[clang] [clang][analyzer] Detect use-after-move for 3-arg std::move (PR #196602)

[Balázs Benics via cfe-commits]

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@@ -0,0 +1,29 @@
+// RUN: %clang_analyze_cc1 -std=c++17 -analyzer-checker=core,cplusplus.Move,alpha.cplusplus.IteratorModeling -analyzer-config aggressive-binary-operation-simplification=true -analyzer-config c++-container-inlining=false %s -verify -analyzer-config display-checker-name=false
+
+#include "Inputs/system-header-simulator-cxx.h"
+
+
+//===----------------------------------------------------------------------===//
+// Test suite for test functions that require both MoveChecker.cpp and
+// IteratorModeling.cpp to be enabled.
+// NOTE: Currently the iterator dereference detection is only working when
+// IteratorModeling is enabled.
+//===----------------------------------------------------------------------===//
+
+void iteratorDerefSource() {
+  std::list<std::string> l1;
+  l1.push_back("l1");
+  std::list<std::string> l2;
+
+  std::move(l1.begin(), l1.end(), std::back_inserter(l2));
+  *l1.cbegin(); // expected-warning {{Method called on moved-from object 'l1'}}
+}
+
+void iteratorDerefDest() {
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steakhal wrote:

Can we demonstrate that this works on other containers too? such as vector for example?
Can we also test associative containers, such as std::map?

https://github.com/llvm/llvm-project/pull/196602