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, 33 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ldist-11.c b/gcc/testsuite/gcc.dg/tree-ssa/ldist-11.c
new file mode 100644
index 000000000..88651e7b7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ldist-11.c
@@ -0,0 +1,33 @@
+/* { dg-do compile } */ 
+/* { dg-options "-O2 -ftree-loop-distribution -fdump-tree-ldist-all" } */
+
+void foo (int * __restrict__ ia,
+	  int * __restrict__ ib,
+	  int * __restrict__ oxa,
+	  int * __restrict__ oxb,
+	  int * __restrict__ oya,
+	  int * __restrict__ oyb)
+{
+  int i;
+  long int mya[52];
+  long int myb[52];
+
+  for (i=0; i < 52; i++)
+    {
+      mya[i] = ia[i] * oxa[i] + ib[i] * oxb[i];
+      myb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i];
+      oya[i] = 0;
+      oyb[i] = myb[i] >> 10;
+    }
+
+  /* This loop should be distributed, and the result should look like
+     this:
+     |  memset (oya, 0, 208);
+     |  for (i=0; i < 52; i++)
+     |    oyb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i] >> 10;
+  */
+}
+
+/* { dg-final { scan-tree-dump-times "distributed: split to 2 loops" 1 "ldist" } } */
+/* { dg-final { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */
+/* { dg-final { cleanup-tree-dump "ldist" } } */