-24 Paulo Andrade * lib/jit_x86-sz.c: Generate information about instruction lengths for more precise calculation of buffer size on Windows x64. This change is specially important because the maximum instruction length is larger than other systems, what could cause an out of bounds write on special conditions without this update. 2014-09-24 Paulo Andrade * check/lightning.c: Add workaround to conflicting global optind variable in cygwin binutils that have an internal getopt* implementation. * lib/jit_x86-cpu.c: Add a simple define ffsl ffs if building for 32 bit and there is no ffsl function. 2014-09-24 Paulo Andrade * check/lightning.c: Add a hopefully temporary kludge to not use sprintf and sscanf returned by dlsym. This is required to pass the varargs test. * include/lightning/jit_private.h: Use symbolic name for first integer register argument, as this is different in sysv and win64 abi. * include/lightning/jit_x86.h: Add conditionals and definitions for Windows x64 (under __CYGWIN__ preprocessor conditional). * lib/jit_x86-cpu.c: Correct one instruction encoding bug, that was working by accident. Only use rax to rdx for some byte operations to work on compatibility mode (that is, to generate the proper encoding, instead of actually generating encoding for high byte registers, e.g. %bh). Add proper prolog and epilog for windows x64. * lib/jit_x86-sse.c: Correct a swapped rex prefix for float operations. * lib/jit_x86.c: Adjust to support Windows x64 abi. * check/check.x87.nodata.sh: New file, previously used but that was missing git. 2014-09-07 Paulo Andrade * lib/lightning.c: Mark all registers advertised as live, as per jit_callee_save_p as live whenever reaching a jump that cannot be tracked. This is a rethink of the previous commit, and is a better approach, otherwise there would not be much sense on relying on jit_callee_save_p if it could not be trusted. * check/jmpr.tst, check/jmpr.ok: New files implementing a very simple test case, that would actually cause an assertion on code before the change to only mark as live when reaching a jump that could not tracked, the actually advertised as callee save registers. check/Makefile.am: Update for new jmpr test case. 2014-09-01 Paulo Andrade * lib/lightning.c: Do not mark all registers in unknown state as live on jit_jmpr, or jit_jmpi to an absolute address. Instead, treat it as a function call, and only consider JIT_Vn registers as possibly live. 2014-08-29 Paulo Andrade * doc/body.texi: Add a proper info menu entry for GNU lightning. * doc/version.texi: Regenerate. 2014-08-16 Paulo Andrade * lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c, lib/jit_arm-cpu.c, lib/jit_arm-vfp.c, lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c, lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_s390x.c, lib/jit_sparc-cpu.c, lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c: Review generation of all branch instructions and always adds the jit_class_nospill bitfield for temporary registers that cannot be spilled because the reload would be after a conditional jump; the patch only adds an extra assertion. These conditions do not happen on documented lightning usage, but can happen if one uses the not exported jit_get_reg and jit_unget_reg calls and cause enough register starvation. 2014-08-16 Paulo Andrade * lib/jit_alpha.c: Correct wrong bitmask of most argument float register arguments, that were being set as callee save instead of argument registers class. 2014-08-16 Paulo Andrade * lib/jit_arm-sz.c: Regenerate table of known maximum instruction sizes for the software float fallback, that implements "virtual" float registers in the stack and operations as calls to libgcc. * size.c: Correct typo in the generated jit_arm-sz.c file. 2014-08-10 Paulo Andrade * include/lightning/jit_alpha.h, lib/jit_alpha-cpu.c, lib/jit_alpha-fpu.c, lib/jit_alpha-sz.c, lib/jit_alpha.c: New files implementing a lightning Alpha port. Thanks to Trent Nelson and snakebit.net staff for providing access to an Alpha system. * check/float.tst, check/lightning.c, configure.ac, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_private.h, lib/Makefile.am, lib/jit_disasm.c, lib/jit_size.c, lib/lightning.c: Minor changes to adapt for the new Alpha port. 2014-08-10 Paulo Andrade * lib/lightning.c: Always mark JIT_RET and JIT_FRET as live in a function epilog. This is required because on some ports a complex sequence, allocating one or more registers, may be required to jump from a ret* to the epilog, and the lightning api does not have annotations to know if a function returns a value, or the type of the return value. 2014-08-10 Paulo Andrade * lib/lightning.c: Change the correct live bitmask of return registers after a function call in jit_update. 2014-08-10 Paulo Andrade * lib/lightning.c: Change assertions to have an int result and correct a bad bit mask assertion. 2014-08-10 Paulo Andrade * lib/jit_aarch64.c: Correct bad setup for assertion of consistency before a patch. 2014-08-10 Paulo Andrade * lib/jit_mips-cpu.c: Correct typo in the jit_bmsr implementation that was using the wrong test result register. 2014-07-28 Paulo Andrade * lib/jit_memory.c: Do not call free on NULL pointers. * include/lightning/jit_private.h, lib/jit_note.c, lib/lightning.c: Add a wrapper to memcpy and memmove to not actually call those functions with a zero size argument, and likely also a null src or dst. 2014-07-27 Paulo Andrade * include/lightning/jit_private.h, lib/jit_disasm.c, lib/lightning.c: Remove the global jit_progname variable. It was being only used in jit_init_debug, that is called from init_jit, so, just pass an argument. 2014-07-27 Paulo Andrade * doc/body.texi: Add note that jit_set_memory_functions should be called before init_jit, because init_jit itself may call the memory wrappers. 2014-04-22 Paulo Andrade * lib/jit_arm.c: Do not get confused with default settings if /proc is not mounted on Linux specific code path. 2014-04-09 Paulo Andrade * include/lightning/jit_aarch64.h, include/lightning/jit_arm.h, include/lightning/jit_hppa.h, include/lightning/jit_ia64.h, include/lightning/jit_mips.h, include/lightning/jit_ppc.h, include/lightning/jit_private.h, include/lightning/jit_s390x.h, include/lightning/jit_sparc.h, include/lightning/jit_x86.h: Do not add jit_regset_t, JIT_RA0, and JIT_FA0 to the installed header file. These types and definitions are supposed to be only used internally. 2014-04-05 Paulo Andrade * lib/jit_arm-cpu.c: Only adjust stack pointer in prolog if need stack space, that is, do not emit a nop instruction subtracting zero from the stack pointer. 2014-04-04 Paulo Andrade * lib/jit_disasm.c: Correct a crash in the doc/printf example on arm due to releasing the data_info information in jit_clear_state. This is a special case for arm only, and actually, only armv5 or older uses the data_info buffer, or when forcing arm instruction set mode besides thumb available. 2014-12-03 Paulo Andrade * doc/body.texi: Write detailed description and examples for jit_get_memory_functions, jit_set_memory_functions, jit_get_code, jit_set_code, jit_get_data and jit_set_data. 2014-12-03 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/lightning.c: Implement the new jit_set_data() interface, and the new jit_get_data() helper. Like jit_set_code(), jit_realize() should be called before jit_set_data(). The most common usage should be jit_set_data(JIT_DISABLE_DATA | JIT_DISABLE_NOTE), to force synthesize any float/double constant in the stack and not generate any debug information. * lib/jit_note.c: Minor change to debug note generation as now it uses an alternate temporary data buffer during constants and debug generation to accommodate the possibility of the user setting an alternate data buffer. * lib/jit_hppa-fpu.c, lib/jit_s390x.c, lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_sparc.c, lib/jit_sparc-fpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c: Implement jit_set_data. * lib/jit_hppa-sz.c, lib/jit_sparc-sz.c, lib/jit_x86-sz.c, lib/jit_s390x-sz.c: Update for several instructions that now have a different maximum length due to jit_set_data. * lib/jit_mips-fpu.c: Implement jit_set_data, but missing validation on n32 and n64 abis (and/or big endian). * lib/jit_mips-sz.c: Update for changes in o32. * lib/jit_ppc-fpu.c: Implement jit_set_data, but missing validation on Darwin PPC. * lib/jit_ppc-sz.c: Update for changes in powerpc 32 and 64 bit. * lib/jit_ia64-fpu.c: Implement untested jit_set_data. * TODO: Add note to list ports that were not tested for the new jit_set_data() feature, due to no longer having access to them. * check/nodata.c: New file implementing a simple test exercising several different conditions created by jit_set_data(). * check/check.nodata.sh: New file implementing a wrapper over the existing *.tst files, that runs all tests without using a data buffer for constants; only meaningful (and enabled) on architectures that used to store float/double constants on a read only data buffer. * configure.ac, check/Makefile.am: Update for the new test cases. * check/lightning.c: Implement the new "-d" option that sets an internal flag to call jit_set_data() disable constants and debug, that is, using only a pure code buffer. 2014-11-03 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/lightning.c: Implement the new jit_set_code() interface, that allows instructing lightning to use an alternate code buffer. The new jit_realize() function should be called before jit_set_code(), and usually call jit_get_code() to query the amount of bytes expected to be required for the code. * lib/jit_size.c: Minor update to have less chances of miscalculating the code buffer by starting the counter with the size of the longest instruction instead of zero, as code emit fails if at any moment less than the longest instruction bytes are available. * check/setcode.c: New file implementing some basic tests of the new jit_set_code() interface. * check/Makefile.am: Update for newer test case. 2014-06-03 Paulo Andrade * include/lightning.h, lib/lightning.c: Add the new jit_indirect() call, that returns a special label node, and tells lightning that the label may be the target of an indirect jump. * doc/body.texi: Document the new jit_indirect() call, and add examples of different ways to create labels and branches. 2014-23-02 Paulo Andrade * lib/jit_x86.c: Rewrite previous patch to inline save/restore because clobbering %ebx in x86 is treated as an error (jit_x86.c:239:5: error: PIC register clobbered by 'ebx' in 'asm'). 2014-19-02 Paulo Andrade * lib/jit_x86.c: Rewrite incorrect inline assembly that could truncate a variable in a callee save register. Now it simply tells gcc that the register is clobbered, instead of using a *32 bit* swap with a temporary variable. The problem only happens when compiling with optimization. 2014-19-02 Paulo Andrade * include/lightning/jit_aarch64.h, include/lightning/jit_arm.h, include/lightning/jit_hppa.h, include/lightning/jit_ia64.h, include/lightning/jit_mips.h, include/lightning/jit_ppc.h, include/lightning/jit_s390x.h, include/lightning/jit_sparc.h, include/lightning/jit_x86.h: Change jit_regset_t to an unsigned type, to allow safe right shift. * lib/lightning.c: Rewrite jit_regset_scan1 to allow easier compiler optimization. 2013-12-03 Paulo Andrade * lib/jit_x86-x87.c: Correct wrong optimization when loading the log(2) constant. 2013-12-03 Paulo Andrade * lib/jit_x86-cpu.c: Use the emms instruction before calling any function. This is particularly important when using c99 complex functions as it can easily overflow the x87 stack due to the way lightning uses the x87 stack as a flat register file. 2013-12-02 Paulo Andrade * lib/jit_x86-x87.c: Correct wrong code generation due to comparing the base and not the value register with %st(0) in stxi_f. 2013-12-02 Paulo Andrade * lib/jit_x86-x87.c, lib/jit_x86.c: Use 8 bytes aligned stack offset for float/double x87 to/from sse move. 2013-11-27 Paulo Andrade * configure.ac, lib/jit_arm-swf.c, lib/jit_arm.c: Add changes that should at least allow building lightning on Apple iOS7. 2013-10-08 Paulo Andrade * lib/jit_ppc-cpu.c: Correct wrong shortcut for ldxi_l with a zero offset, that was calling ldr_i instead of ldr_l. 2013-10-08 Paulo Andrade * include/lightning/jit_arm.h, lib/jit_arm-cpu.c: Do not use by default load/store instructions that map to ldrt/strt. There is already the long displacement version for positive offsets, and when using a (shorter) negative offset it does not map to ldrt/strt. At least on qemu strt may cause reproducible, but unexpected SIGILL. 2013-10-08 Paulo Andrade * lib/jit_arm-vfp.c: Correct wrong load/store offset calculation when the displacement is constant but too large to use an instruction with an immediate offset. 2013-10-07 Paulo Andrade * check/self.c: Extend tests to validate jit_callee_save_p does not cause an assertion on valid arguments, and test extra registers defined on some backends. * configure.ac: Do not ignore environment CFLAGS when checking if need to test runtime configurable options, like use x87 when sse2 is available, arm instruction set instead of thumb, etc. * include/lightning/jit_arm.h: Correct wrong jit_f macro definition. * include/lightning/jit_ia64.h, include/lightning/jit_ppc.h: Correct wrong jit_r macro definition. * lib/jit_x86-x87.c, lib/jit_x86.c: Actually use the reserved stack space for integer to/from float conversion. The stack space was also changed to ensure it is 8 bytes aligned. Also, for Solaris x86 in 32 bit mode, an alternate truncr_d was implemented because for some reason it is failing with SIGILL if using the "fisttpl" instructions, that must be available on p6 or newer, but for the sake of making all tests pass, implement a 486 or newer sequence if "sun" is defined. 2013-10-03 Paulo Andrade * include/lightning/jit_mips.h, lib/jit_mips-cpu.c, lib/jit_mips-sz.c, lib/jit_mips.c, size: Build and pass all test cases on Irix big endian mips using the 64 bit abi. 2013-10-02 Paulo Andrade * include/lightning/jit_mips.h: Add proper mips abi detection. 2013-09-30 Paulo Andrade * lib/jit_print.c: Do not crash if calling jit_print from gdb before actually emitting code. * lib/lightning.c: Correct misplaced check for already visited blocks on conditional branches, what was preventing proper merge live bit masks of forward blocks. 2013-09-30 Paulo Andrade * lib/jit_x86-cpu.c: Correct not properly tested case of using %r12 as index register, what was causing an invalid assertion. %r12 is mapped to the "extra" JIT_R3 register, and test cases only test "standard" lightning registers. 2013-09-28 Paulo Andrade * lib/jit_ia64.c: Minor change to force collecting the maximum instruction length in the --enable-devel-get-jit-size build mode. The actual generated file did not change because the sampling was large enough that it had already collected proper information in the previously slightly buggy code (not forcing a sync of the instructions that could be combined). 2013-09-27 Paulo Andrade * lib/jit_arm.c: Correct build when disassembler is disabled. 2013-09-25 Paulo Andrade * lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c: Correct some off by one range checks (that were only accepting values one less than the maximum allowed) and an invalid test condition check that was forcing it to always use indirect jumps even when reachable with an immediate displacement. 2013-09-24 Paulo Andrade * lib/jit_aarch64-sz.c, lib/jit_arm-sz.c, lib/jit_hppa-sz.c, lib/jit_ia64-sz.c, lib/jit_mips-sz.c, lib/jit_ppc-sz.c, lib/jit_s390x-sz.c, lib/jit_size.c, lib/jit_sparc-sz.c, lib/jit_x86-sz.c: New files implementing static tables with longest known instructions length generated to match a lightning instruction. These tables should make it easier to make it very unlikely to ever miscalculate, or by too much, the size of a code buffer. * lib/jit_size.c: New file that aids to either collect jit code size information, or use the information depending on build options. * size.c: New helper file that parses input for, and create an initial jit_$arch-sz.c file, that needs some minor edit for arches with multiple configurations. * configure.ac, Makefile.am: Add the new, devel mode only --enable-devel-get-jit-size configure option, that sets compile time flags to collect jit code size information, that will be used as input for the "noinst size program". * lib/jit_aarch64.c, lib/jit_arm.c, lib/jit_disasm.c, lib/jit_hppa.c, lib/jit_ia64.c, lib/jit_memory.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_s390x.c, lib/jit_sparc.c, lib/jit_x86.c, lib/lightning.c: Minor changes for the --enable-devel-get-jit-size build mode, as well as the "production build mode" with jit code size information. 2013-09-14 Paulo Andrade * include/lightning.h, lib/lightning.c: Add the new jit_pointer_p interface, that returns a boolean value telling if the pointer argument is inside the jit code buffer. This is useful to avoid the need to add extra labels and calls to jit_address to figure bounds of code buffer, and still keep internal data private. 2013-09-13 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/jit_note.c: Change the code argument of jit_get_note to a jit_pointer_t and make jit_get_note a public interface. It was intended so since start, as a way to map an offset in the code to a function name, file name and line number mapping. 2013-09-11 Paulo Andrade * doc/body.texi: Correct reversed arguments in example of usage in a (possibly) multi threaded, multiple jit_state_t environments. * include/lightning/jit_arm.h, include/lightning/jit_private.h, lib/jit_arm-cpu.c, lib/jit_arm.c: Make a previously, non documented, global state private to the related jit_state_t generating code. 2013-09-10 Paulo Andrade * check/self.c, check/self.ok: New files implementing simple consistency check assertions. At first validating some macros that use values from different sources agree. * check/Makefile.am: Update for the new test case. * include/lightning.h, lib/lightning.c: Add the new jit_callee_save_p() call, that is intended to be used when writing complex code using lightning, so that one does not need to verify what backend is being used, or have access to private data, to query if a register is callee save or not; on several backends the scratch registers are actually callee save. * include/lightning/jit_aarch64.h, include/lightning/jit_arm.h, include/lightning/jit_hppa.h, include/lightning/jit_mips.h, include/lightning/jit_ppc.h, include/lightning/jit_sparc.h, include/lightning/jit_x86.h: Add an explicit definition for JIT_R3-JIT_Rn, JIT_V3-JIT_Vn and JIT_F6-JIT_Fn when applicable. This allows one to write code based on "#if defined(JIT_XN)" and therefore, not need to check what is the current backend or have access to private data structures. This is particularly useful when writing virtual machines with several specialized, global registers. * lib/jit_ia64.c: Properly flag the callee save general purpose registers as such, so that jit_callee_save_p() works as intended. 2013-09-10 Paulo Andrade * check/lightning.c, configure.ac: Conditionally use the code written to workaround a bug in the Hercules emulator, as isnan and isinf are not available at least on HP-UX ia64. 2013-09-10 Paulo Andrade * lib/jit_s390x-cpu.c: Spill/reload correct callee save float registers. 2013-09-10 Paulo Andrade * lib/jit_hppa-cpu.c: Correct code to call a function stored in a register or a patched function address. 2013-09-10 Paulo Andrade * lib/jit_ia64-cpu.c: Correct incorrect logic when restoring the value of the "r2" callee save register. 2013-08-29 Paulo Andrade * lib/jit_arm-cpu.c, lib/jit_arm.c: Correct wrong test and update of the thumb offset information, when checking if needing to patch a jump from arm to thumb mode. The problem would happen when remapping the code buffer, and the new address being lower than the previous one. 2013-08-26 Paulo Andrade * configure.ac: Extend FreeBSD test to also handle NetBSD. * lib/jit_x86-cpu.c: Correct wrongly defined offset type of ldxi_ui. Problem detected when building on NetBSD. * lib/lightning.c: Adjust code to handle NetBSD mremap, where arguments do not match Linux mremap. 2013-08-26 Paulo Andrade * lib/jit_ppc.c: Correct C sequence point problem miscalculating the actual function address in a function descriptor. Problem happens with gcc 4.8.1 at least. 2013-08-11 Paulo Andrade * lib/jit_s390x-cpu.c: Correct code checking if immediate fits instruction, but using the negated value. 2013-07-28 Paulo Andrade * include/lightning/jit_s390x.h, lib/jit_s390x-cpu.c, lib/jit_s390x-fpu.c, lib/jit_s390x.c: New files implementing the new s390x port. * configure.ac, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_private.h, lib/Makefile.am, lib/jit_disasm.c, lib/lightning.c: Minor adaptation for the new s390x backend. * check/float.tst: Update for the s390x result of truncating +Inf to integer. * check/qalu_mul.tst: Add extra test cases to better test high word of signed multiplication as the result is adjust from unsigned multiplication on s390x. 2013-07-28 Paulo Andrade * check/lightning.c: Do not assume casting a double NaN or Inf to float will produce the expected float NaN or Inf. This is not true at least under s390x. 2013-07-28 Paulo Andrade * check/check.arm.sh, check/check.sh, check/check.swf.sh, check/check.x87.sh: Properly check test programs output, not just rely on the test program self testing the results and not crashing. 2013-07-28 Paulo Andrade * lib/jit_aarch64.c: Remove unused macros left from cut&paste of jit_arm.c. 2013-07-16 Paulo Andrade * include/lightning/jit_aarch64.h, lib/jit_aarch64-cpu.c, lib/jit_aarch64-fpu.c, lib/jit_aarch64.c: New files implementing the new aarch64 port, as a new architecture, not as an expansion of the existing armv[4-7] port. * check/lightning.c: Add aarch64 support and a small change to recognize character constants as immediate values. * check/float.tst: Add aarch64 preprocessor conditionals to select proper expected value when converting [+-]Inf and NaN to integer. * include/lightning/jit_arm.h, lib/jit_arm.c: Minor changes to better match the new aarch64 files. * configure.ac, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_private.h, lib/Makefile.am, lib/lightning.c: Minor adjustments for the aarch64 port. 2013-07-08 Paulo Andrade * NEWS, THANKS, configure.ac, doc/version.texi: Update for the 1.99a second alpha release. 2013-06-25 Paulo Andrade * lib/jit_mips.c: Correct cut&paste error that caused wrong stack offset calculation for double arguments in stack in the o32 abi. Correct typo in the __LITTLE_ENDIAN macro name, that came from cut&paste error in the original typo in lib/jit_ppc.c. * lib/jit_ia64.c, lib/jit_ppc.c: Correct typo in the __LITTLE_ENDIAN macro name. 2013-06-22 Paulo Andrade * check/lightning.c, configure.ac, include/lightning.h, lib/lightning.c: Add tests and quirks to build/detect and/or work on Irix. * include/lightning/jit_mips.h, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c: Adapt code to run in big endian mips, using the n32 abi. 2013-06-18 Paulo Andrade * include/lightning.h: Minor extra preprocessor testing to "detect" byte order on x86 solaris, that now builds and pass all test cases. 2013-06-18 Paulo Andrade * lib/jit_sparc-cpu.c: Correct compiler warning of value used before assignment. The usage is bogus as the api requires always patching jumps, but the random value used could cause an assertion due to invalid displacement. * lib/jit_sparc.c: Always load and store double arguments in stack as 2 float loads or stores, for safety, as unaligned access is not allowed in Sparc Solaris. 2013-06-14 Paulo Andrade * configure.ac: Force -mlp64 to CFLAGS on HP-UX ia64 port. It is the only supported mode, and expects gcc as C compiler. * include/lightning.h, lib/jit_ia64-cpu.c, lib/jit_ia64.c: Correct ia64 port to work on HP-UX that runs it in big endian mode. 2013-06-10 Paulo Andrade * lib/jit_hppa.c: Sanitize the cache synchronization inline assembly code that was doing twice the work and redundantly flushing the end address every loop iteration. 2013-06-09 Paulo Andrade * configure.ac, check/Makefile.am, doc/Makefile.am: Do not explicitly link to -ldl, but instead autodetect the library with dlopen, dlsym, etc. * check/lightning.c: Add workaround to apparently buggy getopt in HP-UX that sets optind to the wrong index, and use RTLD_NEXT on HP-UX instead of RTLD_DEFAULT to dlsym global symbols. * include/lightning.h: Rework definitions of wordsize and byte order to detect proper values on HP-UX. * lib/lightning.c: Minor correction to use MAP_ANONYMOUS instead of MAP_ANON on HP-UX. * lib/jit_hppa.c: Float arguments must be passed on integer registers on HP-UX, not only for varargs functions. Add code to properly clear instruction cache. This was not required on Debian hppa port, but may have been working by accident. * lib/jit_hppa-cpu.c: Follow pattern of HP-UX binaries and use bve,n instead of bv,n to return from functions. * lib/jit_hppa-fpu.c: For some reason "fst? frX,rX,(rY)" did not work on the tested computer (HP-UX B.11.23 U 9000/785 HP-UX) so the code was changed, at first for __hpux only to add the base and offset register and use the instruction with an immediate (zero) offset. 2013-06-07 Paulo Andrade * check/lightning.c, lib/jit_disasm.c, lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c, include/lightning.h, include/lightning/jit_ppc.h, include/lightning/jit_private.h: Adapt code to work on 32 bit AIX ppc using gcc. Most changes are basically to adapt the elf64 logic to 32 bit, as it does not use the same convention of 32 bit Darwin ppc. * check/stack.tst: Add a fake memcpy function to the test case if running under AIX, as it is not available to dlsym. * configure.ac: Check for getopt.h header, not available in AIX. 2013-06-01 Paulo Andrade * include/lightning/jit_hppa.h, lib/jit_hppa-cpu.c, lib/jit_hppa-fpu.c, lib/jit_hppa.c: New files implementing the hppa port. Built on Debian Linux PA-RISC 2.0, 32 bit. * check/float.tst: Add preprocessor for hppa expected values when converting NaN and +-Inf to an integer. * check/ldst.inc: Ensure double load/store tests use an 8 byte aligned address by default. * lib/lightning.c: Correct a bug found during tests in the new port, where qmul* and qdiv* were not properly setting one of the result registers as modified in the function, what would be a problem if the only "write" usage were the qmul* or qdiv*. * check/varargs.tst, check/varargs.ok: Add one extra interleaved integer/double test to validate proper code generation in the extra case. * check/lightning.c, configure.ac, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_private.h, lib/Makefile.am, lib/jit_disasm.c: Update for the hppa port. 2013-04-27 Paulo Andrade * check/varargs.tst: Correct misplaced .align directive that was causing the double buffer to not be aligned at 8 bytes. * lib/jit_ia64-cpu.c: Properly implement abi for excess arguments passed on stack. Simplify load/store with immediate displacement argument with zero value. Simplify some calls to "subi" changing to "addi" with a negative argument. Remove some #if 0'ed code, that could be useful in special conditions, but the most useful one would be to "optimize" "static" jit functions, but for the sake of simplicity, jit functions are implemented in a way that can be passed back to C code as C function pointers. Add an attribute to prototypes of several unused functions. These functions are defined for the sake of implementing all Itanium documented instructions, but a significant amount of them is not used by lightning. * lib/jit_ia64-fpu.c: Simplify load/store with zero immediate displacement and add unused attribute for functions not used by lightning, but required to provide macros implementing all Itanium documented instructions. * lib/jit_ia64.c: Update for the properly implemented abi for stack arguments. * lib/lightning.c: Mark an unused function as such. 2013-04-27 Paulo Andrade lib/jit_ia64-cpu.c: Correct immediate range check of integer comparisons when inverting arguments. Correct gei_u that was not decrementing immediate when inverting arguments. Correct b?add* and b?sub* that were not properly updating the result register. 2013-04-27 Paulo Andrade * lib/jit_ia64-cpu.c: Correct wrong mapping of 2 instructions in "M-, stop, M-, stop" translation, that was ignoring the last stop (implemented as a nop I- stop). * lib/jit_ia64-fpu.c: Properly implement fnorm.s and fnorm.d, as well as the proper integer to float or double conversion. 2013-04-27 Paulo Andrade * lib/jit_ia64-cpu.c: Correct bogus implementation of ldr_T for signed integers, that was using ld1.s, ld2.s and ld4.s. The ".s" stands for speculative load, not sign extend. * lib/jit_ia64-fpu.c: Correct bogus implementation of ldxr_T for float and double. The third (actually, second) argument is indeed added to the base register, but the base register is modified. The actual M7 implementation was already correct, just the ldxr_f and ldxr_d implementation that was kept in a prototype state, misinterpreting what M7 does. 2013-04-27 Paulo Andrade * lib/jit_ia64-cpu.c: Correct X2 pattern matching by preventing it to attempt to require a stop between the L and the X instruction; that is, check the registers and predicates before emitting the L instruction, not after. * lib/jit_ia64-fpu.c: Slightly simplify and correct divr_f and divrd_d implementation. * check/lightning.c: Add __ia64__ preprocessor define on Itanium. * check/alu.inc, check/clobber.tst, check/float.tst: Define several macros conditionally to __ia64__. This is required because __ia64__ jit generation can use way too many memory, due to not implementing instruction reordering to avoid as much as possible "stops", what causes way too many nops to be generated, as well as the fact that division and remainder requires function calls, and float division requires significant code to implement. 2013-04-27 Paulo Andrade * include/lightning.h: Add new backend specific movr_w_d, movr_d_w and movi_d_w codes as helpers to ia64 varargs functions arguments. * lib/jit_ia64-cpu.c: Correct wrong encoding of A5 small integers. Correct define of "mux" instruction modifiers. Correct ordering of arguments and predicates of cmp_xy implementation with immediate arguments; like most other codes with an immediate, the immediate is the second, not the third argument. * lib/jit_ia64-fpu.c: Actual implementation of the code to move to/from gpr to/from fpr, to implement varargs abi. * lib/jit_ia64.c: Make fpr argument registers not allocatable as temporaries, no need for the extra checks when there are plenty registers. * lib/jit_print.c, lib/lightning.c: Minor updates for the new movr_w_d, movr_d_w and movi_d_w codes. 2013-04-26 Paulo Andrade * lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c: Correct code to also insert a stop to break an instruction group if a register is written more than once in the same group. This may happen if a register is argument and result of some lightning call (not a real instruction). The most common case should be code in the pattern: movl rn=largenum ... mov rn=smallnum where "rn" would end up holding "largenum". But the problem possibly could happen in other circumstances. 2013-04-26 Paulo Andrade * include/lightning/jit_ia64.h, lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64.c: Relocate JIT_Rn registers to the local registers, as, like float registers, div/rem and sqrt are implemented as function calls, and may overwrite non saved scratch registers. Change patch_at to receive a jit_code_t instead of a jit_node_t, so that it is easier to "inline" patches when some instruction requires complex code to implement, e.g. uneq and ltgt. Correct arguments to FMA and FMA like instructions that, due to a cut&paste error were passing the wrong argument to the related F- implementation function. Rewrite ltgt to return the proper result if one (or both) of the arguments is unordered. 2013-04-26 Paulo Andrade * include/lightning/jit_ia64.h, include/lightning/jit_private.h, lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64.c, lib/lightning.c: Rework code to detect need of a "stop" to also handle predicates, as if a predicate is written, it cannot be read in the same instruction group. Use a single jit_regset_t variable for all registers when checking need for a stop (increment value by 128 for float registers). Correct wrong "subi" implementation, as the code executed is r0=im-r1, not r0=r1-im. Use standard lightning 6 fpr registers, and rework to use callee save float registers, that may be spill/reloaded in prolog/epilog. This is required because some jit instructions implementations need to call functions; currently integer div/mod and float sqrt, what may change the value of scratch float registers. Rework point of "sync" of branches that need to return a patch'able address, because the need for a "stop" before a predicate read causes all branches to be the instruction in slot 0, as there is no template to "stop" and branch in the same instruction "bundle". 2013-04-25 Paulo Andrade * include/lightning/jit_ia64.h, lib/jit_ia64-cpu.c, lib/jit_ia64-fpu.c, lib/jit_ia64.c: New files implementing the basic infrastructure of an Itanium port. The code compiles and can generate jit for basic hello world like functions. * check/lightning.c, configure.ac, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_private.h, lib/Makefile.am, lib/lightning.c: Update for the Itanium port. * lib/jit_mips-cpu.c, lib/jit_mips.c: Correct typo and make the jit_carry register local to the jit_state_t. This matches code reviewed in the Itanium port, that should use the same base logic to handle carry/borrow. 2013-04-10 Paulo Andrade * include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_mips-cpu.c, lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_sparc-cpu.c, lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86.c, lib/lightning.c: Change all jit_regset macros to take a pointer argument, to avoid structure copies when adding a port to an architecture with more than 64 registers. 2013-04-08 Paulo Andrade * lib/jit_arm.c, lib/jit_ppc.c: Do not rely on __clear_cache aligning to the next page boundary the end argument. It may actually truncate it. 2013-03-29 Paulo Andrade * include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_memory.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_sparc.c, lib/jit_x86.c, lib/lightning.c: Do not start over jit generation if can grow the code buffer with mremap without moving the base pointer. 2013-03-29 Paulo Andrade * lib/jit_memory.c: Implement a simple memory allocation wrapper to allow overriding calls to malloc/calloc/realloc/free, as well as ensuring all memory containing pointers is zero or points to allocated memory. * include/lightning.h, include/lightning/jit_private.h: Definitions for the memory allocation wrapper. * lib/Makefile.am: Update for new jit_memory.c file. * lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips.c, lib/jit_note.c, lib/jit_ppc.c, lib/jit_sparc.c, lib/jit_x86.c, lib/lightning.c: Use the new memory allocation wrapper code. 2013-03-22 Paulo Andrade * configure.ac, include/lightning/jit_private.h, lib/lightning.c: Remove dependency on gmp. Only a simple bitmap was required, and that was not enough reason to force linking to gmp and possible complications caused by it. 2013-03-10 Paulo Andrade * include/lightning.h: Add check for __powerpc__ defined in Linux, while Darwin defines __ppc__. * include/lightning/jit_ppc.h: Adjust register definitions for Darwin 32 bit and Linux 64 bit ppc usage and/or ABI. * include/lightning/jit_private.h: Add proper check for Linux __powerpc__ and an data definition for an workaround to properly handle code that starts with a jump to a "main" label. * lib/jit_disasm.c: Add extra disassembler initialization for __powerpc64__. * lib/jit_ppc-cpu.c: Add extra macros and functions, and correct/adapt previous ones to handle powerpc64. * lib/jit_ppc-fpu.c: Adapt for 64 bit wordsize. Basically add conversion from/to int32/int64 and proper handling of load/store offsets too large for 32 bit. * lib/jit_ppc.c: Add calls to 64 bit codes and adaptation for the PowerPC 64 bit Linux ABI. * lib/jit_arm.c, lib/jit_mips.c, lib/jit_sparc, lib/jit_x86.c, lib/lightning.c: Correct off by one error when restarting jit of a function due to finding too late that needs to spill/reload some register. Problem was found by accident on a very special condition during PowerPC 64 code adaptation. 2013-03-08 Paulo Andrade * check/lightning.c: Add missing ppc preprocessor definition. 2013-03-06 Paulo Andrade * check/float.tst: Comment out the int to negative infinity test in mips for the moment because not all Loongson agrees on the result. * lib/jit_disasm.c: Add a test instead of an assertion when loading symbols for disassembly due to a failure with a simple binutils build in Debian mipsel64. 2013-03-06 Paulo Andrade * include/lightning/jit_private.h, lib/jit_arm-cpu.c, lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips-cpu.c, lib/jit_mips.c, lib/jit_note.c, lib/jit_ppc-cpu.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_sparc-cpu.c, lib/jit_sparc.c, lib/jit_x86-cpu.c, lib/jit_x86.c, lib/lightning.c: Add an extra structure for data storage during jit generation, and release it after generating jit, to reduce a bit memory usage, and also to make it easier to understand what data is available during jit runtime. 2013-03-06 Paulo Andrade * lib/lightning.c: Make data and code buffer readonly. 2013-02-20 Paulo Andrade * doc/body.texi: Fool proof validate the examples of what an assembly-language programmer would write and correct the wrong sparc example. 2013-02-19 Paulo Andrade * doc/body.texi: Add back the SPARC code generation example. 2013-02-19 Paulo Andrade * check/lightning.c: Remove state flag to work with partial sparc port, by just disassembling if there was incomplete code generation. * jit_sparc-cpu.c: Correct wrong range check for immediate integer constants (off by one bit shift). Correct macro implementing equivalent "rd %y, rd" assembly. Implement qmul* and qdiv*. * jit_sparc.c: Update for qmul* and qdiv* and remove logic to handle incomplete code generation during sparc port. 2013-02-18 Paulo Andrade * check/float.tst: Add sparc to list of known NaN and +-Inf to integer conversion. * check/lightning.c: Define __sparc__ to preprocessor in the sparc backend. * include/lightning/jit_private.h: Correct wrong definition of emit_stxi_d, that has lived for a long time, but would cause problems whenever needing to spill/reload a float register. * include/lightning/jit_sparc.h: Can only use %g2,%g3,%g4 for scratch variables, as other "global" registers are reserved for the system, e.g. libc. Reorder float register naming to make it easier to access odd float registers, so that generating code for pusharg and getarg is easier for the IR. * lib/jit_mips-cpu.c, lib/jit_ppc-cpu.c: Update to match new code in jit_sparc-cpu.c. It must call jit_get_reg with jit_class_nospill if using the register to move an unconditional branch address to it, as the reload will not happen (actually could happen in the delay slot...) * lib/jit_sparc-cpu.c: Correct wrong macro definition for ldxr_s. Properly implement div* and implement rem. Div* needs to use the y register, and rem* needs to be synthesized. Correct b?sub* macro definitions. * lib/jit_sparc-fpu.c: Correct reversed float to/from double conversion. Correct wrong jit_get_reg call asking for a gpr and then using the fpr with that number. Correct wrong branch displacement computation for conditional branches. * lib/jit_sparc.c: Correct getarg_d and pushargi_d implementation. Add rem* entries to the switch converting IR to machine code. * lib/lightning.c: Correct a problem detected when adding the jit_class_nospill flag to jit_get_reg, that was caused when having a branch to an "epilog" node, what would cause the code to think all registers in unknown state were live, while in truth, all registers in unknown state in the "just after return" point are actually dead. 2013-02-17 Paulo Andrade * include/lightning/jit_sparc.h, lib/jit_sparc-cpu.c, lib/jit_sparc-fpu.c, lib/jit_sparc.c: New files implementing the basic framework of the sparc port. * configure.ac, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_private.h, lib/jit_disasm.c: Update for the sparc port framework. * lib/jit_mips.c: Correct reversed retr/reti logic. * lib/jit_ppc.c: Correct misspelled __LITTLE_ENDIAN. * lib/lightning.c: Always do byte hashing in hash_data, because the logic to "compress" strings causes large pointers to not be guaranteed aligned at 4 byte boundaries. Update for the sparc port framework. 2013-02-11 Paulo Andrade * lib/jit_arm.c: Correct jit_pushargi_f in the arm hardfp abi. Most of the logic uses even numbered register numbers, so that a float and a double can be used in the same register, but the abi requires packing the float arguments, so jit_pushargi_f needs to allocate a temporary register to modify only the proper register argument (or be very smart to push two immediate arguments if applicable). 2013-02-11 Paulo Andrade * include/lightning.h, lib/lightning.c: Implement the new jit_clear_state and jit_destroy_state calls. jit_clear_state releases all memory not required during jit_execution; that is, leaves only the mmap'ed data and code buffers allocated. jit_destroy_state releases the mmap'ed buffers as well as the jit_state_t object itself, that holds pointers to the code and data buffers, as well as annotation pointers (for disassembly or backtrace) in the data buffer. * lib/jit_note.c: Correct invalid vector offset access. * check/ccall.c, check/lightning.c, doc/ifib.c, doc/incr.c, doc/printf.c, doc/rfib.c, doc/rpn.c: Use the new jit_clear_state and jit_destroy_state calls, to demonstrate the new code to release all jit memory. * doc/body.texi: Add basic documentation and usage description of jit_clear_state and jit_destroy_state. 2013-02-11 Paulo Andrade * include/lightning/jit_private.h, lib/jit_note.c, lib/lightning.c: Store all annotation information in the mmap'ed area reserved for read only data. This adds code to not allocate memory for jit_note_t objects, and to relocate jit_line_t objects and its contents after calculating annotation information. The jit_line_t objects are relocated because it is not possible to always calculate before hand data layout because note information may be extended or redundant entries removed, as well as allowed to be added in non sequential order. A bug was also corrected in _jit_set_note, that was causing it to allocate new jit_line_t objects when not needed. It was still working correctly, but allocating way more memory than required. 2013-02-05 Paulo Andrade *include/lightning.h, lib/lightning.c: Add the new jit_live code to explicitly mark a register as live. It is required to avoid assuming functions always return a value in the gpr and fpr return register, and to avoid the need of some very specialized codes that vary too much from backend to backend, to instruct the optimization code the return register is live. * lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_x86.c: Update for the new jit_live code. * check/ret.ok, check/ret.tst: New files implementing a simple test case that would previously fail at least in ix86/x86_64. * check/Makefile.am: Update for new "ret" test case. 2013-02-05 Paulo Andrade * lib/jit_ppc-cpu.c, lib/jit_ppc.c: Validate and correct problems in the qmul and qdiv ppc implementation. 2013-02-04 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/jit_arm-cpu.c, lib/jit_arm.c, lib/jit_mips-cpu.c, lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc.c, lib/jit_x86-cpu.c, lib/jit_x86.c, lib/lightning.c: Implement the new qmul and qdiv instructions that return signed and unsigned lo/hi multiplication result and div/rem division result. These should be useful for jit translation of code that needs to know if a multiplication overflows (no branch opcode added) or if a division is exact (easy check if remainder is zero). * check/lightning.c, lib/jit_print.c, check/Makefile.am, check/all.tst: Update for the new qmul and qdiv instructions. * check/qalu.inc, check/qalu_div.ok, check/qalu_div.tst, check/qalu_mul.ok, check/qalu_mul.tst: New files implementing simple test cases for qmul and qdiv. 2013-01-30 Paulo Andrade * doc/body.texi: Correct "jmpi" description that incorrectly told it was possible to pass any address as jump target. The only way to do that is "movi+jmpr". 2013-01-30 Paulo Andrade * lib/jit_x86-cpu.c: Correct undefined behavior code. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56143 2013-01-29 Paulo Andrade * configure.ac: Use AC_CONFIG_HEADERS instead of AC_CONFIG_HEADER to have HAVE_CONFIG_H defined with latest aclocal. * include/lightning/jit_private.h, lib/lightning.c: Add new abstraction to use an heuristic to calculate amount of space required for jit generation, and code to reallocate buffer if did miscalculate it. * lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_x86.c: Update to use new code to estimate and resize of required buffer for jit code. * lib/jit_x86-cpu.c: Minor cosmetic change to avoid adding a non required rex prefix when calling a function pointer stored in a register. 2013-01-24 Paulo Andrade * check/Makefile.am: "make debug" target should pass only the main test tool program as argument for running gdb * configure.ac: Add the --enable-assertions options. * doc/Makefile.am, doc/body.texi, doc/lightning.texi: Major rewrite of the documentation to match the current implementation. * doc/version.texi: Automatic date update. * doc/ifib.c, doc/incr.c, doc/printf.c, doc/rfib.c, doc/rpn.c: Implementation of the documentation examples, that are also compiled during a normal build. * doc/p-lightning.texi, doc/porting.texi, doc/toc.texi, doc/u-lightning.texi, doc/using.texi: These files were renamed in the documentation rewrite, as the documentation was significantly trimmed due to full removal of the porting chapters. Better porting documentation should be added but for the moment it was just removed the documentation not matching the implementation. 2013-01-18 Paulo Andrade * lib/jit_note.c: Correct bounds check and wrong code keeping a pointer that could be changed after a realloc call. 2013-01-18 Paulo Andrade * check/3to2.tst, check/add.tst, check/allocai.tst, check/bp.tst, check/call.tst, check/ccall.c, check/clobber.tst, check/divi.tst, check/fib.tst, check/ldsti.tst, check/ldstr-c.tst, check/ldstr.tst, check/ldstxi-c.tst, check/ldstxi.tst, check/ldstxr-c.tst, check/ldstxr.tst, check/lightning.c, check/rpn.tst, check/stack.tst, check/varargs.tst, include/lightning.h, include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips.c, lib/jit_note.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_x86.c, lib/lightning.c: Extend the "jit_note" abstraction with the new "jit_name" call, that receives a string argument, and should usually be called to mark boundaries of functions of code generating jit (that is, it is not expected that the language generating jit map its functions to jit functions). 2013-01-17 Paulo Andrade * check/add.tst, check/allocai.tst, check/bp.tst, check/divi.tst, check/fib.tst, check/lightning.c, include/lightning/jit_arm.h, include/lightning/jit_mips.h, include/lightning/jit_ppc.h, include/lightning/jit_private.h, include/lightning/jit_x86.h: Make JIT_RET, JIT_FRET and JIT_SP private. These should not be used in any operations due to frequently having special constraints (usually JIT_FRET). JIT_FP must be made available because it must be used as the base register to access stack space allocated with jit_allocai. 2013-01-14 Paulo Andrade * include/lightning.h, lib/lightning.c: Add an extra align argument to the jit_data call (that should be made private), so that it should not align strings at 8 bytes. Correct the jit_note call to include the null ending byte when adding label/note names to the "jit data section". 2013-01-11 Paulo Andrade * lib/jit_note.c: New file implementing a simple string+integer annotation, that should be used to map filename and line number to offsets in the generated jit. * include/lightning.h, lib/lightning.c: Update for the new note code. Add an extra mandatory argument to init_jit, that is used as argument to bfd_openr. Change from generic void* to char* the argument to jit_note and add an extra integer argument, to map to filename and line number. * check/ccall.c, check/lightning.c, include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_disasm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_x86.c: lib/Makefile.am: Update for the new annotation code. * configure.ac, check/Makefile.am: Update to work with latest automake. 2013-01-09 Paulo Andrade * include/lightning.h, lib/jit_arm.c, jit_mips-fpu.c, lib/jit_mips.c, lib/jit_print.c, lib/jit_x86.c, lib/lightning.c: Remove the jit_code_getarg_{f,d} and jit_code_pusharg{i,r}_{f,d} calls, replacing them with the new, internal only, jit_movr_w_f, jit_mov{r,i}_f_w, jit_movr_ww_d, and jit_mov{i,r}_d_ww, that better describe the operation being done, and allow removing the hackish code to detect special conditions for arm when moving from/to vfp from/to a grp register pair. Rename jit_code_retval_{f,d} to jit_code_x86_retval_{f,d} as it is specific to 32 bit x86, and used to move abi return value in x87 register to a sse register. 2013-01-05 Paulo Andrade * check/cccall.c, check/ccall.ok: New test case to validate interleaved calls from/to C code and jit. * check/Makefile.am: Update for the new ccall test case. * include/lightning.h, lib/lightning.c: Add the new jit_address call that returns the real/final address of a "note" in the generated jit. It requires a jit_node_t as returned by the jit_note call, and is only valid after calling jit_emit. Add an intermediate solution to properly handle arm soft and softfp modes that move a double to an integer register pair. Currently it just adds extra tests for the condition, but the proper solution should be to have extra lightning codes for these conditions, codes which should be only used by the backends that need it, and merged with the existing jit_pusharg*_{f,d}. * include/lightning/jit_private.h: Add new jit_state_t flag to know it finished jit_emit, so that calls to jit_address are valid. * lib/jit_mips.c: Correct abi implementation so that the new ccall test case pass. Major problem was using _jit->function.self.arg{i,f} as boolean values, but that would cause lightning.c:patch_registers() to incorrectly assume only one register was used as argument when calling jit_regarg_p(); _jit->function.self.arg{i,f} must be the number of registers used as arguments (in all backends). * lib/jit_x86.c: Add workaround, by marking %rax as used, to a special condition, when running out of registers and the allocator trying to spill and reload %rax, but %rax was used as a pointer to a function, what would cause the reload to destroy the return value. This condition can be better generalized, but the current solution is good enough. * include/lightning/jit_ppc.h, lib/jit_ppc-cpu.c, lib/jit_ppc.c: Rewrite logic to handle arguments, as the original code was written based on a SysV pdf about the generic powerpc ABI, what did "invent" a new abi for the previous test cases, but failed in the new ccall test in Darwin PPC. Now it properly handles 13 float registers for arguments, as well as proper computation of stack offsets when running out of registers for arguments. 2013-01-02 Paulo Andrade * check/float.tst: Correct test case to match ppc also converting positive infinity to 0x7fffffff. * lib/jit_arm-swf.c: Correct typos with double underscores. * lib/lightning.c: Correct remaining wrong reverse jump logic. 2012-12-29 Paulo Andrade * lib/lightning.c: Correct both, wrong and confusing logic to compute the reverse of a jump. Now it properly matches C semantics for "eq" (==) and "ne" (!=) and correct computation of reverse of "uneq" as "gt". * check/branch.tst: Update "ne" float branch check that previously happened to be wrongly tested with a NaN argument. 2012-12-29 Paulo Andrade * check/float.ok, check/float.tst: New test cases implementing extensive validation of float comparison and branch code generation as well as integer conversion, involving NaN and [+-]Inf. * lib/jit_arm-swf.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c: Correct bugs found by new float test case. * lib/jit_x86.c: Correct cut&paste error added in commit to convert jit_arg* return value to a jit_node_t*, that would cause it to not properly handle double arguments in ix86. * check/Makefile.am: Update for the new test case. 2012-12-28 Paulo Andrade * check/lightning.c, include/lightning.h, lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_print.c, lib/jit_x86.c, lib/lightning.c: Change return value of jit_arg{,_f,_d} to a jit_node_t* object, that should be used as argument to jit_getarg_{c,uc,s,us,i,ui,l,f,d}. This just requires changing from jit_int32_t to jit_pointer_t (or jit_node_t*) the "handle" for the getarg calls, with the benefit that it makes it easy to implement patching of the stack address of non register arguments, this way allowing to implement variable size stack frames if applicable; useful if there are too many registers and jit functions uses only a few callee save registers. 2012-12-27 Paulo Andrade * lib/jit_arm.c, lib/jit_mips-cpu.c, lib/jit_mips.c: Correct regressions when patching jit_calli for a forward function. * lib/jit_ppc-cpu.c: Correct wrong arguments to ANDI opcode in jit_getarg_u{c,s} implementation. 2012-12-23 Paulo Andrade * check/call.ok, check/call.tst: New test cases to validate simple typed argument and return values in function calls. * check/lightning.c: Properly handle jit_movi of labels for backward and forward code labels. * check/Makefile.am: Update for new test case. 2012-12-23 Paulo Andrade * check/carry.ok, check/carry.tst: New test case to validate carry condition handling. * check/Makefile.am: Update for new test case. 2012-12-22 Paulo Andrade * lib/jit_ppc-cpu.c, lib/jit_ppc.c: Implement logic for jit_htonr for big endian, so that ppc (big endian) pass the new clobber.tst test case. 2012-12-22 Paulo Andrade * lib/jit_arm.c: Correct use of wrong argument offset variable in armv7l or float/double argument for varargs function in armv7hl. Correct jit_getarg* logic in software float mode to match expected behavior in other backends, that is, if a function is not called, it is safe to use a few lightning calls before a next jit_getarg* call, as done in the test case check/stack.tst. The proper solution should be to extend the parser in lib/lightning.c to check if there is some float operation that will call some (libgcc?) function, but software float arm should be a very uncommon backend for lightning, so, just load the already in place arguments saved to stack, assuming the register argument was clobbered (what should not be the case most times...). 2012-12-22 Paulo Andrade * check/clobber.ok, check/clobber.tst: New test case doing extensive validation tests to ensure registers not used in a operation are not clobbered. * check/Makefile.am: Update for new test case. 2012-12-21 Paulo Andrade * lib/lightning.c: Partially rewrite/revert code to compute initial register live state at the start of a basic block. The original logic was corrupted when adding optimizations to do as few computations as possible in jit_update. The reglive field must be always a known set of live registers at the start of a basic block. The value that was incorrect was the regmask field, that must be the set of registers that are in unknown state, because they are not known live, neither set (or possibly not set) in the basic block, and *must* store the state at the start of the basic block. 2012-12-20 Paulo Andrade * include/lightning/jit_ppc.h: Correct mismatch of JIT_F{1,5} with enum codes, that were correct, and returned by jit_f(). * lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: Properly implement and better describe values when generating stack frames. 2012-12-18 Paulo Andrade * check/stack.ok, check/stack.tst: New files to test data integrity on a deep chain of stack frames. * lib/jit_arm.c, lib/jit_arm-cpu.c, lib/jit_mips.c, lib/jit_mips-cpu.c, lib/jit_ppc.c, lib/jit_ppc-cpu.c, lib/jit_x86.c, lib/jit_x86-cpu.c: Calculate _jit->function->stack in the emit stage, otherwise it will calculate it wrong if need to jit_allocai space to spill registers. * lib/lightning.c: Correct wrong offset when updating the "current" jit function pointer in the code that may need to allocate stack space to spill registers. * check/lightning.c: Correct off by one data space check. * check/Makefile.am: Update for new test case. 2012-12-17 Paulo Andrade * check/fop_abs.ok, check/fop_abs.tst, check/fop_sqrt.ok, check/fop_sqrt.tst: New files implementing simple test cases for the extra float operations. * check/Makefile.am: Update for new test cases. * check/alu.inc: Add an extra macro to check for unordered equality on tests where it is expected to use NaN as an argument. * check/lightning.c: Minor change for proper/common argument syntax handling ommiting arguments to options. 2012-12-17 Paulo Andrade * check/Makefile.am: Automatically generate pattern list of tests with alternate jit generation options. This should prevent typos and needing to change multiple places after a change. 2012-12-14 Paulo Andrade * check/lightning.c: Remove the ".cpu name value" syntax, as it was not able to do proper changes before the jit internal data structure was initialized. Now it supports several getopt options to force using different jit generation options, effectively replacing the previous syntax. * check/run-test: Add simple extra logic to handle differently named test scripts, used to test things like x87 coprocessor in ix86, and arm instruction set or software float in armv7l. * configure.ac: Add some AC_RUN_IFELSE calls to figure at compile time if can test different code generation options, and update Makefile generation accordingly. * check/Makefile.am, lib/jit_arm.c, lib/jit_x86.c: Update to properly work with the test tool updating the jit_cpu global information. * check/check.arm.sh, check/check.swf.sh, check/check.x87.sh: New wrapper files passing -mthumb=0, mvfp=0 and -mx87=1 to the test tool, if applicable, so that it can validate alternate code generation options on test hosts that support them. 2012-12-14 Paulo Andrade * lib/jit_x86-x87.c, lib/jit_x86.c: Correct test cases in ix86 when using the x87 coprocessor instead of sse2+. 2012-12-14 Paulo Andrade * include/lightning.h, include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_x86.c, lib/lightning.c: Make jit_ellipsis implementation not backend specific. It is not intended to handle va_list like objects at runtime, as jit_arg* and jit_getarg* return constant values resolved at parse time, so, effectively it is not possible to create printf like jit functions, as there is no va_start, va_arg, va_end, etc, abstraction. This limitation should be kept for the sake of making new ports easier. 2012-12-14 Paulo Andrade * include/lightning.h, lib/lightning.c: Add two extra wrapper functions to avoid need for excess pointer to/from word casts. * check/lightning.c: Only need for pointer to/from word cast now is jit_movi, update accordingly. 2012-12-13 Paulo Andrade * check/varargs.ok, check/varargs.tst: New test cases implementing simple varargs calls with a large amount of arguments to exercise excess arguments on stack. * include/lightning.h: Include config.h if HAVE_CONFIG_H is defined. * lib/jit_arm.c: Allocate a fpr register, not a gpr one for temporary when pushing varargs arguments in the stack. * lib/jit_arm-swf.c: Correct code changing the wrong offset in jit_absr_d and jit_negr_d in software float. * lib/jit_mips.c: Correct calculation of offsets of arguments on stack. * lib/jit_ppc.c: Correct bogus logic for "next" offset of arguments on stack and adjust for fixed offset of stack arguments. 2012-12-12 Paulo Andrade * include/lightning.h, lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_x86.c, lib/lightning.c: Change jit_prepare to no longer receive an argument. If receiving an argument, it should be an ABI specifier, not a boolean if varargs or not, and add the new jit_ellipsis call, to specify where the ellipsis is in the C prototype of the function being called. Note that currently it is not supported to define varargs functions and it will be ignored if calling jit_ellipsis not in a prepare/finish* block, but this should be addressed. * check/allocai.tst, check/alu_add.tst, check/alu_and.tst, check/alu_com.tst, check/alu_div.tst, check/alu_lsh.tst, check/alu_mul.tst, check/alu_neg.tst, check/alu_or.tst, check/alu_rem.tst, check/alu_rsh.tst, check/alu_sub.tst, check/alu_xor.tst, check/alux_add.tst, check/alux_sub.tst, check/bp.tst, check/branch.tst, check/cvt.tst, check/divi.tst, check/fib.tst, check/ldsti.tst, check/ldstr-c.tst, check/ldstr.tst, check/ldstxi-c.tst, check/ldstxi.tst, check/ldstxr-c.tst, check/ldstxr.tst, check/rpn.tst, check/lightning.c: Update for the change to jit_prepare and addition of jit_ellipsis. 2012-12-11 Paulo Andrade * lib/jit_ppc-cpu.c: Make movr a function that checks arguments so that other code can safely assume it is a noop if src and dst are the same register. Implement rem{r,i}{,_u} as a div{,u}/mul/sub. Correct ANDIS, ORIS and XORIS calls to cast the argument to unsigned before the shift to avoid an assertion if the argument had the topmost bit set. Implement lshi, rshi and rshi_u as functions to test for a zero argument, that would otherwise trigger an assertion when computing the shift value. Do a simple implementation of bm{s,c}{r,i} with a temporary, "andr" of arguments and jump based on comparison with zero. Correct typo in ldxi_c. * lib/jit_ppc-fpu.c: Correct wrong arguments to FDIV* and STF*. * lib/jit_ppc.c: Correct wrong check for 6 instead of 8 integer arguments in registers. If calling a varargs function and passing a float or double argument, also either store the value in the stack or in integer registers, as varargs functions do not fetch it from float registers. Add "case" for new functions and incorrectly missing ones. Call libgcc's __clear_cache, that should know what to do if the hardware needs flushing cache before execution. * lib/lightning.c: Do a simple/trivial logic in jit_regset_scan1, that should make it easier for the compiler to optimize it, and that also corrects the previously wrong code for big endian, and that was causing problems in ppc due to not saving all callee save registers as it was not "finding" them in the regset due to the little endian assumption bug. 2012-12-11 Paulo Andrade * configure.ac: Only default to using the builtin disassembler if on GNU/Linux. This should be temporary, due to requiring /proc/self/exe. Correctly check $target_cpu for powerpc. * include/lightning/jit_ppc.h: Correctly implement jit_v_num. * include/lightning/jit_private.h: Declare proper prototype for jit_init_debug and jit_finish_debug. * lib/jit_ppc-cpu.c: Remove code to save/restore callee save float registers, as it is not required since those float registers are not usable currently. Change prolog and epilog generation to, at least comparing code, match what gcc generates in "gcc -O0", but it is still failing in Darwin PPC, apparently due to the __clear_cache call not being enough, as frequently it will also fail to execute, and the code buffer is all zeroes. * lib/lightning.c: Do not fail in jit_regset_scan1 calls due to passing 64 as argument on computers with 64 registers. 2012-12-10 Paulo Andrade * lib/jit_mips-cpu.c: Correct all current test cases. Call the "xori" not the "XORI" macro for jit_xori implementation, as the XORI macro handles only 16 bit unsigned values. Call the "movr" macro, not the "movi" macro in the special case of adding or subtracting zero. Use the proper temporary register in the jit_andr implementation. 2012-12-09 Paulo Andrade * check/alu.inc, check/alu_add.ok, check/alu_add.tst, check/alu_and.ok, check/alu_and.tst, check/alu_com.ok, check/alu_com.tst, check/alu_div.ok, check/alu_div.tst, check/alu_lsh.ok, check/alu_lsh.tst, check/alu_mul.ok, check/alu_mul.tst, check/alu_neg.ok, check/alu_neg.tst, check/alu_or.ok, check/alu_or.tst, check/alu_rem.ok, check/alu_rem.tst, check/alu_rsh.ok, check/alu_rsh.tst, check/alu_sub.ok, check/alu_sub.tst, check/alu_xor.ok, check/alu_xor.tst, check/alux_add.ok, check/alux_add.tst, check/alux_sub.ok, check/alux_sub.tst, check/branch.ok, check/branch.tst: New test cases for arithmetic and branch tests. * check/Makefile.am: Update for new test cases. * include/lightning/jit_private.h: Make the jit_reg_free_p macro shared by all backends. Previously was added for the arm backend, but is useful in the x86_64 backend when checking state of "special purpose register". Also add the new jit_class_named register class, that must be or'ed with the register value if calling jit_get_reg expecting an specific value, because the specific register value may be zero, that previously was treated as no register requested. * lib/jit_arm-cpu.c: Correct argument order for T2_MVN. * lib/jit_arm-swf.c: Call the proper function for double divide. The "software float" implementation just calls libgcc functions. * lib/jit_arm.c: Return float/double values in the float register if using the hard float ABI. * lib/jit_x86-cpu.c: Change the can_sign_extend_int_p macro to not include -0x80000000L, because there is code that "abuses" it and thinks it can negate the immediate value after calling that macro. Correct implementation of jit_subi that had a wrong code patch logic doing subtraction with reversed arguments. Correct REX prefix calculation in the jit_muli implementation. Correct logic to get/unget %*ax and %*dx registers in divremr and divremi. Correct divremi that was using the symbolic, unique %*ax value in on place (not using the _REGNO name suffix). Correct cut&paste error causing it to use "xor" instead of "or" in one code path of the jit_ori implementation. Correct several flaws when clobbering registers and/or when one of the arguments was %*cx in the rotshr wrapper function implementing most shift operations. * lib/lightning.c: No longer expect that the backend be smart enough to know what to do when asking for a named register if that register is already an argument or is live. It fails if it is an argument, or if register is live, fails if cannot spill. No longer incorrectly assume that eqr_{f,d} and ltgr_{f,d} are safe to inverse value tests in jump thread optimization. 2012-12-05 Paulo Andrade * check/Makefile.am, check/cvt.ok, check/cvt.tst: Add new "cvt" test case to test conversion from/to int/float types. * check/lightning.c: Only define truncr_{f,d}_l in 64 bit mode. * include/lightning.h: Correct typo that caused it to define jit_truncr_{f,d}_l in 32 bit mode. * lib/jit_arm-cpu.c: Avoid assertion failure in the signed/unsigned extend opcodes generation as it shares an interface for 3 argument opcode generation. * lib/jit_x86-cpu.c: Correct wrong argument passed to jit_unget_reg in the andi implementation and wrong byte unsigned extend code generation. * lib/jit_x86-sse.c: Correct conversion from "word" to float or double as is dependent on wordsize. 2012-12-05 Paulo Andrade * check/ldstr-c.ok, check/ldstr-c.tst, check/ldstxi-c.ok, check/ldstxi-c.tst, check/ldstxr-c.ok, check/ldstxr-c.tst: New test case files testing load clobbering the base and/or index register; * check/ldst.inc: New file with common definition for all the ldst* test cases. check/Makefile.am, check/ldsti.tst, check/ldstr.tst, check/ldstxi.tst, check/ldstxr.tst: Update for new common definitions file and new register clobber ldst tests. 2012-12-05 Paulo Andrade * lib/jit_mips-fpu.c: Correct wrong register order in stxr_{f,d} in the mips backend. 2012-12-05 Paulo Andrade * lib/jit_arm-vfp.c: Correct regression found in armv7l with latest test cases. 2012-12-05 Paulo Andrade * check/ldstxi.tst, check/ldstxr.tst: Correct wrong argument order for 32 bit mode tests. * configure.ac: Correct check for ix86 target_cpu. 2012-12-05 Paulo Andrade * check/ldstr.ok, check/ldstr.tst, check/ldsti.ok, check/ldsti.tst, check/ldstxr.ok, check/ldstxr.tst, check/ldstxi.ok, check/ldstxi.tst: New test case files exercising a very large amount of register combinations to verify load/store implementation. * check/Makefile.am: Update for new test cases. * lib/jit_x86-cpu.c: Correct wrong argument order when computing REX prefix for {ld,st}r_T codes; 2012-12-04 Paulo Andrade * lib/jit_mips-fpu.c, lib/jit_mips.c: Implement missing mips jit_sqrtr_{f,d} codes. * check/all.tst, include/lightning.h, lib/jit_print.c: Change declaration order and call order in all.tst of {add,sub}c and {add,sub}x. *c must be called before to set the carry and *x second to use the carry and keep it set. The wrong call order was causing all.tst to fail in mips, where a register is allocated to keep a global carry state. 2012-12-04 Paulo Andrade * include/lightning/jit_mips.h, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c: Correct float/double argument handling and make the mips backend pass the initial test cases. * include/lightning.h, ib/jit_print.c, lib/lightning.c: Add extra enum values for argument handling functions that could not be abstracted to the current codes, that is, when float values need to move from/to gpr from/to fpr. It would be more tempting to add such primitives, but they would have wordsize limitations, and it is not expected to add codes with one gpr argument for 64 bit and two for 32 bit. * lib/jit_ppc.c: Check _jit->function before calling jit_epilog() to avoid a runtime exception. 2012-12-04 Paulo Andrade * include/lightning/jit_mips.h, lib/jit_mips.c: Update to make the mips backend compile in a qemu image. * lib/jit_ppc.c: Minor adaptations to help in having the ppc backend compilable. 2012-12-03 Paulo Andrade * configure.ac, include/lightning/jit_private.h, lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm.c, check/Makefile.am: Correct implementation of the arm backend port to build and pass the current test cases. Tested on armv7 with softfp abi. * lib/jit_disasm.c: Rename and change prototype of static disassemble function as in the arm backend it is required to access state information stored in the jit_state_t object. * check/3to2.tst, check/add.tst: Correct test case code assuming JIT_RO and JIT_RET are the same, and even if they are the same, the logic was incorrect because it must always call jit_retval* to fetch a function call return before any other instruction. The arm backend hash a special condition if jit_retval is not called, because "r0" is not JIT_R0, but is JIT_RET and *also* the first argument for a called function, so JIT_RET must be only used as an argument to jit_retval. 2012-12-03 Paulo Andrade * check/all.tst, check/lightning.c: Only declare or use 64 bit interfaces on 64 bit builds. * check/fib.tst: Use simpler logic to not need preprocessor conditionals for 32 or 64 bit. * include/lightning.h: Only declare 64 bit macros on a 64 bit build. Code using lightning must know about wordsize and the jit generation limitations, also, this way it generates a compile time failure, not a runtime assertion. * include/lightning/jit_x86.h: Correct typo in macro name. * lib/jit_arm.c, lib/jit_arm-cpu.c, lib/jit_mips.c, lib/jit_mips-cpu.c, lib/jit_ppc.c, lib/jit_ppc-cpu.c, lib/jit_x86.c, lib/jit_x86-cpu.c: Correct wrong code to get current jit function pointer. * lib/lightning.c: Move call to the simplify() optimization to after register liveness is known. Previous code did work by accident but now with proper test cases the problem was noticed. * lib/jit_disasm.c: Always cast bfd_vma to long long when passing it as printf argument. 2012-12-03 Paulo Andrade * configure.ac, check/Makefile.am, check/check.sh, doc/Makefile.am, include/lightning/Makefile.am, lib/Makefile.am: Correct make distcheck. 2012-12-02 Paulo Andrade * lib/jit_ppc.c: Assign copyright ownership to FSF. * lib/jit_x86-cpu.c: Correct integer multiplication that was generating code with reversed register arguments. * check/rpn.ok, check/rpn.tst: New test case file. 2012-12-02 Paulo Andrade * lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c: Actually change copyright owner to FSF as avertised. * lib/jit_arm-cpu.c, lib/jit_arm-swf.c, lib/jit_arm-vfp.c, lib/jit_arm.c, lib/jit_mips-cpu.c, lib/jit_mips-fpu.c, lib/jit_mips.c, lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c: New files implementing initial code different jit backends. * include/lightning/jit_private.h: Add extra field to the private jit_patch_t type, required by the arm port. * lib/Makefile.am: Update for the new backend implementation files. 2012-12-02 Paulo Andrade * check/Makefile.am: Add proper "make clean" rule and missing check.sh to EXTRA_DIST. 2012-12-02 Paulo Andrade * .gitignore: Update pattern of ignored files. * check/Makefile.am: Add rule to build liblightning.la dependency in case of running "make check" before building the library. 2012-12-02 Paulo Andrade * lightning/Makefile.am, lightning/asm-common.h, lightning/core-common.h, lightning/fp-common.h, lightning/funcs-common.h, lightning/i386/Makefile.frag, lightning/i386/asm-32.h, lightning/i386/asm-64.h, lightning/i386/asm.h, lightning/i386/core-32.h, lightning/i386/core-64.h, lightning/i386/core.h, lightning/i386/fp-32.h, lightning/i386/fp-64.h, lightning/i386/fp.h, lightning/i386/funcs.h, lightning/ppc/asm.h, lightning/ppc/core.h, lightning/ppc/fp.h, lightning/ppc/funcs.h, lightning/sparc/asm.h, lightning/sparc/core.h, lightning/sparc/fp.h, lightning/sparc/funcs.h: Removed. The core logic is used in the new code, and new mips and arm ports will be added. At first, sparc will not be supported as it has not yet been ported to the new engine. 2012-12-02 Paulo Andrade * tests/Makefile.am, tests/3to2.c, tests/3to2.ok, tests/add.c, tests/add.ok, tests/allocai.c, tests/allocai.ok, tests/bp.c, tests/bp.ok, tests/divi.c, tests/divi.ok, tests/fib.c, tests/fib.ok, tests/fibdelay.c, tests/fibdelay.ok, tests/fibit.c, tests/fibit.ok, tests/funcfp.c, tests/funcfp.ok, tests/incr.c, tests/incr.ok, tests/ldst.c, tests/ldst.ok, tests/ldxi.c, tests/ldxi.ok, tests/modi.c, tests/modi.ok, tests/movi.c, tests/movi.ok, tests/printf.c, tests/printf.ok, tests/printf2.c, tests/printf2.ok, tests/ret.c, tests/ret.ok, tests/rpn.c, tests/rpn.ok, tests/rpnfp.c, tests/rpnfp.ok, tests/sete.c, tests/sete.ok, tests/testfp.c, tests/testfp.ok, tests-run-test: Removed previous test suite, in favor of a newer one in the check subdirectory. * check/3to2.ok, check/3to2.tst, check/add.ok, check/add.tst, check/allocai.ok, check/allocai.tst, check/bp.ok, check/bp.tst, check/divi.ok, check/divi.tst, check/fib.ok, check/fib.tst: New sample input for the new test program, loosely matching several of the previous test cases. * check/Makefile.am: New test suite makefile. * check/check.sh, check/run-test: New wrapper files for the new test suite. * check/lightning.c: New file. The main driver of the new test suite, that compiles to a parser of a very simple assembly like language, generates jit and executes it. * check/all.tst: New file. A generic debug and sample test file with a directive to prevent it from being executed, and useful to read disassembly of all possible instructions, using a fixed set of registers. * include/Makefile.am, include/lightning.h, include/lightning/Makefile.am, include/lightning/jit_arm.h, include/lightning/jit_mips.h, include/lightning/jit_ppc.h, include/lightning/jit_private.h, include/lightning/jit_x86.h, lib/Makefile.am, lib/jit_disasm.c, lib/jit_print.c, lib/jit_x86-cpu.c, lib/jit_x86-sse.c, lib/jit_x86-x87.c, lib/jit_x86.c, lib/lightning.c: New files. These files are written from scratch, only by , and have now copyright assignment to the FSF. This is the core of the new lightning rework. Previously it was integrated in code with a garbage collector and several custom types like vectors and hash tables, so this first code merge with lightning converts that code into a library extracting only the jit bits, and at first only for x86_64 GNU/Linux. * lightning.h, m4/lightning.m4: Removed. These are no longer required in the new lightning code. .gitignore, Makefile.am, configure.ac: Update for the new lightning code. 2012-12-02 Paulo Andrade * .cvsignore: Removed for extra cleanup. * build-aux: Rename directory to m4. * m4: Renamed to "default" name and for consistency with merge with code rework to be imported in lightning. * .gitignore, configure.ac, Makefile.am, doc/Makefile.am: Update for build-aux to m4 rename. 2012-12-01 Paulo Andrade * opcode/Makefile.am, opcode/Makefile.in, opcode/ansidecl.h, opcode/bfd.h, opcode/dis-asm.h, opcode/dis-buf.c, opcode/disass.c, opcode/i386-dis.c, opcode/i386.h, opcode/ppc-dis.c, opcode/ppc-opc.c, opcode/ppc.h, opcode/sparc-dis.c, opcode/sparc-opc.c, opcode/sparc.h, opcode/sysdep.h: Removed. Do not bundle GNU binutils files. * aclocal.m4, configure, Makefile.in, config.h.in, doc/Makefile.in, lightning/Makefile.in, tests/Makefile.in: Removed. Do not maintain autogenerated files that also generate too much diff noise when regenerated in git. * build-aux/help2man, build-aux/texinfo.tex, build-aux/texi2dvi: Removed. Buildenvironment must have an up to date version from upstream installed. * build-aux/config.guess, build-aux/config.sub, build-aux/depcomp, build-aux/install-sh build-aux/mdate-sh build-aux/missing: Removed. Do not maintain a copy of automake files in git. Release tarballs must use an up to date version. * lightningize.in, doc/lightningize.1: Removed. Do not encourage bundling lightning in other packages. It should use a system package or a proper thirdy part subdirectory. * INSTALL: Removed. Autoreconf removes it and creates a symlink when regenerating files, so, avoid conflicts in git and let automake create the symlink. * .gitignore: Add INSTALL and autogenerated files. * configure.ac, Makefile.am: Update for removal of opcode subdir, auto generated files and lightningize. * tests/Makefile.am, tests/3to2.c, tests/add.c, tests/bp.c, tests/fib.c, tests/fibdelay.c, tests/fibit.c, tests/funcfp.c, tests/incr.c, tests/printf.c, tests/rpn.c, tests/rpnfp.c, tests/sete.c, tests/testfp.c: Update for removal of opcode subdir. * doc/Makefile.am: Update for removal of lightningize. * configure.ac, lightning/ppc/funcs.h, lightning/sparc/funcs.h, lightning/i386/fp.h, lightning/i386/core.h, lightning/i386/asm.h, tests/3to2.c, tests/add.c, tests/bp.c, tests/fib.c, tests/fibdelay.c, tests/fibit.c, tests/funcfp.c, tests/incr.c, tests/printf.c, tests/rpn.c, tests/rpnfp.c, tests/sete.c, tests/testfp.c: Remove LIGHTNING_CROSS, it is half supported and incomplete. * tests/3to2.c, tests/funcfp.c, tests/rpnfp.c: Remove preprocessor check on JIT_FPR. If no hardware registers are available, the backend must provide an alternative for software float. * lightning/ppc/core.h, lightning/sparc/core.h, tests/Makefile.am: Remove JIT_NEED_PUSH_POP. It is absolutely not trivial to implement properly on some backends due to stack alignment constraints, and whenever it is required, using jit_allocai and using a properly aligned stack vector, or a heap buffer, is better. * tests/push-pop.c, tests/push-pop.ok: Removed due to JIT_NEED_PUSH_POP no longer available. 2011-02-28 Paolo Bonzini * lightning/i386/core-64.h: Add jit_add{c,x}{i,r}_l, jit_mulr_{l,ul}_, fix jit_mul{i,r}_{l,ul}. 2010-08-20 Paolo Bonzini * lightning/i386/fp-64.h: Return patch address from jit_bXYr_{f,d}. Reported by Paulo César Pereira de Andrade. * lightning/ppc/fp.h: Likewise. * lightning/sparc/fp.h: Implement FP branches. 2010-08-18 Paolo Bonzini * lightning/i386/fp-64.h: Fix jp in jit_bner_{f,d}. 2010-08-18 Paolo Bonzini * lightning/i386/fp-32.h: Fix -D_ASM_SAFETY compilation. Reported by Paulo César Pereira de Andrade. 2010-08-15 Paolo Bonzini * tests/ldst.c: Update. * tests/Makefile.am: Use -ffloat-store to compile it. 2010-08-15 Paolo Bonzini * lightning/i386/core.h (jit_ldr_c, jit_ldxr_c, jit_ldr_s, jit_ldxr_s): Move... * lightning/i386/core-32.h: ... here. * lightning/i386/core-64.h (jit_ldr_c, jit_ldxr_c, jit_ldr_s, Use movsbq and movswq. 2010-08-10 Paulo César Pereira de Andrade * lightning/i386/core-32.h (jit_replace): Use MOVLrr, not MOVLir. (jit_movbrm): Check index register as well. * lightning/i386/fp-64.h: Add jit_extr_f_d and jit_extr_d_f. * lightning/fp-common.h: Add jit_extr_f_d and jit_extr_d_f. 2010-07-28 Paolo Bonzini * tests/Makefile.am: Add ldst test. * tests/Makefile.in: Regenerate. * tests/ldst.c: New. * tests/ldst.ok: New. 2010-07-28 Paolo Bonzini * THANKS: Add Paulo Cesar Pereira de Andrade. * doc/porting.texi: Fix ordering of arguments in jit_stxi. * lightning/i386/core-32.h (jit_replace): Remove cmp argument. * lightning/i386/fp-64.h (jit_movi_f): Fix. 2010-07-26 Paolo Bonzini * lightning/i386/core-32.h (jit_replace): Move here (removed 2009-03-01). 2010-07-19 Paolo Bonzini * build-aux/lightning.m4: Always set and replace lightning_frag. * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * config.h.in: Regenerate. * configure: Regenerate. * doc/Makefile.in: Regenerate. * doc/lightningize.1: Regenerate. * doc/version.texi: Regenerate. * lightning/Makefile.in: Regenerate. * opcode/Makefile.in: Regenerate. * tests/Makefile.in: Regenerate. 2009-03-01 Paolo Bonzini * lightning/i386/core-64.h: Use Mike's macros for x86-64 too. * lightning/i386/core.h: Remove jit_replace. 2009-02-27 Mike Spivey * lightning/i386/core.h: Rewrite shift-handling macros. * lightning/fp-common.h: Fix jit_extr_{f_d,d_f}. 2009-02-17 Mike Spivey * lightning/i386/core.h: Fix blunder in operand order. 2009-02-17 Paolo Bonzini * lightning/i386/fp-32.h: Another fix to jit_fp_btest. 2009-02-17 Paolo Bonzini * lightning/fp-common.h: Define double branches if missing. * lightning/i386/asm.h: Define JC and JNC mnemonics. * lightning/i386/fp-32.h: Fix jit_fp_btest. All reported by Mike Spivey. 2008-10-09 Paolo Bonzini * lightning/ppc/funcs.h (jit_flush_code): Subtract 1 from end. Reported by Eli Barzilay and Matthew Flatt. 2008-08-23 Nix * lightning/i386/Makefile.frag: fp-32.h and fp-64.h are target files. 2008-07-02 Laurent Michel * lightning/ppc/funcs.h (jit_flush_code): modified the computation of start/end. The pointer arithmetic was done without casting. It prevented compilation with recent gcc versions. * lightning/ppc/core.h (jit_pushr_i): The offset for the store was incorrect. Should have been 4 bytes below SP (not above). * lightning/ppc/core.h (jit_popr_i): The offset for the load was incorrect. Should have been 0 (not +8). 2008-06-17 Paolo Bonzini * lightning/i386/asm-64.h: Forward IMULQir to IMULQirr, fix REXQ order for IMULQirr. 2008-06-17 Paolo Bonzini * lightning/i386/core.h: Fix _rN vs. _rR. 2008-06-16 Paolo Bonzini * lightning/i386/core.h: Use jit_save in jit_replace. Move JIT_R definition... * lightning/i386/core-32.h: ... here; define jit_save so that the core.h has no effect on the 32-bit backend. * lightning/i386/core-64.h: Place JIT_R1/JIT_R2 in R10/R11, place outgoing arguments in the right spot from the beginning, define jit_save, fix jit_reg8/jit_reg16. 2008-06-15 Paolo Bonzini * lightning/i386/core-64.h: Rewrite argument passing to support up to 6 arguments and generate less code. 2008-06-14 Laurent Michel * lightning/i386/core-64.h (jit_movi_l): When the operand is 0, the XOR should be on a quadword. * lightning/i386/core-64.h (jit_prolog): Keep 16-byte stack alignment. (jit_ret): Always use LEAVE. 2008-06-13 Laurent Michel * lightning/i386/core-64.h: Add (void) casts for C++ compatibility. * lightning/i386/asm.h: Likewise. 2008-06-12 Paolo Bonzini * lightning/i386/core.h: Move JIT_V definition... * lightning/i386/core-32.h: ... here. * lightning/i386/core-64.h: ... and here. Avoid dancing between RSI/RDI and R12/R13, and place JIT_V1/JIT_V2 in R12/R13. 2008-06-11 Paolo Bonzini * build-aux/lightning.m4: Adjust LIGHTNING_BACKENDS, don't use suffix support to distinguish i386/x86_64. * lightning/i386/Makefile.frag: Use LIGHTNING_TARGET_FILES to distribute *-32.h and *-64.h files now. * lightning/i386/asm-i386: Moved to... * lightning/i386/asm.h: Include the appropriate subtarget file. * lightning/i386/core-i386: Moved to... * lightning/i386/core.h: Include the appropriate subtarget file. * lightning/i386/fp.h: New, include the appropriate subtarget file. * lightning/i386/asm-32: Do not include asm-i386.h. * lightning/i386/asm-64.h: Likewise. * lightning/i386/core-32: Do not include core-i386.h. * lightning/i386/core-64.h: Likewise. * lightning/Makefile.am: Adjust for renamed files. * configure.ac: Define LIGHTNING_TARGET here. * opcode/disass.c: Change list of valid LIGHTNING_TARGET values. * lightningize.in: Robustify against missing subtarget files. 2008-06-11 Paolo Bonzini * lightning/i386/core-32.h: Use MOVLir instead of jit_movi_l to implement jit_movi_p. 2008-06-11 Paolo Bonzini * lightning/i386/core-32.h: Use separate __APPLE__ and SysV prolog/ret macros. Subtract 12 bytes in __APPLE__ case to keep stack aligned, and always use LEAVE in the epilog. 2008-06-11 Paolo Bonzini * lightning/i386/core-i386.h: Fix C++ incompatibility. 2008-06-10 Laurent Michel * lightning/i386/core-i386.h: Fix jit_replace8 for case when one of the operands is _EAX. 2008-05-19 Paolo Bonzini * tests/run-test: Avoid CRLF issues on mingw. 2008-03-21 Paolo Bonzini * lightning/i386/core-64.h: Fix jit_{ld,st}{,x}i_{i,l}. Remove jit_ld{,x}i_ul. * lightning/core-common.h: Make jit_ld{,x}{i,r}_ul always a synonym of the _l variant. * doc/porting.texi: Document this. 2008-03-19 Paolo Bonzini * lightning/i386/core-64.h: Fix uses of jit_qop_. 2008-03-19 Paolo Bonzini * lightning/i386/core-64.h: Add boolean operations. 2008-03-19 Paolo Bonzini * lightning/i386/asm-64.h: Add LEAQmr. 2008-03-19 Paolo Bonzini * lightning/i386/core-64.h: Misc bugfixes. 2008-03-19 Paolo Bonzini * lightning/i386/core-i386.c: Remove jit_ldr_i, jit_ldxr_i. * lightning/i386/core-32.h: Add jit_ldr_i, jit_ldxr_i. * lightning/i386/core-64.h: Add jit_ld{r,xr,i,xi}_{ui,l,ul}; move jit_ldr_i, jit_ldxr_i, jit_str_l, jit_stxr_l with others. 2008-03-19 Paolo Bonzini * lightning/asm-common.h: Add _s32P. 2008-03-19 Paolo Bonzini * lightning/i386/core-64.h: Implement long mul/div/mod. 2008-03-19 Paolo Bonzini * lightning/i386/asm-i386.h: Cast memory address to long for JCCim. 2008-03-15 Paolo Bonzini * lightning/asm-common.h: Add underscores around __unused__ attribute. 2008-03-15 Paolo Bonzini * lightning/ppc/core.h: Avoid some "value computed is not used" warnings. * lightnings/tests/allocai.c: Silence other warnings. 2008-03-14 Paolo Bonzini * lightningize.in: Fix some problems (not all). 2008-03-14 Paolo Bonzini * lightning/i386/core-32.h: Avoid some "value computed is not used" warnings; reported by Sam Steingold. 2008-03-08 Paolo Bonzini * lightning/i386/core-32.h: Fix stxr_c(_EAX, _EBX, _ESI). 2008-02-13 Paolo Bonzini * lightning/i386/asm-32.h: Avoid redefinition of _r1, reported by Sam Steingold. * lightning/i386/asm-64.h: Likewise. 2008-02-08 Paolo Bonzini * lightning/i386/asm-i386.h: Don't define _VOID, reported by Reini Urban. 2008-02-03 Paolo Bonzini * build-aux/lightning.m4: Add --with-lightning-prefix option, suggested by Sam Steingold. 2008-01-14 Paolo Bonzini * lightning/i386/core-64.h: Use CALLsr, not CALLLsr. 2008-01-13 Paolo Bonzini * lightning/i386/core-i386.h: Move jit_calli and jit_callr... * lightning/i386/core-32.h: ... here. * lightning/i386/core-64.h: Redefine them. 2008-01-05 Paolo Bonzini * lightning/i386/fp-32.h: Fix sub(a,0,a). * lightning/tests/3to2.c: Add new testcases. * lightning/tests/3to2.ok: Add new testcases. 2008-01-02 Paolo Bonzini * lightning/i386/fp-32.h: Fix sub(a,b,a) with a ~= JIT_FPR0. * lightning/tests/3to2.c: New. * lightning/tests/3to2.ok: New. 2007-11-07 Paolo Bonzini * opcode/Makefile.am: Fix AM_CPPFLAGS. 2007-08-12 Paolo Bonzini * lightning/i386/core-i386.h: Improve encoding of set* instructions. * lightning/i386/core-64.h: Fix jit_bra_l. * tests/sete.c: New. * tests/sete.ok: New. 2007-06-29 Paolo Bonzini * tests/bp.c: Upgrade to GPL/LGPLv3. * lightning/i386/asm-32.h: Upgrade to GPL/LGPLv3. * lightning/i386/asm-64.h: Upgrade to GPL/LGPLv3. * lightning/i386/core-32.h: Upgrade to GPL/LGPLv3. * lightning/i386/core-64.h: Upgrade to GPL/LGPLv3. * lightning/i386/fp-64.h: Upgrade to GPL/LGPLv3. * lightning/sparc/asm.h: Upgrade to GPL/LGPLv3. * lightning/sparc/core.h: Upgrade to GPL/LGPLv3. * lightning/sparc/fp.h: Upgrade to GPL/LGPLv3. * lightning/sparc/funcs.h: Upgrade to GPL/LGPLv3. * lightning/i386/asm-i386.h: Upgrade to GPL/LGPLv3. * lightning/i386/core-i386.h: Upgrade to GPL/LGPLv3. * lightning/i386/fp-32.h: Upgrade to GPL/LGPLv3. * lightning/i386/funcs.h: Upgrade to GPL/LGPLv3. * lightning/ppc/asm.h: Upgrade to GPL/LGPLv3. * lightning/ppc/core.h: Upgrade to GPL/LGPLv3. * lightning/ppc/fp.h: Upgrade to GPL/LGPLv3. * lightning/ppc/funcs.h: Upgrade to GPL/LGPLv3. * lightning.h: Upgrade to GPL/LGPLv3. * tests/add.c: Upgrade to GPL/LGPLv3. * tests/fib.c: Upgrade to GPL/LGPLv3. * tests/testfp.c: Upgrade to GPL/LGPLv3. * tests/fibdelay.c: Upgrade to GPL/LGPLv3. * tests/fibit.c: Upgrade to GPL/LGPLv3. * tests/funcfp.c: Upgrade to GPL/LGPLv3. * tests/incr.c: Upgrade to GPL/LGPLv3. * tests/printf.c: Upgrade to GPL/LGPLv3. * tests/printf2.c: Upgrade to GPL/LGPLv3. * tests/rpn.c: Upgrade to GPL/LGPLv3. * tests/rpnfp.c: Upgrade to GPL/LGPLv3. * lightning/asm-common.h: Upgrade to GPL/LGPLv3. * lightning/core-common.h: Upgrade to GPL/LGPLv3. * lightning/fp-common.h: Upgrade to GPL/LGPLv3. * lightning/funcs-common.h: Upgrade to GPL/LGPLv3. * opcode/dis-buf.c: Upgrade to GPL/LGPLv3. * opcode/disass.c: Upgrade to GPL/LGPLv3. * opcode/i386-dis.c: Upgrade to GPL/LGPLv3. * opcode/sparc-dis.c: Upgrade to GPL/LGPLv3. * opcode/sparc-opc.c: Upgrade to GPL/LGPLv3. * lightningize.in: Upgrade to GPL/LGPLv3. * opcode/bfd.h: Upgrade to GPL/LGPLv3. * opcode/i386.h: Upgrade to GPL/LGPLv3. * opcode/sparc.h: Upgrade to GPL/LGPLv3. 2007-01-26 Thomas Girard * lightning/Makefile.am: Add clean-local target. 2006-12-02 Paolo Bonzini * lightning/i386/asm-i386.h: Add CVTTS?2SIL. * lightning/i386/asm-64.h: Add CVTTS?2SIQ. * lightning/i386/fp-64.h: Use it. * lightning/Makefile.am: Place files in nodist_lightning_HEADERS. 2006-11-23 Paolo Bonzini * lightning/core-common.h: Add casts in "*i_p" variants. * lightning/i386/asm-32.h: Add _r1. * lightning/i386/asm-64.h: Likewise, and add SSE instructions. * lightning/i386/asm-i386.h: Merge SSE instructions from Gwenole. Use short form for 16-bit AX instructions. Remove _r1 * lightning/i386/core-64.h: Add FP ABI support in its infancy. * lightning/i386/core-i386.h: Move jit_arg_f and jit_arg_d... * lightning/i386/core-32.h: ... and jit_prepare_f and jit_prepare_d... * lightning/i386/fp-32.h: ... here. * lightning/i386/fp-64.h: Write the code. * lightning/sparc/fp.h: Fix jit_extr_{f_d,d_f} register order. 2006-11-22 Paolo Bonzini * lightning/i386/asm-i386.h: Move x86-64 instructions... * lightning/i386/asm-64.h: ... here. * lightning/i386/fp-32.h: Fix bugfixes worked around in froofyJIT. Add JIT_FPRET. * lightning/sparc/fp.h: Likewise. * lightning/ppc/fp.h: Likewise. * lightning/fp-common.h: Adjust for JIT_FPRET. * tests/funcfp.c: Adjust for JIT_FPRET. * tests/rpnfp.c: Adjust for JIT_FPRET. 2006-11-20 Paolo Bonzini * lightning/i386/asm-i386.h: Add an underscore to macros without a parameter. 2006-11-20 Paolo Bonzini * lightning/i386/core-i386.h: Move jit_movip, jit_check8, jit_reg8, jit_reg16, jit_movbrm... * lightning/i386/core-32.h: ... here. * lightning/i386/core-64.h: Redefine them. Fix other bugs. * tests/printf.c: Do not do a varargs call. 2006-11-20 Paolo Bonzini * lightning/i386/asm-i386.h: Check in rewrite from Basilisk II. * lightning/i386/asm-32.h: Adjust. * lightning/i386/asm-64.h: Adjust. * lightning/i386/fp-32.h: Adjust. * lightning/i386/core-32.h: Adjust. Add jit_{ld,ldx,st,stx}i*. * lightning/i386/core-64.h: Adjust. Add jit_{ld,ldx,st,stx}i*. * lightning/i386/core-i386.h: Adjust. Remove these patterns. 2006-11-20 Paolo Bonzini * lightning/i386/asm-i386.h: Merge 64-bit cleanliness changes from mzscheme. Add SSE. * lightning/i386/asm-64.h: Likewise. 2006-11-20 Paolo Bonzini Ludovic Courtes * lightning/i386/core-32.h: Disable jit_push and jit_pop if stack not needed. * lightning/i386/core-64.h: Disable jit_push and jit_pop if stack not needed. * lightning/sparc/core.h: Merge final implementation of jit_pushr and jit_popr. * lightning/ppc/core.h: Fix implementation of jit_pushr and jit_popr to work (more or less) across function calls. * tests/push-pop.c, tests/push-pop.ok: New test. * tests/Makefile.am: Run it. 2006-11-20 Paolo Bonzini * lightning/asm-common.h: Make 64-bit safe. * lightning/i386/funcs.h: Make 64-bit safe. * lightning/i386/asm-64.h: More merge from mzscheme. * lightning/i386/asm-i386.h: More merge from mzscheme. * lightning/i386/core-32.h: More merge from mzscheme. * lightning/i386/core-64.h: More merge from mzscheme. * lightning/i386/core-i386.h: More merge from mzscheme. * tests/rpnfp.c, tests/testfp.c, tests/funcfp.c: Skip if no floating-point support. 2006-11-04 Paolo Bonzini * tests/rpn.c: Remove pushr/popr. 2006-11-04 Paolo Bonzini * lightning/ppc/core.h: Implement jit_allocai, define JIT_FP to be R1. * lightning/ppc/funcs.h: Store frame size into _jitl. Store R1 before the STMW, so that the offset is unchanged when we patch the STMW. * lightning/i386/core.h: Define JIT_FP to be EBP. * lightning/i386/core-32.h: Implement jit_allocai, put LEAVE in the epilog if jit_allocai was used. * lightning/i386/core-64.h: Implement jit_allocai, put LEAVE in the epilog if jit_allocai was used. 2006-11-04 Ludovic Courtes * lightning/sparc/core.h: Implement jit_allocai. * tests/allocai.c: New. * tests/Makefile.am: Point to new tests. 2006-11-03 Paolo Bonzini * lightning/ppc/core.h: Fix jit_bms using BNE rather than BGT. "AND." does signed comparisons. 2006-10-31 Paolo Bonzini * doc/porting.texi: Rename JIT_FP to JIT_AP. * lightning/core-common.h: Likewise. * lightning/i386/core-i386.h: Likewise. * lightning/fp-common.h: Provide default versions of jit_getarg_[fd]. * lightning/i386/fp-32.h: Don't provide jit_getarg_[fd]. * lightning/ppc/fp.h: Likewise. 2006-10-31 Ludovic Courtes * doc/using.texi (The instruction set): Clarified the use of `JIT_RET' and documented `jit_retval'. * tests/ret.c (generate_function_proxy): After `jit_finish', use `jit_retval_i' to move FUNC's return value into the correct register. 2006-10-31 Paolo Bonzini Ludovic Courtes * tests/divi.c, tests/divi.ok, tests/movi.c, tests/movi.ok: New. * tests/ldxi.c: Ensure large pointer is generated. * tests/Makefile.am: Point to new tests. * lightning.h: Include funcs-common.h before funcs.h. * lightning/sparc/core.h: Fix bugs in modi/divi. 2006-10-30 Paolo Bonzini * lightning/Makefile.am: Use "ln -sf". * lightning/core-common.h: Define jit_negr_l if necessary. 2006-10-30 Paolo Bonzini * lightning/i386/asm.h (MOVS*, MOVZ*): Use correct _r[124] macros. 2006-10-29 Paolo Bonzini * configure.ac: Use lightning.m4 macros. * lightning.m4: Refactor to use common code in configure.ac. Move... * build-aux/lightning.m4: ... here. * lightningize.in: Support suffixes. * opcode/disass.in: Adapt to changes in configure.ac. * lightning/ppc/funcs.h: Use __APPLE__ instead of _CALL_DARWIN. * lightning/i386/core-32.h: Likewise. 2006-10-26 Paolo Bonzini * configure.ac: Fix compilation test. * lightning/Makefile.am: Symlink LIGHTNING_TARGET_FILES in non-distribution mode. * lightning/i386/Makefile.frag: Use LIGHTNING_TARGET_FILES. 2006-10-26 Paolo Bonzini * configure.ac: Subst cpu. * lightning/core-common.h: Make tests pass on i386. * lightning/i386/asm-32.h: Make tests pass on i386. * lightning/i386/asm-64.h: Make tests pass on i386. * lightning/i386/asm-i386.h: Make tests pass on i386. * lightning/i386/core-32.h: Make tests pass on i386. * lightning/i386/core-64.h: Make tests pass on i386. * lightning/i386/core-i386.h: Make tests pass on i386. * tests/Makefile.am: Include files from cpu directory. 2006-10-26 Paolo Bonzini * lightning/i386/asm.h: Move to asm-i386.h * lightning/i386/asm-32.h: New, from Matthew Flatt. * lightning/i386/asm-64.h: New, from Matthew Flatt. * lightning/i386/core.h: Move to core-i386.h * lightning/i386/core-32.h: New, from Matthew Flatt. * lightning/i386/core-64.h: New, from Matthew Flatt. * lightning/i386/fp.h: Move to fp-32.h * lightning/i386/fp-64.h: New, dummy. * lightning/i386/Makefile.frag: New. * lightning/Makefile.am: Support per-target Makefile fragments. * configure.ac: Support per-target Makefile fragments and CPU suffixes. 2006-10-16 Paolo Bonzini * lightning/i386/i386.h (jit_flush_code): Fix syntax error. :-( 2006-07-06 Paolo Bonzini Ludovic Courtes * doc/using.texi: Clarify "Using autoconf" section and rename it to "Bundling lightning" * lightning.m4: Work also if lightning is not bundled. 2006-07-06 Paolo Bonzini Ludovic Courtes * lightning/ppc/core.h (_jit_mod): Replace with... (_jit_mod_big, _jit_mod_small): ... these. (jit_modi_i, jit_modi_ui): Rewrite. * tests/modi.c, tests/modi.ok: New tests. 2006-05-18 Matthew Flatt * lightning/i386/asm.h: Fix test for extending the mprotect area towards lower addresses. 2006-05-16 Bruno Haible * lightning/asm-common.h: Don't use __func__ nor __FUNCTION__ if not compiling with GNU C. 2006-02-16 Paolo Bonzini * lightning/ppc/core.h: Fix jit_ldxi_* with big displacement. 2006-01-23 Paolo Bonzini * configure.ac: Fix comments in config.h.in. 2005-11-25 Paolo Bonzini * lightning/sparc/fp.h: Fix header comment. * lightning/ppc/fp.h: Fix header comment. 2005-04-27 Paolo Bonzini * lightning/i386/asm.h (JCm, JCSm, JNCm, JNCSm): New. 2004-11-26 Paolo Bonzini * lightning/ppc/funcs.h (_jit_epilog): Remove unused variable. 2004-11-13 Paolo Bonzini * lightning/i386/funcs.h [__linux__]: Include sys/mman.h. 2004-11-09 Paolo Bonzini * lightning/sparc/fp.h: Fix fp-to-integer conversions. * lightning/ppc/testfp.c: Test fp-to-integer conversions of integer numbers. * lightning/ppc/testfp.ok: Adjust for the above. 2004-11-08 Paolo Bonzini * lightning/ppc/testfp.c: Always flush code before testing it. 2004-11-08 Paolo Bonzini * lightning/ppc/fp.h: Do not clobber f31. 2004-11-08 Paolo Bonzini * lightning.h: New name of... * lightning-inst.h: ... this file. * lightning.h.in: Removed. * opcodes/disass.c: Include config.h. * tests/add.c: Include config.h. * tests/bp.c: Include config.h. * tests/fib.c: Include config.h. * tests/fibdelay.c: Include config.h. * tests/fibit.c: Include config.h. * tests/funcfp.c: Include config.h. * tests/incr.c: Include config.h. * tests/printf.c: Include config.h. * tests/printf2.c: Include config.h. * tests/rpn.c: Include config.h. * tests/rpnfp.c: Include config.h. * tests/testfp.c: Include config.h. 2004-10-12 Paolo Bonzini * lightning/i386/fp.h: Fix bugs in conditional branches. 2004-10-10 Paolo Bonzini * lightning/i386/funcs.h: Fix pasto in jit_flush_code. 2004-10-08 Paolo Bonzini * lightning/ppc/fp.h: Optimized conditional branches. 2004-09-20 Paolo Bonzini * lightning/ppc/asm.h: Fix more typos. 2004-09-20 Paolo Bonzini * lightning/ppc/asm.h: Fix typos, replace `26' with JIT_AUX. 2004-09-20 Paolo Bonzini * lightning/ppc/fp.h: Added conditional branches. 2004-09-18 Laurent Michel * lightning/ppc/fp.h (jit_unler_d, jit_unltr_d, jit_unger_d, jit_ungtr_d, jit_ltgt_d, jit_uneq_d): Implemented missing tests to fully support testfp. (jit_floorr_d_i, jit_ceilr_d_i, jit_roundr_d_i, jit_truncr_d_i): New macros. * lightning/ppc/asm.h: Added missing opcodes FCTIWZ and MTFSFI. * lightning/ppc/funcs.h (_jit_prolog): Fixed minor mistake in the initialization of _jitl.nextarg_geti, relying on the JIT_AUX macro as well to get the register offset. 2004-09-07 Paolo Bonzini * lightning/ppc/funcs.h: Fix typo. 2004-09-06 Paolo Bonzini * tests/funcfp.c: Use %g. Remove C99 variable declarations. * tests/testfp.c: Don't use __builtin_nan. * lightning/ppc/core.h: Add three V registers. * lightning/ppc/funcs.h: Adjust. * lightning/sparc/core.h: Some fixes related to FP argument passing. Move R0 to %g2, use %o7 for JIT_BIG2. * lightning/sparc/fp.h: Some fixes related to FP argument passing. 2004-09-02 Paolo Bonzini * lightning/sparc/core.h: Add another V register, move R0 to %o7. 2004-07-15 Paolo Bonzini * lightning/i386/funcs.h: Implement jit_flush_code, in order to support Fedora's exec-shield. 2004-07-14 Paolo Bonzini * lightning/core-common.h: Add more jit_extr_*_* macros. * lightning/doc/using.texi: Be clearer about the order of arguments in jit_extr_*_*. * lightning/doc/porting.texi: Add more jit_extr_*_* macros. * lightning/i386/fp.h: Fix typo in jit_extr_i_d. 2004-07-14 Paolo Bonzini * lightning/ppc/funcs.h: Adjust offset of LR into stack frame if running under the Darwin ABI. 2004-07-13 Paolo Bonzini * lightning/i386/fp.h: Rename jit_exti_d to jit_extr_i_d. 2004-07-13 Paolo Bonzini * lightning/ppc/core.h: Fix thinko. * lightning/i386/core.h: Fix jit_lti_ui. * lightning/core-common.h: Add missing macros. * lightning/ppc/fp.h: Rename jit_neg_* to jit_negr_*. * lightning/i386/fp.h: Rename jit_neg_* to jit_negr_*. * lightning/sparc/fp.h: Rename jit_neg_* to jit_negr_*. * lightning/fp-common.h: Rename jit_neg_* to jit_negr_*. * doc/porting.texi: Add undocumented macros. 2004-07-12 Paolo Bonzini * doc/porting.texi: Add missing macros. 2004-07-12 Paolo Bonzini * lightning/ppc/funcs.h: Don't generate trampolines. Separate prolog and epilog generation. * lightning/ppc/core.h: Generate epilog explicitly. Don't reserve r31 anymore. * lightning/core-common.h: Remove call to jit_setup_code. 2004-07-09 Paolo Bonzini * lightning/lightning.h.in: Avoid preprocessor warnings. * lightning/lightning-inst.h: Likewise. * lightning/i386/core.h: Define JIT_R, JIT_R_NUM, JIT_V, JIT_V_NUM. * lightning/ppc/core.h: Likewise. * lightning/sparc/core.h: Likewise. * lightning/i386/fp.h: Define JIT_FPR, JIT_FPR_NUM. * lightning/ppc/fp.h: Likewise. * lightning/sparc/fp.h: Likewise. * lightning/core-common.h: Define fixed register names. * lightning/fp-common.h: Likewise for FP regs. 2004-07-09 Paolo Bonzini * lightning/ppc/funcs.h: Fix location where return address is stored. * lightning/i386/asm.h: Add a trailing _ to opcodes without any parameter. * lightning/i386/core.h: Adjust for the above. 2004-04-15 Paolo Bonzini * lightning/i386/fp.h: Change "and" to "_and" to satisfy C++ compilers. 2004-04-14 Paolo Bonzini * lightning/sparc/fp.h: Use memcpy to implement jit_movi. * lightning/ppc/fp.h: Use memcpy to implement jit_movi. Move floating-point opcodes... * lightning/ppc/asm.h: ... here. 2004-04-14 Paolo Bonzini * lightning/core-common.h: Add jit_finishr. * lightning/ppc/core.h: Add jit_callr and jit_finishr. * lightning/i386/core.h: Add jit_callr. * lightning/sparc/core.h: Add jit_callr. Fix typo. 2004-04-14 Paolo Bonzini * lightning/i386/core.h: Fix pasto in jit_b*_ui. 2004-03-30 Laurent Michel * lightning/ppc: Implement PowerPC floating point (ChangeLog entry missing). 2004-03-12 Paolo Bonzini * lightning/fp-common.h: Load/store macros are not the same for floats and doubles anywhere, but jit_retval may be. * lightning/i386/asm.h: Fix = mistaken for == in ESCrri. * lightning/i386/core.h: Fix typo in jit_prepare_[fd]. * lightning/i386/fp.h: Rewritten. * tests/testfp.c: Add tests for unordered comparisons. * tests/testfp.ok: Add results. 2004-03-15 Paolo Bonzini Merge changes from Laurent Michel. * lightning/asm-common.h: Add _jit_I_noinc. * lightning/core-common.h: Support jit_init, jit_setup_code, jit_patch_at. Return patchable IP from jit_movi_p. * lightning/funcs-common.h: Provide defaults for jit_setup_code, jit_start_pfx, jit_end_pfx * lightning/i386/core.h: Add jit_patch_at, jit_patch_movi. * lightning/ppc/core.h: Likewise. * lightning/sparc/core.h: Likewise. * lightning/ppc/asm.h: Fix generation of branch destination displacements in _FB and _BB * lightning/ppc/core.h: Generate trampolines in the user area. * lightning/ppc/funcs.h: Add a few casts. * tests/bc.c: New testcase. * lightning/i386/asm.h: Wrap into #ifndef LIGHTNING_DEBUG. * lightning/ppc/asm.h: Wrap into #ifndef LIGHTNING_DEBUG. * lightning/sparc/asm.h: Wrap into #ifndef LIGHTNING_DEBUG. 2004-03-09 Paolo Bonzini * lightning/sparc/fp.h: Rewrite. Move macros for FP code generation... * lightning/sparc/asm.h: ... here. * lightning/sparc/core.h: Rename jit_prepare to jit_prepare_i, jit_retval to jit_retval_i. * lightning/ppc/core.h: Rename jit_prepare to jit_prepare_i, jit_retval to jit_retval_i. * lightning/i386/core.h: Rename jit_prepare to jit_prepare_i, jit_retval to jit_retval_i. * lightning/core-common.h: Provide backwards compatible synonyms for the above. * lightning/fp-common.h: Rewrite. * lightning-inst.h: Include fp unconditionally. * lightning.h.in: Include fp unconditionally. * tests/Makefile.am: Enable fp tests. * tests/fib.c: Use jit_retval_i. * tests/fibit.c: Cast codeBuffer to char *. * tests/funcfp.c: Use new fp macros. * tests/printf.c: Use jit_retval_i. * tests/rpnfp.c: Use new fp macros. * tests/testfp.c: Use new fp macros. 2004-03-02 Paolo Bonzini * lightning/i386/core.h: generate correct code when doing lt/le/ge/etc. on ESI and EDI. Use MOVZX/MOVSX where possible. * lightning/i386/asm.h: Add macros for MOVZX/MOVSX. Move macros for x87 here, and add many of them. * lightning/i386/fp.h: Use new macros for x87. 2004-02-06 Paolo Bonzini * lightning/i386/core.h: avoid generating MOV reg, reg. * lightning/sparc/core.h: fix several bugs. * lightning/ppc/core.h: fix several bugs. * tests/rpn.c: rewritten. 2004-01-08 Paolo Bonzini * tests/rpnfp.c: new example, suggested by Basile Starynkevitch. * tests/rpnfp.ok: new example. 2003-12-12 Paolo Bonzini * tests/add.c: new test, suggested by Steve Dekorte. * tests/add.c: new test. 2003-11-14 Paolo Bonzini John Redford * lightning/asm-common.h: change the 'pc' field of _jit to be a union of various data types, because ISO C99 doesn't permit using ++ on a = cast. Change the incremented casts of _jit.pc to be _jit.x.uc_pc, _jit.x.us_pc, etc. * all files: change all non-cast instances of _jit.pc to be _jit.x.pc. * lightning/i386/core.h: remove casts from jit_might. 2003-05-25 Paolo Bonzini * lightning/i386/core.h: use JITSORRY in jit_replace * lightning/asm-common.h: define JITSORRY 2003-05-14 Paolo Bonzini * lightning/i386/core.h: fix missing comma in several load/store macros. * lightning/core-common.h: fix long/unsigned long/pointer jit_pushr/jit_popr. * lightning/ppc/funcs.h: correctly align stack pointer No changelogs for the assemblers (lightning directory) until 1.0 2003-03-27 Paolo Bonzini * tests/printf2.c: new test 2001-05-03 Paolo Bonzini * tests/printf.c: made the message platform independent 2001-01-19 Paolo Bonzini * configure.in: support cross-assembling * disass/bfd.h, disass/dis-asm.h, disass/dis-buf.c, disass/i386-dis.c, disass/i386.h, disass/ppc-dis.c, disass/ppc.h, disass/ppc-opc.c, disass/sparc-dis.c, disass/sparc.h, disass/sparc-opc.c: new files, from GDB * disass/disass.c, disass/Makefile.am: new files * tests/fib.c, tests/fibit.c, tests/incr.c, tests/printf.c, tests/rpn.c, tests/testfp.c, tests/Makefile.am: support disassembling