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alpha.c (alpha_emit_conditional_move): Do not swap comparison operands when that would create non-canonical rtl. 

* config/alpha/alpha.c (alpha_emit_conditional_move): Do not swap
        comparison operands when that would create non-canonical rtl.

From-SVN: r38247
This commit is contained in:
Richard Henderson 2000-12-14 00:18:57 -08:00 committed by Richard Henderson
parent 34c659e2cf
commit c53f9f5bda
2 changed files with 16 additions and 5 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
2000-12-14 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (alpha_emit_conditional_move): Do not swap
comparison operands when that would create non-canonical rtl.
* config/i386/i386.md (umulsi3_highpart): Remove * from name.
(smulsi3_highpart): Likewise.

18
gcc/config/alpha/alpha.c
View File

@ -1908,9 +1908,14 @@ alpha_emit_conditional_move (cmp, mode)
case GE: case GT: case GEU: case GTU:
/* These must be swapped. */
cmp_code = swap_condition (code);
code = NE;
tem = op0, op0 = op1, op1 = tem;
if (op1 == CONST0_RTX (cmp_mode))
cmp_code = code, code = NE;
else
{
cmp_code = swap_condition (code);
code = NE;
tem = op0, op0 = op1, op1 = tem;
}
break;
default:
@ -1958,8 +1963,11 @@ alpha_emit_conditional_move (cmp, mode)
case GE: case GT: case GEU: case GTU:
/* These must be swapped. */
code = swap_condition (code);
tem = op0, op0 = op1, op1 = tem;
if (op1 != CONST0_RTX (cmp_mode))
{
code = swap_condition (code);
tem = op0, op0 = op1, op1 = tem;
}
break;
default: