2009-09-30 Basile Starynkevitch <basile@starynkevitch.net>

	[merged with trunk while LTO is merging inside trunk, however the
	trunk's gengtype should now work for MELT, unchanged except by
	addition of "melt-runtime.h"]
	MELT branch merged with trunk rev 152324

--This line, and those below, will be ignored-
-

_M   .
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M    Makefile.in
M    libgomp/configure
M    libgomp/ChangeLog
M    libgomp/acinclude.m4
M    config.guess
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M    gcc/doc/plugins.texi
M    gcc/doc/extend.texi
M    gcc/doc/tm.texi
M    gcc/doc/invoke.texi
M    gcc/doc/gty.texi
M    gcc/doc/install.texi
M    gcc/tree-into-ssa.c
M    gcc/targhooks.c
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M    gcc/targhooks.h
M    gcc/gengtype.c
M    gcc/java/builtins.c
M    gcc/java/ChangeLog
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M    gcc/optabs.c
M    gcc/optabs.h
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M    gcc/builtins.c
M    gcc/final.c
M    gcc/fold-const.c
M    gcc/cfgloopanal.c
M    gcc/toplev.c
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A  + gcc/testsuite/gcc.c-torture/execute/pr41463.c
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A  + gcc/testsuite/gcc.c-torture/execute/ifcvt-onecmpl-abs-1.c
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A  + gcc/testsuite/gcc.target/i386/fma4-maccXX.c
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A  + gcc/testsuite/gcc.target/i386/fma4-check.h
A  + gcc/testsuite/gcc.target/i386/fma4-msubXX.c
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A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-this.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-capture-const-ref-neg.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-copy.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ref.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-std-function.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ctor-neg.C
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A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-deduce-ext-neg2.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-in-class-neg.C
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A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-deduce-ext.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-ns-scope.C
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A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-use.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-eh.C
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A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-capture-const-ref.C
A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-copy-default-neg.C
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A  + gcc/testsuite/g++.dg/cpp0x/lambda/lambda-array.C
_M   gcc/testsuite/g++.dg/cpp0x/decltype-38655.C
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A  + gcc/testsuite/gfortran.dg/block_4.f08
A  + gcc/testsuite/gfortran.dg/round_1.f03
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A  + gcc/testsuite/gfortran.dg/block_3.f90
A  + gcc/testsuite/gfortran.dg/block_7.f08
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M    gcc/c-opts.c
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M    gcc/passes.c
M    gcc/c-parser.c
M    gcc/config/alpha/vms.h
M    gcc/config/alpha/alpha.c
M    gcc/config/alpha/alpha.h
M    gcc/config/alpha/openbsd.h
M    gcc/config/alpha/alpha.md
M    gcc/config/frv/frv.h
M    gcc/config/frv/frv-protos.h
M    gcc/config/frv/frv.c
M    gcc/config/s390/s390.c
M    gcc/config/s390/s390.h
M    gcc/config/s390/s390-protos.h
M    gcc/config/m32c/m32c.c
M    gcc/config/m32c/m32c.h
M    gcc/config/m32c/m32c-protos.h
M    gcc/config/spu/spu-protos.h
M    gcc/config/spu/spu.c
M    gcc/config/spu/spu.h
M    gcc/config/sparc/sparc.md
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M    gcc/config/sparc/sparc.c
M    gcc/config/sparc/sparc.h
M    gcc/config/mep/mep-protos.h
M    gcc/config/mep/mep.c
M    gcc/config/mep/mep.h
M    gcc/config/m32r/m32r.c
M    gcc/config/m32r/m32r.h
A  + gcc/config/openbsd-stdint.h
M    gcc/config/i386/i386.h
M    gcc/config/i386/cygming.h
M    gcc/config/i386/cygwin.h
M    gcc/config/i386/i386.md
M    gcc/config/i386/smmintrin.h
M    gcc/config/i386/cpuid.h
M    gcc/config/i386/x86intrin.h
M    gcc/config/i386/sse.md
M    gcc/config/i386/i386-c.c
M    gcc/config/i386/i386.opt
A  + gcc/config/i386/fma4intrin.h
M    gcc/config/i386/openbsdelf.h
D    gcc/config/i386/mmintrin-common.h
M    gcc/config/i386/mingw32.h
M    gcc/config/i386/i386-protos.h
M    gcc/config/i386/i386.c
D    gcc/config/sh/symbian.c
M    gcc/config/sh/sh-protos.h
A  + gcc/config/sh/symbian-base.c
A  + gcc/config/sh/symbian-cxx.c
M    gcc/config/sh/symbian-post.h
M    gcc/config/sh/sh.c
A  + gcc/config/sh/sh-symbian.h
M    gcc/config/sh/sh.h
A  + gcc/config/sh/symbian-c.c
M    gcc/config/sh/t-symbian
M    gcc/config/pdp11/pdp11.c
M    gcc/config/pdp11/pdp11.h
M    gcc/config/avr/avr.c
M    gcc/config/avr/avr.h
M    gcc/config/crx/crx.h
M    gcc/config/xtensa/xtensa.c
M    gcc/config/xtensa/xtensa.h
M    gcc/config/xtensa/xtensa-protos.h
M    gcc/config/stormy16/stormy16.c
M    gcc/config/stormy16/stormy16.h
M    gcc/config/fr30/fr30.h
M    gcc/config/fr30/fr30.c
M    gcc/config/moxie/moxie.c
M    gcc/config/moxie/moxie.h
M    gcc/config/m68hc11/m68hc11-protos.h
M    gcc/config/m68hc11/m68hc11.c
M    gcc/config/m68hc11/m68hc11.h
A  + gcc/config/openbsd-libpthread.h
M    gcc/config/cris/cris.c
M    gcc/config/cris/cris.h
M    gcc/config/netbsd.h
M    gcc/config/iq2000/iq2000.h
M    gcc/config/iq2000/iq2000.c
M    gcc/config/mn10300/mn10300.c
M    gcc/config/mn10300/mn10300.h
M    gcc/config/ia64/predicates.md
M    gcc/config/ia64/ia64.c
M    gcc/config/ia64/ia64.h
M    gcc/config/ia64/ia64.md
M    gcc/config/ia64/ia64-protos.h
M    gcc/config/m68k/openbsd.h
M    gcc/config/m68k/m68k.c
M    gcc/config/m68k/netbsd-elf.h
M    gcc/config/m68k/m68k.h
M    gcc/config/rs6000/predicates.md
M    gcc/config/rs6000/rs6000-protos.h
M    gcc/config/rs6000/rs6000.c
M    gcc/config/rs6000/vsx.md
M    gcc/config/rs6000/rs6000.h
M    gcc/config/rs6000/rs6000.md
M    gcc/config/picochip/picochip.c
M    gcc/config/picochip/picochip.h
M    gcc/config/picochip/picochip-protos.h
M    gcc/config/arc/arc.c
M    gcc/config/arc/arc.h
M    gcc/config/mcore/mcore.c
M    gcc/config/mcore/mcore.h
M    gcc/config/darwin.c
M    gcc/config/darwin.h
M    gcc/config/score/score3.c
M    gcc/config/score/score7.c
M    gcc/config/score/score3.h
M    gcc/config/score/score-protos.h
M    gcc/config/score/score7.h
M    gcc/config/score/score.c
M    gcc/config/score/score.h
M    gcc/config/arm/arm.c
M    gcc/config/arm/arm.h
M    gcc/config/pa/pa-protos.h
M    gcc/config/pa/pa.c
M    gcc/config/pa/pa.h
M    gcc/config/mips/openbsd.h
M    gcc/config/mips/mips.c
M    gcc/config/mips/mips.h
M    gcc/config/t-freebsd
M    gcc/config/openbsd.h
M    gcc/config/freebsd-spec.h
M    gcc/config/vax/vax.c
M    gcc/config/vax/openbsd.h
M    gcc/config/vax/vax.h
M    gcc/config/h8300/h8300.c
M    gcc/config/h8300/h8300.h
M    gcc/config/v850/v850.c
M    gcc/config/v850/v850.h
M    gcc/config/mmix/mmix.h
M    gcc/config/mmix/mmix-protos.h
M    gcc/config/mmix/mmix.c
M    gcc/config/bfin/bfin-protos.h
M    gcc/config/bfin/bfin.c
M    gcc/config/bfin/bfin.h
M    gcc/stmt.c
M    gcc/collect2.c
M    gcc/langhooks-def.h
M    gcc/reload1.c
M    config.sub
M    libstdc++-v3/configure
M    libstdc++-v3/doc/xml/manual/intro.xml
M    libstdc++-v3/doc/html/ext/lwg-closed.html
M    libstdc++-v3/doc/html/ext/lwg-active.html
M    libstdc++-v3/doc/html/ext/lwg-defects.html
M    libstdc++-v3/include/parallel/multiway_merge.h
M    libstdc++-v3/include/parallel/find_selectors.h
M    libstdc++-v3/include/parallel/losertree.h
M    libstdc++-v3/include/parallel/list_partition.h
M    libstdc++-v3/include/parallel/for_each.h
M    libstdc++-v3/include/parallel/multiseq_selection.h
M    libstdc++-v3/include/parallel/workstealing.h
M    libstdc++-v3/include/parallel/base.h
M    libstdc++-v3/include/parallel/par_loop.h
M    libstdc++-v3/include/parallel/numeric
M    libstdc++-v3/include/parallel/equally_split.h
M    libstdc++-v3/include/parallel/for_each_selectors.h
M    libstdc++-v3/include/parallel/omp_loop_static.h
M    libstdc++-v3/include/parallel/random_shuffle.h
M    libstdc++-v3/include/parallel/merge.h
M    libstdc++-v3/include/parallel/multiway_mergesort.h
M    libstdc++-v3/include/parallel/numericfwd.h
M    libstdc++-v3/include/parallel/search.h
M    libstdc++-v3/include/parallel/partition.h
M    libstdc++-v3/include/parallel/algobase.h
M    libstdc++-v3/include/parallel/find.h
M    libstdc++-v3/include/parallel/algo.h
M    libstdc++-v3/include/parallel/omp_loop.h
M    libstdc++-v3/include/parallel/checkers.h
M    libstdc++-v3/include/parallel/sort.h
M    libstdc++-v3/include/bits/random.tcc
M    libstdc++-v3/include/tr1/random.tcc
M    libstdc++-v3/libsupc++/eh_terminate.cc
M    libstdc++-v3/libsupc++/vec.cc
M    libstdc++-v3/libsupc++/vterminate.cc
M    libstdc++-v3/libsupc++/new_opnt.cc
M    libstdc++-v3/ChangeLog
_M   libstdc++-v3/testsuite/27_io/basic_ofstream/cons/char/1.cc
_M   libstdc++-v3/testsuite/27_io/basic_ofstream/pthread2.cc
_M   libstdc++-v3/testsuite/27_io/basic_fstream/open/char/1.cc
_M   libstdc++-v3/testsuite/27_io/basic_fstream/cons/1.cc
_M   libstdc++-v3/testsuite/27_io/basic_ostringstream/pthread3.cc
_M   libstdc++-v3/testsuite/18_support/pthread_guard.cc
_M   libstdc++-v3/testsuite/21_strings/basic_string/pthread18185.cc
_M   libstdc++-v3/testsuite/21_strings/basic_string/pthread4.cc
_M   libstdc++-v3/testsuite/30_threads/condition_variable/members
_M   libstdc++-v3/testsuite/30_threads/this_thread
_M   libstdc++-v3/testsuite/30_threads/thread/members
_M   libstdc++-v3/testsuite/30_threads/thread/swap
A  + libstdc++-v3/testsuite/26_numerics/random/subtract_with_carry_engine/requirements/constants.cc
A  + libstdc++-v3/testsuite/26_numerics/random/mersenne_twister_engine/requirements/constants.cc
A  + libstdc++-v3/testsuite/26_numerics/random/linear_congruential_engine/requirements/constants.cc
A  + libstdc++-v3/testsuite/26_numerics/random/shuffle_order_engine/requirements/constants.cc
_M   libstdc++-v3/testsuite/ext/rope/pthread7-rope.cc
A  + libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/subtract_with_carry_01/requirements/constants.cc
A  + libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/subtract_with_carry/requirements/constants.cc
A  + libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/discard_block/requirements/constants.cc
A  + libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/linear_congruential/requirements/constants.cc
A  + libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/requirements/constants.cc
A  + libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/xor_combine/requirements/constants.cc
_M   libstdc++-v3/testsuite/23_containers/list/pthread1.cc
_M   libstdc++-v3/testsuite/23_containers/list/pthread5.cc
_M   libstdc++-v3/testsuite/23_containers/map/pthread6.cc
_M   libstdc++-v3/testsuite/20_util/unique_ptr/assign/assign_neg.cc
_M   libstdc++-v3/testsuite/20_util/ratio/cons/cons_overflow_neg.cc
_M   libstdc++-v3/testsuite/20_util/ratio/operations/ops_overflow_neg.cc
M    libstdc++-v3/acinclude.m4
M    configure.ac
M    libgfortran/configure
M    libgfortran/ChangeLog
M    libgfortran/config.h.in
M    libgfortran/configure.ac
M    libgfortran/io/io.h
M    libgfortran/io/unit.c
M    libgfortran/io/transfer.c
M    libgfortran/io/format.c
M    libgfortran/io/write_float.def
M    Makefile.tpl
M    libmudflap/ChangeLog
M    libmudflap/mf-runtime.c
M    include/ChangeLog
M    include/demangle.h
M    include/dwarf2.h
M    libiberty/ChangeLog
M    libiberty/testsuite/demangle-expected
M    libiberty/cplus-dem.c
M    libiberty/Makefile.in
M    libiberty/choose-temp.c
M    libiberty/cp-demangle.c
M    ChangeLog
M    ChangeLog.MELT
M    libffi/src/arm/sysv.S
M    libffi/src/x86/win64.S
M    libffi/ChangeLog
M    libjava/Makefile.in
M    libjava/libltdl/Makefile.in
M    libjava/libltdl/ltdl.h
M    libjava/libltdl/ChangeLog
M    libjava/libltdl/Makefile.am
M    libjava/configure.host
M    libjava/configure.ac
_M   libjava/classpath
M    libjava/ChangeLog
M    libjava/sysdep/i386/backtrace.h
M    libjava/configure
M    libjava/Makefile.am
M    libcpp/configure
M    libcpp/files.c
M    libcpp/ChangeLog
M    libcpp/configure.ac
M    MAINTAINERS


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@152327 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 44 insertions, 20 deletions

diff --git a/gcc/tree-eh.c b/gcc/tree-eh.c
index a1aa4b21571..3ed92a59bc7 100644
--- a/gcc/tree-eh.c
+++ b/gcc/tree-eh.c
@@ -2849,10 +2849,26 @@ lower_resx (basic_block bb, gimple stmt, struct pointer_map_t *mnt_map)
     dst_r = NULL;
 
   src_r = get_eh_region_from_number (gimple_resx_region (stmt));
-  src_nr = build_int_cst (NULL, src_r->index);
   gsi = gsi_last_bb (bb);
 
-  if (dst_r)
+  if (src_r == NULL)
+    {
+      /* We can wind up with no source region when pass_cleanup_eh shows
+	 that there are no entries into an eh region and deletes it, but
+	 then the block that contains the resx isn't removed.  This can
+	 happen without optimization when the switch statement created by
+	 lower_try_finally_switch isn't simplified to remove the eh case.
+
+	 Resolve this by expanding the resx node to an abort.  */
+
+      fn = implicit_built_in_decls[BUILT_IN_TRAP];
+      x = gimple_build_call (fn, 0);
+      gsi_insert_before (&gsi, x, GSI_SAME_STMT);
+
+      while (EDGE_COUNT (bb->succs) > 0)
+	remove_edge (EDGE_SUCC (bb, 0));
+    }
+  else if (dst_r)
     {
       /* When we have a destination region, we resolve this by copying
 	 the excptr and filter values into place, and changing the edge
@@ -2903,6 +2919,7 @@ lower_resx (basic_block bb, gimple stmt, struct pointer_map_t *mnt_map)
 	  tree dst_nr = build_int_cst (NULL, dst_r->index);
 
 	  fn = implicit_built_in_decls[BUILT_IN_EH_COPY_VALUES];
+	  src_nr = build_int_cst (NULL, src_r->index);
 	  x = gimple_build_call (fn, 2, dst_nr, src_nr);
 	  gsi_insert_before (&gsi, x, GSI_SAME_STMT);
 
@@ -2932,22 +2949,18 @@ lower_resx (basic_block bb, gimple stmt, struct pointer_map_t *mnt_map)
 	 up the call chain.  We resolve this by generating a call to the
 	 _Unwind_Resume library function.  */
 
-      /* ??? The ARM EABI redefines _Unwind_Resume as __cxa_end_cleanup
+      /* The ARM EABI redefines _Unwind_Resume as __cxa_end_cleanup
 	 with no arguments for C++ and Java.  Check for that.  */
-      switch (targetm.arm_eabi_unwinder)
+      if (src_r->use_cxa_end_cleanup)
+	{
+	  fn = implicit_built_in_decls[BUILT_IN_CXA_END_CLEANUP];
+	  x = gimple_build_call (fn, 0);
+	  gsi_insert_before (&gsi, x, GSI_SAME_STMT);
+	}
+      else
 	{
-	default:
-	  fn = implicit_built_in_decls[BUILT_IN_UNWIND_RESUME];
-	  if (TYPE_ARG_TYPES (TREE_TYPE (fn)) == void_list_node)
-	    {
-	      x = gimple_build_call (fn, 0);
-	      gsi_insert_before (&gsi, x, GSI_SAME_STMT);
-	      break;
-	    }
-	  /* FALLTHRU */
-
-	case 0:
 	  fn = implicit_built_in_decls[BUILT_IN_EH_POINTER];
+	  src_nr = build_int_cst (NULL, src_r->index);
 	  x = gimple_build_call (fn, 1, src_nr);
 	  var = create_tmp_var (ptr_type_node, NULL);
 	  var = make_ssa_name (var, x);
@@ -2957,7 +2970,6 @@ lower_resx (basic_block bb, gimple stmt, struct pointer_map_t *mnt_map)
 	  fn = implicit_built_in_decls[BUILT_IN_UNWIND_RESUME];
 	  x = gimple_build_call (fn, 1, var);
 	  gsi_insert_before (&gsi, x, GSI_SAME_STMT);
-	  break;
 	}
 
       gcc_assert (EDGE_COUNT (bb->succs) == 0);
@@ -3000,9 +3012,9 @@ execute_lower_resx (void)
 }
 
 static bool
-gate_lower_ehcontrol (void)
+gate_lower_resx (void)
 {
-  return cfun->eh->region_tree != NULL;
+  return flag_exceptions != 0;
 }
 
 struct gimple_opt_pass pass_lower_resx =
@@ -3010,7 +3022,7 @@ struct gimple_opt_pass pass_lower_resx =
  {
   GIMPLE_PASS,
   "resx",				/* name */
-  gate_lower_ehcontrol,			/* gate */
+  gate_lower_resx,			/* gate */
   execute_lower_resx,			/* execute */
   NULL,					/* sub */
   NULL,					/* next */
@@ -3175,12 +3187,18 @@ execute_lower_eh_dispatch (void)
   return any_rewritten ? TODO_update_ssa_only_virtuals : 0;
 }
 
+static bool
+gate_lower_eh_dispatch (void)
+{
+  return cfun->eh->region_tree != NULL;
+}
+
 struct gimple_opt_pass pass_lower_eh_dispatch =
 {
  {
   GIMPLE_PASS,
   "ehdisp",				/* name */
-  gate_lower_ehcontrol,			/* gate */
+  gate_lower_eh_dispatch,		/* gate */
   execute_lower_eh_dispatch,		/* execute */
   NULL,					/* sub */
   NULL,					/* next */
@@ -3351,6 +3369,12 @@ unsplit_eh (eh_landing_pad lp)
 	return false;
     }
 
+  /* The new destination block must not already be a destination of
+     the source block, lest we merge fallthru and eh edges and get
+     all sorts of confused.  */
+  if (find_edge (e_in->src, e_out->dest))
+    return false;
+
   /* ??? I can't imagine there would be PHI nodes, since by nature
      of critical edge splitting this block should never have been
      a dominance frontier.  If cfg cleanups somehow confuse this,