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-rw-r--r--gcc/testsuite/gcc.dg/ordered-comparison-1.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/ordered-comparison-1.c b/gcc/testsuite/gcc.dg/ordered-comparison-1.c
new file mode 100644
index 000000000..0131c9da8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/ordered-comparison-1.c
@@ -0,0 +1,21 @@
+/* Test warning for ordered comparison pointer with null pointer constant. */
+/* Tested with no warning option. */
+/* { dg-do compile } */
+/* { dg-options "" } */
+extern void z();
+void *p;
+
+void f() {
+ if (z >= 0)
+ z();
+ if (0 >= z)
+ z();
+ if (p >= (void*)0)
+ z();
+ if ((void*)0 >= p)
+ z();
+ if (z >= (void*)0) /* { dg-warning "distinct pointer types lacks a cast" } */
+ z();
+ if ((void*)0 >=z) /* { dg-warning "distinct pointer types lacks a cast" } */
+ z();
+}