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, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/tree-ssa/sra-1.C b/gcc/testsuite/g++.dg/tree-ssa/sra-1.C
new file mode 100644
index 000000000..e3e3918eb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/tree-ssa/sra-1.C
@@ -0,0 +1,29 @@
+/* https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=223576 */
+
+/* SRA failed to canonicalize bit-field types, introducing type
+   mismatches.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+struct A
+{
+  int a:16;
+  /* These dummy bit-fields are here to prevent GCC 4.2+ from merging
+     the bit-field compares into a single word compare, which disables
+     SRA.  */
+  int a2:16;
+  int a3:16;
+  int a4:16;
+  int b:8;
+  bool operator==(A const x) const
+  {
+    return (this->a == x.a && this->b == x.b);
+  }
+};
+
+bool
+foo (A const x, A const y)
+{
+  return x == y;
+}