Hi,
This test has been flaky on both AIX and in older linux based
environments. Notably, the number of xxlor instructions
generated varies depending on the platform and the specified
bit-size (32/64), with older environments generating either 6 or 24
xxlor instructions. The behavior appears to level out on power8 targets,
so update this test to target power8-vector and specify the
-mpower8-vector option.
[gcc/testsuite]
2017-05-26 Will Schmidt <will_schm...@vnet.ibm.com>
* gcc.target/powerpc/fold-vec-logical-ors-longlong.c:
Update the target to powerpc_p8vector_ok. Update dg-options
value to -mpower8-vector.
diff --git a/gcc/testsuite/gcc.target/powerpc/fold-vec-logical-ors-longlong.c
b/gcc/testsuite/gcc.target/powerpc/fold-vec-logical-ors-longlong.c
index 7ca23fb..10c69d3 100644
--- a/gcc/testsuite/gcc.target/powerpc/fold-vec-logical-ors-longlong.c
+++ b/gcc/testsuite/gcc.target/powerpc/fold-vec-logical-ors-longlong.c
@@ -2,8 +2,8 @@
* long long inputs produce the right results. */
/* { dg-do compile } */
-/* { dg-require-effective-target powerpc_vsx_ok } */
-/* { dg-options "-mvsx -O2" } */
+/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-options "-mpower8-vector -O2" } */
#include <altivec.h>
@@ -151,11 +151,11 @@ test6_nor (vector unsigned long long x, vector unsigned
long long y)
return *foo;
}
-// Codegen on power7 is such that the vec_or() tests generate more xxlor
-// instructions than what is seen on power8 or newer.
-// Thus, an additional target clause for the xxlor instruction check.
-/* { dg-final { scan-assembler-times {\mxxlor\M} 6 { target p8vector_hw } } }
*/
-/* { dg-final { scan-assembler-times {\mxxlor\M} 24 { target { ! p8vector_hw }
} } } */
+// The number of xxlor instructions generated varies between 6 and 24 for
+// older systems (power6,power7), as well as for 32-bit versus 64-bit targets.
+// For simplicity, this test now only targets "powerpc_p8vector_ok"
environments
+// where the answer is expected to be 6.
+/* { dg-final { scan-assembler-times {\mxxlor\M} 6 } } */
/* { dg-final { scan-assembler-times {\mxxlxor\M} 6 } } */
/* { dg-final { scan-assembler-times {\mxxlnor\M} 6 } } */
