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http://gcc.gnu.org/PR38740
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.
--- trunk/gcc/reorg.c 2009/01/28 15:12:11 143732
+++ trunk/gcc/reorg.c 2009/01/28 16:05:41 143733
@@ -4046,7 +4046,8 @@
gate_handle_delay_slots (void)
{
#ifdef DELAY_SLOTS
- return flag_delayed_branch;
+ /* At -O0 dataflow info isn't updated after RA. */
+ return optimize > 0 && flag_delayed_branch;
#else
return 0;
#endif
--- trunk/gcc/config/mips/mips.c 2009/01/28 15:12:11 143732
+++ trunk/gcc/config/mips/mips.c 2009/01/28 16:05:41 143733
@@ -13296,7 +13296,7 @@
mips16_lay_out_constants ();
if (mips_r10k_cache_barrier != R10K_CACHE_BARRIER_NONE)
r10k_insert_cache_barriers ();
- if (mips_base_delayed_branch)
+ if (optimize > 0 && mips_base_delayed_branch)
dbr_schedule (get_insns ());
mips_reorg_process_insns ();
if (!TARGET_MIPS16
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