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| author | Richard Henderson <rth@redhat.com> | 2009-09-14 12:18:58 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2009-09-14 12:18:58 -0700 |
| commit | 1d65f45cfaefa060737af130c3fc69afb3030980 (patch) | |
| tree | 2fcbbb5f99b13293753d83230cf9f4e0893a9b51 /gcc/gcse.c | |
| parent | 0c433c31b31f25e3f18e58bd8d404c02722d7f7c (diff) | |
| download | gcc-1d65f45cfaefa060737af130c3fc69afb3030980.zip gcc-1d65f45cfaefa060737af130c3fc69afb3030980.tar.gz gcc-1d65f45cfaefa060737af130c3fc69afb3030980.tar.bz2 | |
Squash commit of EH in gimple
From-SVN: r151696
Diffstat (limited to 'gcc/gcse.c')
| -rw-r--r-- | gcc/gcse.c | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -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. */ |