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[PATCH][BZ #18731] Fix runtime fails of AVX tests on non-AVX hardware
- From: Andrew Senkevich <andrew dot n dot senkevich at gmail dot com>
- To: libc-alpha <libc-alpha at sourceware dot org>
- Date: Wed, 29 Jul 2015 16:11:23 +0300
- Subject: [PATCH][BZ #18731] Fix runtime fails of AVX tests on non-AVX hardware
- Authentication-results: sourceware.org; auth=none
Hi,
this patch fixes fails of AVX vector math tests on non-AVX hardware
with addition of runtime checks.
2015-07-29 Andrew Senkevich <andrew.senkevich@intel.com>
[BZ #18731]
* sysdeps/x86_64/fpu/math-tests-arch.h: Added AVX runtime check.
* sysdeps/x86_64/fpu/test-double-vlen4.c: Likewise.
* sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise.
diff --git a/ChangeLog b/ChangeLog
index c753d5c..9a5e489 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2015-07-29 Andrew Senkevich <andrew.senkevich@intel.com>
+
+ [BZ #18731]
+ * sysdeps/x86_64/fpu/math-tests-arch.h: Added AVX runtime check.
+ * sysdeps/x86_64/fpu/test-double-vlen4.c: Likewise.
+ * sysdeps/x86_64/fpu/test-float-vlen8.c: Likewise.
+
2015-07-27 Mike Frysinger <vapier@gentoo.org>
* sysdeps/unix/sysv/linux/ia64/localplt.data: Delete __tls_get_addr.
diff --git a/sysdeps/x86_64/fpu/math-tests-arch.h
b/sysdeps/x86_64/fpu/math-tests-arch.h
index 56714f5..e8833bf 100644
--- a/sysdeps/x86_64/fpu/math-tests-arch.h
+++ b/sysdeps/x86_64/fpu/math-tests-arch.h
@@ -16,7 +16,29 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
-#if defined REQUIRE_AVX2
+#if defined REQUIRE_AVX
+# include <init-arch.h>
+
+/* Set to 1 if AVX supported. */
+static int avx_usable;
+
+# define INIT_ARCH_EXT \
+ do \
+ { \
+ __init_cpu_features (); \
+ avx_usable = __cpu_features.feature[index_AVX_Usable] \
+ & bit_AVX_Usable; \
+ } \
+ while (0)
+
+# define CHECK_ARCH_EXT \
+ do \
+ { \
+ if (!avx_usable) return; \
+ } \
+ while (0)
+
+#elif defined REQUIRE_AVX2
# include <init-arch.h>
/* Set to 1 if AVX2 supported. */
diff --git a/sysdeps/x86_64/fpu/test-double-vlen4.c
b/sysdeps/x86_64/fpu/test-double-vlen4.c
index 679397f..f081343 100644
--- a/sysdeps/x86_64/fpu/test-double-vlen4.c
+++ b/sysdeps/x86_64/fpu/test-double-vlen4.c
@@ -25,4 +25,6 @@
#define TEST_VECTOR_exp 1
#define TEST_VECTOR_pow 1
+#define REQUIRE_AVX
+
#include "libm-test.c"
diff --git a/sysdeps/x86_64/fpu/test-float-vlen8.c
b/sysdeps/x86_64/fpu/test-float-vlen8.c
index 581cbde..891e58f 100644
--- a/sysdeps/x86_64/fpu/test-float-vlen8.c
+++ b/sysdeps/x86_64/fpu/test-float-vlen8.c
@@ -25,4 +25,6 @@
#define TEST_VECTOR_expf 1
#define TEST_VECTOR_powf 1
+#define REQUIRE_AVX
+
#include "libm-test.c"
--
WBR,
Andrew