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S/390: Require a hardware vector support for test to succeed.

Message ID 20160127100432.GA32274@linux.vnet.ibm.com
State New
Headers show

Commit Message

Dominik Vogt Jan. 27, 2016, 10:04 a.m. UTC 
The test case works on S/390 too, but only with -march=z13 or
later (i.e. if Gcc can make use of hardware vector support).
Otherwise the optimization gets too complex.  The attached patch
forces Gcc to use -march=z13 instead of xfail'ing the test on
S/390.

What do you think about this approach?

Ciao

Dominik ^_^  ^_^

Comments

Andreas Krebbel Jan. 29, 2016, 10:09 a.m. UTC | #1 
On Wed, Jan 27, 2016 at 11:04:32AM +0100, Dominik Vogt wrote:
> gcc/testsuite/ChangeLog
> 
> 	* gcc.dg/tree-ssa/ssa-dom-cse-2.c: Require a hardware vector support for
> 	test to succeed.

Applied.  Thanks!

-Andreas-
diff mbox

Patch

From d855b255132d6a3ef46571e84aa75c95d8c3c737 Mon Sep 17 00:00:00 2001
From: Dominik Vogt <vogt@linux.vnet.ibm.com>
Date: Wed, 27 Jan 2016 08:55:03 +0100
Subject: [PATCH] S/390: Require a hardware vector support for test to
 succeed.

---
 gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-cse-2.c | 4 ++++
 1 file changed, 4 insertions(+)

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 2349400..f68b53b 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 +1,9 @@ 
 /* { dg-do compile } */
 /* { dg-options "-O3 -fno-tree-fre -fno-tree-pre -fdump-tree-optimized --param sra-max-scalarization-size-Ospeed=32" } */
+/* S390 needs hardware vector support for this to work (the optimization gets
+ * too complex without it.
+ * { dg-additional-options "-march=z13" { target { s390*-*-* } } } */
+
 
 int
 foo ()
-- 
2.3.0