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recog.c (constrain_operands): Initialize which_alternative before no alternatives early exit.

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* recog.c (constrain_operands): Initialize which_alternative
        before no alternatives early exit.

From-SVN: r37065
This commit is contained in:
Richard Henderson 2000-10-25 17:30:55 -07:00 committed by Richard Henderson
parent 78192b0984
commit 4667f70546
2 changed files with 6 additions and 7 deletions
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7
gcc/ChangeLog
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@ -1,14 +1,13 @@
2000-10-25 Richard Henderson <rth@redhat.com>
* recog.c (constrain_operands): Initialize which_alternative
before no alternatives early exit.
* cse.c (find_comparison_args): Check that we can reverse a
comparison if needed before accepting the substitution.
2000-10-25 Richard Henderson <rth@redhat.com>
* reload.c (find_reloads_address_part): Kill rtx obstack hackery.
2000-10-25 Richard Henderson <rth@redhat.com>
* simplify-rtx.c (simplify_relational_operation): Sign extend
low words before sign extending to high words.

6
gcc/recog.c
View File

@ -2332,6 +2332,7 @@ constrain_operands (strict)
struct funny_match funny_match[MAX_RECOG_OPERANDS];
int funny_match_index;
which_alternative = 0;
if (recog_data.n_operands == 0 || recog_data.n_alternatives == 0)
return 1;
@ -2341,9 +2342,7 @@ constrain_operands (strict)
matching_operands[c] = -1;
}
which_alternative = 0;
while (which_alternative < recog_data.n_alternatives)
do
{
register int opno;
int lose = 0;
@ -2646,6 +2645,7 @@ constrain_operands (strict)
which_alternative++;
}
while (which_alternative < recog_data.n_alternatives);
which_alternative = -1;
/* If we are about to reject this, but we are not to test strictly,