diff options
Diffstat (limited to 'gcc/gcse.c')
| -rw-r--r-- | gcc/gcse.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/gcc/gcse.c b/gcc/gcse.c index dc4aa8b9a96..803ab3e5a14 100644 --- a/gcc/gcse.c +++ b/gcc/gcse.c @@ -1353,9 +1353,11 @@ hash_scan_set (rtx pat, rtx insn, struct hash_table_d *table) /* Don't GCSE something if we can't do a reg/reg copy. */ && can_copy_p (GET_MODE (dest)) /* GCSE commonly inserts instruction after the insn. We can't - do that easily for EH_REGION notes so disable GCSE on these - for now. */ - && !find_reg_note (insn, REG_EH_REGION, NULL_RTX) + do that easily for EH edges so disable GCSE on these for now. */ + /* ??? We can now easily create new EH landing pads at the + gimple level, for splitting edges; there's no reason we + can't do the same thing at the rtl level. */ + && !can_throw_internal (insn) /* Is SET_SRC something we want to gcse? */ && want_to_gcse_p (src) /* Don't CSE a nop. */ @@ -1415,9 +1417,8 @@ hash_scan_set (rtx pat, rtx insn, struct hash_table_d *table) /* Don't GCSE something if we can't do a reg/reg copy. */ && can_copy_p (GET_MODE (src)) /* GCSE commonly inserts instruction after the insn. We can't - do that easily for EH_REGION notes so disable GCSE on these - for now. */ - && ! find_reg_note (insn, REG_EH_REGION, NULL_RTX) + do that easily for EH edges so disable GCSE on these for now. */ + && !can_throw_internal (insn) /* Is SET_DEST something we want to gcse? */ && want_to_gcse_p (dest) /* Don't CSE a nop. */ |