re PR middle-end/36445 (ICE in expand_expr_real_1 with -O1 with vector registers)

2008-09-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/36445
        * g++.dg/torture/pr36445.C: New test.

From-SVN: r139947

gcc/testsuite/ChangeLog

 2008-09-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
 
+	PR middle-end/36445
+	* g++.dg/torture/pr36445.C: New test.
+
+2008-09-03  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
 	PR middle-end/37293
 	* g++.dg/torture/ipa-cp-1.C: New test.
 

gcc/testsuite/g++.dg/torture/pr36445.C

+/* { dg-do compile } */
+// This used to fail as we would try to expand a VCE where one side had
+// a mode of BLKmode and the other side was a vector mode.
+#define vector __attribute__((vector_size(16) ))
+struct struct1  {
+  union { float a[3]; }    vmx;
+  struct struct2   {
+    struct2(const struct2& r) {}
+  } w;
+} __attribute__((aligned(16)));
+struct struct3  {
+  vector float vmx;
+  operator const struct1& () const{
+    return *reinterpret_cast<const struct1*>(this);
+  }
+};
+struct3 func3( struct3 V1);
+struct3 func2( void );
+void func1( )  {
+  struct1 vVec = func2() ;
+  func3 ( (struct3&)vVec );
+}