diff options
| author | Richard Biener <rguenther@suse.de> | 2021-02-01 09:18:43 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2021-02-01 09:21:26 +0100 |
| commit | 972918eea873f8b1663151316c4b3aee7ae028e2 (patch) | |
| tree | 76ff6a9d8ff5feba0b3e4a8df181bdcb0afa518c | |
| parent | b90d051ecbc1d8972ae1bf0cd7588fcc66df0722 (diff) | |
| download | gcc-972918eea873f8b1663151316c4b3aee7ae028e2.zip gcc-972918eea873f8b1663151316c4b3aee7ae028e2.tar.gz gcc-972918eea873f8b1663151316c4b3aee7ae028e2.tar.bz2 | |
rtl-optimization/98863 - prune RD with LIVE in STV
This sets DF_RD_PRUNE_DEAD_DEFS like all other uses of the UD/DU
chain problems which makes the RD problem consume a lot less memory.
2021-02-01 Richard Biener <rguenther@suse.de>
PR rtl-optimization/98863
* config/i386/i386-features.c (convert_scalars_to_vector):
Set DF_RD_PRUNE_DEAD_DEFS.
| -rw-r--r-- | gcc/config/i386/i386-features.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/i386/i386-features.c b/gcc/config/i386/i386-features.c index c7d6482..41891c9 100644 --- a/gcc/config/i386/i386-features.c +++ b/gcc/config/i386/i386-features.c @@ -1627,7 +1627,7 @@ convert_scalars_to_vector (bool timode_p) bitmap_initialize (&candidates[i], &bitmap_default_obstack); calculate_dominance_info (CDI_DOMINATORS); - df_set_flags (DF_DEFER_INSN_RESCAN); + df_set_flags (DF_DEFER_INSN_RESCAN | DF_RD_PRUNE_DEAD_DEFS); df_chain_add_problem (DF_DU_CHAIN | DF_UD_CHAIN); df_analyze (); |