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| author | Bin Cheng <bin.cheng@arm.com> | 2017-07-28 14:54:20 +0000 |
|---|---|---|
| committer | Bin Cheng <amker@gcc.gnu.org> | 2017-07-28 14:54:20 +0000 |
| commit | 67bb451dfbfbac87a1289ad4e9e38f7c2abf4d02 (patch) | |
| tree | dcaef9f3ef61d6b89913d524d4b0290c4617b1d7 /gcc | |
| parent | 6c35e5b02212b72e5cbbd6ff8c3e413c2c2a21aa (diff) | |
| download | gcc-67bb451dfbfbac87a1289ad4e9e38f7c2abf4d02.zip gcc-67bb451dfbfbac87a1289ad4e9e38f7c2abf4d02.tar.gz gcc-67bb451dfbfbac87a1289ad4e9e38f7c2abf4d02.tar.bz2 | |
* tree-predcom.c (determine_roots_comp): Skip trivial components.
From-SVN: r250665
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/tree-predcom.c | 5 |
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d153c13..0419984 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2017-07-28 Bin Cheng <bin.cheng@arm.com> + + * tree-predcom.c (determine_roots_comp): Skip trivial components. + 2017-07-28 Richard Biener <rguenther@suse.de> * match.pd: Remove superfluous :c. diff --git a/gcc/tree-predcom.c b/gcc/tree-predcom.c index 6baa606..536fe34 100644 --- a/gcc/tree-predcom.c +++ b/gcc/tree-predcom.c @@ -1227,8 +1227,11 @@ determine_roots_comp (struct loop *loop, return; } - comp->refs.qsort (order_drefs); + /* Trivial component. */ + if (comp->refs.length () <= 1) + return; + comp->refs.qsort (order_drefs); FOR_EACH_VEC_ELT (comp->refs, i, a) { if (!chain || DR_IS_WRITE (a->ref) |