Hi All,
This patch enables tests for Dot Product vectorization
in gcc for ARM and AArch64.
The ARMv8.2-a Dot Product instructions only support 8-bit
element vectorization.
Dot product is available from ARMv8.2-a and onwards.
Regtested and bootstrapped on aarch64-none-elf and
arm-none-eabi and no issues.
Ok for trunk?
gcc/testsuite
2017-09-01 Tamar Christina <tamar.christ...@arm.com>
* gcc.dg/vect/vect-reduc-dot-s8a.c
(dg-additional-options, dg-require-effective-target): Add +dotprod.
* gcc.dg/vect/vect-reduc-dot-u8a.c
(dg-additional-options, dg-require-effective-target): Add +dotprod.
--
diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8a.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8a.c
index dc4f52019d5435edbbc811b73dee0f98ff44c1b1..c36fbcbf4693f59c2ca747aeb2d41dcd0f48f673 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8a.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s8a.c
@@ -1,4 +1,6 @@
/* { dg-require-effective-target vect_int } */
+/* { dg-additional-options "-O3 -march=armv8.2-a+dotprod" { target { aarch64*-*-* || arm*-*-* } } } */
+/* { dg-require-effective-target arm_arch_v8a_ok { target arm*-*-* } } */
#include <stdarg.h>
#include "tree-vect.h"
diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-u8a.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-u8a.c
index f3cc6c78c25305d91becd585be8949514ebc521c..c449103d8c8ed8d0861c7e9c231558c86d4f1b85 100644
--- a/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-u8a.c
+++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-u8a.c
@@ -1,4 +1,6 @@
/* { dg-require-effective-target vect_int } */
+/* { dg-additional-options "-O3 -march=armv8.2-a+dotprod" { target { aarch64*-*-* || arm*-*-* } } } */
+/* { dg-require-effective-target arm_arch_v8a_ok { target arm*-*-* } } */
#include <stdarg.h>
#include "tree-vect.h"
