Author: brunoricci
Date: Sat Feb 23 08:25:00 2019
New Revision: 354727
URL: http://llvm.org/viewvc/llvm-project?rev=354727&view=rev
Log:
[Sema][NFC] SequenceChecker: More tests in preparation for D57660
Modified:
cfe/trunk/test/SemaCXX/warn-unsequenced.cpp
Modified: cfe/trunk/test/SemaCXX/warn-unsequenced.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/warn-unsequenced.cpp?rev=354727&r1=354726&r2=354727&view=diff
==============================================================================
--- cfe/trunk/test/SemaCXX/warn-unsequenced.cpp (original)
+++ cfe/trunk/test/SemaCXX/warn-unsequenced.cpp Sat Feb 23 08:25:00 2019
@@ -1,5 +1,7 @@
-// RUN: %clang_cc1 -fsyntax-only -verify=cxx11 -std=c++11 -Wno-unused
-Wno-uninitialized -Wunsequenced %s
-// RUN: %clang_cc1 -fsyntax-only -verify=cxx17 -std=c++17 -Wno-unused
-Wno-uninitialized -Wunsequenced %s
+// RUN: %clang_cc1 -fsyntax-only -verify=cxx11 -std=c++11 -Wno-unused
-Wno-uninitialized \
+// RUN: -Wunsequenced -Wno-c++17-extensions -Wno-c++14-extensions %s
+// RUN: %clang_cc1 -fsyntax-only -verify=cxx17 -std=c++17 -Wno-unused
-Wno-uninitialized \
+// RUN: -Wunsequenced -Wno-c++17-extensions -Wno-c++14-extensions %s
int f(int, int = 0);
@@ -154,13 +156,11 @@ struct S1 {
unsigned bf2 : 2;
unsigned a;
unsigned b;
-
+ static unsigned x;
void member_f(S1 &s);
};
void S1::member_f(S1 &s) {
- int xs[10];
-
++a + ++a; // cxx11-warning {{multiple unsequenced modifications to 'a'}}
// cxx17-warning@-1 {{multiple unsequenced modifications to 'a'}}
a + ++a; // cxx11-warning {{unsequenced modification and access to 'a'}}
@@ -197,6 +197,25 @@ void S1::member_f(S1 &s) {
bf1 + ++s.bf1; // no-warning
++bf1 + ++s.bf2; // no-warning
bf1 + ++s.bf2; // no-warning
+
+ struct Der : S1 {};
+ Der d;
+ Der &d_ref = d;
+ S1 &s1_ref = d_ref;
+
+ ++s1_ref.a + ++d_ref.a; // no-warning TODO {{multiple unsequenced
modifications to member 'a' of 'd'}}
+ ++s1_ref.a + d_ref.a; // no-warning TODO {{unsequenced modification and
access to member 'a' of 'd'}}
+ ++s1_ref.a + ++d_ref.b; // no-warning
+ ++s1_ref.a + d_ref.b; // no-warning
+
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to 'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++s.x + x; // no-warning TODO {{unsequenced modification and access to
static member 'x' of 'S1'}}
+ ++this->x + x; // cxx11-warning {{unsequenced modification and access to
'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to
'x'}}
+ ++d_ref.x + ++S1::x; // no-warning TODO {{unsequenced modification and
access to static member 'x' of 'S1'}}
}
struct S2 {
@@ -319,6 +338,119 @@ void reference_f() {
}
} // namespace references
+namespace std {
+ using size_t = decltype(sizeof(0));
+ template<typename> struct tuple_size;
+ template<size_t, typename> struct tuple_element { using type = int; };
+}
+namespace bindings {
+
+ struct A { int x, y; };
+ typedef int B[2];
+ struct C { template<int> int get(); };
+ struct D : A {};
+
+} // namespace bindings
+template<> struct std::tuple_size<bindings::C> { enum { value = 2 }; };
+namespace bindings {
+void testa() {
+ A a;
+ {
+ auto [x, y] = a;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ ++x + ++a.x; // no-warning
+ ++x + a.x; // no-warning
+ }
+ {
+ auto &[x, y] = a;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ ++x + ++a.x; // no-warning TODO
+ ++x + a.x; // no-warning TODO
+ }
+}
+void testb() {
+ B b;
+ {
+ auto [x, y] = b;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ ++x + ++b[0]; // no-warning
+ ++x + b[0]; // no-warning
+ }
+ {
+ auto &[x, y] = b;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ ++x + ++b[0]; // no-warning TODO
+ ++x + b[0]; // no-warning TODO
+ }
+}
+void testc() {
+ C c;
+ {
+ auto [x, y] = c;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ }
+ {
+ auto &[x, y] = c;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ }
+}
+void testd() {
+ D d;
+ {
+ auto [x, y] = d;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ ++x + ++d.x; // no-warning
+ ++x + d.x; // no-warning
+ }
+ {
+ auto &[x, y] = d;
+ ++x + ++x; // cxx11-warning {{multiple unsequenced modifications to 'x'}}
+ // cxx17-warning@-1 {{multiple unsequenced modifications to
'x'}}
+ ++x + x; // cxx11-warning {{unsequenced modification and access to 'x'}}
+ // cxx17-warning@-1 {{unsequenced modification and access to 'x'}}
+ ++x + ++y; // no-warning
+ ++x + y; // no-warning
+ ++x + ++d.x; // no-warning TODO
+ ++x + d.x; // no-warning TODO
+ }
+}
+} // namespace bindings
+
namespace templates {
template <typename T>
@@ -377,4 +509,15 @@ int z = Run2<E>();
// cxx11-note@-1{{in instantiation of function template specialization
'templates::Run2<templates::E>' requested here}}
// cxx17-note@-2{{in instantiation of function template specialization
'templates::Run2<templates::E>' requested here}}
+template <typename T> int var = sizeof(T);
+void test_var() {
+ var<int>++ + var<int>++; // cxx11-warning {{multiple unsequenced
modifications to 'var<int>'}}
+ // cxx17-warning@-1 {{multiple unsequenced
modifications to 'var<int>'}}
+ var<int>++ + var<int>; // cxx11-warning {{unsequenced modification and
access to 'var<int>'}}
+ // cxx17-warning@-1 {{unsequenced modification and
access to 'var<int>'}}
+ int &r = var<int>;
+ r++ + var<int>++; // no-warning TODO {{multiple unsequenced modifications to
'var<int>'}}
+ r++ + var<long>++; // no-warning
}
+
+} // namespace templates
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