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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-4.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-4.c b/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-4.c
new file mode 100644
index 000000000..6e1cc50dc
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-4.c
@@ -0,0 +1,21 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-sink-stats" } */
+extern int foo (int *, int *);
+extern int foo2 (int);
+int
+main (int argc)
+{
+ int a, b, c;
+ b = argc + 1;
+ c = argc + 2;
+ a = b + c;
+ if (argc)
+ {
+ foo (&b, &c);
+ a = b + c;
+ }
+ foo2 (a);
+}
+/* We should sink the first a = b + c calculation into the else branch */
+/* { dg-final { scan-tree-dump-times "Sunk statements: 1" 1 "sink" } } */
+/* { dg-final { cleanup-tree-dump "sink" } } */