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| author | vries <vries@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-08-01 08:29:29 +0000 |
|---|---|---|
| committer | vries <vries@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-08-01 08:29:29 +0000 |
| commit | 5955834f8d62c6f1d5f3921c6fd6c5e56032639b (patch) | |
| tree | 0353ecb04dbb4fcc695e28eb9c4d13e340815664 /gcc/graphite-sese-to-poly.c | |
| parent | 4691a5303dc8ea741d6c05262a7bb0a4245742e6 (diff) | |
Allow non-overflow ops in reductions
2015-08-01 Tom de Vries <tom@codesourcery.com>
* tree.c (operation_can_overflow, operation_no_trapping_overflow): New
function.
* tree.h (operation_can_overflow, operation_no_trapping_overflow):
Declare.
* tree-vect-loop.c (vect_is_simple_reduction_1): Use
operation_no_trapping_overflow. Allow non-overflow operations.
* graphite-sese-to-poly.c (is_reduction_operation_p): Allow non-overflow
operations.
* gcc.dg/autopar/reduc-2char.c (init_arrays): Mark with attribute
optimize ("-ftree-parallelize-loops=0").
Add successful scans for 2 detected reductions. Add xfail scans for 3
detected reductions.
* gcc.dg/autopar/reduc-2short.c: Same.
* gcc.dg/autopar/reduc-8.c (init_arrays): Mark with attribute
optimize ("-ftree-parallelize-loops=0"). Add successful scans for 2
detected reductions.
* gcc.dg/vect/trapv-vect-reduc-4.c: Update scan to match vectorized min
and max reductions.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@226463 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/graphite-sese-to-poly.c')
| -rw-r--r-- | gcc/graphite-sese-to-poly.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c index c583f167157..fdcc790336c 100644 --- a/gcc/graphite-sese-to-poly.c +++ b/gcc/graphite-sese-to-poly.c @@ -2614,8 +2614,11 @@ is_reduction_operation_p (gimple stmt) if (FLOAT_TYPE_P (type)) return flag_associative_math; - return (INTEGRAL_TYPE_P (type) - && TYPE_OVERFLOW_WRAPS (type)); + if (ANY_INTEGRAL_TYPE_P (type)) + return (TYPE_OVERFLOW_WRAPS (type) + || !operation_can_overflow (code)); + + return false; } /* Returns true when PHI contains an argument ARG. */ |