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recog.c (constrain_operands): Ignore unary operators when matching operands.

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* recog.c (constrain_operands): Ignore unary operators when
        matching operands.  Recognize '5'..'9' as well.

From-SVN: r26342
This commit is contained in:
Jan Hubicka 1999-04-11 00:16:29 +02:00 committed by Richard Henderson
parent 83f4345f44
commit 62674ffe2b
2 changed files with 20 additions and 7 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sat Apr 10 22:12:12 1999 Jan Hubicka <hubicka@freesoft.cz>
* recog.c (constrain_operands): Ignore unary operators when
matching operands. Recognize '5'..'9' as well.
Sat Apr 10 21:53:02 1999 Philipp Thomas (kthomas@gwdg.de)
Richard Henderson <rth@cygnus.com>

22
gcc/recog.c
View File

@ -2303,11 +2303,8 @@ constrain_operands (strict)
earlyclobber[opno] = 1;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
/* This operand must be the same as a previous one.
This kind of constraint is used for instructions such
as add when they take only two operands.
@ -2319,8 +2316,19 @@ constrain_operands (strict)
if (strict < 0)
val = 1;
else
val = operands_match_p (recog_operand[c - '0'],
recog_operand[opno]);
{
rtx op1 = recog_operand[c - '0'];
rtx op2 = recog_operand[opno];
/* A unary operator may be accepted by the predicate,
but it is irrelevant for matching constraints. */
if (GET_RTX_CLASS (GET_CODE (op1)) == '1')
op1 = XEXP (op1, 0);
if (GET_RTX_CLASS (GET_CODE (op2)) == '1')
op2 = XEXP (op2, 0);
val = operands_match_p (op1, op2);
}
matching_operands[opno] = c - '0';
matching_operands[c - '0'] = opno;