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/pr20702.c b/gcc/testsuite/gcc.dg/tree-ssa/pr20702.c
new file mode 100644
index 000000000..ce62fa3f0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr20702.c
@@ -0,0 +1,31 @@
+/* PR tree-optimization/20702
+   VRP did not insert ASSERT_EXPRs into dominator dominator children
+   of a basic block ending with COND_EXPR unless the children are also
+   immediate successors of the basic block.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-tree-dominator-opts -fdump-tree-vrp1-details" } */
+
+extern void bar (int);
+
+int
+foo (int *p, int b)
+{
+  int a;
+
+  if (b)
+    bar (123);
+  else
+    bar (321);
+
+  a = *p;
+  if (p == 0)
+    return 0;
+
+  return a;
+}
+
+/* Target with fno-delete-null-pointer-checks should not fold checks */
+/* { dg-final { scan-tree-dump-times "Folding predicate" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */
+/* { dg-final { scan-tree-dump-times "Folding predicate" 0 "vrp1" { target {   keeps_null_pointer_checks } } } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */