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, 85 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect-93.c b/gcc/testsuite/gcc.dg/vect/vect-93.c
new file mode 100644
index 000000000..65403eb72
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-93.c
@@ -0,0 +1,85 @@
+/* { dg-require-effective-target vect_float } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 3001
+
+
+__attribute__ ((noinline))
+main1 (float *pa)
+{
+  int i;
+
+  for (i = 0; i < 3001; i++)
+    {
+      pa[i] = 2.0;
+    }
+
+  /* check results:  */
+  for (i = 0; i < 3001; i++)
+    {
+      if (pa[i] != 2.0)
+	abort ();
+    }
+
+  for (i = 1; i <= 10; i++)
+    {
+      pa[i] = 3.0;
+    }
+
+  /* check results:  */
+  for (i = 1; i <= 10; i++)
+    {
+      if (pa[i] != 3.0)
+	abort ();
+    }
+  
+  return 0;
+}
+
+int main (void)
+{
+  int i;
+  float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+  float b[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__)));
+
+  check_vect ();
+
+  /* from bzip2: */
+  for (i=0; i<N; i++) b[i] = i;
+  a[0] = 0;
+  for (i = 1; i <= 256; i++) a[i] = b[i-1];
+
+  /* check results:  */
+  for (i = 1; i <= 256; i++)
+    {
+      if (a[i] != i-1)
+	abort ();
+    }
+  if (a[0] != 0)
+    abort ();
+
+  main1 (a);
+
+  return 0;
+}
+
+/* 2 loops vectorized in main1, 2 loops vectorized in main:
+   the first loop in main requires vectorization of conversions,
+   the second loop in main requires vectorization of misaligned load.  */
+
+/* main && main1 together: */
+/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 2 "vect" { target powerpc*-*-* i?86-*-* x86_64-*-* } } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 2 "vect" { target { vect_no_align && {! vector_alignment_reachable} } } } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 3 "vect" { xfail { { vect_no_align } || { { ! vector_alignment_reachable} || vect_element_align } } } } } */
+
+/* in main1: */
+/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { target !powerpc*-*-* !i?86-*-* !x86_64-*-* } } } */
+/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" { target vect_no_align } } } */
+
+/* in main: */
+/* { dg-final { scan-tree-dump-times "vectorized 0 loops" 1 "vect" { target vect_no_align } } } */
+/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { vect_no_align } } } } */
+
+/* { dg-final { cleanup-tree-dump "vect" } } */