1 files changed, 29 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/sra-1.C b/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/sra-1.C
new file mode 100644
index 000000000..e3e3918eb
--- /dev/null
+++ b/gcc-4.9/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;
+}