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| author | Andre Vieira <andre.simoesdiasvieira@arm.com> | 2019-11-08 11:30:50 +0000 |
|---|---|---|
| committer | Andre Vieira <avieira@gcc.gnu.org> | 2019-11-08 11:30:50 +0000 |
| commit | b602712b3ea2a0729a2eda61bd9ee795aba6138f (patch) | |
| tree | cc38f47e613b2e2a337c0f9dbd2d9affbec30532 /gcc/tree-vect-loop.c | |
| parent | 5384a8027098be99e8d22613583a4f235d515a78 (diff) | |
| download | gcc-b602712b3ea2a0729a2eda61bd9ee795aba6138f.zip gcc-b602712b3ea2a0729a2eda61bd9ee795aba6138f.tar.gz gcc-b602712b3ea2a0729a2eda61bd9ee795aba6138f.tar.bz2 | |
[vect] Disable vectorization of epilogues for loops with SIMDUID set
gcc/ChangeLog:
2019-11-08 Andre Vieira <andre.simoesdiasvieira@arm.com>
* tree-vect-loop.c (vect_analyze_loop): Disable epilogue vectorization
for loops with SIMDUID set. Enable epilogue vectorization for loops
with SIMDLEN set after finding a main loop with a VF that matches it.
From-SVN: r277964
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index a2847ef..f25260c 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -2455,11 +2455,15 @@ vect_analyze_loop (class loop *loop, vec_info_shared *shared) delete loop_vinfo; /* Only vectorize epilogues if PARAM_VECT_EPILOGUES_NOMASK is - enabled, this is not a simd loop and it is the innermost loop. */ - vect_epilogues = (!loop->simdlen + enabled, SIMDUID is not set, it is the innermost loop and we have + either already found the loop's SIMDLEN or there was no SIMDLEN to + begin with. + TODO: Enable epilogue vectorization for loops with SIMDUID set. */ + vect_epilogues = (!simdlen && loop->inner == NULL && PARAM_VALUE (PARAM_VECT_EPILOGUES_NOMASK) && LOOP_VINFO_PEELING_FOR_NITER (first_loop_vinfo) + && !loop->simduid /* For now only allow one epilogue loop. */ && first_loop_vinfo->epilogue_vinfos.is_empty ()); |