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i386.c (notice_update_cc): Integer conditional moves don't affect cc0.

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* i386.c (notice_update_cc): Integer conditional moves don't
	affect cc0.

From-SVN: r20575
This commit is contained in:
John Wehle 1998-06-19 01:20:42 +00:00 • committed by Jeff Law
parent bbe8497f5e
commit 9c8c5afbfb
2 changed files with 6 additions and 1 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
Fri Jun 19 02:10:10 1998 John Wehle (john@feith.com)
* i386.c (notice_update_cc): Integer conditional moves don't
affect cc0.
* i386.md (movsfcc, movdfcc, movxfcc): Use emit_store_flag
to support LT, LE, GE, and GT signed integer comparisons.
(movsfcc+1, movsfcc+2, movdfcc+1, movdfcc+2,

4
gcc/config/i386/i386.c
View file

@ -3596,7 +3596,9 @@ notice_update_cc (exp)
(Note that moving a constant 0 or 1 MAY set the cc's). */
if (REG_P (SET_DEST (exp))
&& (REG_P (SET_SRC (exp)) || GET_CODE (SET_SRC (exp)) == MEM
|| GET_RTX_CLASS (GET_CODE (SET_SRC (exp))) == '<'))
|| GET_RTX_CLASS (GET_CODE (SET_SRC (exp))) == '<'
|| (GET_CODE (SET_SRC (exp)) == IF_THEN_ELSE
&& GET_MODE_CLASS (GET_MODE (SET_DEST (exp))) == MODE_INT)))
{
if (cc_status.value1
&& reg_overlap_mentioned_p (SET_DEST (exp), cc_status.value1))