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-rw-r--r--gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c b/gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c
new file mode 100644
index 000000000..aadf32e21
--- /dev/null
+++ b/gcc-4.4.0/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-21.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-fre" } */
+
+struct f {
+ float a;
+ float b;
+ float c;
+ float d;
+};
+
+struct f a;
+
+void h(float, float, float, float);
+
+void g(void)
+{
+ float a1 = a.a, b = a.b, c = a.c, d = a.d;
+ a.a = a1;
+ a.b = b;
+ a.c = c;
+ a.d = d;
+ h(a1, b, c, d);
+}
+
+/* { dg-final { scan-tree-dump-not "a\\\.? = " "fre" } } */
+/* { dg-final { cleanup-tree-dump "fre" } } */