[analyzer] Malloc: Allow a pointer to escape through OSAtomicEnqueue.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153453 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Checkers/MallocChecker.cpp b/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
index 5eca917..7b9adb7 100644
--- a/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/MallocChecker.cpp
@@ -1257,7 +1257,8 @@
// this would be to implement a pointer escapes callback.
if (FName == "CVPixelBufferCreateWithBytes" ||
FName == "CGBitmapContextCreateWithData" ||
- FName == "CVPixelBufferCreateWithPlanarBytes") {
+ FName == "CVPixelBufferCreateWithPlanarBytes" ||
+ FName == "OSAtomicEnqueue") {
return false;
}
diff --git a/test/Analysis/malloc.mm b/test/Analysis/malloc.mm
index 4cb2cfa..fe14ede 100644
--- a/test/Analysis/malloc.mm
+++ b/test/Analysis/malloc.mm
@@ -106,3 +106,14 @@
myBlock(3);
}
+// Test that we handle pointer escaping through OSAtomicEnqueue.
+typedef volatile struct {
+ void *opaque1;
+ long opaque2;
+} OSQueueHead;
+void OSAtomicEnqueue( OSQueueHead *__list, void *__new, size_t __offset) __attribute__((weak_import));
+static inline void radar11111210(OSQueueHead *pool) {
+ void *newItem = malloc(4);
+ OSAtomicEnqueue(pool, newItem, 4);
+}
+
