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, 23 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/uninit-pred-loop-1_c.cc b/gcc/testsuite/g++.dg/uninit-pred-loop-1_c.cc
new file mode 100644
index 000000000..7f6b41d31
--- /dev/null
+++ b/gcc/testsuite/g++.dg/uninit-pred-loop-1_c.cc
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-Wuninitialized -O2" } */
+
+extern int bar();
+int foo(int n, int m)
+{
+ for (;;) {
+   int err = ({int _err; 
+     for (int i = 0; i < 16; ++i) {
+       if (m+i > n)
+          break;
+       _err = 17;
+       _err = bar();
+     }
+     _err; 
+   }); 
+
+   if (err == 0) return 17; }); /* { dg-warning "uninitialized" "warn on _err" } */
+ }
+
+ return 18;
+}
+