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riscv-gcc-1
Commit dbf4f1a2 by Roger Sayle Committed by Roger Sayle
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* combine.c (simplify_set): Treat MODE_CC registers like cc0. 

From-SVN: r58148
parent 8c536ae9
Showing with 7 additions and 5 deletions
gcc/ChangeLog
2002-10-14 Roger Sayle <roger@eyesopen.com>
* combine.c (simplify_set): Treat MODE_CC registers like cc0.
2002-10-14 Roger Sayle <roger@eyesopen.com>
Zack Weinberg <zack@codesourcery.com>
* config/i386/i386.c (k6_cost): Correct typo.
......
gcc/combine.c
......@@ -5021,11 +5021,9 @@ simplify_set (x)
/* If we are setting CC0 or if the source is a COMPARE, look for the use of
the comparison result and try to simplify it unless we already have used
undobuf.other_insn. */
if ((GET_CODE (src) == COMPARE
#ifdef HAVE_cc0
|| dest == cc0_rtx
#endif
)
if ((GET_MODE_CLASS (mode) == MODE_CC
|| GET_CODE (src) == COMPARE
|| CC0_P (dest))
&& (cc_use = find_single_use (dest, subst_insn, &other_insn)) != 0
&& (undobuf.other_insn == 0 || other_insn == undobuf.other_insn)
&& GET_RTX_CLASS (GET_CODE (*cc_use)) == '<'
......
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