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* [gcc r11-5770] sel-sched-ir: Add missing call to `onlyjump_p'
@ 2020-12-05 18:28 Maciej W. Rozycki
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From: Maciej W. Rozycki @ 2020-12-05 18:28 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:4ec78ef4837eab9b7ce3f20d7f7b39c8a2f1e41c
commit r11-5770-g4ec78ef4837eab9b7ce3f20d7f7b39c8a2f1e41c
Author: Maciej W. Rozycki <macro@linux-mips.org>
Date: Sat Dec 5 18:26:24 2020 +0000
sel-sched-ir: Add missing call to `onlyjump_p'
Do not try to remove a conditional jump if it has side effects.
gcc/
* sel-sched-ir.c (maybe_tidy_empty_bb): Only try to remove a
conditional jump if `onlyjump_p'.
Diff:
---
gcc/sel-sched-ir.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/sel-sched-ir.c b/gcc/sel-sched-ir.c
index c8e086e4950..2bcd398391b 100644
--- a/gcc/sel-sched-ir.c
+++ b/gcc/sel-sched-ir.c
@@ -3793,7 +3793,8 @@ maybe_tidy_empty_bb (basic_block bb)
else if (single_succ_p (pred_bb) && any_condjump_p (BB_END (pred_bb)))
{
/* If possible, try to remove the unneeded conditional jump. */
- if (INSN_SCHED_TIMES (BB_END (pred_bb)) == 0
+ if (onlyjump_p (BB_END (pred_bb))
+ && INSN_SCHED_TIMES (BB_END (pred_bb)) == 0
&& !IN_CURRENT_FENCE_P (BB_END (pred_bb)))
{
if (!sel_remove_insn (BB_END (pred_bb), false, false))
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