This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG5df593a35471: [Sema] cast to CXXRecordDecl correctly when
diag a default comparison method (authored by HerrCai0907).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D151365/new/
https://reviews.llvm.org/D151365
Files:
clang/docs/ReleaseNotes.rst
clang/lib/Sema/SemaTemplateInstantiate.cpp
clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
clang/test/SemaCXX/cxx20-default-compare.cpp
Index: clang/test/SemaCXX/cxx20-default-compare.cpp
===================================================================
--- /dev/null
+++ clang/test/SemaCXX/cxx20-default-compare.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 %s -std=c++23 -verify -Wfloat-equal
+
+struct Foo {
+ float val;
+ bool operator==(const Foo &) const;
+ friend bool operator==(const Foo &, const Foo &);
+ friend bool operator==(Foo, Foo );
+};
+
+// Declare the defaulted comparison function as a member function.
+bool Foo::operator==(const Foo &) const = default; // expected-warning
{{comparing floating point with == or != is unsafe}} expected-note {{in
defaulted equality comparison operator for 'Foo' first required here}}
+
+// Declare the defaulted comparison function as a non-member function.
+bool operator==(const Foo &, const Foo &) = default; // expected-warning
{{comparing floating point with == or != is unsafe}} expected-note {{in
defaulted equality comparison operator for 'Foo' first required here}}
+
+// Declare the defaulted comparison function as a non-member function.
Arguments are passed by value.
+bool operator==(Foo, Foo) = default; // expected-warning {{comparing floating
point with == or != is unsafe}} expected-note {{in defaulted equality
comparison operator for 'Foo' first required here}}
Index: clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
===================================================================
--- clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
+++ clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
@@ -227,5 +227,5 @@
A a;
std::strong_ordering operator<=>(const B&) const = default; //
expected-error {{call to deleted constructor of 'A'}}
};
- bool x = B() < B(); // expected-note {{in defaulted three-way comparison
operator for 'Preference::B' first required here}}
+ bool x = B() < B(); // expected-note {{in defaulted three-way comparison
operator for 'B' first required here}}
}
Index: clang/lib/Sema/SemaTemplateInstantiate.cpp
===================================================================
--- clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -961,11 +961,13 @@
<< MD->isExplicitlyDefaulted() << DFK.asSpecialMember()
<< Context.getTagDeclType(MD->getParent());
} else if (DFK.isComparison()) {
+ QualType RecordType = FD->getParamDecl(0)
+ ->getType()
+ .getNonReferenceType()
+ .getUnqualifiedType();
Diags.Report(Active->PointOfInstantiation,
diag::note_comparison_synthesized_at)
- << (int)DFK.asComparison()
- << Context.getTagDeclType(
- cast<CXXRecordDecl>(FD->getLexicalDeclContext()));
+ << (int)DFK.asComparison() << RecordType;
}
break;
}
Index: clang/docs/ReleaseNotes.rst
===================================================================
--- clang/docs/ReleaseNotes.rst
+++ clang/docs/ReleaseNotes.rst
@@ -445,6 +445,9 @@
(`#62789 <https://github.com/llvm/llvm-project/issues/62789>`_).
- Fix a crash when instantiating a non-type template argument in a dependent
scope.
(`#62533 <https://github.com/llvm/llvm-project/issues/62533>`_).
+- Fix crash when diagnosing default comparison method.
+ (`#62791 <https://github.com/llvm/llvm-project/issues/62791>`_) and
+ (`#62102 <https://github.com/llvm/llvm-project/issues/62102>`_).
Bug Fixes to Compiler Builtins
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Index: clang/test/SemaCXX/cxx20-default-compare.cpp
===================================================================
--- /dev/null
+++ clang/test/SemaCXX/cxx20-default-compare.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 %s -std=c++23 -verify -Wfloat-equal
+
+struct Foo {
+ float val;
+ bool operator==(const Foo &) const;
+ friend bool operator==(const Foo &, const Foo &);
+ friend bool operator==(Foo, Foo );
+};
+
+// Declare the defaulted comparison function as a member function.
+bool Foo::operator==(const Foo &) const = default; // expected-warning {{comparing floating point with == or != is unsafe}} expected-note {{in defaulted equality comparison operator for 'Foo' first required here}}
+
+// Declare the defaulted comparison function as a non-member function.
+bool operator==(const Foo &, const Foo &) = default; // expected-warning {{comparing floating point with == or != is unsafe}} expected-note {{in defaulted equality comparison operator for 'Foo' first required here}}
+
+// Declare the defaulted comparison function as a non-member function. Arguments are passed by value.
+bool operator==(Foo, Foo) = default; // expected-warning {{comparing floating point with == or != is unsafe}} expected-note {{in defaulted equality comparison operator for 'Foo' first required here}}
Index: clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
===================================================================
--- clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
+++ clang/test/CXX/class/class.compare/class.spaceship/p1.cpp
@@ -227,5 +227,5 @@
A a;
std::strong_ordering operator<=>(const B&) const = default; // expected-error {{call to deleted constructor of 'A'}}
};
- bool x = B() < B(); // expected-note {{in defaulted three-way comparison operator for 'Preference::B' first required here}}
+ bool x = B() < B(); // expected-note {{in defaulted three-way comparison operator for 'B' first required here}}
}
Index: clang/lib/Sema/SemaTemplateInstantiate.cpp
===================================================================
--- clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -961,11 +961,13 @@
<< MD->isExplicitlyDefaulted() << DFK.asSpecialMember()
<< Context.getTagDeclType(MD->getParent());
} else if (DFK.isComparison()) {
+ QualType RecordType = FD->getParamDecl(0)
+ ->getType()
+ .getNonReferenceType()
+ .getUnqualifiedType();
Diags.Report(Active->PointOfInstantiation,
diag::note_comparison_synthesized_at)
- << (int)DFK.asComparison()
- << Context.getTagDeclType(
- cast<CXXRecordDecl>(FD->getLexicalDeclContext()));
+ << (int)DFK.asComparison() << RecordType;
}
break;
}
Index: clang/docs/ReleaseNotes.rst
===================================================================
--- clang/docs/ReleaseNotes.rst
+++ clang/docs/ReleaseNotes.rst
@@ -445,6 +445,9 @@
(`#62789 <https://github.com/llvm/llvm-project/issues/62789>`_).
- Fix a crash when instantiating a non-type template argument in a dependent scope.
(`#62533 <https://github.com/llvm/llvm-project/issues/62533>`_).
+- Fix crash when diagnosing default comparison method.
+ (`#62791 <https://github.com/llvm/llvm-project/issues/62791>`_) and
+ (`#62102 <https://github.com/llvm/llvm-project/issues/62102>`_).
Bug Fixes to Compiler Builtins
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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