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| author | Jakub Jelinek <jakub@redhat.com> | 2015-05-29 15:06:23 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2015-05-29 15:06:23 +0200 |
| commit | 2395a8ea086886c24090f1c9e9dde2515dc2fda8 (patch) | |
| tree | c894b409080257241f8d72971627df9474722fca /gcc/tree-if-conv.c | |
| parent | 52fc6859fe39a811a2a5ca81813e27cf1800b9c2 (diff) | |
| download | gcc-2395a8ea086886c24090f1c9e9dde2515dc2fda8.zip gcc-2395a8ea086886c24090f1c9e9dde2515dc2fda8.tar.gz gcc-2395a8ea086886c24090f1c9e9dde2515dc2fda8.tar.bz2 | |
re PR tree-optimization/66142 (Loop is not vectorized because not sufficient support for GOMP_SIMD_LANE)
PR tree-optimization/66142
* tree-if-conv.c (if_convertible_phi_p): Don't give up on
virtual phis that feed themselves.
* gcc.dg/vect/pr66142.c: New test.
From-SVN: r223863
Diffstat (limited to 'gcc/tree-if-conv.c')
| -rw-r--r-- | gcc/tree-if-conv.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-if-conv.c b/gcc/tree-if-conv.c index a85c7a2..28e1c47 100644 --- a/gcc/tree-if-conv.c +++ b/gcc/tree-if-conv.c @@ -594,7 +594,8 @@ if_convertible_phi_p (struct loop *loop, basic_block bb, gphi *phi, FOR_EACH_IMM_USE_FAST (use_p, imm_iter, gimple_phi_result (phi)) { - if (gimple_code (USE_STMT (use_p)) == GIMPLE_PHI) + if (gimple_code (USE_STMT (use_p)) == GIMPLE_PHI + && USE_STMT (use_p) != (gimple) phi) { if (dump_file && (dump_flags & TDF_DETAILS)) fprintf (dump_file, "Difficult to handle this virtual phi.\n"); |