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Diffstat (limited to 'gcc/ChangeLog')
| -rw-r--r-- | gcc/ChangeLog | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 513e54d05b5..c6a244963b3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,142 @@ 2008-08-09 Richard Sandiford <rdsandiford@googlemail.com> + * config.gcc (mips*-*-linux*, mips64*-*-linux*): Add + mips/t-libgcc-mips16 to tmake_file. + * config/mips/mips-protos.h (mips_call_type): New enum. + (mips_pic_base_register, mips_got_load): Declare. + (mips_restore_gp): Take an rtx argument. + (mips_use_pic_fn_addr_reg_p): Declare. + (mips_expand_call): Replace the sibcall_p argument with + a mips_call_type argument. Add a lazy_p parameter. + (mips_split_call): Declare. + * config/mips/mips.h (MIPS16_PIC_TEMP_REGNUM): New macro. + (MIPS16_PIC_TEMP): Likewise. + (reg_class): Delete M16_NA_REGS. + (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly. + (SYMBOL_FLAG_BIND_NOW, SYMBOL_REF_BIND_NOW_P): New macros. + (mips_split_hi_p): Declare. + * config/mips/mips.c (mips_split_hi_p): New array. + (mips_regno_to_class): Change M16_NA_REGS entries to M16_REGS. + (mips_got_symbol_type_p): New function. + (mips_global_symbol_p): Check SYMBOL_REF_EXTERNAL_P. + (mips16_stub_function_p): New function. + (mips16_local_function_p): Likewise. + (mips_use_pic_fn_addr_reg_p): Likewise. + (mips_cannot_force_const_mem): Return false for HIGHs. + Extend CONST_INT and symbolic handling to MIPS16, using + mips_symbol_insns to check that the base symbol type is a + legitimate constant. Reject GOT-based constants if + TARGET_MIPS16_PCREL_LOADS. + (mips_const_insns): Check targetm.cannot_force_const_mem when + decomposing a symbolic base and a large offset. + (mips_emit_call_insn): Add ORIG_ADDR and ADDR parameters. + When calling a function that needs $25 from MIPS16 code, + move the target address into $25 separately and add a USE + to the call insn. + (mips16_gp_pseudo_reg): Insert the initializer immediately + before the first real insn. + (mips_pic_base_register, mips_got_load): New functions. + (mips_split_symbol): Generalize the name of the LO_SUM_OUT + parameter to LOW_OUT. Say that it can be any valid SET_SRC + when splitting a load-address operation. Split SYMBOL_GOT_DISP + constants and highs of SYMBOL_GOT_PAGE_OFST constants. + (mips_call_tls_get_addr): Update the call to mips_expand_call, + also passing NULL_RTX rather than const0_rtx as the aux argument. + (mips_rewrite_small_data_p): Check mips_lo_relocs and mips_split_p + instead of TARGET_EXPLICIT_RELOCS. + (mips_ok_for_lazy_binding_p): Check SYMBOL_REF_BIND_NOW_P. + (mips_load_call_address): Replace the sibcall_p argument with + a mips_call_type argument. Use mips_got_load. + (mips16_local_alias): New structure. + (mips16_local_aliases): New variable. + (mips16_local_aliases_hash): New function. + (mips16_local_aliases_eq): Likewise. + (mips16_local_alias): Likewise. + (mips16_stub_function): Likewise. + (mips16_build_function_stub): Create a local alias for the target + function. Handle TARGET_ABICALLS. For PIC abicalls, emit a + .cpload directive and an R_MIPS_NONE relocation for the target + function, then load the alias rather than the function itself. + Wrap the non-PIC abicalls version in ".option pic0/.option pic2". + (mips16_copy_fpr_return_value): Use mips16_stub_function and + mips_expand_call. Set SYMBOL_REF_BIND_NOW on the symbol. + (mips16_build_call_stub): Replace the FN parameter with an + FN_PTR parameter. Force the address into a register if it + isn't a call_insn_operand; don't rely on the caller to do this. + If a call to a locally-defined and locally-binding MIPS16 + function must be made indirectly, redirect the call to the + function's local alias. Use mips16_stub_function_p, + mips16_stub_function, mips_expand_call and use_reg. + Set SYMBOL_FLAG_BIND_NOW on __mips_call_* symbols. + Use explicit %hi and %lo accesses where possible. + Use MIPS_CALL to generate the correct code form of a + jal instruction. Add clobbers of $18 instead of uses. + Update the call to mips_emit_call_insn. + (mips_expand_call): Replace the SIBCALL_P argument with a + mips_call_type argument and handle the new MIPS_CALL_EPILOGUE value. + Take a LAZY_P parameter. Call mips16_build_call_stub first, + allowing it to modify the call address. Update the calls to + mips_load_call_address and mips_emit_call_insn. + (mips_split_call): New function. + (mips_init_relocs): Clear mips_split_hi_p. Only use %gp_rel if + !TARGET_MIPS16. Split SYMBOL_GOT_DISP, and the high parts of + SYMBOL_GOT_PAGE_OFST, for MIPS16 code. + (mips_global_pointer): Check mips16_cfun_returns_in_fpr_p. + (mips_extra_live_on_entry): Include MIPS16_PIC_TEMP_REGNUM + if TARGET_MIPS16. + (mips_cprestore_slot): New function. + (mips_restore_gp): Take a TEMP parameter. Handle TARGET_MIPS16 + and use mips_cprestore_slot. + (mips_output_function_prologue): Handle TARGET_MIPS16 for + LOADGP_OLDABI. + (mips_emit_loadgp): Move into MIPS16_PIC_TEMP for MIPS16, + then use a copygp_mips16 instruction to set up $28. + (mips_expand_prologue): Initialize the cprestore slot for MIPS16 too. + (mips16_lay_out_constants): Call split_all_insns_noflow. + (mips_reorg_process_insns): Explicitly set all_noreorder_p to + false if TARGET_MIPS16. + (mips_reorg): Don't call vr4130_align_insns if TARGET_MIPS16. + (mips_output_mi_thunk): Use mips_got_symbol_type_p. Use the + mips_dangerous_for_la25_p approach for MIPS16 PIC calls too. + (mips_set_mips16_mode): Always set MASK_EXPLICIT_RELOCS for + MIPS16 code. Allow MIPS16 o32 PIC. + (mips_override_options): Allow MIPS16 o32 PIC. + * config/mips/mips.md: Lower CONST_GP_P moves into register moves + after reload if TARGET_USE_GOT. + (UNSPEC_COPYGP): New constant. + (length): Use a default length of 8 for MIPS16 GOT loads. + (*got_disp<mode>): Check mips_split_p instead of TARGET_XGOT. + (*got_page<mode>): Check mips_split_hi_p. + (*got_disp<mode>, *got_page<mode>): Use mips_got_load. + (unspec_got<mode>, unspec_call<mode>): New expanders. + (load_got<mode>, load_call<mode>): Remove the length attributes. + Use a got attribute instead of a type attribute. + (copygp_mips16): New insn. + (restore_gp): Add a scratch clobber and pass it to mips_restore_gp. + (load_call<mode>): Use a "d" constraint instead of an "r" constraint. + (sibcall, sibcall_value, call, call_value): Update the calls + to mips_expand_call. + (call_internal, call_value_internal): Use mips_split_call. + (call_value_multiple_internal): Likewise. + (call_split): Move after call_internal (the insn it is split from). + (call_internal_direct, call_value_internal_direct): Turn into + define_insn_and_splits. Split if TARGET_SPLIT_CALLS. + (call_direct_split, call_value_direct_split): New patterns. + * config/mips/constraints.md (c): Handle TARGET_MIPS16 first + and use M16_REGS instead of M16_NA_REGS. + * config/mips/predicates.md (const_call_insn_operand): Replace + the TARGET_ABSOLUTE_ABICALLS-based check with a more general + mips_use_pic_fn_addr_reg_p check. + (move_operand): Reject HIGHs if mips_split_hi_p. + * config/mips/mips16.S: Assembly as empty if the ABI is not suitable. + (__mips16_floatunsisf): Inline __mips16_floatsisf. + (CALL_STUB_NO_RET, CALL_STUB_REG): Copy the target register to $25. + * config/mips/libgcc-mips16.ver: New file. + * config/mips/t-libgcc-mips16 (SHLIB_MAPFILES): Add + $(srcdir)/config/mips/libgcc-mips16.ver. + +2008-08-09 Richard Sandiford <rdsandiford@googlemail.com> + * config/mips/mips.c (mips_unspec_address_offset): Move earlier in file. (mips_unspec_address, mips_unspec_offset_high): Likewise. (mips_ok_for_lazy_binding_p, mips_load_call_address): Likewise. |