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optabs.c (expand_doubleword_mult): Avoid clobbering op0 and op1 whilst expanding the signed widenening multiply...

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* optabs.c (expand_doubleword_mult): Avoid clobbering op0 and
	op1 whilst expanding the signed widenening multiply variant.

From-SVN: r96537
This commit is contained in:
Roger Sayle 2005-03-15 23:30:23 +00:00 committed by Roger Sayle
parent d522e7a222
commit 69f39b11aa
2 changed files with 9 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-03-15 Roger Sayle <roger@eyesopen.com>
* optabs.c (expand_doubleword_mult): Avoid clobbering op0 and
op1 whilst expanding the signed widenening multiply variant.
2005-03-15 Richard Sandiford <rsandifo@redhat.com>
* toplev.c (display_target_options): Avoid unused variable warning if

8
gcc/optabs.c
View File

@ -843,7 +843,7 @@ expand_doubleword_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
NULL_RTX, 1, methods);
if (temp)
op0_high = expand_binop (word_mode, add_optab, op0_high, temp,
op0_high, 0, OPTAB_DIRECT);
NULL_RTX, 0, OPTAB_DIRECT);
else
{
temp = expand_binop (word_mode, ashr_optab, op0_low, wordm1,
@ -851,7 +851,7 @@ expand_doubleword_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
if (!temp)
return NULL_RTX;
op0_high = expand_binop (word_mode, sub_optab, op0_high, temp,
op0_high, 0, OPTAB_DIRECT);
NULL_RTX, 0, OPTAB_DIRECT);
}
if (!op0_high)
@ -872,7 +872,7 @@ expand_doubleword_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
NULL_RTX, 1, methods);
if (temp)
op1_high = expand_binop (word_mode, add_optab, op1_high, temp,
op1_high, 0, OPTAB_DIRECT);
NULL_RTX, 0, OPTAB_DIRECT);
else
{
temp = expand_binop (word_mode, ashr_optab, op1_low, wordm1,
@ -880,7 +880,7 @@ expand_doubleword_mult (enum machine_mode mode, rtx op0, rtx op1, rtx target,
if (!temp)
return NULL_RTX;
op1_high = expand_binop (word_mode, sub_optab, op1_high, temp,
op1_high, 0, OPTAB_DIRECT);
NULL_RTX, 0, OPTAB_DIRECT);
}
if (!op1_high)