From: Bill Schmidt Date: Fri, 3 Feb 2017 19:06:58 +0000 (+0000) Subject: backport: re PR testsuite/65484 (FAIL: g++.dg/vect/pr36648.cc on powerpc64) X-Git-Tag: releases/gcc-5.5.0~542 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2d82db755f3ab3c929f1edaec402245f157dcf2;p=thirdparty%2Fgcc.git backport: re PR testsuite/65484 (FAIL: g++.dg/vect/pr36648.cc on powerpc64) 2017-02-03 Bill Schmidt Backport from mainline 2017-01-27 Bill Schmidt PR target/65484 * g++.dg/vect/pr36648.cc: Modify to reflect that the loop is not vectorized on POWER unless hardware misaligned loads are available. From-SVN: r245164 --- diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 99dd282d6c63..c48f28269d02 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,13 @@ +2017-02-03 Bill Schmidt + + Backport from mainline + 2017-01-27 Bill Schmidt + + PR target/65484 + * g++.dg/vect/pr36648.cc: Modify to reflect that the loop is not + vectorized on POWER unless hardware misaligned loads are + available. + 2017-01-26 Richard Biener Backport from mainline diff --git a/gcc/testsuite/g++.dg/vect/pr36648.cc b/gcc/testsuite/g++.dg/vect/pr36648.cc index 6306b4d65404..6bd26b274870 100644 --- a/gcc/testsuite/g++.dg/vect/pr36648.cc +++ b/gcc/testsuite/g++.dg/vect/pr36648.cc @@ -17,8 +17,13 @@ Foo foo; int main() { } -/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { ! vect_no_align } } } } */ -/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { ! vect_no_align } } } } */ +/* On older powerpc hardware (POWER7 and earlier), the default flag + -mno-allow-movmisalign prevents vectorization. On POWER8 and later, + when vect_hw_misalign is true, vectorization occurs. For other + targets, ! vect_no_align is a sufficient test. */ + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { { { ! vect_no_align } && { ! powerpc*-*-* } } || { powerpc*-*-* && vect_hw_misalign } } } } } */ +/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { { { ! vect_no_align } && { ! powerpc*-*-* } } || { powerpc*-*-* && vect_hw_misalign } } } } } */ /* { dg-final { cleanup-tree-dump "vect" } } */