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

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7f4aa6b3b3afbc846cccbccae5f720ba8d592c9e..d7dadf21639ccba65897f21f574f0e6b27530e89 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+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

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/sra-7.c b/gcc/testsuite/gcc.dg/tree-ssa/sra-7.c
new file mode 100644 (file)
index 0000000..325a329
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/sra-7.c
@@ -0,0 +1,13 @@
+/* { 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" } } */