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reorg.c (fill_slots_from_thread): Check side_effects_p when trying the "opposite arithmetic" approach.

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* reorg.c (fill_slots_from_thread): Check side_effects_p when
	trying the "opposite arithmetic" approach.

From-SVN: r33125
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Hans-Peter Nilsson 2000-04-12 20:46:22 +00:00 committed by Hans-Peter Nilsson
parent 50b99cc8fe
commit 12d7e99cdc
2 changed files with 7 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
Wed Apr 12 22:44:11 2000 Hans-Peter Nilsson <hp@axis.com>
* reorg.c (fill_slots_from_thread): Check side_effects_p when
trying the "opposite arithmetic" approach.
Wed Apr 12 20:51:20 2000 J"orn Rennecke <amylaar@cygnus.co.uk>
* sh.h (STRUCT_VALUE): Just 0 for TARGET_HITACHI.

3
gcc/reorg.c
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@ -2808,7 +2808,8 @@ fill_slots_from_thread (insn, condition, thread, opposite_thread, likely,
dest = SET_DEST (pat), src = SET_SRC (pat);
if ((GET_CODE (src) == PLUS || GET_CODE (src) == MINUS)
&& rtx_equal_p (XEXP (src, 0), dest)
&& ! reg_overlap_mentioned_p (dest, XEXP (src, 1)))
&& ! reg_overlap_mentioned_p (dest, XEXP (src, 1))
&& ! side_effects_p (pat))
{
rtx other = XEXP (src, 1);
rtx new_arith;