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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2007-05-10 23:33:11 +0200 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2007-05-10 21:33:11 +0000 |
| commit | e71d7f88ba619aab4d53468d4f26e97a670842dd (patch) | |
| tree | 5bd5f7053c0c0609d3643ee5d62d5626410a8069 /gcc/tree-chrec.h | |
| parent | 5635c26e579161430860f8f85941949ccf586f1d (diff) | |
| download | gcc-e71d7f88ba619aab4d53468d4f26e97a670842dd.zip gcc-e71d7f88ba619aab4d53468d4f26e97a670842dd.tar.gz gcc-e71d7f88ba619aab4d53468d4f26e97a670842dd.tar.bz2 | |
re PR tree-optimization/31885 (Not removing empty loop, scev not finding the correct result)
PR tree-optimization/31885
* tree-chrec.c (chrec_contains_undetermined): Do not consider NULL_TREE
to be undetermined.
(automatically_generated_chrec_p): Return false for NULL.
* gcc.dg/tree-ssa/loop-29.c: New test.
From-SVN: r124602
Diffstat (limited to 'gcc/tree-chrec.h')
| -rw-r--r-- | gcc/tree-chrec.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/gcc/tree-chrec.h b/gcc/tree-chrec.h index 95c6f38..6be00d6 100644 --- a/gcc/tree-chrec.h +++ b/gcc/tree-chrec.h @@ -36,8 +36,7 @@ extern GTY(()) tree chrec_known; static inline bool automatically_generated_chrec_p (tree chrec) { - return (chrec == chrec_not_analyzed_yet - || chrec == chrec_dont_know + return (chrec == chrec_dont_know || chrec == chrec_known); } |