re PR tree-optimization/36318 (SRA pessimizes struct copies without -Os)

2009-06-05  Alexander Strange <astrange@ithinksw.com>

	PR tree-optimization/36318
	* gcc.dg/tree-ssa/sra-7.c: New test.

From-SVN: r148203

gcc/testsuite/ChangeLog

+2009-06-05  Alexander Strange <astrange@ithinksw.com>
+
+	PR tree-optimization/36318
+	* gcc.dg/tree-ssa/sra-7.c: New test.
+
 2009-06-04  Daniel Franke  <franke.daniel@gmail.com>
 
 	PR fortran/37203

gcc/testsuite/gcc.dg/tree-ssa/sra-7.c

+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+typedef struct { char f[4]; } __attribute__((aligned (4))) s;
+
+void a(s *s1, s *s2)
+{
+  *s1 = *s2;
+}
+
+/* Struct copies should not be split into members.  */
+/* { dg-final { scan-tree-dump "\\\*s1_.\\\(D\\\) = \\\*s2"  "optimized"} } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */