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, 70 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/opt/20050511-1.C b/gcc/testsuite/g++.dg/opt/20050511-1.C
new file mode 100644
index 000000000..a8929030a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/20050511-1.C
@@ -0,0 +1,70 @@
+/* { dg-do run } */
+/* { dg-options "-w" } */
+/* { dg-options "-O3 -w" { target powerpc*-*-* } } */
+#include <stdio.h>
+#include <stdlib.h>
+
+// The VxWorks kernel headers define their own UINT32
+#if defined __vxworks && !defined __RTP__
+#define UINT32 my_UINT32
+#endif
+
+typedef signed short SINT16 ;
+typedef unsigned long UINT32 ;
+typedef unsigned int UINT ;
+
+class A
+{
+public:
+    union   
+    {
+      SINT16 xy[2];
+      UINT32 abXY;
+    };
+  bool operator==(const A& other) const {return abXY == other.abXY;}
+  bool operator!=(const A& other) const {return abXY != other.abXY;}
+};
+
+template <int size> struct pArray { unsigned char u08[16*(((size*1)+15)/16)] __attribute__ ((aligned(16))); };
+
+struct B
+{
+  union {
+    A mvL[2];
+    pArray<1> xyz;
+  };
+} ;
+
+typedef struct
+{
+  UINT w;
+  B b;
+
+}C;
+
+
+UINT32 bar (const C * sPtr)
+{
+  UINT w = sPtr->w;
+  A a;
+
+  a.xy[0] = sPtr->b.mvL[w].xy[0]<<2;
+  a.xy[1] = sPtr->b.mvL[w].xy[1]<<2;
+
+  if (a.xy[0] != ((SINT16) 0xffff << 2))
+	abort ();
+}
+
+int main()
+{
+	A a;
+	C c;
+	a.xy[0] = 0xffff;
+	a.xy[1] = 0xffff;
+	c.w=0;
+	c.b.mvL[0].xy[0] = a.xy[0];
+	c.b.mvL[0].xy[1] = a.xy[1];
+
+	bar (&c);
+}
+