gcc/

	PR tree-optimization/20913
	* tree-ssa-copy.c (copy_prop_visit_cond_stmt): Fold COND_EXPR.

testsuite/
	PR tree-optimization/20913
	* gcc.dg/tree-ssa/pr20913.c: New.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@98091 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 28 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 00000000000..c6f1ae6654f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr20702.c
@@ -0,0 +1,28 @@
+/* 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-vrp-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;
+}
+
+/* { dg-final { scan-tree-dump-times "Folding predicate" 1 "vrp"} } */