[clang] [clang] Add tests for some CWG 5xx issues (PR #87909)
Vlad Serebrennikov via cfe-commits
cfe-commits at lists.llvm.org
Mon Apr 8 02:19:03 PDT 2024
https://github.com/Endilll updated https://github.com/llvm/llvm-project/pull/87909
>From 222f444f91d477bbc1ab2657a7f820740031f765 Mon Sep 17 00:00:00 2001
From: Vlad Serebrennikov <serebrennikov.vladislav at gmail.com>
Date: Sun, 7 Apr 2024 10:52:10 +0300
Subject: [PATCH 1/2] [clang] Add tests for some CWG 5xx issues
---
clang/test/CXX/drs/dr15xx.cpp | 2 +-
clang/test/CXX/drs/dr19xx.cpp | 2 +-
clang/test/CXX/drs/dr3xx.cpp | 12 ++++++++++++
clang/test/CXX/drs/dr5xx.cpp | 37 +++++++++++++++++++++++++++++++++++
clang/www/cxx_dr_status.html | 16 +++++++--------
5 files changed, 59 insertions(+), 10 deletions(-)
diff --git a/clang/test/CXX/drs/dr15xx.cpp b/clang/test/CXX/drs/dr15xx.cpp
index 195c0fa610d579..6e3ad41c748fb1 100644
--- a/clang/test/CXX/drs/dr15xx.cpp
+++ b/clang/test/CXX/drs/dr15xx.cpp
@@ -555,7 +555,7 @@ auto DR1579_lambda_invalid = []() -> GenericMoveOnly<char> {
#endif
} // end namespace dr1579
-namespace dr1584 {
+namespace dr1584 { // dr1584: 7 drafting 2015-05
#if __cplusplus >= 201103L
// Deducing function types from cv-qualified types
template<typename T> void f(const T *); // #dr1584-f
diff --git a/clang/test/CXX/drs/dr19xx.cpp b/clang/test/CXX/drs/dr19xx.cpp
index 716b1476831ed9..f8c1581f08540e 100644
--- a/clang/test/CXX/drs/dr19xx.cpp
+++ b/clang/test/CXX/drs/dr19xx.cpp
@@ -34,7 +34,7 @@ namespace dr1902 { // dr1902: 3.7
#endif
}
-namespace dr1903 {
+namespace dr1903 { // dr1903: 2.7
namespace A {
struct a {};
int a;
diff --git a/clang/test/CXX/drs/dr3xx.cpp b/clang/test/CXX/drs/dr3xx.cpp
index 483ebf7a08aadb..6165835e2c183d 100644
--- a/clang/test/CXX/drs/dr3xx.cpp
+++ b/clang/test/CXX/drs/dr3xx.cpp
@@ -1568,6 +1568,18 @@ namespace dr391 { // dr391: 2.8 c++11
}
// dr392 is in dr392.cpp
+
+namespace dr393 { // dr393: 2.7
+
+template <typename T>
+struct S {};
+
+void f1(S<int (*)[]>);
+void f2(S<int (&)[]>);
+void g(int(*S<int>::*)[]);
+
+} // namespace dr393
+
// dr394: na
namespace dr395 { // dr395: 3.0
diff --git a/clang/test/CXX/drs/dr5xx.cpp b/clang/test/CXX/drs/dr5xx.cpp
index 426b368b390ae6..981b9d1afca970 100644
--- a/clang/test/CXX/drs/dr5xx.cpp
+++ b/clang/test/CXX/drs/dr5xx.cpp
@@ -18,6 +18,10 @@ namespace std {
void *operator new(size_t, std::align_val_t); // #dr5xx-global-operator-new-aligned
#endif
+namespace std {
+ struct type_info;
+}
+
namespace dr500 { // dr500: dup 372
class D;
class A {
@@ -265,6 +269,18 @@ namespace dr527 { // dr527: na
int ax = a.x, bx = b.x, cx = c.x, dx = d.x, ex = E::e->x, fx = F::f->x;
}
+namespace dr528 { // dr528: 2.7
+
+struct S; // #dr528-S
+
+void f() {
+ typeid(S);
+ // expected-error at -1 {{'typeid' of incomplete type 'S'}}
+ // expected-note@#dr528-S {{forward declaration of 'dr528::S'}}
+}
+
+} // namespace dr528
+
namespace dr530 { // dr530: yes
template<int*> struct S { enum { N = 1 }; };
template<void(*)()> struct T { enum { N = 1 }; };
@@ -618,6 +634,8 @@ namespace dr548 { // dr548: dup 482
template void dr548::f<int>();
}
+// dr550: dup 393
+
namespace dr551 { // dr551: yes c++11
// FIXME: This obviously should apply in C++98 mode too.
template<typename T> void f() {}
@@ -641,6 +659,7 @@ namespace dr552 { // dr552: yes
X<Y, 0> x;
}
+// dr553: 2.7
struct dr553_class {
friend void *operator new(size_t, dr553_class);
};
@@ -661,6 +680,10 @@ namespace dr553 {
}
// dr554: na
+
+// dr555: na
+// NB: name lookup cases that issue briefly touches are covered in our test for CWG466
+
// dr556: na
namespace dr557 { // dr557: 3.1
@@ -689,6 +712,20 @@ namespace dr558 { // dr558: 2.9
template<typename> struct dr559 { typedef int T; dr559::T u; }; // dr559: yes
+namespace dr560 { // dr560: 16
+
+template <class T>
+struct Outer {
+ struct Inner {
+ Inner* self();
+ };
+};
+template <class T>
+Outer<T>::Inner* Outer<T>::Inner::self() { return this; }
+// cxx98-17-error at -1 {{missing 'typename' prior to dependent type name Outer<T>::Inner; implicit 'typename' is a C++20 extension}}
+
+} // namespace dr560
+
namespace dr561 { // dr561: yes
template<typename T> void f(int);
template<typename T> void g(T t) {
diff --git a/clang/www/cxx_dr_status.html b/clang/www/cxx_dr_status.html
index a4c133c13c493f..15318bab81359b 100755
--- a/clang/www/cxx_dr_status.html
+++ b/clang/www/cxx_dr_status.html
@@ -2398,7 +2398,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/393.html">393</a></td>
<td>CD4</td>
<td>Pointer to array of unknown bound in template argument list in parameter</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="full" align="center">Clang 2.7</td>
</tr>
<tr id="394">
<td><a href="https://cplusplus.github.io/CWG/issues/394.html">394</a></td>
@@ -3208,7 +3208,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/528.html">528</a></td>
<td>NAD</td>
<td>Why are incomplete class types not allowed with <TT>typeid</TT>?</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="full" align="center">Clang 2.7</td>
</tr>
<tr class="open" id="529">
<td><a href="https://cplusplus.github.io/CWG/issues/529.html">529</a></td>
@@ -3342,7 +3342,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/550.html">550</a></td>
<td>dup</td>
<td>Pointer to array of unknown bound in parameter declarations</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="full" align="center">Duplicate of <a href="#393">393</a></td>
</tr>
<tr id="551">
<td><a href="https://cplusplus.github.io/CWG/issues/551.html">551</a></td>
@@ -3360,7 +3360,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/553.html">553</a></td>
<td>NAD</td>
<td>Problems with friend allocation and deallocation functions</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="full" align="center">Clang 2.7</td>
</tr>
<tr id="554">
<td><a href="https://cplusplus.github.io/CWG/issues/554.html">554</a></td>
@@ -3372,7 +3372,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/555.html">555</a></td>
<td>CD5</td>
<td>Pseudo-destructor name lookup</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="na" align="center">N/A</td>
</tr>
<tr id="556">
<td><a href="https://cplusplus.github.io/CWG/issues/556.html">556</a></td>
@@ -3402,7 +3402,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/560.html">560</a></td>
<td>NAD</td>
<td>Use of the <TT>typename</TT> keyword in return types</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="full" align="center">Clang 16</td>
</tr>
<tr id="561">
<td><a href="https://cplusplus.github.io/CWG/issues/561.html">561</a></td>
@@ -9312,7 +9312,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/1584.html">1584</a></td>
<td>drafting</td>
<td>Deducing function types from cv-qualified types</td>
- <td align="center">Not resolved</td>
+ <td title="Clang 7 implements 2015-05 resolution" align="center">Not Resolved*</td>
</tr>
<tr id="1585">
<td><a href="https://cplusplus.github.io/CWG/issues/1585.html">1585</a></td>
@@ -11226,7 +11226,7 @@ <h2 id="cxxdr">C++ defect report implementation status</h2>
<td><a href="https://cplusplus.github.io/CWG/issues/1903.html">1903</a></td>
<td>CD4</td>
<td>What declarations are introduced by a non-member <I>using-declaration</I>?</td>
- <td class="unknown" align="center">Unknown</td>
+ <td class="full" align="center">Clang 2.7</td>
</tr>
<tr id="1904">
<td><a href="https://cplusplus.github.io/CWG/issues/1904.html">1904</a></td>
>From 597d01431e43963d4181746ad207aaad13c39f20 Mon Sep 17 00:00:00 2001
From: Vlad Serebrennikov <serebrennikov.vladislav at gmail.com>
Date: Mon, 8 Apr 2024 12:18:12 +0300
Subject: [PATCH 2/2] Add more examples for CWG393
---
clang/test/CXX/drs/dr3xx.cpp | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/clang/test/CXX/drs/dr3xx.cpp b/clang/test/CXX/drs/dr3xx.cpp
index 6165835e2c183d..d5cfebccf8134b 100644
--- a/clang/test/CXX/drs/dr3xx.cpp
+++ b/clang/test/CXX/drs/dr3xx.cpp
@@ -1570,7 +1570,6 @@ namespace dr391 { // dr391: 2.8 c++11
// dr392 is in dr392.cpp
namespace dr393 { // dr393: 2.7
-
template <typename T>
struct S {};
@@ -1578,6 +1577,14 @@ void f1(S<int (*)[]>);
void f2(S<int (&)[]>);
void g(int(*S<int>::*)[]);
+template<typename T>
+void sp_assert_convertible( T* ) {}
+
+template<typename T, typename U>
+void h() {
+ T (*p) [] = (U(*)[])0;
+ sp_assert_convertible<T[]>( (U(*)[])0 );
+}
} // namespace dr393
// dr394: na
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