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-rw-r--r--test/Analysis/live-variables.m24
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Analysis/live-variables.m b/test/Analysis/live-variables.m
new file mode 100644
index 0000000..eefd292
--- /dev/null
+++ b/test/Analysis/live-variables.m
@@ -0,0 +1,24 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core -fobjc-arc -verify %s
+// expected-no-diagnostics
+@interface NSObject
+@end
+@interface NSString : NSObject
+- (id)lastPathComponent;
+@end
+int getBool();
+int *getPtr();
+int foo() {
+ int r = 0;
+ NSString *filename = @"filename";
+ for (int x = 0; x< 10; x++) {
+ int *p = getPtr();
+ // Liveness info is not computed correctly due to the following expression.
+ // This happens due to CFG being special cased for short circuit operators.
+ // Note, due to ObjC method call, the outermost logical operator is wrapped in ExprWithCleanups.
+ // PR18159
+ if ((p != 0) && (getBool()) && ([filename lastPathComponent]) && (getBool())) {
+ r = *p; // no-warning
+ }
+ }
+ return r;
+} \ No newline at end of file
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