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Revert "Emit strong definition for TypeID storage in Op/Type/Attributes definition" 

This reverts commit 660a56956c.

This broke the GCC5 build
This commit is contained in:
Mehdi Amini 2021-07-28 21:06:54 +00:00
parent f8479d9de5
commit 6e9e4b5a6a
4 changed files with 43 additions and 99 deletions
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19
mlir/include/mlir/Support/TypeID.h
View File

@ -137,25 +137,6 @@ TypeID TypeID::get() {
} // end namespace mlir
// Declare/define an explicit specialization for TypeID: this forces the
// compiler to emit a strong definition for a class and controls which
// translation unit and shared object will actually have it.
// This can be useful to turn to a link-time failure what would be in other
// circumstances a hard-to-catch runtime bug when a TypeID is hidden in two
// different shared libraries and instances of the same class only gets the same
// TypeID inside a given DSO.
#define DECLARE_EXPLICIT_TYPE_ID(CLASS_NAME) \
template <> \
LLVM_EXTERNAL_VISIBILITY mlir::TypeID \
mlir::detail::TypeIDExported::get<CLASS_NAME>();
#define DEFINE_EXPLICIT_TYPE_ID(CLASS_NAME) \
template <> \
LLVM_EXTERNAL_VISIBILITY mlir::TypeID \
mlir::detail::TypeIDExported::get<CLASS_NAME>() { \
static mlir::TypeID::Storage instance; \
return mlir::TypeID(&instance); \
}
namespace llvm {
template <> struct DenseMapInfo<mlir::TypeID> {
static mlir::TypeID getEmptyKey() {

17
mlir/tools/mlir-tblgen/AttrOrTypeDefGen.cpp
View File

@ -440,7 +440,7 @@ bool DefGenerator::emitDecls(StringRef selectedDialect) {
collectAllDefs(selectedDialect, defRecords, defs);
if (defs.empty())
return false;
{
NamespaceEmitter nsEmitter(os, defs.front().getDialect());
// Declare all the def classes first (in case they reference each other).
@ -450,14 +450,6 @@ bool DefGenerator::emitDecls(StringRef selectedDialect) {
// Emit the declarations.
for (const AttrOrTypeDef &def : defs)
emitDefDecl(def);
}
// Emit the TypeID explicit specializations to have a single definition for
// each of these.
for (const AttrOrTypeDef &def : defs)
if (!def.getDialect().getCppNamespace().empty())
os << "DECLARE_EXPLICIT_TYPE_ID(" << def.getDialect().getCppNamespace()
<< "::" << def.getCppClassName() << ")\n";
return false;
}
@ -942,13 +934,8 @@ bool DefGenerator::emitDefs(StringRef selectedDialect) {
IfDefScope scope("GET_" + defTypePrefix.upper() + "DEF_CLASSES", os);
emitParsePrintDispatch(defs);
for (const AttrOrTypeDef &def : defs) {
for (const AttrOrTypeDef &def : defs)
emitDefDef(def);
// Emit the TypeID explicit specializations to have a single symbol def.
if (!def.getDialect().getCppNamespace().empty())
os << "DEFINE_EXPLICIT_TYPE_ID(" << def.getDialect().getCppNamespace()
<< "::" << def.getCppClassName() << ")\n";
}
return false;
}

13
mlir/tools/mlir-tblgen/DialectGen.cpp
View File

@ -198,7 +198,6 @@ static void emitDialectDecl(Dialect &dialect,
}
// Emit all nested namespaces.
{
NamespaceEmitter nsEmitter(os, dialect);
// Emit the start of the decl.
@ -226,16 +225,11 @@ static void emitDialectDecl(Dialect &dialect,
os << regionResultAttrVerifierDecl;
if (dialect.hasOperationInterfaceFallback())
os << operationInterfaceFallbackDecl;
if (llvm::Optional<StringRef> extraDecl =
dialect.getExtraClassDeclaration())
if (llvm::Optional<StringRef> extraDecl = dialect.getExtraClassDeclaration())
os << *extraDecl;
// End the dialect decl.
os << "};\n";
}
if (!dialect.getCppNamespace().empty())
os << "DECLARE_EXPLICIT_TYPE_ID(" << dialect.getCppNamespace()
<< "::" << dialect.getCppClassName() << ")\n";
}
static bool emitDialectDecls(const llvm::RecordKeeper &recordKeeper,
@ -269,11 +263,6 @@ static const char *const dialectDestructorStr = R"(
)";
static void emitDialectDef(Dialect &dialect, raw_ostream &os) {
// Emit the TypeID explicit specializations to have a single symbol def.
if (!dialect.getCppNamespace().empty())
os << "DEFINE_EXPLICIT_TYPE_ID(" << dialect.getCppNamespace()
<< "::" << dialect.getCppClassName() << ")\n";
// Emit all nested namespaces.
NamespaceEmitter nsEmitter(os, dialect);

19
mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp
View File

@ -650,6 +650,7 @@ OpEmitter::OpEmitter(const Operator &op,
generateOpFormat(op, opClass);
genSideEffectInterfaceMethods();
}
void OpEmitter::emitDecl(
const Operator &op, raw_ostream &os,
const StaticVerifierFunctionEmitter &staticVerifierEmitter) {
@ -2575,30 +2576,16 @@ static void emitOpClasses(const RecordKeeper &recordKeeper,
emitDecl);
for (auto *def : defs) {
Operator op(*def);
if (emitDecl) {
{
NamespaceEmitter emitter(os, op.getCppNamespace());
os << formatv(opCommentHeader, op.getQualCppClassName(),
"declarations");
if (emitDecl) {
os << formatv(opCommentHeader, op.getQualCppClassName(), "declarations");
OpOperandAdaptorEmitter::emitDecl(op, os);
OpEmitter::emitDecl(op, os, staticVerifierEmitter);
}
// Emit the TypeID explicit specialization to have a single definition.
if (!op.getCppNamespace().empty())
os << "DECLARE_EXPLICIT_TYPE_ID(" << op.getCppNamespace()
<< "::" << op.getCppClassName() << ")\n\n";
} else {
{
NamespaceEmitter emitter(os, op.getCppNamespace());
os << formatv(opCommentHeader, op.getQualCppClassName(), "definitions");
OpOperandAdaptorEmitter::emitDef(op, os);
OpEmitter::emitDef(op, os, staticVerifierEmitter);
}
// Emit the TypeID explicit specialization to have a single definition.
if (!op.getCppNamespace().empty())
os << "DEFINE_EXPLICIT_TYPE_ID(" << op.getCppNamespace()
<< "::" << op.getCppClassName() << ")\n\n";
}
}
}