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Accept a unary operator in constrain_operands 

From-SVN: r13017
This commit is contained in:
Ian Lance Taylor 1996-10-23 22:02:32 +00:00
parent ff428c90a4
commit b85f21c09b
1 changed files with 6 additions and 1 deletions
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7
gcc/recog.c
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@ -1,5 +1,5 @@
/* Subroutines used by or related to instruction recognition.
Copyright (C) 1987, 88, 91, 92, 93, 1994 Free Software Foundation, Inc.
Copyright (C) 1987, 88, 91-5, 1996 Free Software Foundation, Inc.
This file is part of GNU CC.
@ -1652,6 +1652,11 @@ constrain_operands (insn_code_num, strict)
earlyclobber[opno] = 0;
/* A unary operator may be accepted by the predicate, but it
is irrelevant for matching contraints. */
if (GET_RTX_CLASS (GET_CODE (op)) == '1')
op = XEXP (op, 0);
if (GET_CODE (op) == SUBREG)
{
if (GET_CODE (SUBREG_REG (op)) == REG