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Apply a workaround to be able to build clang 8.0.0 headers with clang

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3.4.1, which is still in the stable/10 branch.

It looks like clang 3.4.1 implements static_asserts by instantiating a
temporary static object, and if those are in an anonymous union, it
results in "error: anonymous union can only contain non-static data
members".

To work around this implementation limitation, move the static_asserts
in question out of the anonymous unions.

This should make building the latest stable/11 from stable/10 possible
again.

Reported by:	Mike Tancsa <mike@sentex.net>
MFC after:	3 days
This commit is contained in:
Dimitry Andric 2019-07-10 05:57:37 +00:00
parent 2625e51956
commit 128c495e50
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=349876
2 changed files with 57 additions and 57 deletions
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46
contrib/llvm/tools/clang/include/clang/AST/DeclBase.h
View File

@ -1696,31 +1696,31 @@ class DeclContext {
ObjCContainerDeclBitfields ObjCContainerDeclBits;
LinkageSpecDeclBitfields LinkageSpecDeclBits;
BlockDeclBitfields BlockDeclBits;
static_assert(sizeof(DeclContextBitfields) <= 8,
"DeclContextBitfields is larger than 8 bytes!");
static_assert(sizeof(TagDeclBitfields) <= 8,
"TagDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(EnumDeclBitfields) <= 8,
"EnumDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(RecordDeclBitfields) <= 8,
"RecordDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(OMPDeclareReductionDeclBitfields) <= 8,
"OMPDeclareReductionDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(FunctionDeclBitfields) <= 8,
"FunctionDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(CXXConstructorDeclBitfields) <= 8,
"CXXConstructorDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(ObjCMethodDeclBitfields) <= 8,
"ObjCMethodDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(ObjCContainerDeclBitfields) <= 8,
"ObjCContainerDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(LinkageSpecDeclBitfields) <= 8,
"LinkageSpecDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(BlockDeclBitfields) <= 8,
"BlockDeclBitfields is larger than 8 bytes!");
};
static_assert(sizeof(DeclContextBitfields) <= 8,
"DeclContextBitfields is larger than 8 bytes!");
static_assert(sizeof(TagDeclBitfields) <= 8,
"TagDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(EnumDeclBitfields) <= 8,
"EnumDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(RecordDeclBitfields) <= 8,
"RecordDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(OMPDeclareReductionDeclBitfields) <= 8,
"OMPDeclareReductionDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(FunctionDeclBitfields) <= 8,
"FunctionDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(CXXConstructorDeclBitfields) <= 8,
"CXXConstructorDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(ObjCMethodDeclBitfields) <= 8,
"ObjCMethodDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(ObjCContainerDeclBitfields) <= 8,
"ObjCContainerDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(LinkageSpecDeclBitfields) <= 8,
"LinkageSpecDeclBitfields is larger than 8 bytes!");
static_assert(sizeof(BlockDeclBitfields) <= 8,
"BlockDeclBitfields is larger than 8 bytes!");
/// FirstDecl - The first declaration stored within this declaration
/// context.
mutable Decl *FirstDecl = nullptr;

68
contrib/llvm/tools/clang/include/clang/AST/Type.h
View File

@ -1720,42 +1720,42 @@ class Type : public ExtQualsTypeCommonBase {
DependentTemplateSpecializationTypeBitfields
DependentTemplateSpecializationTypeBits;
PackExpansionTypeBitfields PackExpansionTypeBits;
static_assert(sizeof(TypeBitfields) <= 8,
"TypeBitfields is larger than 8 bytes!");
static_assert(sizeof(ArrayTypeBitfields) <= 8,
"ArrayTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(AttributedTypeBitfields) <= 8,
"AttributedTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(AutoTypeBitfields) <= 8,
"AutoTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(BuiltinTypeBitfields) <= 8,
"BuiltinTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(FunctionTypeBitfields) <= 8,
"FunctionTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(ObjCObjectTypeBitfields) <= 8,
"ObjCObjectTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(ReferenceTypeBitfields) <= 8,
"ReferenceTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(TypeWithKeywordBitfields) <= 8,
"TypeWithKeywordBitfields is larger than 8 bytes!");
static_assert(sizeof(ElaboratedTypeBitfields) <= 8,
"ElaboratedTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(VectorTypeBitfields) <= 8,
"VectorTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(SubstTemplateTypeParmPackTypeBitfields) <= 8,
"SubstTemplateTypeParmPackTypeBitfields is larger"
" than 8 bytes!");
static_assert(sizeof(TemplateSpecializationTypeBitfields) <= 8,
"TemplateSpecializationTypeBitfields is larger"
" than 8 bytes!");
static_assert(sizeof(DependentTemplateSpecializationTypeBitfields) <= 8,
"DependentTemplateSpecializationTypeBitfields is larger"
" than 8 bytes!");
static_assert(sizeof(PackExpansionTypeBitfields) <= 8,
"PackExpansionTypeBitfields is larger than 8 bytes");
};
static_assert(sizeof(TypeBitfields) <= 8,
"TypeBitfields is larger than 8 bytes!");
static_assert(sizeof(ArrayTypeBitfields) <= 8,
"ArrayTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(AttributedTypeBitfields) <= 8,
"AttributedTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(AutoTypeBitfields) <= 8,
"AutoTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(BuiltinTypeBitfields) <= 8,
"BuiltinTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(FunctionTypeBitfields) <= 8,
"FunctionTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(ObjCObjectTypeBitfields) <= 8,
"ObjCObjectTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(ReferenceTypeBitfields) <= 8,
"ReferenceTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(TypeWithKeywordBitfields) <= 8,
"TypeWithKeywordBitfields is larger than 8 bytes!");
static_assert(sizeof(ElaboratedTypeBitfields) <= 8,
"ElaboratedTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(VectorTypeBitfields) <= 8,
"VectorTypeBitfields is larger than 8 bytes!");
static_assert(sizeof(SubstTemplateTypeParmPackTypeBitfields) <= 8,
"SubstTemplateTypeParmPackTypeBitfields is larger"
" than 8 bytes!");
static_assert(sizeof(TemplateSpecializationTypeBitfields) <= 8,
"TemplateSpecializationTypeBitfields is larger"
" than 8 bytes!");
static_assert(sizeof(DependentTemplateSpecializationTypeBitfields) <= 8,
"DependentTemplateSpecializationTypeBitfields is larger"
" than 8 bytes!");
static_assert(sizeof(PackExpansionTypeBitfields) <= 8,
"PackExpansionTypeBitfields is larger than 8 bytes");
private:
template <class T> friend class TypePropertyCache;