From da976fa8997acbfe87dcc8eef44a919b82a659c7 Mon Sep 17 00:00:00 2001 From: Alan Lawrence Date: Mon, 18 Jan 2016 12:51:36 +0000 Subject: [PATCH] Un-XFAIL ssa-dom-cse-2.c for most platforms * gcc.dg/tree-ssa/ssa-dom-cse-2.c: Remove XFAIL for powerpc(32), hppa, aarch64, sparc, s390. Add --param sra-max-scalarization-size-Ospeed. From-SVN: r232510 --- gcc/testsuite/ChangeLog | 6 ++++++ gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c | 9 +++++---- 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 81bd301..ade60b7 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,6 +1,12 @@ 2016-01-18 Alan Lawrence PR target/63679 + * gcc.dg/tree-ssa/ssa-dom-cse-2.c: Remove XFAIL for powerpc(32), hppa, + aarch64, sparc, s390. Add --param sra-max-scalarization-size-Ospeed. + +2016-01-18 Alan Lawrence + + PR target/63679 * gcc.dg/tree-ssa/ssa-dom-cse-5.c: New. * gcc.dg/tree-ssa/ssa-dom-cse-6.c: New. * gcc.dg/tree-ssa/ssa-dom-cse-7.c: New. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c index 9eccdc9..748448e 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O3 -fno-tree-fre -fno-tree-pre -fdump-tree-optimized" } */ +/* { dg-options "-O3 -fno-tree-fre -fno-tree-pre -fdump-tree-optimized --param sra-max-scalarization-size-Ospeed=32" } */ int foo () @@ -17,7 +17,8 @@ foo () /* After late unrolling the above loop completely DOM should be able to optimize this to return 28. */ -/* See PR63679 and PR64159, if the target forces the initializer to memory then - DOM is not able to perform this optimization. */ +/* On alpha, the vectorizer generates writes of two vector elements at once, + but the loop reads only one element at a time, and DOM cannot resolve these. + The same happens on powerpc depending on the SIMD support available. */ -/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail aarch64*-*-* alpha*-*-* hppa*-*-* powerpc*-*-* sparc*-*-* s390*-*-* } } } */ +/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail alpha*-*-* powerpc64*-*-* } } } */ -- 2.7.4