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, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr19431.c b/gcc/testsuite/gcc.dg/tree-ssa/pr19431.c
new file mode 100644
index 000000000..1c87acbdd
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr19431.c
@@ -0,0 +1,29 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+/* We want this optimized as
+<bb 2>:
+  if (k != 0) goto <L2>; else goto <L3>;
+
+<L3>:;
+  i1 = j1;
+
+<L2>:;
+  return i1;
+
+  This requires that i1 and j1 are changed into registers after they
+  no longer have their address taken.  */
+
+int f(int k, int i1, int j1)
+{
+  int *f1;
+  if(k)
+   f1 = &i1;
+  else
+   f1 = &j1;
+  return *f1;
+}
+
+/* { dg-final { scan-tree-dump "i1_. = PHI <i1_\[^,\]*, j1_\[^>\]*>" "optimized" } } */
+/* { dg-final { scan-tree-dump "return i1_.;" "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */