From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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.
---
 gcc/testsuite/gcc.dg/tree-ssa/vrp07.c | 39 +++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/vrp07.c

(limited to 'gcc/testsuite/gcc.dg/tree-ssa/vrp07.c')

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp07.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp07.c
new file mode 100644
index 000000000..6584919b5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp07.c
@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-vrp1-details" } */
+
+foo (int i, int *p)
+{
+  int j;
+
+  if (i > 10)
+    {
+      if (p)
+	{
+	  j = *p;
+	  /* This should be folded to if (1) because of the parent 'if
+	     (p)'.  But the dereference of p above does not need an
+	     assertion.  */
+	  if (p)
+	    return j + 1;
+	}
+    }
+  else
+    {
+      j = *p - 3;
+      /* This should be folded to if (0), because p has just been
+	 dereferenced.  But we were not inserting enough ASSERT_EXPRs
+	 to figure it out.  */
+      if (!p)
+	return j - 4;
+    }
+
+  return i;
+}
+/* Target with fno-delete-null-pointer-checks should not fold checks */
+/* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 1" 1 "vrp1" } } */
+/* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 0" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */
+/* { dg-final { scan-tree-dump-times "Folding predicate p_.*to 0" 0 "vrp1" { target {   keeps_null_pointer_checks } } } } */
+
+/* { dg-final { scan-tree-dump-times "PREDICATE: p_\[0-9\]" 2 "vrp1" { target { ! keeps_null_pointer_checks } } } } */
+/* { dg-final { scan-tree-dump-times "PREDICATE: p_\[0-9\]" 1 "vrp1" { target {   keeps_null_pointer_checks } } } } */
+/* { dg-final { cleanup-tree-dump "vrp1" } } */
-- 
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