[testsuite] XFAIL gcc.dg/tree-ssa/ssa-dom-cse-2.c on non-NEON arm targets

This test fails to optimise away the PLUS reduction in the loop on arm targets when vectorisation
is not enabled due to absence of SIMD instructions.
From reading the logs and the PR I gather that the presence or absence of SIMD affects the passing of this test
on other targets as well, as evidenced by the long list of xfail targets.
This list looks quite unwieldy to me, but here is a patch adding non-NEON arm to that list.

    * gcc.dg/tree-ssa/ssa-dom-cse-2.c: XFAIL on !arm_neon arm targets.

From-SVN: r257175

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d158aa25baab6210f7762c299049e500892b81bf..8e68df6c379754366d922c043c4465d373e9573c 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2018-01-30  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+       * gcc.dg/tree-ssa/ssa-dom-cse-2.c: XFAIL on !arm_neon arm targets.
+
 2018-01-30  Kirill Yukhin  <kirill.yukhin@gmail.com>
 
         PR target/83828

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 7e77a6a0a226262541674bec1d7bdf081e916215..8606969e0940c36d6ba23f8e213b2fd4f5c1d52d 100644 (file)
--- a/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c
@@ -25,4 +25,4 @@ foo ()
    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 { { alpha*-*-* hppa*64*-*-* nvptx*-*-* } || { { lp64 && { powerpc*-*-* sparc*-*-* riscv*-*-* } } || aarch64_sve } } } } } */
+/* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail { { alpha*-*-* hppa*64*-*-* nvptx*-*-* } || { { { lp64 && { powerpc*-*-* sparc*-*-* riscv*-*-* } } || aarch64_sve } || { arm*-*-* && { ! arm_neon } } } } } } } */