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| author | Richard Biener <rguenther@suse.de> | 2017-10-10 13:26:15 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-10-10 13:26:15 +0000 |
| commit | fb1fe1f3cc3a65f3734c29b4a2280f93b76eb7cc (patch) | |
| tree | c387c0bcdedbd737377a25613d0f4a667268c75f /gcc/tree-cfgcleanup.c | |
| parent | 0c6ddd1ddeccd6982ddedd3a05ea4db4769b18d5 (diff) | |
| download | gcc-fb1fe1f3cc3a65f3734c29b4a2280f93b76eb7cc.zip gcc-fb1fe1f3cc3a65f3734c29b4a2280f93b76eb7cc.tar.gz gcc-fb1fe1f3cc3a65f3734c29b4a2280f93b76eb7cc.tar.bz2 | |
tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Avoid compacting blocks if SCEV is active.
2017-10-10 Richard Biener <rguenther@suse.de>
* tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Avoid compacting
blocks if SCEV is active.
* tree-scalar-evolution.c (analyze_scalar_evolution_1): Remove
dead code.
(analyze_scalar_evolution): Handle cached evolutions the obvious way.
(scev_initialize): Assert we are not yet initialized.
From-SVN: r253585
Diffstat (limited to 'gcc/tree-cfgcleanup.c')
| -rw-r--r-- | gcc/tree-cfgcleanup.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-cfgcleanup.c b/gcc/tree-cfgcleanup.c index a7053d7..1a71c93 100644 --- a/gcc/tree-cfgcleanup.c +++ b/gcc/tree-cfgcleanup.c @@ -892,7 +892,11 @@ cleanup_tree_cfg_noloop (void) changed |= cleanup_tree_cfg_1 (); gcc_assert (dom_info_available_p (CDI_DOMINATORS)); - compact_blocks (); + + /* Do not renumber blocks if the SCEV cache is active, it is indexed by + basic-block numbers. */ + if (! scev_initialized_p ()) + compact_blocks (); checking_verify_flow_info (); |