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| author | Jan Hubicka <jh@suse.cz> | 2002-09-30 15:00:32 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2002-09-30 13:00:32 +0000 |
| commit | 48ddd46c41cb690543ffc86828d664ce78af6122 (patch) | |
| tree | 33d3f218be00b75d8fa831ceef6ceaea83289f19 | |
| parent | ca25149e05e3fbd98290f71f1d41d008cd77cf56 (diff) | |
| download | gcc-48ddd46c41cb690543ffc86828d664ce78af6122.zip gcc-48ddd46c41cb690543ffc86828d664ce78af6122.tar.gz gcc-48ddd46c41cb690543ffc86828d664ce78af6122.tar.bz2 | |
i386.h (TARGET_CPP_CPU_BUILTINS): Define __SSE_MATH__.
* i386.h (TARGET_CPP_CPU_BUILTINS): Define __SSE_MATH__.
* gcse.c (cprop_jump): Check that the register has not
been modified
(cprop_jump): Likewise.
From-SVN: r57648
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/i386/i386.h | 4 | ||||
| -rw-r--r-- | gcc/gcse.c | 11 |
3 files changed, 21 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 15dfb25..76793fb 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +Mon Sep 30 14:57:18 CEST 2002 Jan Hubicka <jh@suse.cz> + + * i386.h (TARGET_CPP_CPU_BUILTINS): Define __SSE_MATH__. + + * gcse.c (cprop_jump): Check that the register has not + been modified + (cprop_jump): Likewise. + 2002-09-30 Richard Earnshaw <rearnsha@arm.com> * arm.h (BASE_REG_CLASS): Always return LO_REGS for Thumb. diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 68fa740..af9c37fc 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -529,6 +529,10 @@ extern int x86_prefetch_sse; builtin_define ("__SSE__"); \ if (TARGET_SSE2) \ builtin_define ("__SSE2__"); \ + if (TARGET_SSE_MATH && TARGET_SSE) \ + builtin_define ("__SSE_MATH__"); \ + if (TARGET_SSE_MATH && TARGET_SSE2) \ + builtin_define ("__SSE2_MATH__"); \ \ /* Built-ins based on -march=. */ \ if (ix86_arch == PROCESSOR_I486) \ @@ -4054,7 +4054,9 @@ cprop_jump (bb, setcc, jump, from, src) /* First substitute in the INSN condition as the SET_SRC of the JUMP, then substitute that given values in this expanded JUMP. */ - if (setcc != NULL) + if (setcc != NULL + && !modified_between_p (from, setcc, jump) + && !modified_between_p (src, setcc, jump)) { rtx setcc_set = single_set (setcc); new_set = simplify_replace_rtx (SET_SRC (set), @@ -4068,7 +4070,7 @@ cprop_jump (bb, setcc, jump, from, src) /* If no simplification can be made, then try the next register. */ - if (rtx_equal_p (new, new_set)) + if (rtx_equal_p (new, new_set) || rtx_equal_p (new, SET_SRC (set))) return 0; /* If this is now a no-op delete it, otherwise this must be a valid insn. */ @@ -4076,6 +4078,11 @@ cprop_jump (bb, setcc, jump, from, src) delete_insn (jump); else { + /* Ensure the value computed inside the jump insn to be equivalent + to one computed by setcc. */ + if (setcc + && modified_in_p (new, setcc)) + return 0; if (! validate_change (jump, &SET_SRC (set), new, 0)) return 0; |