about summary refs log tree commit diff
path: root/sysdeps/x86_64/tst-avxmod.c
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2017-02-09 12:19:44 -0800
committerH.J. Lu <hjl.tools@gmail.com>2017-02-09 12:19:58 -0800
commit3403a17fea8ccef7dc5f99553a13231acf838744 (patch)
treeaebc6b60fec4cdddcf0587ed021cad7eb95598de /sysdeps/x86_64/tst-avxmod.c
parent1266b9361aaafb122d530efefa90381e44d5b88e (diff)
downloadglibc-3403a17fea8ccef7dc5f99553a13231acf838744.tar.gz
glibc-3403a17fea8ccef7dc5f99553a13231acf838744.tar.xz
glibc-3403a17fea8ccef7dc5f99553a13231acf838744.zip
x86-64: Verify that _dl_runtime_resolve preserves vector registers
On x86-64, _dl_runtime_resolve must preserve the first 8 vector
registers.  Add 3 _dl_runtime_resolve tests to verify that SSE,
AVX and AVX512 registers are preserved.

	* sysdeps/x86_64/Makefile (tests): Add tst-sse, tst-avx and
	tst-avx512.
	(test-extras): Add tst-avx-aux and tst-avx512-aux.
	(extra-test-objs): Add tst-avx-aux.o and tst-avx512-aux.o.
	(modules-names): Add tst-ssemod, tst-avxmod and tst-avx512mod.
	($(objpfx)tst-sse): New rule.
	($(objpfx)tst-avx): Likewise.
	($(objpfx)tst-avx512): Likewise.
	(CFLAGS-tst-avx-aux.c): New.
	(CFLAGS-tst-avxmod.c): Likewise.
	(CFLAGS-tst-avx512-aux.c): Likewise.
	(CFLAGS-tst-avx512mod.c): Likewise.
	* sysdeps/x86_64/tst-avx-aux.c: New file.
	* sysdeps/x86_64/tst-avx.c: Likewise.
	* sysdeps/x86_64/tst-avx512-aux.c: Likewise.
	* sysdeps/x86_64/tst-avx512.c: Likewise.
	* sysdeps/x86_64/tst-avx512mod.c: Likewise.
	* sysdeps/x86_64/tst-avxmod.c: Likewise.
	* sysdeps/x86_64/tst-sse.c: Likewise.
	* sysdeps/x86_64/tst-ssemod.c: Likewise.
Diffstat (limited to 'sysdeps/x86_64/tst-avxmod.c')
-rw-r--r--sysdeps/x86_64/tst-avxmod.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/x86_64/tst-avxmod.c b/sysdeps/x86_64/tst-avxmod.c
new file mode 100644
index 0000000000..6e5b154997
--- /dev/null
+++ b/sysdeps/x86_64/tst-avxmod.c
@@ -0,0 +1,48 @@
+/* Test case for x86-64 preserved AVX registers in dynamic linker.  */
+
+#ifdef __AVX__
+#include <stdlib.h>
+#include <string.h>
+#include <immintrin.h>
+
+__m256i
+avx_test (__m256i x0, __m256i x1, __m256i x2, __m256i x3,
+	  __m256i x4, __m256i x5, __m256i x6, __m256i x7)
+{
+  __m256i ymm;
+
+  ymm = _mm256_set1_epi32 (0);
+  if (memcmp (&ymm, &x0, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (1);
+  if (memcmp (&ymm, &x1, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (2);
+  if (memcmp (&ymm, &x2, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (3);
+  if (memcmp (&ymm, &x3, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (4);
+  if (memcmp (&ymm, &x4, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (5);
+  if (memcmp (&ymm, &x5, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (6);
+  if (memcmp (&ymm, &x6, sizeof (ymm)))
+    abort ();
+
+  ymm = _mm256_set1_epi32 (7);
+  if (memcmp (&ymm, &x7, sizeof (ymm)))
+    abort ();
+
+  return _mm256_set1_epi32 (0x12349876);
+}
+#endif