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(expand_divmod): If rem_flag, always force op0 to a register. 

From-SVN: r6053
This commit is contained in:
Richard Stallman 1993-11-10 21:28:27 +00:00
parent 3fc2151db4
commit 29d40fa4d8
1 changed files with 4 additions and 3 deletions
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7
gcc/expmed.c
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@ -2403,8 +2403,9 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp)
|| code == ROUND_MOD_EXPR || code == ROUND_DIV_EXPR)
{
/* If we want the remainder, we may need to use OP0, so make sure
it and ADJUSTED_OP0 are in different registers. If we want to
preserve subexpressions, make sure OP0 is in a register.
it and ADJUSTED_OP0 are in different registers. We force OP0
to a register in case it has any queued subexpressions, because
emit_cmp_insn will call emit_queue.
If we don't want the remainder, we aren't going to use OP0 anymore.
However, if we cannot clobber OP0 (and hence ADJUSTED_OP0), we must
@ -2414,7 +2415,7 @@ expand_divmod (rem_flag, code, mode, op0, op1, target, unsignedp)
CAN_CLOBBER_OP0 will be zero and we know that OP0 cannot
equal TARGET. */
if (rem_flag && preserve_subexpressions_p ())
if (rem_flag)
op0 = force_reg (compute_mode, op0);
if (! can_clobber_op0)