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, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20030807-5.c b/gcc/testsuite/gcc.dg/tree-ssa/20030807-5.c
new file mode 100644
index 000000000..424b5583b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20030807-5.c
@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-dom2" } */
+
+extern void abort (void);
+struct rtx_def;
+typedef struct rtx_def *rtx;
+
+
+struct rtx_def
+{
+
+  int code;
+  unsigned int unchanging:1;
+
+};
+static rtx current_sym_addr;
+
+int
+foo ()
+{
+  if (current_sym_addr->code == 42
+      && (({
+	       rtx _rtx = current_sym_addr;
+	       if (((_rtx)->code) != 42)
+	         abort ();
+	       _rtx;}
+	   )->unchanging))
+    return 0;
+}
+
+/* There should be precisely one load of ->code.  If there is
+   more than, then the dominator optimizations failed.  */
+/* { dg-final { scan-tree-dump-times "->code" 1 "dom2"} } */
+
+/* There should be two IF statements.  One for 'current_sym_addr->code == 42'.
+   The other one for '(EXPR)->unchanging'.  */
+/* { dg-final { scan-tree-dump-times "if " 2 "dom2"} } */
+
+/* { dg-final { cleanup-tree-dump "dom2" } } */