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-rw-r--r--clang/test/Analysis/lambdas.cpp72
1 files changed, 72 insertions, 0 deletions
diff --git a/clang/test/Analysis/lambdas.cpp b/clang/test/Analysis/lambdas.cpp
index 10f6d559582..a906cedb3a9 100644
--- a/clang/test/Analysis/lambdas.cpp
+++ b/clang/test/Analysis/lambdas.cpp
@@ -90,6 +90,17 @@ void testReturnValue() {
clang_analyzer_eval(b == 8); // expected-warning{{TRUE}}
}
+void testAliasingBetweenParameterAndCapture() {
+ int i = 5;
+
+ auto l = [&i](int &p) {
+ i++;
+ p++;
+ };
+ l(i);
+ clang_analyzer_eval(i == 7); // expected-warning{{TRUE}}
+}
+
// Nested lambdas.
void testNestedLambdas() {
@@ -210,6 +221,67 @@ void captureConstants() {
}();
}
+void captureReferenceByCopy(int &p) {
+ int v = 7;
+ p = 8;
+
+ // p is a reference captured by copy
+ [&v,p]() mutable {
+ v = p;
+ p = 22;
+ }();
+
+ clang_analyzer_eval(v == 8); // expected-warning{{TRUE}}
+ clang_analyzer_eval(p == 8); // expected-warning{{TRUE}}
+}
+
+void captureReferenceByReference(int &p) {
+ int v = 7;
+ p = 8;
+
+ // p is a reference captured by reference
+ [&v,&p]() {
+ v = p;
+ p = 22;
+ }();
+
+ clang_analyzer_eval(v == 8); // expected-warning{{TRUE}}
+ clang_analyzer_eval(p == 22); // expected-warning{{TRUE}}
+}
+
+void callMutableLambdaMultipleTimes(int &p) {
+ int v = 0;
+ p = 8;
+
+ auto l = [&v, p]() mutable {
+ v = p;
+ p++;
+ };
+
+ l();
+
+ clang_analyzer_eval(v == 8); // expected-warning{{TRUE}}
+ clang_analyzer_eval(p == 8); // expected-warning{{TRUE}}
+
+ l();
+
+ clang_analyzer_eval(v == 9); // expected-warning{{TRUE}}
+ clang_analyzer_eval(p == 8); // expected-warning{{TRUE}}
+}
+
+// PR 24914
+struct StructPR24914{
+ int x;
+};
+
+void takesConstStructArgument(const StructPR24914&);
+void captureStructReference(const StructPR24914& s) {
+ [s]() {
+ takesConstStructArgument(s);
+ }();
+}
+
+
// CHECK: [B2 (ENTRY)]
// CHECK: Succs (1): B1
// CHECK: [B1]
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