| Message ID | 55B5108B.4040400@mentor.com |
|---|---|
| State | New |
| Headers | show |
On 26/07/15 18:53, Tom de Vries wrote: > On 26/07/15 18:49, Tom de Vries wrote: >> On 24/07/15 16:39, Tom de Vries wrote: >>> Hi, >>> >>> this patch allows parallelization and vectorization of reduction >>> operators that are guaranteed to not overflow (such as min and max >>> operators), independent of the overflow behaviour of the type. >>> >>> Bootstrapped and reg-tested on x86_64. >>> >>> OK for trunk? >>> >>> Thanks, >>> - Tom > > [ Slip-of-the-keyboard ] > > This is the graphite version of this patch. > > Bootstrapped and reg-tested on x86_64. > > OK for trunk? > Committed to gomp-4_0-branch. Thanks, - Tom > 0002-Handle-non-overflow-reductions-in-graphite.patch > > > Handle non-overflow reductions in graphite > > 2015-07-21 Tom de Vries<tom@codesourcery.com> > > * graphite-sese-to-poly.c (is_reduction_operation_p): Allow operations > that do not overflow. > --- > gcc/graphite-sese-to-poly.c | 15 +++++++++++++-- > 1 file changed, 13 insertions(+), 2 deletions(-) > > diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c > index c583f16..531c848 100644 > --- a/gcc/graphite-sese-to-poly.c > +++ b/gcc/graphite-sese-to-poly.c > @@ -2614,8 +2614,19 @@ 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)) > + { > + if (INTEGRAL_TYPE_P (type) > + && TYPE_OVERFLOW_WRAPS (type)) > + return true; > + > + if (no_overflow_tree_code (code, type)) > + return true; > + > + return false; > + } > + > + return false; > } > > /* Returns true when PHI contains an argument ARG. */ > -- 1.9.1 >
Handle non-overflow reductions in graphite 2015-07-21 Tom de Vries <tom@codesourcery.com> * graphite-sese-to-poly.c (is_reduction_operation_p): Allow operations that do not overflow. --- gcc/graphite-sese-to-poly.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c index c583f16..531c848 100644 --- a/gcc/graphite-sese-to-poly.c +++ b/gcc/graphite-sese-to-poly.c @@ -2614,8 +2614,19 @@ 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)) + { + if (INTEGRAL_TYPE_P (type) + && TYPE_OVERFLOW_WRAPS (type)) + return true; + + if (no_overflow_tree_code (code, type)) + return true; + + return false; + } + + return false; } /* Returns true when PHI contains an argument ARG. */ -- 1.9.1