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llvm / llvm-project / mlir / d9403c51fd0798c45716ec5ae433aa718c874860 / . / lib / Dialect / LLVMIR / IR / LLVMDialect.cpp
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//===- LLVMDialect.cpp - LLVM IR Ops and Dialect registration -------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the types and operation details for the LLVM IR dialect in
// MLIR, and the LLVM IR dialect. It also registers the dialect.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "TypeDetail.h"
#include "mlir/Dialect/LLVMIR/LLVMTypes.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/BuiltinOps.h"
#include "mlir/IR/BuiltinTypes.h"
#include "mlir/IR/DialectImplementation.h"
#include "mlir/IR/FunctionImplementation.h"
#include "mlir/IR/MLIRContext.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/TypeSwitch.h"
#include "llvm/AsmParser/Parser.h"
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/Bitcode/BitcodeWriter.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/SourceMgr.h"
#include <iostream>
#include <numeric>
using namespace mlir;
using namespace mlir::LLVM;
using mlir::LLVM::linkage::getMaxEnumValForLinkage;
#include "mlir/Dialect/LLVMIR/LLVMOpsDialect.cpp.inc"
static constexpr const char kVolatileAttrName[] = "volatile_";
static constexpr const char kNonTemporalAttrName[] = "nontemporal";
#include "mlir/Dialect/LLVMIR/LLVMOpsEnums.cpp.inc"
#include "mlir/Dialect/LLVMIR/LLVMOpsInterfaces.cpp.inc"
#define GET_ATTRDEF_CLASSES
#include "mlir/Dialect/LLVMIR/LLVMOpsAttrDefs.cpp.inc"
static auto processFMFAttr(ArrayRef<NamedAttribute> attrs) {
SmallVector<NamedAttribute, 8> filteredAttrs(
llvm::make_filter_range(attrs, [&](NamedAttribute attr) {
if (attr.getName() == "fastmathFlags") {
auto defAttr = FMFAttr::get(attr.getValue().getContext(), {});
return defAttr != attr.getValue();
}
return true;
}));
return filteredAttrs;
}
static ParseResult parseLLVMOpAttrs(OpAsmParser &parser,
NamedAttrList &result) {
return parser.parseOptionalAttrDict(result);
}
static void printLLVMOpAttrs(OpAsmPrinter &printer, Operation *op,
DictionaryAttr attrs) {
printer.printOptionalAttrDict(processFMFAttr(attrs.getValue()));
}
/// Verifies `symbol`'s use in `op` to ensure the symbol is a valid and
/// fully defined llvm.func.
static LogicalResult verifySymbolAttrUse(FlatSymbolRefAttr symbol,
Operation *op,
SymbolTableCollection &symbolTable) {
StringRef name = symbol.getValue();
auto func =
symbolTable.lookupNearestSymbolFrom<LLVMFuncOp>(op, symbol.getAttr());
if (!func)
return op->emitOpError("'")
<< name << "' does not reference a valid LLVM function";
if (func.isExternal())
return op->emitOpError("'") << name << "' does not have a definition";
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::CmpOp.
//===----------------------------------------------------------------------===//
static void printICmpOp(OpAsmPrinter &p, ICmpOp &op) {
p << " \"" << stringifyICmpPredicate(op.getPredicate()) << "\" "
<< op.getOperand(0) << ", " << op.getOperand(1);
p.printOptionalAttrDict(op->getAttrs(), {"predicate"});
p << " : " << op.getLhs().getType();
}
static void printFCmpOp(OpAsmPrinter &p, FCmpOp &op) {
p << " \"" << stringifyFCmpPredicate(op.getPredicate()) << "\" "
<< op.getOperand(0) << ", " << op.getOperand(1);
p.printOptionalAttrDict(processFMFAttr(op->getAttrs()), {"predicate"});
p << " : " << op.getLhs().getType();
}
// <operation> ::= `llvm.icmp` string-literal ssa-use `,` ssa-use
// attribute-dict? `:` type
// <operation> ::= `llvm.fcmp` string-literal ssa-use `,` ssa-use
// attribute-dict? `:` type
template <typename CmpPredicateType>
static ParseResult parseCmpOp(OpAsmParser &parser, OperationState &result) {
Builder &builder = parser.getBuilder();
StringAttr predicateAttr;
OpAsmParser::OperandType lhs, rhs;
Type type;
llvm::SMLoc predicateLoc, trailingTypeLoc;
if (parser.getCurrentLocation(&predicateLoc) ||
parser.parseAttribute(predicateAttr, "predicate", result.attributes) ||
parser.parseOperand(lhs) || parser.parseComma() ||
parser.parseOperand(rhs) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) || parser.parseType(type) ||
parser.resolveOperand(lhs, type, result.operands) ||
parser.resolveOperand(rhs, type, result.operands))
return failure();
// Replace the string attribute `predicate` with an integer attribute.
int64_t predicateValue = 0;
if (std::is_same<CmpPredicateType, ICmpPredicate>()) {
Optional<ICmpPredicate> predicate =
symbolizeICmpPredicate(predicateAttr.getValue());
if (!predicate)
return parser.emitError(predicateLoc)
<< "'" << predicateAttr.getValue()
<< "' is an incorrect value of the 'predicate' attribute";
predicateValue = static_cast<int64_t>(predicate.getValue());
} else {
Optional<FCmpPredicate> predicate =
symbolizeFCmpPredicate(predicateAttr.getValue());
if (!predicate)
return parser.emitError(predicateLoc)
<< "'" << predicateAttr.getValue()
<< "' is an incorrect value of the 'predicate' attribute";
predicateValue = static_cast<int64_t>(predicate.getValue());
}
result.attributes.set("predicate",
parser.getBuilder().getI64IntegerAttr(predicateValue));
// The result type is either i1 or a vector type <? x i1> if the inputs are
// vectors.
Type resultType = IntegerType::get(builder.getContext(), 1);
if (!isCompatibleType(type))
return parser.emitError(trailingTypeLoc,
"expected LLVM dialect-compatible type");
if (LLVM::isCompatibleVectorType(type)) {
if (type.isa<LLVM::LLVMScalableVectorType>()) {
resultType = LLVM::LLVMScalableVectorType::get(
resultType, LLVM::getVectorNumElements(type).getKnownMinValue());
} else {
resultType = LLVM::getFixedVectorType(
resultType, LLVM::getVectorNumElements(type).getFixedValue());
}
}
result.addTypes({resultType});
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::AllocaOp.
//===----------------------------------------------------------------------===//
static void printAllocaOp(OpAsmPrinter &p, AllocaOp &op) {
auto elemTy = op.getType().cast<LLVM::LLVMPointerType>().getElementType();
auto funcTy = FunctionType::get(
op.getContext(), {op.getArraySize().getType()}, {op.getType()});
p << ' ' << op.getArraySize() << " x " << elemTy;
if (op.getAlignment().hasValue() && *op.getAlignment() != 0)
p.printOptionalAttrDict(op->getAttrs());
else
p.printOptionalAttrDict(op->getAttrs(), {"alignment"});
p << " : " << funcTy;
}
// <operation> ::= `llvm.alloca` ssa-use `x` type attribute-dict?
// `:` type `,` type
static ParseResult parseAllocaOp(OpAsmParser &parser, OperationState &result) {
OpAsmParser::OperandType arraySize;
Type type, elemType;
llvm::SMLoc trailingTypeLoc;
if (parser.parseOperand(arraySize) || parser.parseKeyword("x") ||
parser.parseType(elemType) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) || parser.parseType(type))
return failure();
Optional<NamedAttribute> alignmentAttr =
result.attributes.getNamed("alignment");
if (alignmentAttr.hasValue()) {
auto alignmentInt =
alignmentAttr.getValue().getValue().dyn_cast<IntegerAttr>();
if (!alignmentInt)
return parser.emitError(parser.getNameLoc(),
"expected integer alignment");
if (alignmentInt.getValue().isNullValue())
result.attributes.erase("alignment");
}
// Extract the result type from the trailing function type.
auto funcType = type.dyn_cast<FunctionType>();
if (!funcType || funcType.getNumInputs() != 1 ||
funcType.getNumResults() != 1)
return parser.emitError(
trailingTypeLoc,
"expected trailing function type with one argument and one result");
if (parser.resolveOperand(arraySize, funcType.getInput(0), result.operands))
return failure();
result.addTypes({funcType.getResult(0)});
return success();
}
//===----------------------------------------------------------------------===//
// LLVM::BrOp
//===----------------------------------------------------------------------===//
Optional<MutableOperandRange>
BrOp::getMutableSuccessorOperands(unsigned index) {
assert(index == 0 && "invalid successor index");
return getDestOperandsMutable();
}
//===----------------------------------------------------------------------===//
// LLVM::CondBrOp
//===----------------------------------------------------------------------===//
Optional<MutableOperandRange>
CondBrOp::getMutableSuccessorOperands(unsigned index) {
assert(index < getNumSuccessors() && "invalid successor index");
return index == 0 ? getTrueDestOperandsMutable()
: getFalseDestOperandsMutable();
}
//===----------------------------------------------------------------------===//
// LLVM::SwitchOp
//===----------------------------------------------------------------------===//
void SwitchOp::build(OpBuilder &builder, OperationState &result, Value value,
Block *defaultDestination, ValueRange defaultOperands,
ArrayRef<int32_t> caseValues, BlockRange caseDestinations,
ArrayRef<ValueRange> caseOperands,
ArrayRef<int32_t> branchWeights) {
ElementsAttr caseValuesAttr;
if (!caseValues.empty())
caseValuesAttr = builder.getI32VectorAttr(caseValues);
ElementsAttr weightsAttr;
if (!branchWeights.empty())
weightsAttr = builder.getI32VectorAttr(llvm::to_vector<4>(branchWeights));
build(builder, result, value, defaultOperands, caseOperands, caseValuesAttr,
weightsAttr, defaultDestination, caseDestinations);
}
/// <cases> ::= integer `:` bb-id (`(` ssa-use-and-type-list `)`)?
/// ( `,` integer `:` bb-id (`(` ssa-use-and-type-list `)`)? )?
static ParseResult parseSwitchOpCases(
OpAsmParser &parser, Type flagType, ElementsAttr &caseValues,
SmallVectorImpl<Block *> &caseDestinations,
SmallVectorImpl<SmallVector<OpAsmParser::OperandType>> &caseOperands,
SmallVectorImpl<SmallVector<Type>> &caseOperandTypes) {
SmallVector<APInt> values;
unsigned bitWidth = flagType.getIntOrFloatBitWidth();
do {
int64_t value = 0;
OptionalParseResult integerParseResult = parser.parseOptionalInteger(value);
if (values.empty() && !integerParseResult.hasValue())
return success();
if (!integerParseResult.hasValue() || integerParseResult.getValue())
return failure();
values.push_back(APInt(bitWidth, value));
Block *destination;
SmallVector<OpAsmParser::OperandType> operands;
SmallVector<Type> operandTypes;
if (parser.parseColon() || parser.parseSuccessor(destination))
return failure();
if (!parser.parseOptionalLParen()) {
if (parser.parseRegionArgumentList(operands) ||
parser.parseColonTypeList(operandTypes) || parser.parseRParen())
return failure();
}
caseDestinations.push_back(destination);
caseOperands.emplace_back(operands);
caseOperandTypes.emplace_back(operandTypes);
} while (!parser.parseOptionalComma());
ShapedType caseValueType =
VectorType::get(static_cast<int64_t>(values.size()), flagType);
caseValues = DenseIntElementsAttr::get(caseValueType, values);
return success();
}
static void printSwitchOpCases(OpAsmPrinter &p, SwitchOp op, Type flagType,
ElementsAttr caseValues,
SuccessorRange caseDestinations,
OperandRangeRange caseOperands,
TypeRangeRange caseOperandTypes) {
if (!caseValues)
return;
size_t index = 0;
llvm::interleave(
llvm::zip(caseValues.cast<DenseIntElementsAttr>(), caseDestinations),
[&](auto i) {
p << " ";
p << std::get<0>(i).getLimitedValue();
p << ": ";
p.printSuccessorAndUseList(std::get<1>(i), caseOperands[index++]);
},
[&] {
p << ',';
p.printNewline();
});
p.printNewline();
}
static LogicalResult verify(SwitchOp op) {
if ((!op.getCaseValues() && !op.getCaseDestinations().empty()) ||
(op.getCaseValues() &&
op.getCaseValues()->size() !=
static_cast<int64_t>(op.getCaseDestinations().size())))
return op.emitOpError("expects number of case values to match number of "
"case destinations");
if (op.getBranchWeights() &&
op.getBranchWeights()->size() != op.getNumSuccessors())
return op.emitError("expects number of branch weights to match number of "
"successors: ")
<< op.getBranchWeights()->size() << " vs " << op.getNumSuccessors();
return success();
}
Optional<MutableOperandRange>
SwitchOp::getMutableSuccessorOperands(unsigned index) {
assert(index < getNumSuccessors() && "invalid successor index");
return index == 0 ? getDefaultOperandsMutable()
: getCaseOperandsMutable(index - 1);
}
//===----------------------------------------------------------------------===//
// Builder, printer and parser for for LLVM::LoadOp.
//===----------------------------------------------------------------------===//
LogicalResult verifySymbolAttribute(
Operation *op, StringRef attributeName,
std::function<LogicalResult(Operation *, SymbolRefAttr)> verifySymbolType) {
if (Attribute attribute = op->getAttr(attributeName)) {
// The attribute is already verified to be a symbol ref array attribute via
// a constraint in the operation definition.
for (SymbolRefAttr symbolRef :
attribute.cast<ArrayAttr>().getAsRange<SymbolRefAttr>()) {
StringAttr metadataName = symbolRef.getRootReference();
StringAttr symbolName = symbolRef.getLeafReference();
// We want @metadata::@symbol, not just @symbol
if (metadataName == symbolName) {
return op->emitOpError() << "expected '" << symbolRef
<< "' to specify a fully qualified reference";
}
auto metadataOp = SymbolTable::lookupNearestSymbolFrom<LLVM::MetadataOp>(
op->getParentOp(), metadataName);
if (!metadataOp)
return op->emitOpError()
<< "expected '" << symbolRef << "' to reference a metadata op";
Operation *symbolOp =
SymbolTable::lookupNearestSymbolFrom(metadataOp, symbolName);
if (!symbolOp)
return op->emitOpError()
<< "expected '" << symbolRef << "' to be a valid reference";
if (failed(verifySymbolType(symbolOp, symbolRef))) {
return failure();
}
}
}
return success();
}
// Verifies that metadata ops are wired up properly.
template <typename OpTy>
static LogicalResult verifyOpMetadata(Operation *op, StringRef attributeName) {
auto verifySymbolType = [op](Operation *symbolOp,
SymbolRefAttr symbolRef) -> LogicalResult {
if (!isa<OpTy>(symbolOp)) {
return op->emitOpError()
<< "expected '" << symbolRef << "' to resolve to a "
<< OpTy::getOperationName();
}
return success();
};
return verifySymbolAttribute(op, attributeName, verifySymbolType);
}
static LogicalResult verifyMemoryOpMetadata(Operation *op) {
// access_groups
if (failed(verifyOpMetadata<LLVM::AccessGroupMetadataOp>(
op, LLVMDialect::getAccessGroupsAttrName())))
return failure();
// alias_scopes
if (failed(verifyOpMetadata<LLVM::AliasScopeMetadataOp>(
op, LLVMDialect::getAliasScopesAttrName())))
return failure();
// noalias_scopes
if (failed(verifyOpMetadata<LLVM::AliasScopeMetadataOp>(
op, LLVMDialect::getNoAliasScopesAttrName())))
return failure();
return success();
}
static LogicalResult verify(LoadOp op) {
return verifyMemoryOpMetadata(op.getOperation());
}
void LoadOp::build(OpBuilder &builder, OperationState &result, Type t,
Value addr, unsigned alignment, bool isVolatile,
bool isNonTemporal) {
result.addOperands(addr);
result.addTypes(t);
if (isVolatile)
result.addAttribute(kVolatileAttrName, builder.getUnitAttr());
if (isNonTemporal)
result.addAttribute(kNonTemporalAttrName, builder.getUnitAttr());
if (alignment != 0)
result.addAttribute("alignment", builder.getI64IntegerAttr(alignment));
}
static void printLoadOp(OpAsmPrinter &p, LoadOp &op) {
p << ' ';
if (op.getVolatile_())
p << "volatile ";
p << op.getAddr();
p.printOptionalAttrDict(op->getAttrs(), {kVolatileAttrName});
p << " : " << op.getAddr().getType();
}
// Extract the pointee type from the LLVM pointer type wrapped in MLIR. Return
// the resulting type wrapped in MLIR, or nullptr on error.
static Type getLoadStoreElementType(OpAsmParser &parser, Type type,
llvm::SMLoc trailingTypeLoc) {
auto llvmTy = type.dyn_cast<LLVM::LLVMPointerType>();
if (!llvmTy)
return parser.emitError(trailingTypeLoc, "expected LLVM pointer type"),
nullptr;
return llvmTy.getElementType();
}
// <operation> ::= `llvm.load` `volatile` ssa-use attribute-dict? `:` type
static ParseResult parseLoadOp(OpAsmParser &parser, OperationState &result) {
OpAsmParser::OperandType addr;
Type type;
llvm::SMLoc trailingTypeLoc;
if (succeeded(parser.parseOptionalKeyword("volatile")))
result.addAttribute(kVolatileAttrName, parser.getBuilder().getUnitAttr());
if (parser.parseOperand(addr) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) || parser.parseType(type) ||
parser.resolveOperand(addr, type, result.operands))
return failure();
Type elemTy = getLoadStoreElementType(parser, type, trailingTypeLoc);
result.addTypes(elemTy);
return success();
}
//===----------------------------------------------------------------------===//
// Builder, printer and parser for LLVM::StoreOp.
//===----------------------------------------------------------------------===//
static LogicalResult verify(StoreOp op) {
return verifyMemoryOpMetadata(op.getOperation());
}
void StoreOp::build(OpBuilder &builder, OperationState &result, Value value,
Value addr, unsigned alignment, bool isVolatile,
bool isNonTemporal) {
result.addOperands({value, addr});
result.addTypes({});
if (isVolatile)
result.addAttribute(kVolatileAttrName, builder.getUnitAttr());
if (isNonTemporal)
result.addAttribute(kNonTemporalAttrName, builder.getUnitAttr());
if (alignment != 0)
result.addAttribute("alignment", builder.getI64IntegerAttr(alignment));
}
static void printStoreOp(OpAsmPrinter &p, StoreOp &op) {
p << ' ';
if (op.getVolatile_())
p << "volatile ";
p << op.getValue() << ", " << op.getAddr();
p.printOptionalAttrDict(op->getAttrs(), {kVolatileAttrName});
p << " : " << op.getAddr().getType();
}
// <operation> ::= `llvm.store` `volatile` ssa-use `,` ssa-use
// attribute-dict? `:` type
static ParseResult parseStoreOp(OpAsmParser &parser, OperationState &result) {
OpAsmParser::OperandType addr, value;
Type type;
llvm::SMLoc trailingTypeLoc;
if (succeeded(parser.parseOptionalKeyword("volatile")))
result.addAttribute(kVolatileAttrName, parser.getBuilder().getUnitAttr());
if (parser.parseOperand(value) || parser.parseComma() ||
parser.parseOperand(addr) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) || parser.parseType(type))
return failure();
Type elemTy = getLoadStoreElementType(parser, type, trailingTypeLoc);
if (!elemTy)
return failure();
if (parser.resolveOperand(value, elemTy, result.operands) ||
parser.resolveOperand(addr, type, result.operands))
return failure();
return success();
}
///===---------------------------------------------------------------------===//
/// LLVM::InvokeOp
///===---------------------------------------------------------------------===//
Optional<MutableOperandRange>
InvokeOp::getMutableSuccessorOperands(unsigned index) {
assert(index < getNumSuccessors() && "invalid successor index");
return index == 0 ? getNormalDestOperandsMutable()
: getUnwindDestOperandsMutable();
}
static LogicalResult verify(InvokeOp op) {
if (op.getNumResults() > 1)
return op.emitOpError("must have 0 or 1 result");
Block *unwindDest = op.getUnwindDest();
if (unwindDest->empty())
return op.emitError(
"must have at least one operation in unwind destination");
// In unwind destination, first operation must be LandingpadOp
if (!isa<LandingpadOp>(unwindDest->front()))
return op.emitError("first operation in unwind destination should be a "
"llvm.landingpad operation");
return success();
}
static void printInvokeOp(OpAsmPrinter &p, InvokeOp op) {
auto callee = op.getCallee();
bool isDirect = callee.hasValue();
p << ' ';
// Either function name or pointer
if (isDirect)
p.printSymbolName(callee.getValue());
else
p << op.getOperand(0);
p << '(' << op.getOperands().drop_front(isDirect ? 0 : 1) << ')';
p << " to ";
p.printSuccessorAndUseList(op.getNormalDest(), op.getNormalDestOperands());
p << " unwind ";
p.printSuccessorAndUseList(op.getUnwindDest(), op.getUnwindDestOperands());
p.printOptionalAttrDict(op->getAttrs(),
{InvokeOp::getOperandSegmentSizeAttr(), "callee"});
p << " : ";
p.printFunctionalType(
llvm::drop_begin(op.getOperandTypes(), isDirect ? 0 : 1),
op.getResultTypes());
}
/// <operation> ::= `llvm.invoke` (function-id | ssa-use) `(` ssa-use-list `)`
/// `to` bb-id (`[` ssa-use-and-type-list `]`)?
/// `unwind` bb-id (`[` ssa-use-and-type-list `]`)?
/// attribute-dict? `:` function-type
static ParseResult parseInvokeOp(OpAsmParser &parser, OperationState &result) {
SmallVector<OpAsmParser::OperandType, 8> operands;
FunctionType funcType;
SymbolRefAttr funcAttr;
llvm::SMLoc trailingTypeLoc;
Block *normalDest, *unwindDest;
SmallVector<Value, 4> normalOperands, unwindOperands;
Builder &builder = parser.getBuilder();
// Parse an operand list that will, in practice, contain 0 or 1 operand. In
// case of an indirect call, there will be 1 operand before `(`. In case of a
// direct call, there will be no operands and the parser will stop at the
// function identifier without complaining.
if (parser.parseOperandList(operands))
return failure();
bool isDirect = operands.empty();
// Optionally parse a function identifier.
if (isDirect && parser.parseAttribute(funcAttr, "callee", result.attributes))
return failure();
if (parser.parseOperandList(operands, OpAsmParser::Delimiter::Paren) ||
parser.parseKeyword("to") ||
parser.parseSuccessorAndUseList(normalDest, normalOperands) ||
parser.parseKeyword("unwind") ||
parser.parseSuccessorAndUseList(unwindDest, unwindOperands) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) || parser.parseType(funcType))
return failure();
if (isDirect) {
// Make sure types match.
if (parser.resolveOperands(operands, funcType.getInputs(),
parser.getNameLoc(), result.operands))
return failure();
result.addTypes(funcType.getResults());
} else {
// Construct the LLVM IR Dialect function type that the first operand
// should match.
if (funcType.getNumResults() > 1)
return parser.emitError(trailingTypeLoc,
"expected function with 0 or 1 result");
Type llvmResultType;
if (funcType.getNumResults() == 0) {
llvmResultType = LLVM::LLVMVoidType::get(builder.getContext());
} else {
llvmResultType = funcType.getResult(0);
if (!isCompatibleType(llvmResultType))
return parser.emitError(trailingTypeLoc,
"expected result to have LLVM type");
}
SmallVector<Type, 8> argTypes;
argTypes.reserve(funcType.getNumInputs());
for (Type ty : funcType.getInputs()) {
if (isCompatibleType(ty))
argTypes.push_back(ty);
else
return parser.emitError(trailingTypeLoc,
"expected LLVM types as inputs");
}
auto llvmFuncType = LLVM::LLVMFunctionType::get(llvmResultType, argTypes);
auto wrappedFuncType = LLVM::LLVMPointerType::get(llvmFuncType);
auto funcArguments = llvm::makeArrayRef(operands).drop_front();
// Make sure that the first operand (indirect callee) matches the wrapped
// LLVM IR function type, and that the types of the other call operands
// match the types of the function arguments.
if (parser.resolveOperand(operands[0], wrappedFuncType, result.operands) ||
parser.resolveOperands(funcArguments, funcType.getInputs(),
parser.getNameLoc(), result.operands))
return failure();
result.addTypes(llvmResultType);
}
result.addSuccessors({normalDest, unwindDest});
result.addOperands(normalOperands);
result.addOperands(unwindOperands);
result.addAttribute(
InvokeOp::getOperandSegmentSizeAttr(),
builder.getI32VectorAttr({static_cast<int32_t>(operands.size()),
static_cast<int32_t>(normalOperands.size()),
static_cast<int32_t>(unwindOperands.size())}));
return success();
}
///===----------------------------------------------------------------------===//
/// Verifying/Printing/Parsing for LLVM::LandingpadOp.
///===----------------------------------------------------------------------===//
static LogicalResult verify(LandingpadOp op) {
Value value;
if (LLVMFuncOp func = op->getParentOfType<LLVMFuncOp>()) {
if (!func.getPersonality().hasValue())
return op.emitError(
"llvm.landingpad needs to be in a function with a personality");
}
if (!op.getCleanup() && op.getOperands().empty())
return op.emitError("landingpad instruction expects at least one clause or "
"cleanup attribute");
for (unsigned idx = 0, ie = op.getNumOperands(); idx < ie; idx++) {
value = op.getOperand(idx);
bool isFilter = value.getType().isa<LLVMArrayType>();
if (isFilter) {
// FIXME: Verify filter clauses when arrays are appropriately handled
} else {
// catch - global addresses only.
// Bitcast ops should have global addresses as their args.
if (auto bcOp = value.getDefiningOp<BitcastOp>()) {
if (auto addrOp = bcOp.getArg().getDefiningOp<AddressOfOp>())
continue;
return op.emitError("constant clauses expected")
.attachNote(bcOp.getLoc())
<< "global addresses expected as operand to "
"bitcast used in clauses for landingpad";
}
// NullOp and AddressOfOp allowed
if (value.getDefiningOp<NullOp>())
continue;
if (value.getDefiningOp<AddressOfOp>())
continue;
return op.emitError("clause #")
<< idx << " is not a known constant - null, addressof, bitcast";
}
}
return success();
}
static void printLandingpadOp(OpAsmPrinter &p, LandingpadOp &op) {
p << (op.getCleanup() ? " cleanup " : " ");
// Clauses
for (auto value : op.getOperands()) {
// Similar to llvm - if clause is an array type then it is filter
// clause else catch clause
bool isArrayTy = value.getType().isa<LLVMArrayType>();
p << '(' << (isArrayTy ? "filter " : "catch ") << value << " : "
<< value.getType() << ") ";
}
p.printOptionalAttrDict(op->getAttrs(), {"cleanup"});
p << ": " << op.getType();
}
/// <operation> ::= `llvm.landingpad` `cleanup`?
/// ((`catch` | `filter`) operand-type ssa-use)* attribute-dict?
static ParseResult parseLandingpadOp(OpAsmParser &parser,
OperationState &result) {
// Check for cleanup
if (succeeded(parser.parseOptionalKeyword("cleanup")))
result.addAttribute("cleanup", parser.getBuilder().getUnitAttr());
// Parse clauses with types
while (succeeded(parser.parseOptionalLParen()) &&
(succeeded(parser.parseOptionalKeyword("filter")) ||
succeeded(parser.parseOptionalKeyword("catch")))) {
OpAsmParser::OperandType operand;
Type ty;
if (parser.parseOperand(operand) || parser.parseColon() ||
parser.parseType(ty) ||
parser.resolveOperand(operand, ty, result.operands) ||
parser.parseRParen())
return failure();
}
Type type;
if (parser.parseColon() || parser.parseType(type))
return failure();
result.addTypes(type);
return success();
}
//===----------------------------------------------------------------------===//
// Verifying/Printing/parsing for LLVM::CallOp.
//===----------------------------------------------------------------------===//
static LogicalResult verify(CallOp &op) {
if (op.getNumResults() > 1)
return op.emitOpError("must have 0 or 1 result");
// Type for the callee, we'll get it differently depending if it is a direct
// or indirect call.
Type fnType;
bool isIndirect = false;
// If this is an indirect call, the callee attribute is missing.
FlatSymbolRefAttr calleeName = op.getCalleeAttr();
if (!calleeName) {
isIndirect = true;
if (!op.getNumOperands())
return op.emitOpError(
"must have either a `callee` attribute or at least an operand");
auto ptrType = op.getOperand(0).getType().dyn_cast<LLVMPointerType>();
if (!ptrType)
return op.emitOpError("indirect call expects a pointer as callee: ")
<< ptrType;
fnType = ptrType.getElementType();
} else {
Operation *callee =
SymbolTable::lookupNearestSymbolFrom(op, calleeName.getAttr());
if (!callee)
return op.emitOpError()
<< "'" << calleeName.getValue()
<< "' does not reference a symbol in the current scope";
auto fn = dyn_cast<LLVMFuncOp>(callee);
if (!fn)
return op.emitOpError() << "'" << calleeName.getValue()
<< "' does not reference a valid LLVM function";
fnType = fn.getType();
}
LLVMFunctionType funcType = fnType.dyn_cast<LLVMFunctionType>();
if (!funcType)
return op.emitOpError("callee does not have a functional type: ") << fnType;
// Verify that the operand and result types match the callee.
if (!funcType.isVarArg() &&
funcType.getNumParams() != (op.getNumOperands() - isIndirect))
return op.emitOpError()
<< "incorrect number of operands ("
<< (op.getNumOperands() - isIndirect)
<< ") for callee (expecting: " << funcType.getNumParams() << ")";
if (funcType.getNumParams() > (op.getNumOperands() - isIndirect))
return op.emitOpError() << "incorrect number of operands ("
<< (op.getNumOperands() - isIndirect)
<< ") for varargs callee (expecting at least: "
<< funcType.getNumParams() << ")";
for (unsigned i = 0, e = funcType.getNumParams(); i != e; ++i)
if (op.getOperand(i + isIndirect).getType() != funcType.getParamType(i))
return op.emitOpError() << "operand type mismatch for operand " << i
<< ": " << op.getOperand(i + isIndirect).getType()
<< " != " << funcType.getParamType(i);
if (op.getNumResults() == 0 &&
!funcType.getReturnType().isa<LLVM::LLVMVoidType>())
return op.emitOpError() << "expected function call to produce a value";
if (op.getNumResults() != 0 &&
funcType.getReturnType().isa<LLVM::LLVMVoidType>())
return op.emitOpError()
<< "calling function with void result must not produce values";
if (op.getNumResults() > 1)
return op.emitOpError()
<< "expected LLVM function call to produce 0 or 1 result";
if (op.getNumResults() &&
op.getResult(0).getType() != funcType.getReturnType())
return op.emitOpError()
<< "result type mismatch: " << op.getResult(0).getType()
<< " != " << funcType.getReturnType();
return success();
}
static void printCallOp(OpAsmPrinter &p, CallOp &op) {
auto callee = op.getCallee();
bool isDirect = callee.hasValue();
// Print the direct callee if present as a function attribute, or an indirect
// callee (first operand) otherwise.
p << ' ';
if (isDirect)
p.printSymbolName(callee.getValue());
else
p << op.getOperand(0);
auto args = op.getOperands().drop_front(isDirect ? 0 : 1);
p << '(' << args << ')';
p.printOptionalAttrDict(processFMFAttr(op->getAttrs()), {"callee"});
// Reconstruct the function MLIR function type from operand and result types.
p << " : "
<< FunctionType::get(op.getContext(), args.getTypes(), op.getResultTypes());
}
// <operation> ::= `llvm.call` (function-id | ssa-use) `(` ssa-use-list `)`
// attribute-dict? `:` function-type
static ParseResult parseCallOp(OpAsmParser &parser, OperationState &result) {
SmallVector<OpAsmParser::OperandType, 8> operands;
Type type;
SymbolRefAttr funcAttr;
llvm::SMLoc trailingTypeLoc;
// Parse an operand list that will, in practice, contain 0 or 1 operand. In
// case of an indirect call, there will be 1 operand before `(`. In case of a
// direct call, there will be no operands and the parser will stop at the
// function identifier without complaining.
if (parser.parseOperandList(operands))
return failure();
bool isDirect = operands.empty();
// Optionally parse a function identifier.
if (isDirect)
if (parser.parseAttribute(funcAttr, "callee", result.attributes))
return failure();
if (parser.parseOperandList(operands, OpAsmParser::Delimiter::Paren) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) || parser.parseType(type))
return failure();
auto funcType = type.dyn_cast<FunctionType>();
if (!funcType)
return parser.emitError(trailingTypeLoc, "expected function type");
if (funcType.getNumResults() > 1)
return parser.emitError(trailingTypeLoc,
"expected function with 0 or 1 result");
if (isDirect) {
// Make sure types match.
if (parser.resolveOperands(operands, funcType.getInputs(),
parser.getNameLoc(), result.operands))
return failure();
if (funcType.getNumResults() != 0 &&
!funcType.getResult(0).isa<LLVM::LLVMVoidType>())
result.addTypes(funcType.getResults());
} else {
Builder &builder = parser.getBuilder();
Type llvmResultType;
if (funcType.getNumResults() == 0) {
llvmResultType = LLVM::LLVMVoidType::get(builder.getContext());
} else {
llvmResultType = funcType.getResult(0);
if (!isCompatibleType(llvmResultType))
return parser.emitError(trailingTypeLoc,
"expected result to have LLVM type");
}
SmallVector<Type, 8> argTypes;
argTypes.reserve(funcType.getNumInputs());
for (int i = 0, e = funcType.getNumInputs(); i < e; ++i) {
auto argType = funcType.getInput(i);
if (!isCompatibleType(argType))
return parser.emitError(trailingTypeLoc,
"expected LLVM types as inputs");
argTypes.push_back(argType);
}
auto llvmFuncType = LLVM::LLVMFunctionType::get(llvmResultType, argTypes);
auto wrappedFuncType = LLVM::LLVMPointerType::get(llvmFuncType);
auto funcArguments =
ArrayRef<OpAsmParser::OperandType>(operands).drop_front();
// Make sure that the first operand (indirect callee) matches the wrapped
// LLVM IR function type, and that the types of the other call operands
// match the types of the function arguments.
if (parser.resolveOperand(operands[0], wrappedFuncType, result.operands) ||
parser.resolveOperands(funcArguments, funcType.getInputs(),
parser.getNameLoc(), result.operands))
return failure();
if (!llvmResultType.isa<LLVM::LLVMVoidType>())
result.addTypes(llvmResultType);
}
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::ExtractElementOp.
//===----------------------------------------------------------------------===//
// Expects vector to be of wrapped LLVM vector type and position to be of
// wrapped LLVM i32 type.
void LLVM::ExtractElementOp::build(OpBuilder &b, OperationState &result,
Value vector, Value position,
ArrayRef<NamedAttribute> attrs) {
auto vectorType = vector.getType();
auto llvmType = LLVM::getVectorElementType(vectorType);
build(b, result, llvmType, vector, position);
result.addAttributes(attrs);
}
static void printExtractElementOp(OpAsmPrinter &p, ExtractElementOp &op) {
p << ' ' << op.getVector() << "[" << op.getPosition() << " : "
<< op.getPosition().getType() << "]";
p.printOptionalAttrDict(op->getAttrs());
p << " : " << op.getVector().getType();
}
// <operation> ::= `llvm.extractelement` ssa-use `, ` ssa-use
// attribute-dict? `:` type
static ParseResult parseExtractElementOp(OpAsmParser &parser,
OperationState &result) {
llvm::SMLoc loc;
OpAsmParser::OperandType vector, position;
Type type, positionType;
if (parser.getCurrentLocation(&loc) || parser.parseOperand(vector) ||
parser.parseLSquare() || parser.parseOperand(position) ||
parser.parseColonType(positionType) || parser.parseRSquare() ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColonType(type) ||
parser.resolveOperand(vector, type, result.operands) ||
parser.resolveOperand(position, positionType, result.operands))
return failure();
if (!LLVM::isCompatibleVectorType(type))
return parser.emitError(
loc, "expected LLVM dialect-compatible vector type for operand #1");
result.addTypes(LLVM::getVectorElementType(type));
return success();
}
static LogicalResult verify(ExtractElementOp op) {
Type vectorType = op.getVector().getType();
if (!LLVM::isCompatibleVectorType(vectorType))
return op->emitOpError("expected LLVM dialect-compatible vector type for "
"operand #1, got")
<< vectorType;
Type valueType = LLVM::getVectorElementType(vectorType);
if (valueType != op.getRes().getType())
return op.emitOpError() << "Type mismatch: extracting from " << vectorType
<< " should produce " << valueType
<< " but this op returns " << op.getRes().getType();
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::ExtractValueOp.
//===----------------------------------------------------------------------===//
static void printExtractValueOp(OpAsmPrinter &p, ExtractValueOp &op) {
p << ' ' << op.getContainer() << op.getPosition();
p.printOptionalAttrDict(op->getAttrs(), {"position"});
p << " : " << op.getContainer().getType();
}
// Extract the type at `position` in the wrapped LLVM IR aggregate type
// `containerType`. Position is an integer array attribute where each value
// is a zero-based position of the element in the aggregate type. Return the
// resulting type wrapped in MLIR, or nullptr on error.
static Type getInsertExtractValueElementType(OpAsmParser &parser,
Type containerType,
ArrayAttr positionAttr,
llvm::SMLoc attributeLoc,
llvm::SMLoc typeLoc) {
Type llvmType = containerType;
if (!isCompatibleType(containerType))
return parser.emitError(typeLoc, "expected LLVM IR Dialect type"), nullptr;
// Infer the element type from the structure type: iteratively step inside the
// type by taking the element type, indexed by the position attribute for
// structures. Check the position index before accessing, it is supposed to
// be in bounds.
for (Attribute subAttr : positionAttr) {
auto positionElementAttr = subAttr.dyn_cast<IntegerAttr>();
if (!positionElementAttr)
return parser.emitError(attributeLoc,
"expected an array of integer literals"),
nullptr;
int position = positionElementAttr.getInt();
if (auto arrayType = llvmType.dyn_cast<LLVMArrayType>()) {
if (position < 0 ||
static_cast<unsigned>(position) >= arrayType.getNumElements())
return parser.emitError(attributeLoc, "position out of bounds"),
nullptr;
llvmType = arrayType.getElementType();
} else if (auto structType = llvmType.dyn_cast<LLVMStructType>()) {
if (position < 0 ||
static_cast<unsigned>(position) >= structType.getBody().size())
return parser.emitError(attributeLoc, "position out of bounds"),
nullptr;
llvmType = structType.getBody()[position];
} else {
return parser.emitError(typeLoc, "expected LLVM IR structure/array type"),
nullptr;
}
}
return llvmType;
}
// Extract the type at `position` in the wrapped LLVM IR aggregate type
// `containerType`. Returns null on failure.
static Type getInsertExtractValueElementType(Type containerType,
ArrayAttr positionAttr,
Operation *op) {
Type llvmType = containerType;
if (!isCompatibleType(containerType)) {
op->emitError("expected LLVM IR Dialect type, got ") << containerType;
return {};
}
// Infer the element type from the structure type: iteratively step inside the
// type by taking the element type, indexed by the position attribute for
// structures. Check the position index before accessing, it is supposed to
// be in bounds.
for (Attribute subAttr : positionAttr) {
auto positionElementAttr = subAttr.dyn_cast<IntegerAttr>();
if (!positionElementAttr) {
op->emitOpError("expected an array of integer literals, got: ")
<< subAttr;
return {};
}
int position = positionElementAttr.getInt();
if (auto arrayType = llvmType.dyn_cast<LLVMArrayType>()) {
if (position < 0 ||
static_cast<unsigned>(position) >= arrayType.getNumElements()) {
op->emitOpError("position out of bounds: ") << position;
return {};
}
llvmType = arrayType.getElementType();
} else if (auto structType = llvmType.dyn_cast<LLVMStructType>()) {
if (position < 0 ||
static_cast<unsigned>(position) >= structType.getBody().size()) {
op->emitOpError("position out of bounds") << position;
return {};
}
llvmType = structType.getBody()[position];
} else {
op->emitOpError("expected LLVM IR structure/array type, got: ")
<< llvmType;
return {};
}
}
return llvmType;
}
// <operation> ::= `llvm.extractvalue` ssa-use
// `[` integer-literal (`,` integer-literal)* `]`
// attribute-dict? `:` type
static ParseResult parseExtractValueOp(OpAsmParser &parser,
OperationState &result) {
OpAsmParser::OperandType container;
Type containerType;
ArrayAttr positionAttr;
llvm::SMLoc attributeLoc, trailingTypeLoc;
if (parser.parseOperand(container) ||
parser.getCurrentLocation(&attributeLoc) ||
parser.parseAttribute(positionAttr, "position", result.attributes) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) ||
parser.parseType(containerType) ||
parser.resolveOperand(container, containerType, result.operands))
return failure();
auto elementType = getInsertExtractValueElementType(
parser, containerType, positionAttr, attributeLoc, trailingTypeLoc);
if (!elementType)
return failure();
result.addTypes(elementType);
return success();
}
OpFoldResult LLVM::ExtractValueOp::fold(ArrayRef<Attribute> operands) {
auto insertValueOp = getContainer().getDefiningOp<InsertValueOp>();
while (insertValueOp) {
if (getPosition() == insertValueOp.getPosition())
return insertValueOp.getValue();
unsigned min =
std::min(getPosition().size(), insertValueOp.getPosition().size());
// If one is fully prefix of the other, stop propagating back as it will
// miss dependencies. For instance, %3 should not fold to %f0 in the
// following example:
// ```
// %1 = llvm.insertvalue %f0, %0[0, 0] :
// !llvm.array<4 x !llvm.array<4xf32>>
// %2 = llvm.insertvalue %arr, %1[0] :
// !llvm.array<4 x !llvm.array<4xf32>>
// %3 = llvm.extractvalue %2[0, 0] : !llvm.array<4 x !llvm.array<4xf32>>
// ```
if (getPosition().getValue().take_front(min) ==
insertValueOp.getPosition().getValue().take_front(min))
return {};
insertValueOp = insertValueOp.getContainer().getDefiningOp<InsertValueOp>();
}
return {};
}
static LogicalResult verify(ExtractValueOp op) {
Type valueType = getInsertExtractValueElementType(op.getContainer().getType(),
op.getPositionAttr(), op);
if (!valueType)
return failure();
if (op.getRes().getType() != valueType)
return op.emitOpError()
<< "Type mismatch: extracting from " << op.getContainer().getType()
<< " should produce " << valueType << " but this op returns "
<< op.getRes().getType();
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::InsertElementOp.
//===----------------------------------------------------------------------===//
static void printInsertElementOp(OpAsmPrinter &p, InsertElementOp &op) {
p << ' ' << op.getValue() << ", " << op.getVector() << "[" << op.getPosition()
<< " : " << op.getPosition().getType() << "]";
p.printOptionalAttrDict(op->getAttrs());
p << " : " << op.getVector().getType();
}
// <operation> ::= `llvm.insertelement` ssa-use `,` ssa-use `,` ssa-use
// attribute-dict? `:` type
static ParseResult parseInsertElementOp(OpAsmParser &parser,
OperationState &result) {
llvm::SMLoc loc;
OpAsmParser::OperandType vector, value, position;
Type vectorType, positionType;
if (parser.getCurrentLocation(&loc) || parser.parseOperand(value) ||
parser.parseComma() || parser.parseOperand(vector) ||
parser.parseLSquare() || parser.parseOperand(position) ||
parser.parseColonType(positionType) || parser.parseRSquare() ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColonType(vectorType))
return failure();
if (!LLVM::isCompatibleVectorType(vectorType))
return parser.emitError(
loc, "expected LLVM dialect-compatible vector type for operand #1");
Type valueType = LLVM::getVectorElementType(vectorType);
if (!valueType)
return failure();
if (parser.resolveOperand(vector, vectorType, result.operands) ||
parser.resolveOperand(value, valueType, result.operands) ||
parser.resolveOperand(position, positionType, result.operands))
return failure();
result.addTypes(vectorType);
return success();
}
static LogicalResult verify(InsertElementOp op) {
Type valueType = LLVM::getVectorElementType(op.getVector().getType());
if (valueType != op.getValue().getType())
return op.emitOpError()
<< "Type mismatch: cannot insert " << op.getValue().getType()
<< " into " << op.getVector().getType();
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::InsertValueOp.
//===----------------------------------------------------------------------===//
static void printInsertValueOp(OpAsmPrinter &p, InsertValueOp &op) {
p << ' ' << op.getValue() << ", " << op.getContainer() << op.getPosition();
p.printOptionalAttrDict(op->getAttrs(), {"position"});
p << " : " << op.getContainer().getType();
}
// <operation> ::= `llvm.insertvaluevalue` ssa-use `,` ssa-use
// `[` integer-literal (`,` integer-literal)* `]`
// attribute-dict? `:` type
static ParseResult parseInsertValueOp(OpAsmParser &parser,
OperationState &result) {
OpAsmParser::OperandType container, value;
Type containerType;
ArrayAttr positionAttr;
llvm::SMLoc attributeLoc, trailingTypeLoc;
if (parser.parseOperand(value) || parser.parseComma() ||
parser.parseOperand(container) ||
parser.getCurrentLocation(&attributeLoc) ||
parser.parseAttribute(positionAttr, "position", result.attributes) ||
parser.parseOptionalAttrDict(result.attributes) || parser.parseColon() ||
parser.getCurrentLocation(&trailingTypeLoc) ||
parser.parseType(containerType))
return failure();
auto valueType = getInsertExtractValueElementType(
parser, containerType, positionAttr, attributeLoc, trailingTypeLoc);
if (!valueType)
return failure();
if (parser.resolveOperand(container, containerType, result.operands) ||
parser.resolveOperand(value, valueType, result.operands))
return failure();
result.addTypes(containerType);
return success();
}
static LogicalResult verify(InsertValueOp op) {
Type valueType = getInsertExtractValueElementType(op.getContainer().getType(),
op.getPositionAttr(), op);
if (!valueType)
return failure();
if (op.getValue().getType() != valueType)
return op.emitOpError()
<< "Type mismatch: cannot insert " << op.getValue().getType()
<< " into " << op.getContainer().getType();
return success();
}
//===----------------------------------------------------------------------===//
// Printing, parsing and verification for LLVM::ReturnOp.
//===----------------------------------------------------------------------===//
static void printReturnOp(OpAsmPrinter &p, ReturnOp op) {
p.printOptionalAttrDict(op->getAttrs());
assert(op.getNumOperands() <= 1);
if (op.getNumOperands() == 0)
return;
p << ' ' << op.getOperand(0) << " : " << op.getOperand(0).getType();
}
// <operation> ::= `llvm.return` ssa-use-list attribute-dict? `:`
// type-list-no-parens
static ParseResult parseReturnOp(OpAsmParser &parser, OperationState &result) {
SmallVector<OpAsmParser::OperandType, 1> operands;
Type type;
if (parser.parseOperandList(operands) ||
parser.parseOptionalAttrDict(result.attributes))
return failure();
if (operands.empty())
return success();
if (parser.parseColonType(type) ||
parser.resolveOperand(operands[0], type, result.operands))
return failure();
return success();
}
static LogicalResult verify(ReturnOp op) {
if (op->getNumOperands() > 1)
return op->emitOpError("expected at most 1 operand");
if (auto parent = op->getParentOfType<LLVMFuncOp>()) {
Type expectedType = parent.getType().getReturnType();
if (expectedType.isa<LLVMVoidType>()) {
if (op->getNumOperands() == 0)
return success();
InFlightDiagnostic diag = op->emitOpError("expected no operands");
diag.attachNote(parent->getLoc()) << "when returning from function";
return diag;
}
if (op->getNumOperands() == 0) {
if (expectedType.isa<LLVMVoidType>())
return success();
InFlightDiagnostic diag = op->emitOpError("expected 1 operand");
diag.attachNote(parent->getLoc()) << "when returning from function";
return diag;
}
if (expectedType != op->getOperand(0).getType()) {
InFlightDiagnostic diag = op->emitOpError("mismatching result types");
diag.attachNote(parent->getLoc()) << "when returning from function";
return diag;
}
}
return success();
}
//===----------------------------------------------------------------------===//
// Verifier for LLVM::AddressOfOp.
//===----------------------------------------------------------------------===//
template <typename OpTy>
static OpTy lookupSymbolInModule(Operation *parent, StringRef name) {
Operation *module = parent;
while (module && !satisfiesLLVMModule(module))
module = module->getParentOp();
assert(module && "unexpected operation outside of a module");
return dyn_cast_or_null<OpTy>(
mlir::SymbolTable::lookupSymbolIn(module, name));
}
GlobalOp AddressOfOp::getGlobal() {
return lookupSymbolInModule<LLVM::GlobalOp>((*this)->getParentOp(),
getGlobalName());
}
LLVMFuncOp AddressOfOp::getFunction() {
return lookupSymbolInModule<LLVM::LLVMFuncOp>((*this)->getParentOp(),
getGlobalName());
}
static LogicalResult verify(AddressOfOp op) {
auto global = op.getGlobal();
auto function = op.getFunction();
if (!global && !function)
return op.emitOpError(
"must reference a global defined by 'llvm.mlir.global' or 'llvm.func'");
if (global &&
LLVM::LLVMPointerType::get(global.getType(), global.getAddrSpace()) !=
op.getResult().getType())
return op.emitOpError(
"the type must be a pointer to the type of the referenced global");
if (function && LLVM::LLVMPointerType::get(function.getType()) !=
op.getResult().getType())
return op.emitOpError(
"the type must be a pointer to the type of the referenced function");
return success();
}
//===----------------------------------------------------------------------===//
// Builder, printer and verifier for LLVM::GlobalOp.
//===----------------------------------------------------------------------===//
/// Returns the name used for the linkage attribute. This *must* correspond to
/// the name of the attribute in ODS.
static StringRef getLinkageAttrName() { return "linkage"; }
/// Returns the name used for the unnamed_addr attribute. This *must* correspond
/// to the name of the attribute in ODS.
static StringRef getUnnamedAddrAttrName() { return "unnamed_addr"; }
void GlobalOp::build(OpBuilder &builder, OperationState &result, Type type,
bool isConstant, Linkage linkage, StringRef name,
Attribute value, uint64_t alignment, unsigned addrSpace,
bool dsoLocal, ArrayRef<NamedAttribute> attrs) {
result.addAttribute(SymbolTable::getSymbolAttrName(),
builder.getStringAttr(name));
result.addAttribute("global_type", TypeAttr::get(type));
if (isConstant)
result.addAttribute("constant", builder.getUnitAttr());
if (value)
result.addAttribute("value", value);
if (dsoLocal)
result.addAttribute("dso_local", builder.getUnitAttr());
// Only add an alignment attribute if the "alignment" input
// is different from 0. The value must also be a power of two, but
// this is tested in GlobalOp::verify, not here.
if (alignment != 0)
result.addAttribute("alignment", builder.getI64IntegerAttr(alignment));
result.addAttribute(::getLinkageAttrName(),
LinkageAttr::get(builder.getContext(), linkage));
if (addrSpace != 0)
result.addAttribute("addr_space", builder.getI32IntegerAttr(addrSpace));
result.attributes.append(attrs.begin(), attrs.end());
result.addRegion();
}
static void printGlobalOp(OpAsmPrinter &p, GlobalOp op) {
p << ' ' << stringifyLinkage(op.getLinkage()) << ' ';
if (auto unnamedAddr = op.getUnnamedAddr()) {
StringRef str = stringifyUnnamedAddr(*unnamedAddr);
if (!str.empty())
p << str << ' ';
}
if (op.getConstant())
p << "constant ";
p.printSymbolName(op.getSymName());
p << '(';
if (auto value = op.getValueOrNull())
p.printAttribute(value);
p << ')';
// Note that the alignment attribute is printed using the
// default syntax here, even though it is an inherent attribute
// (as defined in https://mlir.llvm.org/docs/LangRef/#attributes)
p.printOptionalAttrDict(op->getAttrs(),
{SymbolTable::getSymbolAttrName(), "global_type",
"constant", "value", getLinkageAttrName(),
getUnnamedAddrAttrName()});
// Print the trailing type unless it's a string global.
if (op.getValueOrNull().dyn_cast_or_null<StringAttr>())
return;
p << " : " << op.getType();
Region &initializer = op.getInitializerRegion();
if (!initializer.empty())
p.printRegion(initializer, /*printEntryBlockArgs=*/false);
}
// Parses one of the keywords provided in the list `keywords` and returns the
// position of the parsed keyword in the list. If none of the keywords from the
// list is parsed, returns -1.
static int parseOptionalKeywordAlternative(OpAsmParser &parser,
ArrayRef<StringRef> keywords) {
for (auto en : llvm::enumerate(keywords)) {
if (succeeded(parser.parseOptionalKeyword(en.value())))
return en.index();
}
return -1;
}
namespace {
template <typename Ty>
struct EnumTraits {};
#define REGISTER_ENUM_TYPE(Ty) \
template <> \
struct EnumTraits<Ty> { \
static StringRef stringify(Ty value) { return stringify##Ty(value); } \
static unsigned getMaxEnumVal() { return getMaxEnumValFor##Ty(); } \
}
REGISTER_ENUM_TYPE(Linkage);
REGISTER_ENUM_TYPE(UnnamedAddr);
} // end namespace
/// Parse an enum from the keyword, or default to the provided default value.
/// The return type is the enum type by default, unless overriden with the
/// second template argument.
template <typename EnumTy, typename RetTy = EnumTy>
static RetTy parseOptionalLLVMKeyword(OpAsmParser &parser,
OperationState &result,
EnumTy defaultValue) {
SmallVector<StringRef, 10> names;
for (unsigned i = 0, e = EnumTraits<EnumTy>::getMaxEnumVal(); i <= e; ++i)
names.push_back(EnumTraits<EnumTy>::stringify(static_cast<EnumTy>(i)));
int index = parseOptionalKeywordAlternative(parser, names);
if (index == -1)
return static_cast<RetTy>(defaultValue);
return static_cast<RetTy>(index);
}
// operation ::= `llvm.mlir.global` linkage? `constant`? `@` identifier
// `(` attribute? `)` align? attribute-list? (`:` type)? region?
// align ::= `align` `=` UINT64
//
// The type can be omitted for string attributes, in which case it will be
// inferred from the value of the string as [strlen(value) x i8].
static ParseResult parseGlobalOp(OpAsmParser &parser, OperationState &result) {
MLIRContext *ctx = parser.getContext();
// Parse optional linkage, default to External.
result.addAttribute(getLinkageAttrName(),
LLVM::LinkageAttr::get(
ctx, parseOptionalLLVMKeyword<Linkage>(
parser, result, LLVM::Linkage::External)));
// Parse optional UnnamedAddr, default to None.
result.addAttribute(getUnnamedAddrAttrName(),
parser.getBuilder().getI64IntegerAttr(
parseOptionalLLVMKeyword<UnnamedAddr, int64_t>(
parser, result, LLVM::UnnamedAddr::None)));
if (succeeded(parser.parseOptionalKeyword("constant")))
result.addAttribute("constant", parser.getBuilder().getUnitAttr());
StringAttr name;
if (parser.parseSymbolName(name, SymbolTable::getSymbolAttrName(),
result.attributes) ||
parser.parseLParen())
return failure();
Attribute value;
if (parser.parseOptionalRParen()) {
if (parser.parseAttribute(value, "value", result.attributes) ||
parser.parseRParen())
return failure();
}
SmallVector<Type, 1> types;
if (parser.parseOptionalAttrDict(result.attributes) ||
parser.parseOptionalColonTypeList(types))
return failure();
if (types.size() > 1)
return parser.emitError(parser.getNameLoc(), "expected zero or one type");
Region &initRegion = *result.addRegion();
if (types.empty()) {
if (auto strAttr = value.dyn_cast_or_null<StringAttr>()) {
MLIRContext *context = parser.getContext();
auto arrayType = LLVM::LLVMArrayType::get(IntegerType::get(context, 8),
strAttr.getValue().size());
types.push_back(arrayType);
} else {
return parser.emitError(parser.getNameLoc(),
"type can only be omitted for string globals");
}
} else {
OptionalParseResult parseResult =
parser.parseOptionalRegion(initRegion, /*arguments=*/{},
/*argTypes=*/{});
if (parseResult.hasValue() && failed(*parseResult))
return failure();
}
result.addAttribute("global_type", TypeAttr::get(types[0]));
return success();
}
static bool isZeroAttribute(Attribute value) {
if (auto intValue = value.dyn_cast<IntegerAttr>())
return intValue.getValue().isNullValue();
if (auto fpValue = value.dyn_cast<FloatAttr>())
return fpValue.getValue().isZero();
if (auto splatValue = value.dyn_cast<SplatElementsAttr>())
return isZeroAttribute(splatValue.getSplatValue<Attribute>());
if (auto elementsValue = value.dyn_cast<ElementsAttr>())
return llvm::all_of(elementsValue.getValues<Attribute>(), isZeroAttribute);
if (auto arrayValue = value.dyn_cast<ArrayAttr>())
return llvm::all_of(arrayValue.getValue(), isZeroAttribute);
return false;
}
static LogicalResult verify(GlobalOp op) {
if (!LLVMPointerType::isValidElementType(op.getType()))
return op.emitOpError(
"expects type to be a valid element type for an LLVM pointer");
if (op->getParentOp() && !satisfiesLLVMModule(op->getParentOp()))
return op.emitOpError("must appear at the module level");
if (auto strAttr = op.getValueOrNull().dyn_cast_or_null<StringAttr>()) {
auto type = op.getType().dyn_cast<LLVMArrayType>();
IntegerType elementType =
type ? type.getElementType().dyn_cast<IntegerType>() : nullptr;
if (!elementType || elementType.getWidth() != 8 ||
type.getNumElements() != strAttr.getValue().size())
return op.emitOpError(
"requires an i8 array type of the length equal to that of the string "
"attribute");
}
if (Block *b = op.getInitializerBlock()) {
ReturnOp ret = cast<ReturnOp>(b->getTerminator());
if (ret.operand_type_begin() == ret.operand_type_end())
return op.emitOpError("initializer region cannot return void");
if (*ret.operand_type_begin() != op.getType())
return op.emitOpError("initializer region type ")
<< *ret.operand_type_begin() << " does not match global type "
<< op.getType();
if (op.getValueOrNull())
return op.emitOpError("cannot have both initializer value and region");
}
if (op.getLinkage() == Linkage::Common) {
if (Attribute value = op.getValueOrNull()) {
if (!isZeroAttribute(value)) {
return op.emitOpError()
<< "expected zero value for '"
<< stringifyLinkage(Linkage::Common) << "' linkage";
}
}
}
if (op.getLinkage() == Linkage::Appending) {
if (!op.getType().isa<LLVMArrayType>()) {
return op.emitOpError()
<< "expected array type for '"
<< stringifyLinkage(Linkage::Appending) << "' linkage";
}
}
Optional<uint64_t> alignAttr = op.getAlignment();
if (alignAttr.hasValue()) {
uint64_t value = alignAttr.getValue();
if (!llvm::isPowerOf2_64(value))
return op->emitError() << "alignment attribute is not a power of 2";
}
return success();
}
//===----------------------------------------------------------------------===//
// LLVM::GlobalCtorsOp
//===----------------------------------------------------------------------===//
LogicalResult
GlobalCtorsOp::verifySymbolUses(SymbolTableCollection &symbolTable) {
for (Attribute ctor : getCtors()) {
if (failed(verifySymbolAttrUse(ctor.cast<FlatSymbolRefAttr>(), *this,
symbolTable)))
return failure();
}
return success();
}
static LogicalResult verify(GlobalCtorsOp op) {
if (op.getCtors().size() != op.getPriorities().size())
return op.emitError(
"mismatch between the number of ctors and the number of priorities");
return success();
}
//===----------------------------------------------------------------------===//
// LLVM::GlobalDtorsOp
//===----------------------------------------------------------------------===//
LogicalResult
GlobalDtorsOp::verifySymbolUses(SymbolTableCollection &symbolTable) {
for (Attribute dtor : getDtors()) {
if (failed(verifySymbolAttrUse(dtor.cast<FlatSymbolRefAttr>(), *this,
symbolTable)))
return failure();
}
return success();
}
static LogicalResult verify(GlobalDtorsOp op) {
if (op.getDtors().size() != op.getPriorities().size())
return op.emitError(
"mismatch between the number of dtors and the number of priorities");
return success();
}
//===----------------------------------------------------------------------===//
// Printing/parsing for LLVM::ShuffleVectorOp.
//===----------------------------------------------------------------------===//
// Expects vector to be of wrapped LLVM vector type and position to be of
// wrapped LLVM i32 type.
void LLVM::ShuffleVectorOp::build(OpBuilder &b, OperationState &result,
Value v1, Value v2, ArrayAttr mask,
ArrayRef<NamedAttribute> attrs) {
auto containerType = v1.getType();
auto vType = LLVM::getFixedVectorType(
LLVM::getVectorElementType(containerType), mask.size());
build(b, result, vType, v1, v2, mask);
result.addAttributes(attrs);
}
static void printShuffleVectorOp(OpAsmPrinter &p, ShuffleVectorOp &op) {
p << ' ' << op.getV1() << ", " << op.getV2() << " " << op.getMask();
p.printOptionalAttrDict(op->getAttrs(), {"mask"});
p << " : " << op.getV1().getType() << ", " << op.getV2().getType();
}
// <operation> ::= `llvm.shufflevector` ssa-use `, ` ssa-use
// `[` integer-literal (`,` integer-literal)* `]`
// attribute-dict? `:` type
static ParseResult parseShuffleVectorOp(OpAsmParser &parser,
OperationState &result) {
llvm::SMLoc loc;
OpAsmParser::OperandType v1, v2;
ArrayAttr maskAttr;
Type typeV1, typeV2;
if (parser.getCurrentLocation(&loc) || parser.parseOperand(v1) ||
parser.parseComma() || parser.parseOperand(v2) ||
parser.parseAttribute(maskAttr, "mask", result.attributes) ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColonType(typeV1) || parser.parseComma() ||
parser.parseType(typeV2) ||
parser.resolveOperand(v1, typeV1, result.operands) ||
parser.resolveOperand(v2, typeV2, result.operands))
return failure();
if (!LLVM::isCompatibleVectorType(typeV1))
return parser.emitError(
loc, "expected LLVM IR dialect vector type for operand #1");
auto vType = LLVM::getFixedVectorType(LLVM::getVectorElementType(typeV1),
maskAttr.size());
result.addTypes(vType);
return success();
}
//===----------------------------------------------------------------------===//
// Implementations for LLVM::LLVMFuncOp.
//===----------------------------------------------------------------------===//
// Add the entry block to the function.
Block *LLVMFuncOp::addEntryBlock() {
assert(empty() && "function already has an entry block");
assert(!isVarArg() && "unimplemented: non-external variadic functions");
auto *entry = new Block;
push_back(entry);
LLVMFunctionType type = getType();
for (unsigned i = 0, e = type.getNumParams(); i < e; ++i)
entry->addArgument(type.getParamType(i));
return entry;
}
void LLVMFuncOp::build(OpBuilder &builder, OperationState &result,
StringRef name, Type type, LLVM::Linkage linkage,
bool dsoLocal, ArrayRef<NamedAttribute> attrs,
ArrayRef<DictionaryAttr> argAttrs) {
result.addRegion();
result.addAttribute(SymbolTable::getSymbolAttrName(),
builder.getStringAttr(name));
result.addAttribute("type", TypeAttr::get(type));
result.addAttribute(::getLinkageAttrName(),
LinkageAttr::get(builder.getContext(), linkage));
result.attributes.append(attrs.begin(), attrs.end());
if (dsoLocal)
result.addAttribute("dso_local", builder.getUnitAttr());
if (argAttrs.empty())
return;
assert(type.cast<LLVMFunctionType>().getNumParams() == argAttrs.size() &&
"expected as many argument attribute lists as arguments");
function_like_impl::addArgAndResultAttrs(builder, result, argAttrs,
/*resultAttrs=*/llvm::None);
}
// Builds an LLVM function type from the given lists of input and output types.
// Returns a null type if any of the types provided are non-LLVM types, or if
// there is more than one output type.
static Type
buildLLVMFunctionType(OpAsmParser &parser, llvm::SMLoc loc,
ArrayRef<Type> inputs, ArrayRef<Type> outputs,
function_like_impl::VariadicFlag variadicFlag) {
Builder &b = parser.getBuilder();
if (outputs.size() > 1) {
parser.emitError(loc, "failed to construct function type: expected zero or "
"one function result");
return {};
}
// Convert inputs to LLVM types, exit early on error.
SmallVector<Type, 4> llvmInputs;
for (auto t : inputs) {
if (!isCompatibleType(t)) {
parser.emitError(loc, "failed to construct function type: expected LLVM "
"type for function arguments");
return {};
}
llvmInputs.push_back(t);
}
// No output is denoted as "void" in LLVM type system.
Type llvmOutput =
outputs.empty() ? LLVMVoidType::get(b.getContext()) : outputs.front();
if (!isCompatibleType(llvmOutput)) {
parser.emitError(loc, "failed to construct function type: expected LLVM "
"type for function results")
<< llvmOutput;
return {};
}
return LLVMFunctionType::get(llvmOutput, llvmInputs,
variadicFlag.isVariadic());
}
// Parses an LLVM function.
//
// operation ::= `llvm.func` linkage? function-signature function-attributes?
// function-body
//
static ParseResult parseLLVMFuncOp(OpAsmParser &parser,
OperationState &result) {
// Default to external linkage if no keyword is provided.
result.addAttribute(
getLinkageAttrName(),
LinkageAttr::get(parser.getContext(),
parseOptionalLLVMKeyword<Linkage>(
parser, result, LLVM::Linkage::External)));
StringAttr nameAttr;
SmallVector<OpAsmParser::OperandType, 8> entryArgs;
SmallVector<NamedAttrList, 1> argAttrs;
SmallVector<NamedAttrList, 1> resultAttrs;
SmallVector<Type, 8> argTypes;
SmallVector<Type, 4> resultTypes;
bool isVariadic;
auto signatureLocation = parser.getCurrentLocation();
if (parser.parseSymbolName(nameAttr, SymbolTable::getSymbolAttrName(),
result.attributes) ||
function_like_impl::parseFunctionSignature(
parser, /*allowVariadic=*/true, entryArgs, argTypes, argAttrs,
isVariadic, resultTypes, resultAttrs))
return failure();
auto type =
buildLLVMFunctionType(parser, signatureLocation, argTypes, resultTypes,
function_like_impl::VariadicFlag(isVariadic));
if (!type)
return failure();
result.addAttribute(function_like_impl::getTypeAttrName(),
TypeAttr::get(type));
if (failed(parser.parseOptionalAttrDictWithKeyword(result.attributes)))
return failure();
function_like_impl::addArgAndResultAttrs(parser.getBuilder(), result,
argAttrs, resultAttrs);
auto *body = result.addRegion();
OptionalParseResult parseResult = parser.parseOptionalRegion(
*body, entryArgs, entryArgs.empty() ? ArrayRef<Type>() : argTypes);
return failure(parseResult.hasValue() && failed(*parseResult));
}
// Print the LLVMFuncOp. Collects argument and result types and passes them to
// helper functions. Drops "void" result since it cannot be parsed back. Skips
// the external linkage since it is the default value.
static void printLLVMFuncOp(OpAsmPrinter &p, LLVMFuncOp op) {
p << ' ';
if (op.getLinkage() != LLVM::Linkage::External)
p << stringifyLinkage(op.getLinkage()) << ' ';
p.printSymbolName(op.getName());
LLVMFunctionType fnType = op.getType();
SmallVector<Type, 8> argTypes;
SmallVector<Type, 1> resTypes;
argTypes.reserve(fnType.getNumParams());
for (unsigned i = 0, e = fnType.getNumParams(); i < e; ++i)
argTypes.push_back(fnType.getParamType(i));
Type returnType = fnType.getReturnType();
if (!returnType.isa<LLVMVoidType>())
resTypes.push_back(returnType);
function_like_impl::printFunctionSignature(p, op, argTypes, op.isVarArg(),
resTypes);
function_like_impl::printFunctionAttributes(
p, op, argTypes.size(), resTypes.size(), {getLinkageAttrName()});
// Print the body if this is not an external function.
Region &body = op.getBody();
if (!body.empty())
p.printRegion(body, /*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/true);
}
// Hook for OpTrait::FunctionLike, called after verifying that the 'type'
// attribute is present. This can check for preconditions of the
// getNumArguments hook not failing.
LogicalResult LLVMFuncOp::verifyType() {
auto llvmType = getTypeAttr().getValue().dyn_cast_or_null<LLVMFunctionType>();
if (!llvmType)
return emitOpError("requires '" + getTypeAttrName() +
"' attribute of wrapped LLVM function type");
return success();
}
// Hook for OpTrait::FunctionLike, returns the number of function arguments.
// Depends on the type attribute being correct as checked by verifyType
unsigned LLVMFuncOp::getNumFuncArguments() { return getType().getNumParams(); }
// Hook for OpTrait::FunctionLike, returns the number of function results.
// Depends on the type attribute being correct as checked by verifyType
unsigned LLVMFuncOp::getNumFuncResults() {
// We model LLVM functions that return void as having zero results,
// and all others as having one result.
// If we modeled a void return as one result, then it would be possible to
// attach an MLIR result attribute to it, and it isn't clear what semantics we
// would assign to that.
if (getType().getReturnType().isa<LLVMVoidType>())
return 0;
return 1;
}
// Verifies LLVM- and implementation-specific properties of the LLVM func Op:
// - functions don't have 'common' linkage
// - external functions have 'external' or 'extern_weak' linkage;
// - vararg is (currently) only supported for external functions;
// - entry block arguments are of LLVM types and match the function signature.
static LogicalResult verify(LLVMFuncOp op) {
if (op.getLinkage() == LLVM::Linkage::Common)
return op.emitOpError()
<< "functions cannot have '"
<< stringifyLinkage(LLVM::Linkage::Common) << "' linkage";
if (op.isExternal()) {
if (op.getLinkage() != LLVM::Linkage::External &&
op.getLinkage() != LLVM::Linkage::ExternWeak)
return op.emitOpError()
<< "external functions must have '"
<< stringifyLinkage(LLVM::Linkage::External) << "' or '"
<< stringifyLinkage(LLVM::Linkage::ExternWeak) << "' linkage";
return success();
}
if (op.isVarArg())
return op.emitOpError("only external functions can be variadic");
unsigned numArguments = op.getType().getNumParams();
Block &entryBlock = op.front();
for (unsigned i = 0; i < numArguments; ++i) {
Type argType = entryBlock.getArgument(i).getType();
if (!isCompatibleType(argType))
return op.emitOpError("entry block argument #")
<< i << " is not of LLVM type";
if (op.getType().getParamType(i) != argType)
return op.emitOpError("the type of entry block argument #")
<< i << " does not match the function signature";
}
return success();
}
//===----------------------------------------------------------------------===//
// Verification for LLVM::ConstantOp.
//===----------------------------------------------------------------------===//
static LogicalResult verify(LLVM::ConstantOp op) {
if (StringAttr sAttr = op.getValue().dyn_cast<StringAttr>()) {
auto arrayType = op.getType().dyn_cast<LLVMArrayType>();
if (!arrayType || arrayType.getNumElements() != sAttr.getValue().size() ||
!arrayType.getElementType().isInteger(8)) {
return op->emitOpError()
<< "expected array type of " << sAttr.getValue().size()
<< " i8 elements for the string constant";
}
return success();
}
if (auto structType = op.getType().dyn_cast<LLVMStructType>()) {
if (structType.getBody().size() != 2 ||
structType.getBody()[0] != structType.getBody()[1]) {
return op.emitError() << "expected struct type with two elements of the "
"same type, the type of a complex constant";
}
auto arrayAttr = op.getValue().dyn_cast<ArrayAttr>();
if (!arrayAttr || arrayAttr.size() != 2 ||
arrayAttr[0].getType() != arrayAttr[1].getType()) {
return op.emitOpError() << "expected array attribute with two elements, "
"representing a complex constant";
}
Type elementType = structType.getBody()[0];
if (!elementType
.isa<IntegerType, Float16Type, Float32Type, Float64Type>()) {
return op.emitError()
<< "expected struct element types to be floating point type or "
"integer type";
}
return success();
}
if (!op.getValue().isa<IntegerAttr, ArrayAttr, FloatAttr, ElementsAttr>())
return op.emitOpError()
<< "only supports integer, float, string or elements attributes";
return success();
}
//===----------------------------------------------------------------------===//
// Utility functions for parsing atomic ops
//===----------------------------------------------------------------------===//
// Helper function to parse a keyword into the specified attribute named by
// `attrName`. The keyword must match one of the string values defined by the
// AtomicBinOp enum. The resulting I64 attribute is added to the `result`
// state.
static ParseResult parseAtomicBinOp(OpAsmParser &parser, OperationState &result,
StringRef attrName) {
llvm::SMLoc loc;
StringRef keyword;
if (parser.getCurrentLocation(&loc) || parser.parseKeyword(&keyword))
return failure();
// Replace the keyword `keyword` with an integer attribute.
auto kind = symbolizeAtomicBinOp(keyword);
if (!kind) {
return parser.emitError(loc)
<< "'" << keyword << "' is an incorrect value of the '" << attrName
<< "' attribute";
}
auto value = static_cast<int64_t>(kind.getValue());
auto attr = parser.getBuilder().getI64IntegerAttr(value);
result.addAttribute(attrName, attr);
return success();
}
// Helper function to parse a keyword into the specified attribute named by
// `attrName`. The keyword must match one of the string values defined by the
// AtomicOrdering enum. The resulting I64 attribute is added to the `result`
// state.
static ParseResult parseAtomicOrdering(OpAsmParser &parser,
OperationState &result,
StringRef attrName) {
llvm::SMLoc loc;
StringRef ordering;
if (parser.getCurrentLocation(&loc) || parser.parseKeyword(&ordering))
return failure();
// Replace the keyword `ordering` with an integer attribute.
auto kind = symbolizeAtomicOrdering(ordering);
if (!kind) {
return parser.emitError(loc)
<< "'" << ordering << "' is an incorrect value of the '" << attrName
<< "' attribute";
}
auto value = static_cast<int64_t>(kind.getValue());
auto attr = parser.getBuilder().getI64IntegerAttr(value);
result.addAttribute(attrName, attr);
return success();
}
//===----------------------------------------------------------------------===//
// Printer, parser and verifier for LLVM::AtomicRMWOp.
//===----------------------------------------------------------------------===//
static void printAtomicRMWOp(OpAsmPrinter &p, AtomicRMWOp &op) {
p << ' ' << stringifyAtomicBinOp(op.getBinOp()) << ' ' << op.getPtr() << ", "
<< op.getVal() << ' ' << stringifyAtomicOrdering(op.getOrdering()) << ' ';
p.printOptionalAttrDict(op->getAttrs(), {"bin_op", "ordering"});
p << " : " << op.getRes().getType();
}
// <operation> ::= `llvm.atomicrmw` keyword ssa-use `,` ssa-use keyword
// attribute-dict? `:` type
static ParseResult parseAtomicRMWOp(OpAsmParser &parser,
OperationState &result) {
Type type;
OpAsmParser::OperandType ptr, val;
if (parseAtomicBinOp(parser, result, "bin_op") || parser.parseOperand(ptr) ||
parser.parseComma() || parser.parseOperand(val) ||
parseAtomicOrdering(parser, result, "ordering") ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColonType(type) ||
parser.resolveOperand(ptr, LLVM::LLVMPointerType::get(type),
result.operands) ||
parser.resolveOperand(val, type, result.operands))
return failure();
result.addTypes(type);
return success();
}
static LogicalResult verify(AtomicRMWOp op) {
auto ptrType = op.getPtr().getType().cast<LLVM::LLVMPointerType>();
auto valType = op.getVal().getType();
if (valType != ptrType.getElementType())
return op.emitOpError("expected LLVM IR element type for operand #0 to "
"match type for operand #1");
auto resType = op.getRes().getType();
if (resType != valType)
return op.emitOpError(
"expected LLVM IR result type to match type for operand #1");
if (op.getBinOp() == AtomicBinOp::fadd ||
op.getBinOp() == AtomicBinOp::fsub) {
if (!mlir::LLVM::isCompatibleFloatingPointType(valType))
return op.emitOpError("expected LLVM IR floating point type");
} else if (op.getBinOp() == AtomicBinOp::xchg) {
auto intType = valType.dyn_cast<IntegerType>();
unsigned intBitWidth = intType ? intType.getWidth() : 0;
if (intBitWidth != 8 && intBitWidth != 16 && intBitWidth != 32 &&
intBitWidth != 64 && !valType.isa<BFloat16Type>() &&
!valType.isa<Float16Type>() && !valType.isa<Float32Type>() &&
!valType.isa<Float64Type>())
return op.emitOpError("unexpected LLVM IR type for 'xchg' bin_op");
} else {
auto intType = valType.dyn_cast<IntegerType>();
unsigned intBitWidth = intType ? intType.getWidth() : 0;
if (intBitWidth != 8 && intBitWidth != 16 && intBitWidth != 32 &&
intBitWidth != 64)
return op.emitOpError("expected LLVM IR integer type");
}
if (static_cast<unsigned>(op.getOrdering()) <
static_cast<unsigned>(AtomicOrdering::monotonic))
return op.emitOpError()
<< "expected at least '"
<< stringifyAtomicOrdering(AtomicOrdering::monotonic)
<< "' ordering";
return success();
}
//===----------------------------------------------------------------------===//
// Printer, parser and verifier for LLVM::AtomicCmpXchgOp.
//===----------------------------------------------------------------------===//
static void printAtomicCmpXchgOp(OpAsmPrinter &p, AtomicCmpXchgOp &op) {
p << ' ' << op.getPtr() << ", " << op.getCmp() << ", " << op.getVal() << ' '
<< stringifyAtomicOrdering(op.getSuccessOrdering()) << ' '
<< stringifyAtomicOrdering(op.getFailureOrdering());
p.printOptionalAttrDict(op->getAttrs(),
{"success_ordering", "failure_ordering"});
p << " : " << op.getVal().getType();
}
// <operation> ::= `llvm.cmpxchg` ssa-use `,` ssa-use `,` ssa-use
// keyword keyword attribute-dict? `:` type
static ParseResult parseAtomicCmpXchgOp(OpAsmParser &parser,
OperationState &result) {
auto &builder = parser.getBuilder();
Type type;
OpAsmParser::OperandType ptr, cmp, val;
if (parser.parseOperand(ptr) || parser.parseComma() ||
parser.parseOperand(cmp) || parser.parseComma() ||
parser.parseOperand(val) ||
parseAtomicOrdering(parser, result, "success_ordering") ||
parseAtomicOrdering(parser, result, "failure_ordering") ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColonType(type) ||
parser.resolveOperand(ptr, LLVM::LLVMPointerType::get(type),
result.operands) ||
parser.resolveOperand(cmp, type, result.operands) ||
parser.resolveOperand(val, type, result.operands))
return failure();
auto boolType = IntegerType::get(builder.getContext(), 1);
auto resultType =
LLVMStructType::getLiteral(builder.getContext(), {type, boolType});
result.addTypes(resultType);
return success();
}
static LogicalResult verify(AtomicCmpXchgOp op) {
auto ptrType = op.getPtr().getType().cast<LLVM::LLVMPointerType>();
if (!ptrType)
return op.emitOpError("expected LLVM IR pointer type for operand #0");
auto cmpType = op.getCmp().getType();
auto valType = op.getVal().getType();
if (cmpType != ptrType.getElementType() || cmpType != valType)
return op.emitOpError("expected LLVM IR element type for operand #0 to "
"match type for all other operands");
auto intType = valType.dyn_cast<IntegerType>();
unsigned intBitWidth = intType ? intType.getWidth() : 0;
if (!valType.isa<LLVMPointerType>() && intBitWidth != 8 &&
intBitWidth != 16 && intBitWidth != 32 && intBitWidth != 64 &&
!valType.isa<BFloat16Type>() && !valType.isa<Float16Type>() &&
!valType.isa<Float32Type>() && !valType.isa<Float64Type>())
return op.emitOpError("unexpected LLVM IR type");
if (op.getSuccessOrdering() < AtomicOrdering::monotonic ||
op.getFailureOrdering() < AtomicOrdering::monotonic)
return op.emitOpError("ordering must be at least 'monotonic'");
if (op.getFailureOrdering() == AtomicOrdering::release ||
op.getFailureOrdering() == AtomicOrdering::acq_rel)
return op.emitOpError("failure ordering cannot be 'release' or 'acq_rel'");
return success();
}
//===----------------------------------------------------------------------===//
// Printer, parser and verifier for LLVM::FenceOp.
//===----------------------------------------------------------------------===//
// <operation> ::= `llvm.fence` (`syncscope(`strAttr`)`)? keyword
// attribute-dict?
static ParseResult parseFenceOp(OpAsmParser &parser, OperationState &result) {
StringAttr sScope;
StringRef syncscopeKeyword = "syncscope";
if (!failed(parser.parseOptionalKeyword(syncscopeKeyword))) {
if (parser.parseLParen() ||
parser.parseAttribute(sScope, syncscopeKeyword, result.attributes) ||
parser.parseRParen())
return failure();
} else {
result.addAttribute(syncscopeKeyword,
parser.getBuilder().getStringAttr(""));
}
if (parseAtomicOrdering(parser, result, "ordering") ||
parser.parseOptionalAttrDict(result.attributes))
return failure();
return success();
}
static void printFenceOp(OpAsmPrinter &p, FenceOp &op) {
StringRef syncscopeKeyword = "syncscope";
p << ' ';
if (!op->getAttr(syncscopeKeyword).cast<StringAttr>().getValue().empty())
p << "syncscope(" << op->getAttr(syncscopeKeyword) << ") ";
p << stringifyAtomicOrdering(op.getOrdering());
}
static LogicalResult verify(FenceOp &op) {
if (op.getOrdering() == AtomicOrdering::not_atomic ||
op.getOrdering() == AtomicOrdering::unordered ||
op.getOrdering() == AtomicOrdering::monotonic)
return op.emitOpError("can be given only acquire, release, acq_rel, "
"and seq_cst orderings");
return success();
}
//===----------------------------------------------------------------------===//
// LLVMDialect initialization, type parsing, and registration.
//===----------------------------------------------------------------------===//
void LLVMDialect::initialize() {
addAttributes<FMFAttr, LinkageAttr, LoopOptionsAttr>();
// clang-format off
addTypes<LLVMVoidType,
LLVMPPCFP128Type,
LLVMX86MMXType,
LLVMTokenType,
LLVMLabelType,
LLVMMetadataType,
LLVMFunctionType,
LLVMPointerType,
LLVMFixedVectorType,
LLVMScalableVectorType,
LLVMArrayType,
LLVMStructType>();
// clang-format on
addOperations<
#define GET_OP_LIST
#include "mlir/Dialect/LLVMIR/LLVMOps.cpp.inc"
>();
// Support unknown operations because not all LLVM operations are registered.
allowUnknownOperations();
}
#define GET_OP_CLASSES
#include "mlir/Dialect/LLVMIR/LLVMOps.cpp.inc"
/// Parse a type registered to this dialect.
Type LLVMDialect::parseType(DialectAsmParser &parser) const {
return detail::parseType(parser);
}
/// Print a type registered to this dialect.
void LLVMDialect::printType(Type type, DialectAsmPrinter &os) const {
return detail::printType(type, os);
}
LogicalResult LLVMDialect::verifyDataLayoutString(
StringRef descr, llvm::function_ref<void(const Twine &)> reportError) {
llvm::Expected<llvm::DataLayout> maybeDataLayout =
llvm::DataLayout::parse(descr);
if (maybeDataLayout)
return success();
std::string message;
llvm::raw_string_ostream messageStream(message);
llvm::logAllUnhandledErrors(maybeDataLayout.takeError(), messageStream);
reportError("invalid data layout descriptor: " + messageStream.str());
return failure();
}
/// Verify LLVM dialect attributes.
LogicalResult LLVMDialect::verifyOperationAttribute(Operation *op,
NamedAttribute attr) {
// If the `llvm.loop` attribute is present, enforce the following structure,
// which the module translation can assume.
if (attr.getName() == LLVMDialect::getLoopAttrName()) {
auto loopAttr = attr.getValue().dyn_cast<DictionaryAttr>();
if (!loopAttr)
return op->emitOpError() << "expected '" << LLVMDialect::getLoopAttrName()
<< "' to be a dictionary attribute";
Optional<NamedAttribute> parallelAccessGroup =
loopAttr.getNamed(LLVMDialect::getParallelAccessAttrName());
if (parallelAccessGroup.hasValue()) {
auto accessGroups = parallelAccessGroup->getValue().dyn_cast<ArrayAttr>();
if (!accessGroups)
return op->emitOpError()
<< "expected '" << LLVMDialect::getParallelAccessAttrName()
<< "' to be an array attribute";
for (Attribute attr : accessGroups) {
auto accessGroupRef = attr.dyn_cast<SymbolRefAttr>();
if (!accessGroupRef)
return op->emitOpError()
<< "expected '" << attr << "' to be a symbol reference";
StringAttr metadataName = accessGroupRef.getRootReference();
auto metadataOp =
SymbolTable::lookupNearestSymbolFrom<LLVM::MetadataOp>(
op->getParentOp(), metadataName);
if (!metadataOp)
return op->emitOpError()
<< "expected '" << attr << "' to reference a metadata op";
StringAttr accessGroupName = accessGroupRef.getLeafReference();
Operation *accessGroupOp =
SymbolTable::lookupNearestSymbolFrom(metadataOp, accessGroupName);
if (!accessGroupOp)
return op->emitOpError()
<< "expected '" << attr << "' to reference an access_group op";
}
}
Optional<NamedAttribute> loopOptions =
loopAttr.getNamed(LLVMDialect::getLoopOptionsAttrName());
if (loopOptions.hasValue() &&
!loopOptions->getValue().isa<LoopOptionsAttr>())
return op->emitOpError()
<< "expected '" << LLVMDialect::getLoopOptionsAttrName()
<< "' to be a `loopopts` attribute";
}
// If the data layout attribute is present, it must use the LLVM data layout
// syntax. Try parsing it and report errors in case of failure. Users of this
// attribute may assume it is well-formed and can pass it to the (asserting)
// llvm::DataLayout constructor.
if (attr.getName() != LLVM::LLVMDialect::getDataLayoutAttrName())
return success();
if (auto stringAttr = attr.getValue().dyn_cast<StringAttr>())
return verifyDataLayoutString(
stringAttr.getValue(),
[op](const Twine &message) { op->emitOpError() << message.str(); });
return op->emitOpError() << "expected '"
<< LLVM::LLVMDialect::getDataLayoutAttrName()
<< "' to be a string attribute";
}
/// Verify LLVMIR function argument attributes.
LogicalResult LLVMDialect::verifyRegionArgAttribute(Operation *op,
unsigned regionIdx,
unsigned argIdx,
NamedAttribute argAttr) {
// Check that llvm.noalias is a unit attribute.
if (argAttr.getName() == LLVMDialect::getNoAliasAttrName() &&
!argAttr.getValue().isa<UnitAttr>())
return op->emitError()
<< "expected llvm.noalias argument attribute to be a unit attribute";
// Check that llvm.align is an integer attribute.
if (argAttr.getName() == LLVMDialect::getAlignAttrName() &&
!argAttr.getValue().isa<IntegerAttr>())
return op->emitError()
<< "llvm.align argument attribute of non integer type";
return success();
}
//===----------------------------------------------------------------------===//
// Utility functions.
//===----------------------------------------------------------------------===//
Value mlir::LLVM::createGlobalString(Location loc, OpBuilder &builder,
StringRef name, StringRef value,
LLVM::Linkage linkage) {
assert(builder.getInsertionBlock() &&
builder.getInsertionBlock()->getParentOp() &&
"expected builder to point to a block constrained in an op");
auto module =
builder.getInsertionBlock()->getParentOp()->getParentOfType<ModuleOp>();
assert(module && "builder points to an op outside of a module");
// Create the global at the entry of the module.
OpBuilder moduleBuilder(module.getBodyRegion(), builder.getListener());
MLIRContext *ctx = builder.getContext();
auto type = LLVM::LLVMArrayType::get(IntegerType::get(ctx, 8), value.size());
auto global = moduleBuilder.create<LLVM::GlobalOp>(
loc, type, /*isConstant=*/true, linkage, name,
builder.getStringAttr(value), /*alignment=*/0);
// Get the pointer to the first character in the global string.
Value globalPtr = builder.create<LLVM::AddressOfOp>(loc, global);
Value cst0 = builder.create<LLVM::ConstantOp>(
loc, IntegerType::get(ctx, 64),
builder.getIntegerAttr(builder.getIndexType(), 0));
return builder.create<LLVM::GEPOp>(
loc, LLVM::LLVMPointerType::get(IntegerType::get(ctx, 8)), globalPtr,
ValueRange{cst0, cst0});
}
bool mlir::LLVM::satisfiesLLVMModule(Operation *op) {
return op->hasTrait<OpTrait::SymbolTable>() &&
op->hasTrait<OpTrait::IsIsolatedFromAbove>();
}
static constexpr const FastmathFlags fastmathFlagsList[] = {
// clang-format off
FastmathFlags::nnan,
FastmathFlags::ninf,
FastmathFlags::nsz,
FastmathFlags::arcp,
FastmathFlags::contract,
FastmathFlags::afn,
FastmathFlags::reassoc,
FastmathFlags::fast,
// clang-format on
};
void FMFAttr::print(AsmPrinter &printer) const {
printer << "<";
auto flags = llvm::make_filter_range(fastmathFlagsList, [&](auto flag) {
return bitEnumContains(this->getFlags(), flag);
});
llvm::interleaveComma(flags, printer,
[&](auto flag) { printer << stringifyEnum(flag); });
printer << ">";
}
Attribute FMFAttr::parse(AsmParser &parser, Type type) {
if (failed(parser.parseLess()))
return {};
FastmathFlags flags = {};
if (failed(parser.parseOptionalGreater())) {
do {
StringRef elemName;
if (failed(parser.parseKeyword(&elemName)))
return {};
auto elem = symbolizeFastmathFlags(elemName);
if (!elem) {
parser.emitError(parser.getNameLoc(), "Unknown fastmath flag: ")
<< elemName;
return {};
}
flags = flags | *elem;
} while (succeeded(parser.parseOptionalComma()));
if (failed(parser.parseGreater()))
return {};
}
return FMFAttr::get(parser.getContext(), flags);
}
void LinkageAttr::print(AsmPrinter &printer) const {
printer << "<";
if (static_cast<uint64_t>(getLinkage()) <= getMaxEnumValForLinkage())
printer << stringifyEnum(getLinkage());
else
printer << static_cast<uint64_t>(getLinkage());
printer << ">";
}
Attribute LinkageAttr::parse(AsmParser &parser, Type type) {
StringRef elemName;
if (parser.parseLess() || parser.parseKeyword(&elemName) ||
parser.parseGreater())
return {};
auto elem = linkage::symbolizeLinkage(elemName);
if (!elem) {
parser.emitError(parser.getNameLoc(), "Unknown linkage: ") << elemName;
return {};
}
Linkage linkage = *elem;
return LinkageAttr::get(parser.getContext(), linkage);
}
LoopOptionsAttrBuilder::LoopOptionsAttrBuilder(LoopOptionsAttr attr)
: options(attr.getOptions().begin(), attr.getOptions().end()) {}
template <typename T>
LoopOptionsAttrBuilder &LoopOptionsAttrBuilder::setOption(LoopOptionCase tag,
Optional<T> value) {
auto option = llvm::find_if(
options, [tag](auto option) { return option.first == tag; });
if (option != options.end()) {
if (value.hasValue())
option->second = *value;
else
options.erase(option);
} else {
options.push_back(LoopOptionsAttr::OptionValuePair(tag, *value));
}
return *this;
}
LoopOptionsAttrBuilder &
LoopOptionsAttrBuilder::setDisableLICM(Optional<bool> value) {
return setOption(LoopOptionCase::disable_licm, value);
}
/// Set the `interleave_count` option to the provided value. If no value
/// is provided the option is deleted.
LoopOptionsAttrBuilder &
LoopOptionsAttrBuilder::setInterleaveCount(Optional<uint64_t> count) {
return setOption(LoopOptionCase::interleave_count, count);
}
/// Set the `disable_unroll` option to the provided value. If no value
/// is provided the option is deleted.
LoopOptionsAttrBuilder &
LoopOptionsAttrBuilder::setDisableUnroll(Optional<bool> value) {
return setOption(LoopOptionCase::disable_unroll, value);
}
/// Set the `disable_pipeline` option to the provided value. If no value
/// is provided the option is deleted.
LoopOptionsAttrBuilder &
LoopOptionsAttrBuilder::setDisablePipeline(Optional<bool> value) {
return setOption(LoopOptionCase::disable_pipeline, value);
}
/// Set the `pipeline_initiation_interval` option to the provided value.
/// If no value is provided the option is deleted.
LoopOptionsAttrBuilder &LoopOptionsAttrBuilder::setPipelineInitiationInterval(
Optional<uint64_t> count) {
return setOption(LoopOptionCase::pipeline_initiation_interval, count);
}
template <typename T>
static Optional<T>
getOption(ArrayRef<std::pair<LoopOptionCase, int64_t>> options,
LoopOptionCase option) {
auto it =
lower_bound(options, option, [](auto optionPair, LoopOptionCase option) {
return optionPair.first < option;
});
if (it == options.end())
return {};
return static_cast<T>(it->second);
}
Optional<bool> LoopOptionsAttr::disableUnroll() {
return getOption<bool>(getOptions(), LoopOptionCase::disable_unroll);
}
Optional<bool> LoopOptionsAttr::disableLICM() {
return getOption<bool>(getOptions(), LoopOptionCase::disable_licm);
}
Optional<int64_t> LoopOptionsAttr::interleaveCount() {
return getOption<int64_t>(getOptions(), LoopOptionCase::interleave_count);
}
/// Build the LoopOptions Attribute from a sorted array of individual options.
LoopOptionsAttr LoopOptionsAttr::get(
MLIRContext *context,
ArrayRef<std::pair<LoopOptionCase, int64_t>> sortedOptions) {
assert(llvm::is_sorted(sortedOptions, llvm::less_first()) &&
"LoopOptionsAttr ctor expects a sorted options array");
return Base::get(context, sortedOptions);
}
/// Build the LoopOptions Attribute from a sorted array of individual options.
LoopOptionsAttr LoopOptionsAttr::get(MLIRContext *context,
LoopOptionsAttrBuilder &optionBuilders) {
llvm::sort(optionBuilders.options, llvm::less_first());
return Base::get(context, optionBuilders.options);
}
void LoopOptionsAttr::print(AsmPrinter &printer) const {
printer << "<";
llvm::interleaveComma(getOptions(), printer, [&](auto option) {
printer << stringifyEnum(option.first) << " = ";
switch (option.first) {
case LoopOptionCase::disable_licm:
case LoopOptionCase::disable_unroll:
case LoopOptionCase::disable_pipeline:
printer << (option.second ? "true" : "false");
break;
case LoopOptionCase::interleave_count:
case LoopOptionCase::pipeline_initiation_interval:
printer << option.second;
break;
}
});
printer << ">";
}
Attribute LoopOptionsAttr::parse(AsmParser &parser, Type type) {
if (failed(parser.parseLess()))
return {};
SmallVector<std::pair<LoopOptionCase, int64_t>> options;
llvm::SmallDenseSet<LoopOptionCase> seenOptions;
do {
StringRef optionName;
if (parser.parseKeyword(&optionName))
return {};
auto option = symbolizeLoopOptionCase(optionName);
if (!option) {
parser.emitError(parser.getNameLoc(), "unknown loop option: ")
<< optionName;
return {};
}
if (!seenOptions.insert(*option).second) {
parser.emitError(parser.getNameLoc(), "loop option present twice");
return {};
}
if (failed(parser.parseEqual()))
return {};
int64_t value;
switch (*option) {
case LoopOptionCase::disable_licm:
case LoopOptionCase::disable_unroll:
case LoopOptionCase::disable_pipeline:
if (succeeded(parser.parseOptionalKeyword("true")))
value = 1;
else if (succeeded(parser.parseOptionalKeyword("false")))
value = 0;
else {
parser.emitError(parser.getNameLoc(),
"expected boolean value 'true' or 'false'");
return {};
}
break;
case LoopOptionCase::interleave_count:
case LoopOptionCase::pipeline_initiation_interval:
if (failed(parser.parseInteger(value))) {
parser.emitError(parser.getNameLoc(), "expected integer value");
return {};
}
break;
}
options.push_back(std::make_pair(*option, value));
} while (succeeded(parser.parseOptionalComma()));
if (failed(parser.parseGreater()))
return {};
llvm::sort(options, llvm::less_first());
return get(parser.getContext(), options);
}
Attribute LLVMDialect::parseAttribute(DialectAsmParser &parser,
Type type) const {
if (type) {
parser.emitError(parser.getNameLoc(), "unexpected type");
return {};
}
StringRef attrKind;
if (parser.parseKeyword(&attrKind))
return {};
{
Attribute attr;
auto parseResult = generatedAttributeParser(parser, attrKind, type, attr);
if (parseResult.hasValue())
return attr;
}
parser.emitError(parser.getNameLoc(), "unknown attribute type: ") << attrKind;
return {};
}
void LLVMDialect::printAttribute(Attribute attr, DialectAsmPrinter &os) const {
if (succeeded(generatedAttributePrinter(attr, os)))
return;
llvm_unreachable("Unknown attribute type");
}