From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2140) id 8F56D3851C1C; Tue, 9 Mar 2021 02:26:33 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8F56D3851C1C Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Alexandre Oliva To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/aoliva/heads/testme)] adjust vectorization expectations for ppc costmodel 76b X-Act-Checkin: gcc X-Git-Author: Alexandre Oliva X-Git-Refname: refs/users/aoliva/heads/testme X-Git-Oldrev: ccff168b509995018216256fa86af9ff8f843bf7 X-Git-Newrev: 246877415ab3cec9e0faaaa5196ed280608019c4 Message-Id: <20210309022633.8F56D3851C1C@sourceware.org> Date: Tue, 9 Mar 2021 02:26:33 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Mar 2021 02:26:33 -0000 https://gcc.gnu.org/g:246877415ab3cec9e0faaaa5196ed280608019c4 commit 246877415ab3cec9e0faaaa5196ed280608019c4 Author: Alexandre Oliva Date: Mon Mar 8 23:22:51 2021 -0300 adjust vectorization expectations for ppc costmodel 76b This test expects vectorization at power8+ because strict alignment is not required for vectors. For power7, vectorization is not to take place because it's not deemed profitable: 12 iterations would be required to make it so. But for power6 and below, the test's 10 iterations are enough to make vectorization profitable, but the test doesn't expect this. Assuming the decision is indeed appropriate, I'm adjusting the expectations. for gcc/testsuite/ChangeLog * gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c: Adjust expectations for cpus below power7. Diff: --- gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c b/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c index 5da4343198c..93798501228 100644 --- a/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c +++ b/gcc/testsuite/gcc.dg/vect/costmodel/ppc/costmodel-vect-76b.c @@ -45,9 +45,10 @@ int main (void) return 0; } -/* Peeling to align the store is used. Overhead of peeling is too high. */ -/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { vector_alignment_reachable && {! vect_no_align} } } } } */ -/* { dg-final { scan-tree-dump-times "vectorization not profitable" 1 "vect" { target { vector_alignment_reachable && {! vect_hw_misalign} } } } } */ +/* Peeling to align the store is used. Overhead of peeling is too high + for power7, but acceptable for earlier architectures. */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { has_arch_pwr7 && { vector_alignment_reachable && {! vect_no_align} } } } } } */ +/* { dg-final { scan-tree-dump-times "vectorization not profitable" 1 "vect" { target { has_arch_pwr7 && { vector_alignment_reachable && {! vect_hw_misalign} } } } } } */ /* Versioning to align the store is used. Overhead of versioning is not too high. */ -/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_no_align || {! vector_alignment_reachable} } } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_no_align || { {! vector_alignment_reachable} || {! has_arch_pwr7 } } } } } } */