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, 35 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/pr44180.c b/gcc/testsuite/gcc.target/i386/pr44180.c
new file mode 100644
index 000000000..c327e94bb
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr44180.c
@@ -0,0 +1,35 @@
+/* { dg-do run } */
+/* { dg-require-effective-target avx } */
+/* { dg-options "-O2 -ftree-vectorize -mavx -mtune=generic" } */
+
+#include "avx-check.h"
+
+#define N 16
+
+float b[N] = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
+float c[N] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+float d[N] = {0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30};
+
+static void
+__attribute__ ((noinline))
+avx_test ()
+{
+  int i;
+  float a[N];
+
+  /* Strided access. Vectorizable on platforms that support load of strided 
+     accesses (extract of even/odd vector elements).  */
+  for (i = 0; i < N/2; i++)
+    {
+      a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i];
+      d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i];
+    }
+
+  /* Check results.  */
+  for (i = 0; i < N/2; i++)
+    {
+      if (a[i] != b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i]
+	  || d[i] != b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i])
+	abort();
+    }
+}