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, 27 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-sccvn-4.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-sccvn-4.c
new file mode 100644
index 000000000..7caf4eec6
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-sccvn-4.c
@@ -0,0 +1,27 @@
+/* { dg-do compile } */ 
+/* { dg-options "-O2 -fdump-tree-fre-stats" } */
+
+int vnum_test8(int *data) 
+{ 
+  int i; 
+  int stop = data[3]; 
+  int m = data[4]; 
+  int n = m; 
+  int p = 0;
+
+  for (i=0; i<stop; i++) { 
+    int k = data[2]; 
+    data[5] = 0;
+    if (i < 30)
+      data[5] = m - n;
+    p = data[5];
+    k = data[1]; 
+    m = m + k; 
+    n = n + k; 
+  } 
+  return p;
+} 
+/* We should eliminate m - n, n + k, set data[5] = 0, eliminate the
+   address arithmetic for data[5], and set p = 0.
+/* { dg-final { scan-tree-dump-times "Eliminated: 5" 1 "fre"} } */
+/* { dg-final { cleanup-tree-dump "fre" } } */