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authorRichard Biener <rguenther@suse.de>2018-03-12 08:45:54 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2018-03-12 08:45:54 +0000
commitb79fa2f609c70a70125c979e363176002d1f9acd (patch)
treedd226d3a1bc5f86caaa35388d9ea8c042c999f9d /gcc/tree-ssa-loop-ch.c
parent823835a99d4e88d38b436c1b409e574398d3a34f (diff)
re PR tree-optimization/84777 (-Os inhibits all vectorization)
2018-03-12 Richard Biener <rguenther@suse.de> PR tree-optimization/84777 * tree-ssa-loop-ch.c (should_duplicate_loop_header_p): For force-vectorize loops ignore whether we are optimizing for size. From-SVN: r258444
Diffstat (limited to 'gcc/tree-ssa-loop-ch.c')
-rw-r--r--gcc/tree-ssa-loop-ch.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-ssa-loop-ch.c b/gcc/tree-ssa-loop-ch.c
index b2dee48e5d7..488999dd8ce 100644
--- a/gcc/tree-ssa-loop-ch.c
+++ b/gcc/tree-ssa-loop-ch.c
@@ -57,7 +57,8 @@ should_duplicate_loop_header_p (basic_block header, struct loop *loop,
be true, since quite often it is possible to verify that the condition is
satisfied in the first iteration and therefore to eliminate it. Jump
threading handles these cases now. */
- if (optimize_loop_for_size_p (loop))
+ if (optimize_loop_for_size_p (loop)
+ && !loop->force_vectorize)
{
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file,