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riscv-gcc-1
Commit 9c8c5afb by John Wehle Committed by Jeff Law
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i386.c (notice_update_cc): Integer conditional moves don't affect cc0. 

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

From-SVN: r20575
parent bbe8497f
Showing with 6 additions and 1 deletions
gcc/ChangeLog
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,
......
gcc/config/i386/i386.c
......@@ -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))
......
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