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, 31 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr49039.c b/gcc/testsuite/gcc.dg/tree-ssa/pr49039.c
new file mode 100644
index 000000000..3500dbf2a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr49039.c
@@ -0,0 +1,31 @@
+/* PR tree-optimization/49039 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-vrp1" } */
+
+extern void bar (void);
+
+void
+foo (unsigned int x, unsigned int y)
+{
+  unsigned int minv, maxv;
+  if (x >= 3 && x <= 6)
+    return;
+  if (y >= 5 && y <= 8)
+    return;
+  minv = x < y ? x : y;
+  maxv = x > y ? x : y;
+  if (minv == 5)
+    bar ();
+  if (minv == 6)
+    bar ();
+  if (maxv == 5)
+    bar ();
+  if (maxv == 6)
+    bar ();
+}
+
+/* { dg-final { scan-tree-dump "Folding predicate minv_\[0-9\]* == 5 to 0" "vrp1" } } */
+/* { dg-final { scan-tree-dump "Folding predicate minv_\[0-9\]* == 6 to 0" "vrp1" } } */
+/* { dg-final { scan-tree-dump "Folding predicate maxv_\[0-9\]* == 5 to 0" "vrp1" } } */
+/* { dg-final { scan-tree-dump "Folding predicate maxv_\[0-9\]* == 6 to 0" "vrp1" } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */