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| author | Yuri Rumyantsev <ysrumyan@gmail.com> | 2016-06-29 10:16:43 +0000 |
|---|---|---|
| committer | Ilya Enkovich <ienkovich@gcc.gnu.org> | 2016-06-29 10:16:43 +0000 |
| commit | fafe9318b735a4b3276b39a73c42aef7a69249d1 (patch) | |
| tree | 539485ffd799c2f0f5e94bdb32f89232d1dc070d /gcc/tree-vect-loop.c | |
| parent | 54d19c3b7fb38097973a57b6e822e15cbcbd031d (diff) | |
| download | gcc-fafe9318b735a4b3276b39a73c42aef7a69249d1.zip gcc-fafe9318b735a4b3276b39a73c42aef7a69249d1.tar.gz gcc-fafe9318b735a4b3276b39a73c42aef7a69249d1.tar.bz2 | |
re PR tree-optimization/70729 (Loop marked with omp simd pragma is not vectorized)
gcc/
2016-06-29 Yuri Rumyantsev <ysrumyan@gmail.com>
PR tree-optimization/70729
* tree-ssa-loop-im.c (ref_indep_loop_p_1): Consider memory reference as
independent in loops having positive safelen value.
* tree-vect-loop.c (vect_transform_loop): Clear-up safelen value since
it may be not valid after vectorization.
gcc/testsuite/
2016-06-29 Yuri Rumyantsev <ysrumyan@gmail.com>
PR tree-optimization/70729
* g++.dg/vect/pr70729.cc: New test.
From-SVN: r237844
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 6c0337b..5e40076 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -6968,6 +6968,9 @@ vect_transform_loop (loop_vec_info loop_vinfo) FOR_EACH_VEC_ELT (LOOP_VINFO_SLP_INSTANCES (loop_vinfo), i, instance) vect_free_slp_instance (instance); LOOP_VINFO_SLP_INSTANCES (loop_vinfo).release (); + /* Clear-up safelen field since its value is invalid after vectorization + since vectorized loop can have loop-carried dependencies. */ + loop->safelen = 0; } /* The code below is trying to perform simple optimization - revert |