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(do_store_flag): Ensure we don't get confused when emit_store_flag

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fails and an operand has a QUEUED.

From-SVN: r2540
This commit is contained in:
Richard Kenner 1992-10-21 07:33:55 -04:00
parent 1a94ca4920
commit d39985fabf
1 changed files with 8 additions and 2 deletions
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10
gcc/expr.c
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@ -7160,8 +7160,14 @@ do_store_flag (exp, target, mode, only_cheap)
if (target == 0)
target = gen_reg_rtx (mode);
result = emit_store_flag (target, code, op0, op1, operand_mode,
unsignedp, 1);
/* Pass copies of OP0 and OP1 in case they contain a QUEUED. This is safe
because, if the emit_store_flag does anything it will succeed and
OP0 and OP1 will not be used subsequently. */
result = emit_store_flag (target, code,
queued_subexp_p (op0) ? copy_rtx (op0) : op0,
queued_subexp_p (op1) ? copy_rtx (op1) : op1,
operand_mode, unsignedp, 1);
if (result)
{