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-rw-r--r--lib/Checker/OSAtomicChecker.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Checker/OSAtomicChecker.cpp b/lib/Checker/OSAtomicChecker.cpp
index e743528e23..44dcdd4230 100644
--- a/lib/Checker/OSAtomicChecker.cpp
+++ b/lib/Checker/OSAtomicChecker.cpp
@@ -100,7 +100,9 @@ bool OSAtomicChecker::EvalOSAtomicCompareAndSwap(CheckerContext &C,
const GRState *state = C.getState();
ExplodedNodeSet Tmp;
SVal location = state->getSVal(theValueExpr);
- // Here we should use the value type of the region as the load type.
+ // Here we should use the value type of the region as the load type, because
+ // we are simulating the semantics of the function, not the semantics of
+ // passing argument.
QualType LoadTy;
if (const TypedRegion *TR =
dyn_cast_or_null<TypedRegion>(location.getAsRegion())) {