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| author | Steven Bosscher <steven@gcc.gnu.org> | 2013-01-31 20:16:07 +0000 |
|---|---|---|
| committer | Steven Bosscher <steven@gcc.gnu.org> | 2013-01-31 20:16:07 +0000 |
| commit | c5f4be845ac03fb125b36df3a4c843ecceb0ceec (patch) | |
| tree | 139f3a4ed01812de1a59d784b01a1469f698cd0e /gcc/fwprop.c | |
| parent | 7c81527e48c72ac3409f3bf848eca64bf69015e5 (diff) | |
| download | gcc-c5f4be845ac03fb125b36df3a4c843ecceb0ceec.tar.gz | |
re PR c/56113 (out of memory when compiling a function with many goto labels (50k > ))
PR middle-end/56113
* fwprop.c (fwprop_init): Set up loops without CFG modifications.
From-SVN: r195632
Diffstat (limited to 'gcc/fwprop.c')
| -rw-r--r-- | gcc/fwprop.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/fwprop.c b/gcc/fwprop.c index a055fd041e0..6a82deabfd1 100644 --- a/gcc/fwprop.c +++ b/gcc/fwprop.c @@ -1404,10 +1404,10 @@ fwprop_init (void) calculate_dominance_info (CDI_DOMINATORS); /* We do not always want to propagate into loops, so we have to find - loops and be careful about them. But we have to call flow_loops_find - before df_analyze, because flow_loops_find may introduce new jump - insns (sadly) if we are not working in cfglayout mode. */ - loop_optimizer_init (0); + loops and be careful about them. Avoid CFG modifications so that + we don't have to update dominance information afterwards for + build_single_def_use_links. */ + loop_optimizer_init (AVOID_CFG_MODIFICATIONS); build_single_def_use_links (); df_set_flags (DF_DEFER_INSN_RESCAN); |