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-rw-r--r--test/Analysis/inlining/false-positive-suppression.m38
1 files changed, 38 insertions, 0 deletions
diff --git a/test/Analysis/inlining/false-positive-suppression.m b/test/Analysis/inlining/false-positive-suppression.m
new file mode 100644
index 0000000000000..53ec138367ebc
--- /dev/null
+++ b/test/Analysis/inlining/false-positive-suppression.m
@@ -0,0 +1,38 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-config suppress-null-return-paths=false -verify %s
+// RUN: %clang_cc1 -analyze -analyzer-checker=core -verify -DSUPPRESSED=1 %s
+// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-config avoid-suppressing-null-argument-paths=true -DSUPPRESSED=1 -DNULL_ARGS=1 -verify %s
+
+#ifdef SUPPRESSED
+// expected-no-diagnostics
+#endif
+
+@interface PointerWrapper
+- (int *)getPtr;
+- (id)getObject;
+@end
+
+id getNil() {
+ return 0;
+}
+
+void testNilReceiverHelperA(int *x) {
+ *x = 1;
+#ifndef SUPPRESSED
+ // expected-warning@-2 {{Dereference of null pointer}}
+#endif
+}
+
+void testNilReceiverHelperB(int *x) {
+ *x = 1;
+#ifndef SUPPRESSED
+ // expected-warning@-2 {{Dereference of null pointer}}
+#endif
+}
+
+void testNilReceiver(int coin) {
+ id x = getNil();
+ if (coin)
+ testNilReceiverHelperA([x getPtr]);
+ else
+ testNilReceiverHelperB([[x getObject] getPtr]);
+}