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c4c35d9522
When resolving the type of `this` inside a member function, we were attaching all qualifiers present on the member function to the class type and then making it a pointer; however, `__restrict`, unlike `const` and `volatile`, needs to be attached to the pointer type rather than the pointee type. This fixes #82941, #42411, and #18121.
70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
// RUN: %clang_cc1 -verify -fsyntax-only %s
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// expected-no-diagnostics
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struct C {
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void f() __restrict {
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static_assert(__is_same(decltype(this), C *__restrict));
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(void) [this]() {
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static_assert(__is_same(decltype(this), C *__restrict));
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(void) [this]() { static_assert(__is_same(decltype(this), C *__restrict)); };
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// By-value capture means 'this' is now a different object; do not
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// make it __restrict.
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(void) [*this]() { static_assert(__is_same(decltype(this), const C *)); };
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(void) [*this]() mutable { static_assert(__is_same(decltype(this), C *)); };
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};
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}
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};
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template <typename T> struct TC {
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void f() __restrict {
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static_assert(__is_same(decltype(this), TC<int> *__restrict));
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(void) [this]() {
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static_assert(__is_same(decltype(this), TC<int> *__restrict));
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(void) [this]() { static_assert(__is_same(decltype(this), TC<int> *__restrict)); };
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// By-value capture means 'this' is now a different object; do not
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// make it __restrict.
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(void) [*this]() { static_assert(__is_same(decltype(this), const TC<int> *)); };
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(void) [*this]() mutable { static_assert(__is_same(decltype(this), TC<int> *)); };
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};
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}
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};
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void f() {
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TC<int>{}.f();
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}
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namespace gh18121 {
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struct Foo {
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void member() __restrict {
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Foo *__restrict This = this;
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}
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};
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}
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namespace gh42411 {
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struct foo {
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int v;
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void f() const __restrict {
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static_assert(__is_same(decltype((v)), const int&));
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(void) [this]() { static_assert(__is_same(decltype((v)), const int&)); };
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}
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};
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}
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namespace gh82941 {
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void f(int& x) {
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(void)x;
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}
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class C {
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int x;
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void g() __restrict;
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};
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void C::g() __restrict {
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f(this->x);
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}
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}
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