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, 46 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr41123.c b/gcc/testsuite/gcc.dg/pr41123.c
new file mode 100644
index 000000000..076edb46e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr41123.c
@@ -0,0 +1,46 @@
+/* PR middle-end/41123 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fno-strict-aliasing" } */
+
+struct S { char a, b, c, d, e, f, g, h; };
+struct T { int a, b; };
+
+struct S
+f1 (float _Complex x)
+{
+  return *(struct S *) & x;
+}
+
+int
+f2 (float _Complex x)
+{
+  struct S f = f1 (x);
+  return f.b;
+}
+
+struct T
+f3 (float _Complex x)
+{
+  return *(struct T *) & x;
+}
+
+int
+f4 (float _Complex x)
+{
+  struct T f = f3 (x);
+  return f.a;
+}
+
+int
+f5 (float _Complex x)
+{
+  struct T f = f3 (x);
+  return f.b;
+}
+
+struct T
+f6 (float _Complex x)
+{
+  struct T f = f3 (x);
+  return f;
+}