obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 56 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/avx-vzeroupper-1.c b/gcc/testsuite/gcc.target/i386/avx-vzeroupper-1.c
new file mode 100644
index 000000000..73ce795f3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx-vzeroupper-1.c
@@ -0,0 +1,56 @@
+/* { dg-do run } */
+/* { dg-require-effective-target avx } */
+/* { dg-options "-O2 -mavx -mtune=generic" } */
+
+#include "avx-check.h"
+
+#ifdef __x86_64__
+#define LEN 16
+#else
+#define LEN 8
+#endif
+
+static void
+avx_test (void)
+{
+  __m256i src;
+
+  char reg_save[LEN][32];
+  int i, j;
+
+  int s[8] = {1, 2, 3, 4, 5, 6, 7, 8};
+  int d[8] = {11, 22, 33, 44, 55, 66, 77, 88};
+
+  __builtin_memset (reg_save, -1, sizeof reg_save);
+
+  src = _mm256_loadu_si256 ((__m256i*) s);
+
+  _mm256_zeroupper (); 
+
+  __asm__ __volatile__ ("vmovdqu %%ymm0,%0":"=m"(reg_save[0]));
+  __asm__ __volatile__ ("vmovdqu %%ymm1,%0":"=m"(reg_save[1]));
+  __asm__ __volatile__ ("vmovdqu %%ymm2,%0":"=m"(reg_save[2]));
+  __asm__ __volatile__ ("vmovdqu %%ymm3,%0":"=m"(reg_save[3]));
+  __asm__ __volatile__ ("vmovdqu %%ymm4,%0":"=m"(reg_save[4]));
+  __asm__ __volatile__ ("vmovdqu %%ymm5,%0":"=m"(reg_save[5]));
+  __asm__ __volatile__ ("vmovdqu %%ymm6,%0":"=m"(reg_save[6]));
+  __asm__ __volatile__ ("vmovdqu %%ymm7,%0":"=m"(reg_save[7]));
+#ifdef __x86_64__
+  __asm__ __volatile__ ("vmovdqu %%ymm8,%0":"=m"(reg_save[8]));
+  __asm__ __volatile__ ("vmovdqu %%ymm9,%0":"=m"(reg_save[9]));
+  __asm__ __volatile__ ("vmovdqu %%ymm10,%0":"=m"(reg_save[10]));
+  __asm__ __volatile__ ("vmovdqu %%ymm11,%0":"=m"(reg_save[11]));
+  __asm__ __volatile__ ("vmovdqu %%ymm12,%0":"=m"(reg_save[12]));
+  __asm__ __volatile__ ("vmovdqu %%ymm13,%0":"=m"(reg_save[13]));
+  __asm__ __volatile__ ("vmovdqu %%ymm14,%0":"=m"(reg_save[14]));
+  __asm__ __volatile__ ("vmovdqu %%ymm15,%0":"=m"(reg_save[15]));
+#endif
+
+  for (i = 0; i < LEN; i++)
+    for (j = 16; j < 32; j++)
+      if (reg_save[i][j])
+        abort ();
+
+  _mm256_storeu_si256 ((__m256i*) d, src);
+
+}