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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/structopt-1.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/structopt-1.c b/gcc/testsuite/gcc.dg/tree-ssa/structopt-1.c
new file mode 100644
index 00000000000..bc69c4fe0d7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/structopt-1.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-lim-details" } */
+int x; int y;
+struct { int x; int y; } global;
+int foo() {
+ int i;
+ for ( i=0; i<10; i++)
+ y += x*x;
+ for ( i=0; i<10; i++)
+ global.y += global.x*global.x;
+}
+
+/* { dg-final { scan-tree-dump-times "Executing store motion of global.y" 1 "lim" } } */
+/* XXX: We should also check for the load motion of global.x, but there is no easy way to do this. */
+/* { dg-final { cleanup-tree-dump "lim" } } */