Fix -Wuninitialized regression involving functions invalidating parameters passed by reference.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135610 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/UninitializedValues.cpp b/lib/Analysis/UninitializedValues.cpp
index b84b430..67f0f67 100644
--- a/lib/Analysis/UninitializedValues.cpp
+++ b/lib/Analysis/UninitializedValues.cpp
@@ -441,8 +441,10 @@
// Record the last DeclRefExpr seen. This is an lvalue computation.
// We use this value to later detect if a variable "escapes" the analysis.
if (const VarDecl *vd = dyn_cast<VarDecl>(dr->getDecl()))
- if (isTrackedVar(vd))
+ if (isTrackedVar(vd)) {
+ ProcessUses();
lastDR = dr;
+ }
}
void TransferFunctions::VisitDeclStmt(DeclStmt *ds) {
diff --git a/test/SemaCXX/uninit-variables.cpp b/test/SemaCXX/uninit-variables.cpp
index a0180e3..a850a2f 100644
--- a/test/SemaCXX/uninit-variables.cpp
+++ b/test/SemaCXX/uninit-variables.cpp
@@ -66,6 +66,16 @@
return a; // expected-warning{{variable 'a' is uninitialized when used here}}
}
+// Test variables getting invalidated by function calls with reference arguments
+// *AND* there are multiple invalidated arguments.
+void test5_aux(int &, int &);
+
+int test5() {
+ int x, y;
+ test5_aux(x, y);
+ return x + y; // no-warning
+}
+
// This test previously crashed Sema.
class Rdar9188004A {
public:
