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| author | Jakub Jelinek <jakub@redhat.com> | 2009-01-28 17:05:41 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2009-01-28 17:05:41 +0100 |
| commit | c7789bfb8c6f12d57f24952a4ac3c0ae935db61b (patch) | |
| tree | 42d7b3132654ac4bebb78e905e803a7d5675ccc9 /gcc | |
| parent | de081cfd3b88d197c6c3e545c6d55581140c7c21 (diff) | |
| download | gcc-c7789bfb8c6f12d57f24952a4ac3c0ae935db61b.zip gcc-c7789bfb8c6f12d57f24952a4ac3c0ae935db61b.tar.gz gcc-c7789bfb8c6f12d57f24952a4ac3c0ae935db61b.tar.bz2 | |
re PR rtl-optimization/38740 (Incorrect delayed branch optimization)
PR rtl-optimization/38740
* reorg.c (gate_handle_delay_slots): Avoid dbr scheduling
if !optimize.
* config/mips/mips.c (mips_reorg): Likewise.
From-SVN: r143733
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/mips/mips.c | 2 | ||||
| -rw-r--r-- | gcc/reorg.c | 3 |
3 files changed, 10 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 526398f..b2e3785 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2009-01-28 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/38740 + * reorg.c (gate_handle_delay_slots): Avoid dbr scheduling + if !optimize. + * config/mips/mips.c (mips_reorg): Likewise. + 2009-01-28 Richard Guenther <rguenther@suse.de> PR tree-optimization/38926 diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 55b1c22..c98528e 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -13296,7 +13296,7 @@ mips_reorg (void) mips16_lay_out_constants (); if (mips_r10k_cache_barrier != R10K_CACHE_BARRIER_NONE) r10k_insert_cache_barriers (); - if (flag_delayed_branch) + if (optimize > 0 && flag_delayed_branch) dbr_schedule (get_insns ()); mips_reorg_process_insns (); if (!TARGET_MIPS16 diff --git a/gcc/reorg.c b/gcc/reorg.c index fd6a58e..8b3219a 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -4046,7 +4046,8 @@ static bool gate_handle_delay_slots (void) { #ifdef DELAY_SLOTS - return flag_delayed_branch && !crtl->dbr_scheduled_p; + /* At -O0 dataflow info isn't updated after RA. */ + return optimize > 0 && flag_delayed_branch && !crtl->dbr_scheduled_p; #else return 0; #endif |