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diff --git a/clang/test/Analysis/bool-assignment2.c b/clang/test/Analysis/bool-assignment2.c
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+// RUN: %clang_cc1 -std=c99 -analyze -analyzer-checker=core,experimental.core.BoolAssignment -analyzer-store=region -verify %s
+
+// Test stdbool.h's _Bool
+
+// Prior to C99, stdbool.h uses this typedef, but even in ANSI C mode, _Bool
+// appears to be defined.
+
+// #if __STDC_VERSION__ < 199901L
+// typedef int _Bool;
+// #endif
+
+void test_stdbool_initialization(int y) {
+ if (y < 0) {
+ _Bool x = y; // expected-warning {{Assignment of a non-Boolean value}}
+ return;
+ }
+ if (y > 1) {
+ _Bool x = y; // expected-warning {{Assignment of a non-Boolean value}}
+ return;
+ }
+ _Bool x = y; // no-warning
+}
+
+void test_stdbool_assignment(int y) {
+ _Bool x = 0; // no-warning
+ if (y < 0) {
+ x = y; // expected-warning {{Assignment of a non-Boolean value}}
+ return;
+ }
+ if (y > 1) {
+ x = y; // expected-warning {{Assignment of a non-Boolean value}}
+ return;
+ }
+ x = y; // no-warning
+}