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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/bool-11.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bool-11.c b/gcc/testsuite/gcc.dg/tree-ssa/bool-11.c
new file mode 100644
index 000000000..8d88b7e87
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/bool-11.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fdump-tree-optimized" } */
+
+int f(_Bool x)
+{
+ return (x == 0);
+}
+
+/* There should be no == 0 which is produced by the front-end as
+ bool_var == 0 is the same as !bool_var. */
+/* { dg-final { scan-tree-dump-times "== 0" 0 "optimized"} } */
+/* { dg-final { scan-tree-dump-times "!x" 1 "optimized"} } */
+
+/* { dg-final { cleanup-tree-dump "optimized" } } */