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SPIRVOps.cpp
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SPIRVOps.cpp
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//===- SPIRVOps.cpp - MLIR SPIR-V operations ------------------------------===//
//
// 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 operations in the SPIR-V dialect.
//
//===----------------------------------------------------------------------===//
#include "mlir/Dialect/SPIRV/IR/SPIRVOps.h"
#include "SPIRVOpUtils.h"
#include "SPIRVParsingUtils.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVAttributes.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVEnums.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVOpTraits.h"
#include "mlir/Dialect/SPIRV/IR/SPIRVTypes.h"
#include "mlir/Dialect/SPIRV/IR/TargetAndABI.h"
#include "mlir/IR/Builders.h"
#include "mlir/IR/BuiltinTypes.h"
#include "mlir/IR/Matchers.h"
#include "mlir/IR/OpDefinition.h"
#include "mlir/IR/OpImplementation.h"
#include "mlir/IR/Operation.h"
#include "mlir/IR/TypeUtilities.h"
#include "mlir/Interfaces/FunctionImplementation.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/TypeSwitch.h"
#include <cassert>
#include <numeric>
#include <optional>
#include <type_traits>
using namespace mlir;
using namespace mlir::spirv::AttrNames;
//===----------------------------------------------------------------------===//
// Common utility functions
//===----------------------------------------------------------------------===//
LogicalResult spirv::extractValueFromConstOp(Operation *op, int32_t &value) {
auto constOp = dyn_cast_or_null<spirv::ConstantOp>(op);
if (!constOp) {
return failure();
}
auto valueAttr = constOp.getValue();
auto integerValueAttr = llvm::dyn_cast<IntegerAttr>(valueAttr);
if (!integerValueAttr) {
return failure();
}
if (integerValueAttr.getType().isSignlessInteger())
value = integerValueAttr.getInt();
else
value = integerValueAttr.getSInt();
return success();
}
LogicalResult
spirv::verifyMemorySemantics(Operation *op,
spirv::MemorySemantics memorySemantics) {
// According to the SPIR-V specification:
// "Despite being a mask and allowing multiple bits to be combined, it is
// invalid for more than one of these four bits to be set: Acquire, Release,
// AcquireRelease, or SequentiallyConsistent. Requesting both Acquire and
// Release semantics is done by setting the AcquireRelease bit, not by setting
// two bits."
auto atMostOneInSet = spirv::MemorySemantics::Acquire |
spirv::MemorySemantics::Release |
spirv::MemorySemantics::AcquireRelease |
spirv::MemorySemantics::SequentiallyConsistent;
auto bitCount =
llvm::popcount(static_cast<uint32_t>(memorySemantics & atMostOneInSet));
if (bitCount > 1) {
return op->emitError(
"expected at most one of these four memory constraints "
"to be set: `Acquire`, `Release`,"
"`AcquireRelease` or `SequentiallyConsistent`");
}
return success();
}
void spirv::printVariableDecorations(Operation *op, OpAsmPrinter &printer,
SmallVectorImpl<StringRef> &elidedAttrs) {
// Print optional descriptor binding
auto descriptorSetName = llvm::convertToSnakeFromCamelCase(
stringifyDecoration(spirv::Decoration::DescriptorSet));
auto bindingName = llvm::convertToSnakeFromCamelCase(
stringifyDecoration(spirv::Decoration::Binding));
auto descriptorSet = op->getAttrOfType<IntegerAttr>(descriptorSetName);
auto binding = op->getAttrOfType<IntegerAttr>(bindingName);
if (descriptorSet && binding) {
elidedAttrs.push_back(descriptorSetName);
elidedAttrs.push_back(bindingName);
printer << " bind(" << descriptorSet.getInt() << ", " << binding.getInt()
<< ")";
}
// Print BuiltIn attribute if present
auto builtInName = llvm::convertToSnakeFromCamelCase(
stringifyDecoration(spirv::Decoration::BuiltIn));
if (auto builtin = op->getAttrOfType<StringAttr>(builtInName)) {
printer << " " << builtInName << "(\"" << builtin.getValue() << "\")";
elidedAttrs.push_back(builtInName);
}
printer.printOptionalAttrDict(op->getAttrs(), elidedAttrs);
}
static ParseResult parseOneResultSameOperandTypeOp(OpAsmParser &parser,
OperationState &result) {
SmallVector<OpAsmParser::UnresolvedOperand, 2> ops;
Type type;
// If the operand list is in-between parentheses, then we have a generic form.
// (see the fallback in `printOneResultOp`).
SMLoc loc = parser.getCurrentLocation();
if (!parser.parseOptionalLParen()) {
if (parser.parseOperandList(ops) || parser.parseRParen() ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColon() || parser.parseType(type))
return failure();
auto fnType = llvm::dyn_cast<FunctionType>(type);
if (!fnType) {
parser.emitError(loc, "expected function type");
return failure();
}
if (parser.resolveOperands(ops, fnType.getInputs(), loc, result.operands))
return failure();
result.addTypes(fnType.getResults());
return success();
}
return failure(parser.parseOperandList(ops) ||
parser.parseOptionalAttrDict(result.attributes) ||
parser.parseColonType(type) ||
parser.resolveOperands(ops, type, result.operands) ||
parser.addTypeToList(type, result.types));
}
static void printOneResultOp(Operation *op, OpAsmPrinter &p) {
assert(op->getNumResults() == 1 && "op should have one result");
// If not all the operand and result types are the same, just use the
// generic assembly form to avoid omitting information in printing.
auto resultType = op->getResult(0).getType();
if (llvm::any_of(op->getOperandTypes(),
[&](Type type) { return type != resultType; })) {
p.printGenericOp(op, /*printOpName=*/false);
return;
}
p << ' ';
p.printOperands(op->getOperands());
p.printOptionalAttrDict(op->getAttrs());
// Now we can output only one type for all operands and the result.
p << " : " << resultType;
}
template <typename Op>
static LogicalResult verifyImageOperands(Op imageOp,
spirv::ImageOperandsAttr attr,
Operation::operand_range operands) {
if (!attr) {
if (operands.empty())
return success();
return imageOp.emitError("the Image Operands should encode what operands "
"follow, as per Image Operands");
}
// TODO: Add the validation rules for the following Image Operands.
spirv::ImageOperands noSupportOperands =
spirv::ImageOperands::Bias | spirv::ImageOperands::Lod |
spirv::ImageOperands::Grad | spirv::ImageOperands::ConstOffset |
spirv::ImageOperands::Offset | spirv::ImageOperands::ConstOffsets |
spirv::ImageOperands::Sample | spirv::ImageOperands::MinLod |
spirv::ImageOperands::MakeTexelAvailable |
spirv::ImageOperands::MakeTexelVisible |
spirv::ImageOperands::SignExtend | spirv::ImageOperands::ZeroExtend;
if (spirv::bitEnumContainsAll(attr.getValue(), noSupportOperands))
llvm_unreachable("unimplemented operands of Image Operands");
return success();
}
template <typename BlockReadWriteOpTy>
static LogicalResult verifyBlockReadWritePtrAndValTypes(BlockReadWriteOpTy op,
Value ptr, Value val) {
auto valType = val.getType();
if (auto valVecTy = llvm::dyn_cast<VectorType>(valType))
valType = valVecTy.getElementType();
if (valType !=
llvm::cast<spirv::PointerType>(ptr.getType()).getPointeeType()) {
return op.emitOpError("mismatch in result type and pointer type");
}
return success();
}
/// Walks the given type hierarchy with the given indices, potentially down
/// to component granularity, to select an element type. Returns null type and
/// emits errors with the given loc on failure.
static Type
getElementType(Type type, ArrayRef<int32_t> indices,
function_ref<InFlightDiagnostic(StringRef)> emitErrorFn) {
if (indices.empty()) {
emitErrorFn("expected at least one index for spirv.CompositeExtract");
return nullptr;
}
for (auto index : indices) {
if (auto cType = llvm::dyn_cast<spirv::CompositeType>(type)) {
if (cType.hasCompileTimeKnownNumElements() &&
(index < 0 ||
static_cast<uint64_t>(index) >= cType.getNumElements())) {
emitErrorFn("index ") << index << " out of bounds for " << type;
return nullptr;
}
type = cType.getElementType(index);
} else {
emitErrorFn("cannot extract from non-composite type ")
<< type << " with index " << index;
return nullptr;
}
}
return type;
}
static Type
getElementType(Type type, Attribute indices,
function_ref<InFlightDiagnostic(StringRef)> emitErrorFn) {
auto indicesArrayAttr = llvm::dyn_cast<ArrayAttr>(indices);
if (!indicesArrayAttr) {
emitErrorFn("expected a 32-bit integer array attribute for 'indices'");
return nullptr;
}
if (indicesArrayAttr.empty()) {
emitErrorFn("expected at least one index for spirv.CompositeExtract");
return nullptr;
}
SmallVector<int32_t, 2> indexVals;
for (auto indexAttr : indicesArrayAttr) {
auto indexIntAttr = llvm::dyn_cast<IntegerAttr>(indexAttr);
if (!indexIntAttr) {
emitErrorFn("expected an 32-bit integer for index, but found '")
<< indexAttr << "'";
return nullptr;
}
indexVals.push_back(indexIntAttr.getInt());
}
return getElementType(type, indexVals, emitErrorFn);
}
static Type getElementType(Type type, Attribute indices, Location loc) {
auto errorFn = [&](StringRef err) -> InFlightDiagnostic {
return ::mlir::emitError(loc, err);
};
return getElementType(type, indices, errorFn);
}
static Type getElementType(Type type, Attribute indices, OpAsmParser &parser,
SMLoc loc) {
auto errorFn = [&](StringRef err) -> InFlightDiagnostic {
return parser.emitError(loc, err);
};
return getElementType(type, indices, errorFn);
}
template <typename ExtendedBinaryOp>
static LogicalResult verifyArithmeticExtendedBinaryOp(ExtendedBinaryOp op) {
auto resultType = llvm::cast<spirv::StructType>(op.getType());
if (resultType.getNumElements() != 2)
return op.emitOpError("expected result struct type containing two members");
if (!llvm::all_equal({op.getOperand1().getType(), op.getOperand2().getType(),
resultType.getElementType(0),
resultType.getElementType(1)}))
return op.emitOpError(
"expected all operand types and struct member types are the same");
return success();
}
static ParseResult parseArithmeticExtendedBinaryOp(OpAsmParser &parser,
OperationState &result) {
SmallVector<OpAsmParser::UnresolvedOperand, 2> operands;
if (parser.parseOptionalAttrDict(result.attributes) ||
parser.parseOperandList(operands) || parser.parseColon())
return failure();
Type resultType;
SMLoc loc = parser.getCurrentLocation();
if (parser.parseType(resultType))
return failure();
auto structType = llvm::dyn_cast<spirv::StructType>(resultType);
if (!structType || structType.getNumElements() != 2)
return parser.emitError(loc, "expected spirv.struct type with two members");
SmallVector<Type, 2> operandTypes(2, structType.getElementType(0));
if (parser.resolveOperands(operands, operandTypes, loc, result.operands))
return failure();
result.addTypes(resultType);
return success();
}
static void printArithmeticExtendedBinaryOp(Operation *op,
OpAsmPrinter &printer) {
printer << ' ';
printer.printOptionalAttrDict(op->getAttrs());
printer.printOperands(op->getOperands());
printer << " : " << op->getResultTypes().front();
}
static LogicalResult verifyShiftOp(Operation *op) {
if (op->getOperand(0).getType() != op->getResult(0).getType()) {
return op->emitError("expected the same type for the first operand and "
"result, but provided ")
<< op->getOperand(0).getType() << " and "
<< op->getResult(0).getType();
}
return success();
}
//===----------------------------------------------------------------------===//
// spirv.mlir.addressof
//===----------------------------------------------------------------------===//
void spirv::AddressOfOp::build(OpBuilder &builder, OperationState &state,
spirv::GlobalVariableOp var) {
build(builder, state, var.getType(), SymbolRefAttr::get(var));
}
LogicalResult spirv::AddressOfOp::verify() {
auto varOp = dyn_cast_or_null<spirv::GlobalVariableOp>(
SymbolTable::lookupNearestSymbolFrom((*this)->getParentOp(),
getVariableAttr()));
if (!varOp) {
return emitOpError("expected spirv.GlobalVariable symbol");
}
if (getPointer().getType() != varOp.getType()) {
return emitOpError(
"result type mismatch with the referenced global variable's type");
}
return success();
}
//===----------------------------------------------------------------------===//
// spirv.CompositeConstruct
//===----------------------------------------------------------------------===//
LogicalResult spirv::CompositeConstructOp::verify() {
operand_range constituents = this->getConstituents();
// There are 4 cases with varying verification rules:
// 1. Cooperative Matrices (1 constituent)
// 2. Structs (1 constituent for each member)
// 3. Arrays (1 constituent for each array element)
// 4. Vectors (1 constituent (sub-)element for each vector element)
auto coopElementType =
llvm::TypeSwitch<Type, Type>(getType())
.Case<spirv::CooperativeMatrixType, spirv::JointMatrixINTELType>(
[](auto coopType) { return coopType.getElementType(); })
.Default([](Type) { return nullptr; });
// Case 1. -- matrices.
if (coopElementType) {
if (constituents.size() != 1)
return emitOpError("has incorrect number of operands: expected ")
<< "1, but provided " << constituents.size();
if (coopElementType != constituents.front().getType())
return emitOpError("operand type mismatch: expected operand type ")
<< coopElementType << ", but provided "
<< constituents.front().getType();
return success();
}
// Case 2./3./4. -- number of constituents matches the number of elements.
auto cType = llvm::cast<spirv::CompositeType>(getType());
if (constituents.size() == cType.getNumElements()) {
for (auto index : llvm::seq<uint32_t>(0, constituents.size())) {
if (constituents[index].getType() != cType.getElementType(index)) {
return emitOpError("operand type mismatch: expected operand type ")
<< cType.getElementType(index) << ", but provided "
<< constituents[index].getType();
}
}
return success();
}
// Case 4. -- check that all constituents add up tp the expected vector type.
auto resultType = llvm::dyn_cast<VectorType>(cType);
if (!resultType)
return emitOpError(
"expected to return a vector or cooperative matrix when the number of "
"constituents is less than what the result needs");
SmallVector<unsigned> sizes;
for (Value component : constituents) {
if (!llvm::isa<VectorType>(component.getType()) &&
!component.getType().isIntOrFloat())
return emitOpError("operand type mismatch: expected operand to have "
"a scalar or vector type, but provided ")
<< component.getType();
Type elementType = component.getType();
if (auto vectorType = llvm::dyn_cast<VectorType>(component.getType())) {
sizes.push_back(vectorType.getNumElements());
elementType = vectorType.getElementType();
} else {
sizes.push_back(1);
}
if (elementType != resultType.getElementType())
return emitOpError("operand element type mismatch: expected to be ")
<< resultType.getElementType() << ", but provided " << elementType;
}
unsigned totalCount = std::accumulate(sizes.begin(), sizes.end(), 0);
if (totalCount != cType.getNumElements())
return emitOpError("has incorrect number of operands: expected ")
<< cType.getNumElements() << ", but provided " << totalCount;
return success();
}
//===----------------------------------------------------------------------===//
// spirv.CompositeExtractOp
//===----------------------------------------------------------------------===//
void spirv::CompositeExtractOp::build(OpBuilder &builder, OperationState &state,
Value composite,
ArrayRef<int32_t> indices) {
auto indexAttr = builder.getI32ArrayAttr(indices);
auto elementType =
getElementType(composite.getType(), indexAttr, state.location);
if (!elementType) {
return;
}
build(builder, state, elementType, composite, indexAttr);
}
ParseResult spirv::CompositeExtractOp::parse(OpAsmParser &parser,
OperationState &result) {
OpAsmParser::UnresolvedOperand compositeInfo;
Attribute indicesAttr;
StringRef indicesAttrName =
spirv::CompositeExtractOp::getIndicesAttrName(result.name);
Type compositeType;
SMLoc attrLocation;
if (parser.parseOperand(compositeInfo) ||
parser.getCurrentLocation(&attrLocation) ||
parser.parseAttribute(indicesAttr, indicesAttrName, result.attributes) ||
parser.parseColonType(compositeType) ||
parser.resolveOperand(compositeInfo, compositeType, result.operands)) {
return failure();
}
Type resultType =
getElementType(compositeType, indicesAttr, parser, attrLocation);
if (!resultType) {
return failure();
}
result.addTypes(resultType);
return success();
}
void spirv::CompositeExtractOp::print(OpAsmPrinter &printer) {
printer << ' ' << getComposite() << getIndices() << " : "
<< getComposite().getType();
}
LogicalResult spirv::CompositeExtractOp::verify() {
auto indicesArrayAttr = llvm::dyn_cast<ArrayAttr>(getIndices());
auto resultType =
getElementType(getComposite().getType(), indicesArrayAttr, getLoc());
if (!resultType)
return failure();
if (resultType != getType()) {
return emitOpError("invalid result type: expected ")
<< resultType << " but provided " << getType();
}
return success();
}
//===----------------------------------------------------------------------===//
// spirv.CompositeInsert
//===----------------------------------------------------------------------===//
void spirv::CompositeInsertOp::build(OpBuilder &builder, OperationState &state,
Value object, Value composite,
ArrayRef<int32_t> indices) {
auto indexAttr = builder.getI32ArrayAttr(indices);
build(builder, state, composite.getType(), object, composite, indexAttr);
}
ParseResult spirv::CompositeInsertOp::parse(OpAsmParser &parser,
OperationState &result) {
SmallVector<OpAsmParser::UnresolvedOperand, 2> operands;
Type objectType, compositeType;
Attribute indicesAttr;
StringRef indicesAttrName =
spirv::CompositeInsertOp::getIndicesAttrName(result.name);
auto loc = parser.getCurrentLocation();
return failure(
parser.parseOperandList(operands, 2) ||
parser.parseAttribute(indicesAttr, indicesAttrName, result.attributes) ||
parser.parseColonType(objectType) ||
parser.parseKeywordType("into", compositeType) ||
parser.resolveOperands(operands, {objectType, compositeType}, loc,
result.operands) ||
parser.addTypesToList(compositeType, result.types));
}
LogicalResult spirv::CompositeInsertOp::verify() {
auto indicesArrayAttr = llvm::dyn_cast<ArrayAttr>(getIndices());
auto objectType =
getElementType(getComposite().getType(), indicesArrayAttr, getLoc());
if (!objectType)
return failure();
if (objectType != getObject().getType()) {
return emitOpError("object operand type should be ")
<< objectType << ", but found " << getObject().getType();
}
if (getComposite().getType() != getType()) {
return emitOpError("result type should be the same as "
"the composite type, but found ")
<< getComposite().getType() << " vs " << getType();
}
return success();
}
void spirv::CompositeInsertOp::print(OpAsmPrinter &printer) {
printer << " " << getObject() << ", " << getComposite() << getIndices()
<< " : " << getObject().getType() << " into "
<< getComposite().getType();
}
//===----------------------------------------------------------------------===//
// spirv.Constant
//===----------------------------------------------------------------------===//
ParseResult spirv::ConstantOp::parse(OpAsmParser &parser,
OperationState &result) {
Attribute value;
StringRef valueAttrName = spirv::ConstantOp::getValueAttrName(result.name);
if (parser.parseAttribute(value, valueAttrName, result.attributes))
return failure();
Type type = NoneType::get(parser.getContext());
if (auto typedAttr = llvm::dyn_cast<TypedAttr>(value))
type = typedAttr.getType();
if (llvm::isa<NoneType, TensorType>(type)) {
if (parser.parseColonType(type))
return failure();
}
return parser.addTypeToList(type, result.types);
}
void spirv::ConstantOp::print(OpAsmPrinter &printer) {
printer << ' ' << getValue();
if (llvm::isa<spirv::ArrayType>(getType()))
printer << " : " << getType();
}
static LogicalResult verifyConstantType(spirv::ConstantOp op, Attribute value,
Type opType) {
if (llvm::isa<IntegerAttr, FloatAttr>(value)) {
auto valueType = llvm::cast<TypedAttr>(value).getType();
if (valueType != opType)
return op.emitOpError("result type (")
<< opType << ") does not match value type (" << valueType << ")";
return success();
}
if (llvm::isa<DenseIntOrFPElementsAttr, SparseElementsAttr>(value)) {
auto valueType = llvm::cast<TypedAttr>(value).getType();
if (valueType == opType)
return success();
auto arrayType = llvm::dyn_cast<spirv::ArrayType>(opType);
auto shapedType = llvm::dyn_cast<ShapedType>(valueType);
if (!arrayType)
return op.emitOpError("result or element type (")
<< opType << ") does not match value type (" << valueType
<< "), must be the same or spirv.array";
int numElements = arrayType.getNumElements();
auto opElemType = arrayType.getElementType();
while (auto t = llvm::dyn_cast<spirv::ArrayType>(opElemType)) {
numElements *= t.getNumElements();
opElemType = t.getElementType();
}
if (!opElemType.isIntOrFloat())
return op.emitOpError("only support nested array result type");
auto valueElemType = shapedType.getElementType();
if (valueElemType != opElemType) {
return op.emitOpError("result element type (")
<< opElemType << ") does not match value element type ("
<< valueElemType << ")";
}
if (numElements != shapedType.getNumElements()) {
return op.emitOpError("result number of elements (")
<< numElements << ") does not match value number of elements ("
<< shapedType.getNumElements() << ")";
}
return success();
}
if (auto arrayAttr = llvm::dyn_cast<ArrayAttr>(value)) {
auto arrayType = llvm::dyn_cast<spirv::ArrayType>(opType);
if (!arrayType)
return op.emitOpError(
"must have spirv.array result type for array value");
Type elemType = arrayType.getElementType();
for (Attribute element : arrayAttr.getValue()) {
// Verify array elements recursively.
if (failed(verifyConstantType(op, element, elemType)))
return failure();
}
return success();
}
return op.emitOpError("cannot have attribute: ") << value;
}
LogicalResult spirv::ConstantOp::verify() {
// ODS already generates checks to make sure the result type is valid. We just
// need to additionally check that the value's attribute type is consistent
// with the result type.
return verifyConstantType(*this, getValueAttr(), getType());
}
bool spirv::ConstantOp::isBuildableWith(Type type) {
// Must be valid SPIR-V type first.
if (!llvm::isa<spirv::SPIRVType>(type))
return false;
if (isa<SPIRVDialect>(type.getDialect())) {
// TODO: support constant struct
return llvm::isa<spirv::ArrayType>(type);
}
return true;
}
spirv::ConstantOp spirv::ConstantOp::getZero(Type type, Location loc,
OpBuilder &builder) {
if (auto intType = llvm::dyn_cast<IntegerType>(type)) {
unsigned width = intType.getWidth();
if (width == 1)
return builder.create<spirv::ConstantOp>(loc, type,
builder.getBoolAttr(false));
return builder.create<spirv::ConstantOp>(
loc, type, builder.getIntegerAttr(type, APInt(width, 0)));
}
if (auto floatType = llvm::dyn_cast<FloatType>(type)) {
return builder.create<spirv::ConstantOp>(
loc, type, builder.getFloatAttr(floatType, 0.0));
}
if (auto vectorType = llvm::dyn_cast<VectorType>(type)) {
Type elemType = vectorType.getElementType();
if (llvm::isa<IntegerType>(elemType)) {
return builder.create<spirv::ConstantOp>(
loc, type,
DenseElementsAttr::get(vectorType,
IntegerAttr::get(elemType, 0).getValue()));
}
if (llvm::isa<FloatType>(elemType)) {
return builder.create<spirv::ConstantOp>(
loc, type,
DenseFPElementsAttr::get(vectorType,
FloatAttr::get(elemType, 0.0).getValue()));
}
}
llvm_unreachable("unimplemented types for ConstantOp::getZero()");
}
spirv::ConstantOp spirv::ConstantOp::getOne(Type type, Location loc,
OpBuilder &builder) {
if (auto intType = llvm::dyn_cast<IntegerType>(type)) {
unsigned width = intType.getWidth();
if (width == 1)
return builder.create<spirv::ConstantOp>(loc, type,
builder.getBoolAttr(true));
return builder.create<spirv::ConstantOp>(
loc, type, builder.getIntegerAttr(type, APInt(width, 1)));
}
if (auto floatType = llvm::dyn_cast<FloatType>(type)) {
return builder.create<spirv::ConstantOp>(
loc, type, builder.getFloatAttr(floatType, 1.0));
}
if (auto vectorType = llvm::dyn_cast<VectorType>(type)) {
Type elemType = vectorType.getElementType();
if (llvm::isa<IntegerType>(elemType)) {
return builder.create<spirv::ConstantOp>(
loc, type,
DenseElementsAttr::get(vectorType,
IntegerAttr::get(elemType, 1).getValue()));
}
if (llvm::isa<FloatType>(elemType)) {
return builder.create<spirv::ConstantOp>(
loc, type,
DenseFPElementsAttr::get(vectorType,
FloatAttr::get(elemType, 1.0).getValue()));
}
}
llvm_unreachable("unimplemented types for ConstantOp::getOne()");
}
void mlir::spirv::ConstantOp::getAsmResultNames(
llvm::function_ref<void(mlir::Value, llvm::StringRef)> setNameFn) {
Type type = getType();
SmallString<32> specialNameBuffer;
llvm::raw_svector_ostream specialName(specialNameBuffer);
specialName << "cst";
IntegerType intTy = llvm::dyn_cast<IntegerType>(type);
if (IntegerAttr intCst = llvm::dyn_cast<IntegerAttr>(getValue())) {
if (intTy && intTy.getWidth() == 1) {
return setNameFn(getResult(), (intCst.getInt() ? "true" : "false"));
}
if (intTy.isSignless()) {
specialName << intCst.getInt();
} else if (intTy.isUnsigned()) {
specialName << intCst.getUInt();
} else {
specialName << intCst.getSInt();
}
}
if (intTy || llvm::isa<FloatType>(type)) {
specialName << '_' << type;
}
if (auto vecType = llvm::dyn_cast<VectorType>(type)) {
specialName << "_vec_";
specialName << vecType.getDimSize(0);
Type elementType = vecType.getElementType();
if (llvm::isa<IntegerType>(elementType) ||
llvm::isa<FloatType>(elementType)) {
specialName << "x" << elementType;
}
}
setNameFn(getResult(), specialName.str());
}
void mlir::spirv::AddressOfOp::getAsmResultNames(
llvm::function_ref<void(mlir::Value, llvm::StringRef)> setNameFn) {
SmallString<32> specialNameBuffer;
llvm::raw_svector_ostream specialName(specialNameBuffer);
specialName << getVariable() << "_addr";
setNameFn(getResult(), specialName.str());
}
//===----------------------------------------------------------------------===//
// spirv.ControlBarrierOp
//===----------------------------------------------------------------------===//
LogicalResult spirv::ControlBarrierOp::verify() {
return verifyMemorySemantics(getOperation(), getMemorySemantics());
}
//===----------------------------------------------------------------------===//
// spirv.EntryPoint
//===----------------------------------------------------------------------===//
void spirv::EntryPointOp::build(OpBuilder &builder, OperationState &state,
spirv::ExecutionModel executionModel,
spirv::FuncOp function,
ArrayRef<Attribute> interfaceVars) {
build(builder, state,
spirv::ExecutionModelAttr::get(builder.getContext(), executionModel),
SymbolRefAttr::get(function), builder.getArrayAttr(interfaceVars));
}
ParseResult spirv::EntryPointOp::parse(OpAsmParser &parser,
OperationState &result) {
spirv::ExecutionModel execModel;
SmallVector<OpAsmParser::UnresolvedOperand, 0> identifiers;
SmallVector<Type, 0> idTypes;
SmallVector<Attribute, 4> interfaceVars;
FlatSymbolRefAttr fn;
if (parseEnumStrAttr<spirv::ExecutionModelAttr>(execModel, parser, result) ||
parser.parseAttribute(fn, Type(), kFnNameAttrName, result.attributes)) {
return failure();
}
if (!parser.parseOptionalComma()) {
// Parse the interface variables
if (parser.parseCommaSeparatedList([&]() -> ParseResult {
// The name of the interface variable attribute isnt important
FlatSymbolRefAttr var;
NamedAttrList attrs;
if (parser.parseAttribute(var, Type(), "var_symbol", attrs))
return failure();
interfaceVars.push_back(var);
return success();
}))
return failure();
}
result.addAttribute(spirv::EntryPointOp::getInterfaceAttrName(result.name),
parser.getBuilder().getArrayAttr(interfaceVars));
return success();
}
void spirv::EntryPointOp::print(OpAsmPrinter &printer) {
printer << " \"" << stringifyExecutionModel(getExecutionModel()) << "\" ";
printer.printSymbolName(getFn());
auto interfaceVars = getInterface().getValue();
if (!interfaceVars.empty()) {
printer << ", ";
llvm::interleaveComma(interfaceVars, printer);
}
}
LogicalResult spirv::EntryPointOp::verify() {
// Checks for fn and interface symbol reference are done in spirv::ModuleOp
// verification.
return success();
}
//===----------------------------------------------------------------------===//
// spirv.ExecutionMode
//===----------------------------------------------------------------------===//
void spirv::ExecutionModeOp::build(OpBuilder &builder, OperationState &state,
spirv::FuncOp function,
spirv::ExecutionMode executionMode,
ArrayRef<int32_t> params) {
build(builder, state, SymbolRefAttr::get(function),
spirv::ExecutionModeAttr::get(builder.getContext(), executionMode),
builder.getI32ArrayAttr(params));
}
ParseResult spirv::ExecutionModeOp::parse(OpAsmParser &parser,
OperationState &result) {
spirv::ExecutionMode execMode;
Attribute fn;
if (parser.parseAttribute(fn, kFnNameAttrName, result.attributes) ||
parseEnumStrAttr<spirv::ExecutionModeAttr>(execMode, parser, result)) {
return failure();
}
SmallVector<int32_t, 4> values;
Type i32Type = parser.getBuilder().getIntegerType(32);
while (!parser.parseOptionalComma()) {
NamedAttrList attr;
Attribute value;
if (parser.parseAttribute(value, i32Type, "value", attr)) {
return failure();
}
values.push_back(llvm::cast<IntegerAttr>(value).getInt());
}
StringRef valuesAttrName =
spirv::ExecutionModeOp::getValuesAttrName(result.name);
result.addAttribute(valuesAttrName,
parser.getBuilder().getI32ArrayAttr(values));
return success();
}
void spirv::ExecutionModeOp::print(OpAsmPrinter &printer) {
printer << " ";
printer.printSymbolName(getFn());
printer << " \"" << stringifyExecutionMode(getExecutionMode()) << "\"";
auto values = this->getValues();
if (values.empty())
return;
printer << ", ";
llvm::interleaveComma(values, printer, [&](Attribute a) {
printer << llvm::cast<IntegerAttr>(a).getInt();
});
}
//===----------------------------------------------------------------------===//
// spirv.func
//===----------------------------------------------------------------------===//
ParseResult spirv::FuncOp::parse(OpAsmParser &parser, OperationState &result) {
SmallVector<OpAsmParser::Argument> entryArgs;
SmallVector<DictionaryAttr> resultAttrs;
SmallVector<Type> resultTypes;
auto &builder = parser.getBuilder();
// Parse the name as a symbol.
StringAttr nameAttr;
if (parser.parseSymbolName(nameAttr, SymbolTable::getSymbolAttrName(),
result.attributes))
return failure();
// Parse the function signature.
bool isVariadic = false;
if (function_interface_impl::parseFunctionSignature(
parser, /*allowVariadic=*/false, entryArgs, isVariadic, resultTypes,
resultAttrs))
return failure();
SmallVector<Type> argTypes;
for (auto &arg : entryArgs)
argTypes.push_back(arg.type);
auto fnType = builder.getFunctionType(argTypes, resultTypes);
result.addAttribute(getFunctionTypeAttrName(result.name),
TypeAttr::get(fnType));
// Parse the optional function control keyword.
spirv::FunctionControl fnControl;
if (parseEnumStrAttr<spirv::FunctionControlAttr>(fnControl, parser, result))
return failure();
// If additional attributes are present, parse them.
if (parser.parseOptionalAttrDictWithKeyword(result.attributes))
return failure();
// Add the attributes to the function arguments.
assert(resultAttrs.size() == resultTypes.size());
function_interface_impl::addArgAndResultAttrs(
builder, result, entryArgs, resultAttrs, getArgAttrsAttrName(result.name),
getResAttrsAttrName(result.name));
// Parse the optional function body.
auto *body = result.addRegion();
OptionalParseResult parseResult =
parser.parseOptionalRegion(*body, entryArgs);
return failure(parseResult.has_value() && failed(*parseResult));
}
void spirv::FuncOp::print(OpAsmPrinter &printer) {
// Print function name, signature, and control.
printer << " ";
printer.printSymbolName(getSymName());
auto fnType = getFunctionType();
function_interface_impl::printFunctionSignature(
printer, *this, fnType.getInputs(),
/*isVariadic=*/false, fnType.getResults());
printer << " \"" << spirv::stringifyFunctionControl(getFunctionControl())
<< "\"";
function_interface_impl::printFunctionAttributes(
printer, *this,
{spirv::attributeName<spirv::FunctionControl>(),
getFunctionTypeAttrName(), getArgAttrsAttrName(), getResAttrsAttrName(),
getFunctionControlAttrName()});
// Print the body if this is not an external function.
Region &body = this->getBody();
if (!body.empty()) {
printer << ' ';
printer.printRegion(body, /*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/true);
}
}
LogicalResult spirv::FuncOp::verifyType() {
FunctionType fnType = getFunctionType();
if (fnType.getNumResults() > 1)
return emitOpError("cannot have more than one result");
auto hasDecorationAttr = [&](spirv::Decoration decoration,
unsigned argIndex) {
auto func = llvm::cast<FunctionOpInterface>(getOperation());
for (auto argAttr : cast<FunctionOpInterface>(func).getArgAttrs(argIndex)) {
if (argAttr.getName() != spirv::DecorationAttr::name)
continue;
if (auto decAttr = dyn_cast<spirv::DecorationAttr>(argAttr.getValue()))
return decAttr.getValue() == decoration;
}
return false;
};
for (unsigned i = 0, e = this->getNumArguments(); i != e; ++i) {
Type param = fnType.getInputs()[i];
auto inputPtrType = dyn_cast<spirv::PointerType>(param);
if (!inputPtrType)
continue;