JonasToth created this revision.
JonasToth added reviewers: aaron.ballman, sammccall, rsmith.
Herald added subscribers: cfe-commits, dkrupp, donat.nagy, Szelethus,
a.sidorin, baloghadamsoftware.
Herald added a reviewer: george.karpenkov.
This patch adds two unit-tests that are the result of reducing a crashing TU
when running ExprMutAnalyzer over it. They are added only to ensure the
regression
that has been fixed with https://reviews.llvm.org/D56444 don't creep back.
Repository:
rC Clang
https://reviews.llvm.org/D56917
Files:
unittests/Analysis/ExprMutationAnalyzerTest.cpp
Index: unittests/Analysis/ExprMutationAnalyzerTest.cpp
===================================================================
--- unittests/Analysis/ExprMutationAnalyzerTest.cpp
+++ unittests/Analysis/ExprMutationAnalyzerTest.cpp
@@ -1109,4 +1109,48 @@
EXPECT_THAT(mutatedBy(Results, AST.get()), ElementsAre("x->mf()"));
}
+TEST(ExprMutationAnalyzerTest, ReproduceFailure11) {
+ const std::string Reproducer =
+ "namespace std {"
+ "template <class a> a&& forward(a & A) { return static_cast<a&&>(A); }"
+ "template <class _Fp> struct __bind {"
+ "_Fp d;"
+ "template <class e> __bind(_Fp f, e &&) : d(forward(f)) {}"
+ "};"
+ "template <class _Fp, class h> void bind(_Fp f, h && g) {"
+ "__bind<_Fp>(f, g);"
+ "}"
+ "template <typename i, typename j> void async(i f, j && g) {"
+ "bind(f, g);"
+ "}"
+ "}"
+ "void k() {"
+ "int x = 42;"
+ "std::async([] {}, x);"
+ "}";
+ auto AST11 = buildASTFromCodeWithArgs(Reproducer, {"-std=c++11"});
+ auto Results11 =
+ match(withEnclosingCompound(declRefTo("x")), AST11->getASTContext());
+ EXPECT_FALSE(isMutated(Results11, AST11.get()));
+}
+
+TEST(ExprMutationAnalyzerTest, ReproduceFailureMinimal) {
+ const std::string Reproducer =
+ "namespace std {"
+ "template <class T> T forward(T & A) { return static_cast<T&&>(A); }"
+ "template <class T> struct __bind {"
+ " T f;"
+ " template <class V> __bind(T v, V &&) : f(forward(v)) {}"
+ "};"
+ "}"
+ "void f() {"
+ " int x = 42;"
+ " auto Lambda = [] {};"
+ " std::__bind<decltype(Lambda)>(Lambda, x);"
+ "}";
+ auto AST11 = buildASTFromCodeWithArgs(Reproducer, {"-std=c++11"});
+ auto Results11 =
+ match(withEnclosingCompound(declRefTo("x")), AST11->getASTContext());
+ EXPECT_FALSE(isMutated(Results11, AST11.get()));
+}
} // namespace clang
Index: unittests/Analysis/ExprMutationAnalyzerTest.cpp
===================================================================
--- unittests/Analysis/ExprMutationAnalyzerTest.cpp
+++ unittests/Analysis/ExprMutationAnalyzerTest.cpp
@@ -1109,4 +1109,48 @@
EXPECT_THAT(mutatedBy(Results, AST.get()), ElementsAre("x->mf()"));
}
+TEST(ExprMutationAnalyzerTest, ReproduceFailure11) {
+ const std::string Reproducer =
+ "namespace std {"
+ "template <class a> a&& forward(a & A) { return static_cast<a&&>(A); }"
+ "template <class _Fp> struct __bind {"
+ "_Fp d;"
+ "template <class e> __bind(_Fp f, e &&) : d(forward(f)) {}"
+ "};"
+ "template <class _Fp, class h> void bind(_Fp f, h && g) {"
+ "__bind<_Fp>(f, g);"
+ "}"
+ "template <typename i, typename j> void async(i f, j && g) {"
+ "bind(f, g);"
+ "}"
+ "}"
+ "void k() {"
+ "int x = 42;"
+ "std::async([] {}, x);"
+ "}";
+ auto AST11 = buildASTFromCodeWithArgs(Reproducer, {"-std=c++11"});
+ auto Results11 =
+ match(withEnclosingCompound(declRefTo("x")), AST11->getASTContext());
+ EXPECT_FALSE(isMutated(Results11, AST11.get()));
+}
+
+TEST(ExprMutationAnalyzerTest, ReproduceFailureMinimal) {
+ const std::string Reproducer =
+ "namespace std {"
+ "template <class T> T forward(T & A) { return static_cast<T&&>(A); }"
+ "template <class T> struct __bind {"
+ " T f;"
+ " template <class V> __bind(T v, V &&) : f(forward(v)) {}"
+ "};"
+ "}"
+ "void f() {"
+ " int x = 42;"
+ " auto Lambda = [] {};"
+ " std::__bind<decltype(Lambda)>(Lambda, x);"
+ "}";
+ auto AST11 = buildASTFromCodeWithArgs(Reproducer, {"-std=c++11"});
+ auto Results11 =
+ match(withEnclosingCompound(declRefTo("x")), AST11->getASTContext());
+ EXPECT_FALSE(isMutated(Results11, AST11.get()));
+}
} // namespace clang
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