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llvm-project/clang/lib/CIR/Dialect/IR/CIRDialect.cpp
Morris Hafner 0989ff5de8
[CIR] Add constant attribute to GlobalOp (#154359) 
This patch adds the constant attribute to cir.global, the appropriate
lowering to LLVM constant and updates the tests.

---------

Co-authored-by: Andy Kaylor <akaylor@nvidia.com>
2025-08-20 12:53:00 +02:00

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//===- CIRDialect.cpp - MLIR CIR ops implementation -----------------------===//
//
// 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 implements the CIR dialect and its operations.
//
//===----------------------------------------------------------------------===//
#include "clang/CIR/Dialect/IR/CIRDialect.h"
#include "clang/CIR/Dialect/IR/CIROpsEnums.h"
#include "clang/CIR/Dialect/IR/CIRTypes.h"
#include "mlir/Interfaces/ControlFlowInterfaces.h"
#include "mlir/Interfaces/FunctionImplementation.h"
#include "mlir/Support/LLVM.h"
#include "clang/CIR/Dialect/IR/CIROpsDialect.cpp.inc"
#include "clang/CIR/Dialect/IR/CIROpsEnums.cpp.inc"
#include "clang/CIR/MissingFeatures.h"
#include "llvm/ADT/SetOperations.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/Support/LogicalResult.h"
#include <numeric>
using namespace mlir;
using namespace cir;
//===----------------------------------------------------------------------===//
// CIR Dialect
//===----------------------------------------------------------------------===//
namespace {
struct CIROpAsmDialectInterface : public OpAsmDialectInterface {
using OpAsmDialectInterface::OpAsmDialectInterface;
AliasResult getAlias(Type type, raw_ostream &os) const final {
if (auto recordType = dyn_cast<cir::RecordType>(type)) {
StringAttr nameAttr = recordType.getName();
if (!nameAttr)
os << "rec_anon_" << recordType.getKindAsStr();
else
os << "rec_" << nameAttr.getValue();
return AliasResult::OverridableAlias;
}
if (auto intType = dyn_cast<cir::IntType>(type)) {
// We only provide alias for standard integer types (i.e. integer types
// whose width is a power of 2 and at least 8).
unsigned width = intType.getWidth();
if (width < 8 || !llvm::isPowerOf2_32(width))
return AliasResult::NoAlias;
os << intType.getAlias();
return AliasResult::OverridableAlias;
}
if (auto voidType = dyn_cast<cir::VoidType>(type)) {
os << voidType.getAlias();
return AliasResult::OverridableAlias;
}
return AliasResult::NoAlias;
}
AliasResult getAlias(Attribute attr, raw_ostream &os) const final {
if (auto boolAttr = mlir::dyn_cast<cir::BoolAttr>(attr)) {
os << (boolAttr.getValue() ? "true" : "false");
return AliasResult::FinalAlias;
}
if (auto bitfield = mlir::dyn_cast<cir::BitfieldInfoAttr>(attr)) {
os << "bfi_" << bitfield.getName().str();
return AliasResult::FinalAlias;
}
return AliasResult::NoAlias;
}
};
} // namespace
void cir::CIRDialect::initialize() {
registerTypes();
registerAttributes();
addOperations<
#define GET_OP_LIST
#include "clang/CIR/Dialect/IR/CIROps.cpp.inc"
>();
addInterfaces<CIROpAsmDialectInterface>();
}
Operation *cir::CIRDialect::materializeConstant(mlir::OpBuilder &builder,
mlir::Attribute value,
mlir::Type type,
mlir::Location loc) {
return builder.create<cir::ConstantOp>(loc, type,
mlir::cast<mlir::TypedAttr>(value));
}
//===----------------------------------------------------------------------===//
// Helpers
//===----------------------------------------------------------------------===//
// 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(AsmParser &parser,
ArrayRef<llvm::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<cir::Ty> { \
static llvm::StringRef stringify(cir::Ty value) { \
return stringify##Ty(value); \
} \
static unsigned getMaxEnumVal() { return cir::getMaxEnumValFor##Ty(); } \
}
REGISTER_ENUM_TYPE(GlobalLinkageKind);
REGISTER_ENUM_TYPE(VisibilityKind);
REGISTER_ENUM_TYPE(SideEffect);
} // 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 parseOptionalCIRKeyword(AsmParser &parser, EnumTy defaultValue) {
llvm::SmallVector<llvm::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);
}
/// Parse an enum from the keyword, return failure if the keyword is not found.
template <typename EnumTy, typename RetTy = EnumTy>
static ParseResult parseCIRKeyword(AsmParser &parser, RetTy &result) {
llvm::SmallVector<llvm::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 failure();
result = static_cast<RetTy>(index);
return success();
}
// Check if a region's termination omission is valid and, if so, creates and
// inserts the omitted terminator into the region.
static LogicalResult ensureRegionTerm(OpAsmParser &parser, Region &region,
SMLoc errLoc) {
Location eLoc = parser.getEncodedSourceLoc(parser.getCurrentLocation());
OpBuilder builder(parser.getBuilder().getContext());
// Insert empty block in case the region is empty to ensure the terminator
// will be inserted
if (region.empty())
builder.createBlock(&region);
Block &block = region.back();
// Region is properly terminated: nothing to do.
if (!block.empty() && block.back().hasTrait<OpTrait::IsTerminator>())
return success();
// Check for invalid terminator omissions.
if (!region.hasOneBlock())
return parser.emitError(errLoc,
"multi-block region must not omit terminator");
// Terminator was omitted correctly: recreate it.
builder.setInsertionPointToEnd(&block);
builder.create<cir::YieldOp>(eLoc);
return success();
}
// True if the region's terminator should be omitted.
static bool omitRegionTerm(mlir::Region &r) {
const auto singleNonEmptyBlock = r.hasOneBlock() && !r.back().empty();
const auto yieldsNothing = [&r]() {
auto y = dyn_cast<cir::YieldOp>(r.back().getTerminator());
return y && y.getArgs().empty();
};
return singleNonEmptyBlock && yieldsNothing();
}
void printVisibilityAttr(OpAsmPrinter &printer,
cir::VisibilityAttr &visibility) {
switch (visibility.getValue()) {
case cir::VisibilityKind::Hidden:
printer << "hidden";
break;
case cir::VisibilityKind::Protected:
printer << "protected";
break;
case cir::VisibilityKind::Default:
break;
}
}
void parseVisibilityAttr(OpAsmParser &parser, cir::VisibilityAttr &visibility) {
cir::VisibilityKind visibilityKind =
parseOptionalCIRKeyword(parser, cir::VisibilityKind::Default);
visibility = cir::VisibilityAttr::get(parser.getContext(), visibilityKind);
}
//===----------------------------------------------------------------------===//
// CIR Custom Parsers/Printers
//===----------------------------------------------------------------------===//
static mlir::ParseResult parseOmittedTerminatorRegion(mlir::OpAsmParser &parser,
mlir::Region &region) {
auto regionLoc = parser.getCurrentLocation();
if (parser.parseRegion(region))
return failure();
if (ensureRegionTerm(parser, region, regionLoc).failed())
return failure();
return success();
}
static void printOmittedTerminatorRegion(mlir::OpAsmPrinter &printer,
cir::ScopeOp &op,
mlir::Region &region) {
printer.printRegion(region,
/*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/!omitRegionTerm(region));
}
//===----------------------------------------------------------------------===//
// AllocaOp
//===----------------------------------------------------------------------===//
void cir::AllocaOp::build(mlir::OpBuilder &odsBuilder,
mlir::OperationState &odsState, mlir::Type addr,
mlir::Type allocaType, llvm::StringRef name,
mlir::IntegerAttr alignment) {
odsState.addAttribute(getAllocaTypeAttrName(odsState.name),
mlir::TypeAttr::get(allocaType));
odsState.addAttribute(getNameAttrName(odsState.name),
odsBuilder.getStringAttr(name));
if (alignment) {
odsState.addAttribute(getAlignmentAttrName(odsState.name), alignment);
}
odsState.addTypes(addr);
}
//===----------------------------------------------------------------------===//
// BreakOp
//===----------------------------------------------------------------------===//
LogicalResult cir::BreakOp::verify() {
assert(!cir::MissingFeatures::switchOp());
if (!getOperation()->getParentOfType<LoopOpInterface>() &&
!getOperation()->getParentOfType<SwitchOp>())
return emitOpError("must be within a loop");
return success();
}
//===----------------------------------------------------------------------===//
// ConditionOp
//===----------------------------------------------------------------------===//
//===----------------------------------
// BranchOpTerminatorInterface Methods
//===----------------------------------
void cir::ConditionOp::getSuccessorRegions(
ArrayRef<Attribute> operands, SmallVectorImpl<RegionSuccessor> &regions) {
// TODO(cir): The condition value may be folded to a constant, narrowing
// down its list of possible successors.
// Parent is a loop: condition may branch to the body or to the parent op.
if (auto loopOp = dyn_cast<LoopOpInterface>(getOperation()->getParentOp())) {
regions.emplace_back(&loopOp.getBody(), loopOp.getBody().getArguments());
regions.emplace_back(loopOp->getResults());
}
assert(!cir::MissingFeatures::awaitOp());
}
MutableOperandRange
cir::ConditionOp::getMutableSuccessorOperands(RegionBranchPoint point) {
// No values are yielded to the successor region.
return MutableOperandRange(getOperation(), 0, 0);
}
LogicalResult cir::ConditionOp::verify() {
assert(!cir::MissingFeatures::awaitOp());
if (!isa<LoopOpInterface>(getOperation()->getParentOp()))
return emitOpError("condition must be within a conditional region");
return success();
}
//===----------------------------------------------------------------------===//
// ConstantOp
//===----------------------------------------------------------------------===//
static LogicalResult checkConstantTypes(mlir::Operation *op, mlir::Type opType,
mlir::Attribute attrType) {
if (isa<cir::ConstPtrAttr>(attrType)) {
if (!mlir::isa<cir::PointerType>(opType))
return op->emitOpError(
"pointer constant initializing a non-pointer type");
return success();
}
if (isa<cir::ZeroAttr>(attrType)) {
if (isa<cir::RecordType, cir::ArrayType, cir::VectorType, cir::ComplexType>(
opType))
return success();
return op->emitOpError(
"zero expects struct, array, vector, or complex type");
}
if (mlir::isa<cir::BoolAttr>(attrType)) {
if (!mlir::isa<cir::BoolType>(opType))
return op->emitOpError("result type (")
<< opType << ") must be '!cir.bool' for '" << attrType << "'";
return success();
}
if (mlir::isa<cir::IntAttr, cir::FPAttr>(attrType)) {
auto at = cast<TypedAttr>(attrType);
if (at.getType() != opType) {
return op->emitOpError("result type (")
<< opType << ") does not match value type (" << at.getType()
<< ")";
}
return success();
}
if (mlir::isa<cir::ConstArrayAttr, cir::ConstVectorAttr,
cir::ConstComplexAttr, cir::ConstRecordAttr,
cir::GlobalViewAttr, cir::PoisonAttr>(attrType))
return success();
assert(isa<TypedAttr>(attrType) && "What else could we be looking at here?");
return op->emitOpError("global with type ")
<< cast<TypedAttr>(attrType).getType() << " not yet supported";
}
LogicalResult cir::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 checkConstantTypes(getOperation(), getType(), getValue());
}
OpFoldResult cir::ConstantOp::fold(FoldAdaptor /*adaptor*/) {
return getValue();
}
//===----------------------------------------------------------------------===//
// ContinueOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ContinueOp::verify() {
if (!getOperation()->getParentOfType<LoopOpInterface>())
return emitOpError("must be within a loop");
return success();
}
//===----------------------------------------------------------------------===//
// CastOp
//===----------------------------------------------------------------------===//
LogicalResult cir::CastOp::verify() {
mlir::Type resType = getType();
mlir::Type srcType = getSrc().getType();
if (mlir::isa<cir::VectorType>(srcType) &&
mlir::isa<cir::VectorType>(resType)) {
// Use the element type of the vector to verify the cast kind. (Except for
// bitcast, see below.)
srcType = mlir::dyn_cast<cir::VectorType>(srcType).getElementType();
resType = mlir::dyn_cast<cir::VectorType>(resType).getElementType();
}
switch (getKind()) {
case cir::CastKind::int_to_bool: {
if (!mlir::isa<cir::BoolType>(resType))
return emitOpError() << "requires !cir.bool type for result";
if (!mlir::isa<cir::IntType>(srcType))
return emitOpError() << "requires !cir.int type for source";
return success();
}
case cir::CastKind::ptr_to_bool: {
if (!mlir::isa<cir::BoolType>(resType))
return emitOpError() << "requires !cir.bool type for result";
if (!mlir::isa<cir::PointerType>(srcType))
return emitOpError() << "requires !cir.ptr type for source";
return success();
}
case cir::CastKind::integral: {
if (!mlir::isa<cir::IntType>(resType))
return emitOpError() << "requires !cir.int type for result";
if (!mlir::isa<cir::IntType>(srcType))
return emitOpError() << "requires !cir.int type for source";
return success();
}
case cir::CastKind::array_to_ptrdecay: {
const auto arrayPtrTy = mlir::dyn_cast<cir::PointerType>(srcType);
const auto flatPtrTy = mlir::dyn_cast<cir::PointerType>(resType);
if (!arrayPtrTy || !flatPtrTy)
return emitOpError() << "requires !cir.ptr type for source and result";
// TODO(CIR): Make sure the AddrSpace of both types are equals
return success();
}
case cir::CastKind::bitcast: {
// Handle the pointer types first.
auto srcPtrTy = mlir::dyn_cast<cir::PointerType>(srcType);
auto resPtrTy = mlir::dyn_cast<cir::PointerType>(resType);
if (srcPtrTy && resPtrTy) {
return success();
}
return success();
}
case cir::CastKind::floating: {
if (!mlir::isa<cir::FPTypeInterface>(srcType) ||
!mlir::isa<cir::FPTypeInterface>(resType))
return emitOpError() << "requires !cir.float type for source and result";
return success();
}
case cir::CastKind::float_to_int: {
if (!mlir::isa<cir::FPTypeInterface>(srcType))
return emitOpError() << "requires !cir.float type for source";
if (!mlir::dyn_cast<cir::IntType>(resType))
return emitOpError() << "requires !cir.int type for result";
return success();
}
case cir::CastKind::int_to_ptr: {
if (!mlir::dyn_cast<cir::IntType>(srcType))
return emitOpError() << "requires !cir.int type for source";
if (!mlir::dyn_cast<cir::PointerType>(resType))
return emitOpError() << "requires !cir.ptr type for result";
return success();
}
case cir::CastKind::ptr_to_int: {
if (!mlir::dyn_cast<cir::PointerType>(srcType))
return emitOpError() << "requires !cir.ptr type for source";
if (!mlir::dyn_cast<cir::IntType>(resType))
return emitOpError() << "requires !cir.int type for result";
return success();
}
case cir::CastKind::float_to_bool: {
if (!mlir::isa<cir::FPTypeInterface>(srcType))
return emitOpError() << "requires !cir.float type for source";
if (!mlir::isa<cir::BoolType>(resType))
return emitOpError() << "requires !cir.bool type for result";
return success();
}
case cir::CastKind::bool_to_int: {
if (!mlir::isa<cir::BoolType>(srcType))
return emitOpError() << "requires !cir.bool type for source";
if (!mlir::isa<cir::IntType>(resType))
return emitOpError() << "requires !cir.int type for result";
return success();
}
case cir::CastKind::int_to_float: {
if (!mlir::isa<cir::IntType>(srcType))
return emitOpError() << "requires !cir.int type for source";
if (!mlir::isa<cir::FPTypeInterface>(resType))
return emitOpError() << "requires !cir.float type for result";
return success();
}
case cir::CastKind::bool_to_float: {
if (!mlir::isa<cir::BoolType>(srcType))
return emitOpError() << "requires !cir.bool type for source";
if (!mlir::isa<cir::FPTypeInterface>(resType))
return emitOpError() << "requires !cir.float type for result";
return success();
}
case cir::CastKind::address_space: {
auto srcPtrTy = mlir::dyn_cast<cir::PointerType>(srcType);
auto resPtrTy = mlir::dyn_cast<cir::PointerType>(resType);
if (!srcPtrTy || !resPtrTy)
return emitOpError() << "requires !cir.ptr type for source and result";
if (srcPtrTy.getPointee() != resPtrTy.getPointee())
return emitOpError() << "requires two types differ in addrspace only";
return success();
}
case cir::CastKind::float_to_complex: {
if (!mlir::isa<cir::FPTypeInterface>(srcType))
return emitOpError() << "requires !cir.float type for source";
auto resComplexTy = mlir::dyn_cast<cir::ComplexType>(resType);
if (!resComplexTy)
return emitOpError() << "requires !cir.complex type for result";
if (srcType != resComplexTy.getElementType())
return emitOpError() << "requires source type match result element type";
return success();
}
case cir::CastKind::int_to_complex: {
if (!mlir::isa<cir::IntType>(srcType))
return emitOpError() << "requires !cir.int type for source";
auto resComplexTy = mlir::dyn_cast<cir::ComplexType>(resType);
if (!resComplexTy)
return emitOpError() << "requires !cir.complex type for result";
if (srcType != resComplexTy.getElementType())
return emitOpError() << "requires source type match result element type";
return success();
}
case cir::CastKind::float_complex_to_real: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy)
return emitOpError() << "requires !cir.complex type for source";
if (!mlir::isa<cir::FPTypeInterface>(resType))
return emitOpError() << "requires !cir.float type for result";
if (srcComplexTy.getElementType() != resType)
return emitOpError() << "requires source element type match result type";
return success();
}
case cir::CastKind::int_complex_to_real: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy)
return emitOpError() << "requires !cir.complex type for source";
if (!mlir::isa<cir::IntType>(resType))
return emitOpError() << "requires !cir.int type for result";
if (srcComplexTy.getElementType() != resType)
return emitOpError() << "requires source element type match result type";
return success();
}
case cir::CastKind::float_complex_to_bool: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy || !srcComplexTy.isFloatingPointComplex())
return emitOpError()
<< "requires floating point !cir.complex type for source";
if (!mlir::isa<cir::BoolType>(resType))
return emitOpError() << "requires !cir.bool type for result";
return success();
}
case cir::CastKind::int_complex_to_bool: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy || !srcComplexTy.isIntegerComplex())
return emitOpError()
<< "requires floating point !cir.complex type for source";
if (!mlir::isa<cir::BoolType>(resType))
return emitOpError() << "requires !cir.bool type for result";
return success();
}
case cir::CastKind::float_complex: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy || !srcComplexTy.isFloatingPointComplex())
return emitOpError()
<< "requires floating point !cir.complex type for source";
auto resComplexTy = mlir::dyn_cast<cir::ComplexType>(resType);
if (!resComplexTy || !resComplexTy.isFloatingPointComplex())
return emitOpError()
<< "requires floating point !cir.complex type for result";
return success();
}
case cir::CastKind::float_complex_to_int_complex: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy || !srcComplexTy.isFloatingPointComplex())
return emitOpError()
<< "requires floating point !cir.complex type for source";
auto resComplexTy = mlir::dyn_cast<cir::ComplexType>(resType);
if (!resComplexTy || !resComplexTy.isIntegerComplex())
return emitOpError() << "requires integer !cir.complex type for result";
return success();
}
case cir::CastKind::int_complex: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy || !srcComplexTy.isIntegerComplex())
return emitOpError() << "requires integer !cir.complex type for source";
auto resComplexTy = mlir::dyn_cast<cir::ComplexType>(resType);
if (!resComplexTy || !resComplexTy.isIntegerComplex())
return emitOpError() << "requires integer !cir.complex type for result";
return success();
}
case cir::CastKind::int_complex_to_float_complex: {
auto srcComplexTy = mlir::dyn_cast<cir::ComplexType>(srcType);
if (!srcComplexTy || !srcComplexTy.isIntegerComplex())
return emitOpError() << "requires integer !cir.complex type for source";
auto resComplexTy = mlir::dyn_cast<cir::ComplexType>(resType);
if (!resComplexTy || !resComplexTy.isFloatingPointComplex())
return emitOpError()
<< "requires floating point !cir.complex type for result";
return success();
}
default:
llvm_unreachable("Unknown CastOp kind?");
}
}
static bool isIntOrBoolCast(cir::CastOp op) {
auto kind = op.getKind();
return kind == cir::CastKind::bool_to_int ||
kind == cir::CastKind::int_to_bool || kind == cir::CastKind::integral;
}
static Value tryFoldCastChain(cir::CastOp op) {
cir::CastOp head = op, tail = op;
while (op) {
if (!isIntOrBoolCast(op))
break;
head = op;
op = head.getSrc().getDefiningOp<cir::CastOp>();
}
if (head == tail)
return {};
// if bool_to_int -> ... -> int_to_bool: take the bool
// as we had it was before all casts
if (head.getKind() == cir::CastKind::bool_to_int &&
tail.getKind() == cir::CastKind::int_to_bool)
return head.getSrc();
// if int_to_bool -> ... -> int_to_bool: take the result
// of the first one, as no other casts (and ext casts as well)
// don't change the first result
if (head.getKind() == cir::CastKind::int_to_bool &&
tail.getKind() == cir::CastKind::int_to_bool)
return head.getResult();
return {};
}
OpFoldResult cir::CastOp::fold(FoldAdaptor adaptor) {
if (mlir::isa_and_present<cir::PoisonAttr>(adaptor.getSrc())) {
// Propagate poison value
return cir::PoisonAttr::get(getContext(), getType());
}
if (getSrc().getType() == getType()) {
switch (getKind()) {
case cir::CastKind::integral: {
// TODO: for sign differences, it's possible in certain conditions to
// create a new attribute that's capable of representing the source.
llvm::SmallVector<mlir::OpFoldResult, 1> foldResults;
auto foldOrder = getSrc().getDefiningOp()->fold(foldResults);
if (foldOrder.succeeded() && mlir::isa<mlir::Attribute>(foldResults[0]))
return mlir::cast<mlir::Attribute>(foldResults[0]);
return {};
}
case cir::CastKind::bitcast:
case cir::CastKind::address_space:
case cir::CastKind::float_complex:
case cir::CastKind::int_complex: {
return getSrc();
}
default:
return {};
}
}
return tryFoldCastChain(*this);
}
//===----------------------------------------------------------------------===//
// CallOp
//===----------------------------------------------------------------------===//
mlir::OperandRange cir::CallOp::getArgOperands() {
if (isIndirect())
return getArgs().drop_front(1);
return getArgs();
}
mlir::MutableOperandRange cir::CallOp::getArgOperandsMutable() {
mlir::MutableOperandRange args = getArgsMutable();
if (isIndirect())
return args.slice(1, args.size() - 1);
return args;
}
mlir::Value cir::CallOp::getIndirectCall() {
assert(isIndirect());
return getOperand(0);
}
/// Return the operand at index 'i'.
Value cir::CallOp::getArgOperand(unsigned i) {
if (isIndirect())
++i;
return getOperand(i);
}
/// Return the number of operands.
unsigned cir::CallOp::getNumArgOperands() {
if (isIndirect())
return this->getOperation()->getNumOperands() - 1;
return this->getOperation()->getNumOperands();
}
static mlir::ParseResult parseCallCommon(mlir::OpAsmParser &parser,
mlir::OperationState &result) {
llvm::SmallVector<mlir::OpAsmParser::UnresolvedOperand, 4> ops;
llvm::SMLoc opsLoc;
mlir::FlatSymbolRefAttr calleeAttr;
llvm::ArrayRef<mlir::Type> allResultTypes;
// If we cannot parse a string callee, it means this is an indirect call.
if (!parser
.parseOptionalAttribute(calleeAttr, CIRDialect::getCalleeAttrName(),
result.attributes)
.has_value()) {
OpAsmParser::UnresolvedOperand indirectVal;
// Do not resolve right now, since we need to figure out the type
if (parser.parseOperand(indirectVal).failed())
return failure();
ops.push_back(indirectVal);
}
if (parser.parseLParen())
return mlir::failure();
opsLoc = parser.getCurrentLocation();
if (parser.parseOperandList(ops))
return mlir::failure();
if (parser.parseRParen())
return mlir::failure();
if (parser.parseOptionalKeyword("nothrow").succeeded())
result.addAttribute(CIRDialect::getNoThrowAttrName(),
mlir::UnitAttr::get(parser.getContext()));
if (parser.parseOptionalKeyword("side_effect").succeeded()) {
if (parser.parseLParen().failed())
return failure();
cir::SideEffect sideEffect;
if (parseCIRKeyword<cir::SideEffect>(parser, sideEffect).failed())
return failure();
if (parser.parseRParen().failed())
return failure();
auto attr = cir::SideEffectAttr::get(parser.getContext(), sideEffect);
result.addAttribute(CIRDialect::getSideEffectAttrName(), attr);
}
if (parser.parseOptionalAttrDict(result.attributes))
return ::mlir::failure();
if (parser.parseColon())
return ::mlir::failure();
mlir::FunctionType opsFnTy;
if (parser.parseType(opsFnTy))
return mlir::failure();
allResultTypes = opsFnTy.getResults();
result.addTypes(allResultTypes);
if (parser.resolveOperands(ops, opsFnTy.getInputs(), opsLoc, result.operands))
return mlir::failure();
return mlir::success();
}
static void printCallCommon(mlir::Operation *op,
mlir::FlatSymbolRefAttr calleeSym,
mlir::Value indirectCallee,
mlir::OpAsmPrinter &printer, bool isNothrow,
cir::SideEffect sideEffect) {
printer << ' ';
auto callLikeOp = mlir::cast<cir::CIRCallOpInterface>(op);
auto ops = callLikeOp.getArgOperands();
if (calleeSym) {
// Direct calls
printer.printAttributeWithoutType(calleeSym);
} else {
// Indirect calls
assert(indirectCallee);
printer << indirectCallee;
}
printer << "(" << ops << ")";
if (isNothrow)
printer << " nothrow";
if (sideEffect != cir::SideEffect::All) {
printer << " side_effect(";
printer << stringifySideEffect(sideEffect);
printer << ")";
}
printer.printOptionalAttrDict(op->getAttrs(),
{CIRDialect::getCalleeAttrName(),
CIRDialect::getNoThrowAttrName(),
CIRDialect::getSideEffectAttrName()});
printer << " : ";
printer.printFunctionalType(op->getOperands().getTypes(),
op->getResultTypes());
}
mlir::ParseResult cir::CallOp::parse(mlir::OpAsmParser &parser,
mlir::OperationState &result) {
return parseCallCommon(parser, result);
}
void cir::CallOp::print(mlir::OpAsmPrinter &p) {
mlir::Value indirectCallee = isIndirect() ? getIndirectCall() : nullptr;
cir::SideEffect sideEffect = getSideEffect();
printCallCommon(*this, getCalleeAttr(), indirectCallee, p, getNothrow(),
sideEffect);
}
static LogicalResult
verifyCallCommInSymbolUses(mlir::Operation *op,
SymbolTableCollection &symbolTable) {
auto fnAttr =
op->getAttrOfType<FlatSymbolRefAttr>(CIRDialect::getCalleeAttrName());
if (!fnAttr) {
// This is an indirect call, thus we don't have to check the symbol uses.
return mlir::success();
}
auto fn = symbolTable.lookupNearestSymbolFrom<cir::FuncOp>(op, fnAttr);
if (!fn)
return op->emitOpError() << "'" << fnAttr.getValue()
<< "' does not reference a valid function";
auto callIf = dyn_cast<cir::CIRCallOpInterface>(op);
assert(callIf && "expected CIR call interface to be always available");
// Verify that the operand and result types match the callee. Note that
// argument-checking is disabled for functions without a prototype.
auto fnType = fn.getFunctionType();
if (!fn.getNoProto()) {
unsigned numCallOperands = callIf.getNumArgOperands();
unsigned numFnOpOperands = fnType.getNumInputs();
if (!fnType.isVarArg() && numCallOperands != numFnOpOperands)
return op->emitOpError("incorrect number of operands for callee");
if (fnType.isVarArg() && numCallOperands < numFnOpOperands)
return op->emitOpError("too few operands for callee");
for (unsigned i = 0, e = numFnOpOperands; i != e; ++i)
if (callIf.getArgOperand(i).getType() != fnType.getInput(i))
return op->emitOpError("operand type mismatch: expected operand type ")
<< fnType.getInput(i) << ", but provided "
<< op->getOperand(i).getType() << " for operand number " << i;
}
assert(!cir::MissingFeatures::opCallCallConv());
// Void function must not return any results.
if (fnType.hasVoidReturn() && op->getNumResults() != 0)
return op->emitOpError("callee returns void but call has results");
// Non-void function calls must return exactly one result.
if (!fnType.hasVoidReturn() && op->getNumResults() != 1)
return op->emitOpError("incorrect number of results for callee");
// Parent function and return value types must match.
if (!fnType.hasVoidReturn() &&
op->getResultTypes().front() != fnType.getReturnType()) {
return op->emitOpError("result type mismatch: expected ")
<< fnType.getReturnType() << ", but provided "
<< op->getResult(0).getType();
}
return mlir::success();
}
LogicalResult
cir::CallOp::verifySymbolUses(SymbolTableCollection &symbolTable) {
return verifyCallCommInSymbolUses(*this, symbolTable);
}
//===----------------------------------------------------------------------===//
// ReturnOp
//===----------------------------------------------------------------------===//
static mlir::LogicalResult checkReturnAndFunction(cir::ReturnOp op,
cir::FuncOp function) {
// ReturnOps currently only have a single optional operand.
if (op.getNumOperands() > 1)
return op.emitOpError() << "expects at most 1 return operand";
// Ensure returned type matches the function signature.
auto expectedTy = function.getFunctionType().getReturnType();
auto actualTy =
(op.getNumOperands() == 0 ? cir::VoidType::get(op.getContext())
: op.getOperand(0).getType());
if (actualTy != expectedTy)
return op.emitOpError() << "returns " << actualTy
<< " but enclosing function returns " << expectedTy;
return mlir::success();
}
mlir::LogicalResult cir::ReturnOp::verify() {
// Returns can be present in multiple different scopes, get the
// wrapping function and start from there.
auto *fnOp = getOperation()->getParentOp();
while (!isa<cir::FuncOp>(fnOp))
fnOp = fnOp->getParentOp();
// Make sure return types match function return type.
if (checkReturnAndFunction(*this, cast<cir::FuncOp>(fnOp)).failed())
return failure();
return success();
}
//===----------------------------------------------------------------------===//
// IfOp
//===----------------------------------------------------------------------===//
ParseResult cir::IfOp::parse(OpAsmParser &parser, OperationState &result) {
// create the regions for 'then'.
result.regions.reserve(2);
Region *thenRegion = result.addRegion();
Region *elseRegion = result.addRegion();
mlir::Builder &builder = parser.getBuilder();
OpAsmParser::UnresolvedOperand cond;
Type boolType = cir::BoolType::get(builder.getContext());
if (parser.parseOperand(cond) ||
parser.resolveOperand(cond, boolType, result.operands))
return failure();
// Parse 'then' region.
mlir::SMLoc parseThenLoc = parser.getCurrentLocation();
if (parser.parseRegion(*thenRegion, /*arguments=*/{}, /*argTypes=*/{}))
return failure();
if (ensureRegionTerm(parser, *thenRegion, parseThenLoc).failed())
return failure();
// If we find an 'else' keyword, parse the 'else' region.
if (!parser.parseOptionalKeyword("else")) {
mlir::SMLoc parseElseLoc = parser.getCurrentLocation();
if (parser.parseRegion(*elseRegion, /*arguments=*/{}, /*argTypes=*/{}))
return failure();
if (ensureRegionTerm(parser, *elseRegion, parseElseLoc).failed())
return failure();
}
// Parse the optional attribute list.
if (parser.parseOptionalAttrDict(result.attributes))
return failure();
return success();
}
void cir::IfOp::print(OpAsmPrinter &p) {
p << " " << getCondition() << " ";
mlir::Region &thenRegion = this->getThenRegion();
p.printRegion(thenRegion,
/*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/!omitRegionTerm(thenRegion));
// Print the 'else' regions if it exists and has a block.
mlir::Region &elseRegion = this->getElseRegion();
if (!elseRegion.empty()) {
p << " else ";
p.printRegion(elseRegion,
/*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/!omitRegionTerm(elseRegion));
}
p.printOptionalAttrDict(getOperation()->getAttrs());
}
/// Default callback for IfOp builders.
void cir::buildTerminatedBody(OpBuilder &builder, Location loc) {
// add cir.yield to end of the block
builder.create<cir::YieldOp>(loc);
}
/// Given the region at `index`, or the parent operation if `index` is None,
/// return the successor regions. These are the regions that may be selected
/// during the flow of control. `operands` is a set of optional attributes that
/// correspond to a constant value for each operand, or null if that operand is
/// not a constant.
void cir::IfOp::getSuccessorRegions(mlir::RegionBranchPoint point,
SmallVectorImpl<RegionSuccessor> &regions) {
// The `then` and the `else` region branch back to the parent operation.
if (!point.isParent()) {
regions.push_back(RegionSuccessor());
return;
}
// Don't consider the else region if it is empty.
Region *elseRegion = &this->getElseRegion();
if (elseRegion->empty())
elseRegion = nullptr;
// If the condition isn't constant, both regions may be executed.
regions.push_back(RegionSuccessor(&getThenRegion()));
// If the else region does not exist, it is not a viable successor.
if (elseRegion)
regions.push_back(RegionSuccessor(elseRegion));
return;
}
void cir::IfOp::build(OpBuilder &builder, OperationState &result, Value cond,
bool withElseRegion, BuilderCallbackRef thenBuilder,
BuilderCallbackRef elseBuilder) {
assert(thenBuilder && "the builder callback for 'then' must be present");
result.addOperands(cond);
OpBuilder::InsertionGuard guard(builder);
Region *thenRegion = result.addRegion();
builder.createBlock(thenRegion);
thenBuilder(builder, result.location);
Region *elseRegion = result.addRegion();
if (!withElseRegion)
return;
builder.createBlock(elseRegion);
elseBuilder(builder, result.location);
}
//===----------------------------------------------------------------------===//
// ScopeOp
//===----------------------------------------------------------------------===//
/// Given the region at `index`, or the parent operation if `index` is None,
/// return the successor regions. These are the regions that may be selected
/// during the flow of control. `operands` is a set of optional attributes
/// that correspond to a constant value for each operand, or null if that
/// operand is not a constant.
void cir::ScopeOp::getSuccessorRegions(
mlir::RegionBranchPoint point, SmallVectorImpl<RegionSuccessor> &regions) {
// The only region always branch back to the parent operation.
if (!point.isParent()) {
regions.push_back(RegionSuccessor(getODSResults(0)));
return;
}
// If the condition isn't constant, both regions may be executed.
regions.push_back(RegionSuccessor(&getScopeRegion()));
}
void cir::ScopeOp::build(
OpBuilder &builder, OperationState &result,
function_ref<void(OpBuilder &, Type &, Location)> scopeBuilder) {
assert(scopeBuilder && "the builder callback for 'then' must be present");
OpBuilder::InsertionGuard guard(builder);
Region *scopeRegion = result.addRegion();
builder.createBlock(scopeRegion);
assert(!cir::MissingFeatures::opScopeCleanupRegion());
mlir::Type yieldTy;
scopeBuilder(builder, yieldTy, result.location);
if (yieldTy)
result.addTypes(TypeRange{yieldTy});
}
void cir::ScopeOp::build(
OpBuilder &builder, OperationState &result,
function_ref<void(OpBuilder &, Location)> scopeBuilder) {
assert(scopeBuilder && "the builder callback for 'then' must be present");
OpBuilder::InsertionGuard guard(builder);
Region *scopeRegion = result.addRegion();
builder.createBlock(scopeRegion);
assert(!cir::MissingFeatures::opScopeCleanupRegion());
scopeBuilder(builder, result.location);
}
LogicalResult cir::ScopeOp::verify() {
if (getRegion().empty()) {
return emitOpError() << "cir.scope must not be empty since it should "
"include at least an implicit cir.yield ";
}
mlir::Block &lastBlock = getRegion().back();
if (lastBlock.empty() || !lastBlock.mightHaveTerminator() ||
!lastBlock.getTerminator()->hasTrait<OpTrait::IsTerminator>())
return emitOpError() << "last block of cir.scope must be terminated";
return success();
}
//===----------------------------------------------------------------------===//
// BrOp
//===----------------------------------------------------------------------===//
mlir::SuccessorOperands cir::BrOp::getSuccessorOperands(unsigned index) {
assert(index == 0 && "invalid successor index");
return mlir::SuccessorOperands(getDestOperandsMutable());
}
Block *cir::BrOp::getSuccessorForOperands(ArrayRef<Attribute>) {
return getDest();
}
//===----------------------------------------------------------------------===//
// BrCondOp
//===----------------------------------------------------------------------===//
mlir::SuccessorOperands cir::BrCondOp::getSuccessorOperands(unsigned index) {
assert(index < getNumSuccessors() && "invalid successor index");
return SuccessorOperands(index == 0 ? getDestOperandsTrueMutable()
: getDestOperandsFalseMutable());
}
Block *cir::BrCondOp::getSuccessorForOperands(ArrayRef<Attribute> operands) {
if (IntegerAttr condAttr = dyn_cast_if_present<IntegerAttr>(operands.front()))
return condAttr.getValue().isOne() ? getDestTrue() : getDestFalse();
return nullptr;
}
//===----------------------------------------------------------------------===//
// CaseOp
//===----------------------------------------------------------------------===//
void cir::CaseOp::getSuccessorRegions(
mlir::RegionBranchPoint point, SmallVectorImpl<RegionSuccessor> &regions) {
if (!point.isParent()) {
regions.push_back(RegionSuccessor());
return;
}
regions.push_back(RegionSuccessor(&getCaseRegion()));
}
void cir::CaseOp::build(OpBuilder &builder, OperationState &result,
ArrayAttr value, CaseOpKind kind,
OpBuilder::InsertPoint &insertPoint) {
OpBuilder::InsertionGuard guardSwitch(builder);
result.addAttribute("value", value);
result.getOrAddProperties<Properties>().kind =
cir::CaseOpKindAttr::get(builder.getContext(), kind);
Region *caseRegion = result.addRegion();
builder.createBlock(caseRegion);
insertPoint = builder.saveInsertionPoint();
}
//===----------------------------------------------------------------------===//
// SwitchOp
//===----------------------------------------------------------------------===//
static ParseResult parseSwitchOp(OpAsmParser &parser, mlir::Region &regions,
mlir::OpAsmParser::UnresolvedOperand &cond,
mlir::Type &condType) {
cir::IntType intCondType;
if (parser.parseLParen())
return mlir::failure();
if (parser.parseOperand(cond))
return mlir::failure();
if (parser.parseColon())
return mlir::failure();
if (parser.parseCustomTypeWithFallback(intCondType))
return mlir::failure();
condType = intCondType;
if (parser.parseRParen())
return mlir::failure();
if (parser.parseRegion(regions, /*arguments=*/{}, /*argTypes=*/{}))
return failure();
return mlir::success();
}
static void printSwitchOp(OpAsmPrinter &p, cir::SwitchOp op,
mlir::Region &bodyRegion, mlir::Value condition,
mlir::Type condType) {
p << "(";
p << condition;
p << " : ";
p.printStrippedAttrOrType(condType);
p << ")";
p << ' ';
p.printRegion(bodyRegion, /*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/true);
}
void cir::SwitchOp::getSuccessorRegions(
mlir::RegionBranchPoint point, SmallVectorImpl<RegionSuccessor> &region) {
if (!point.isParent()) {
region.push_back(RegionSuccessor());
return;
}
region.push_back(RegionSuccessor(&getBody()));
}
void cir::SwitchOp::build(OpBuilder &builder, OperationState &result,
Value cond, BuilderOpStateCallbackRef switchBuilder) {
assert(switchBuilder && "the builder callback for regions must be present");
OpBuilder::InsertionGuard guardSwitch(builder);
Region *switchRegion = result.addRegion();
builder.createBlock(switchRegion);
result.addOperands({cond});
switchBuilder(builder, result.location, result);
}
void cir::SwitchOp::collectCases(llvm::SmallVectorImpl<CaseOp> &cases) {
walk<mlir::WalkOrder::PreOrder>([&](mlir::Operation *op) {
// Don't walk in nested switch op.
if (isa<cir::SwitchOp>(op) && op != *this)
return WalkResult::skip();
if (auto caseOp = dyn_cast<cir::CaseOp>(op))
cases.push_back(caseOp);
return WalkResult::advance();
});
}
bool cir::SwitchOp::isSimpleForm(llvm::SmallVectorImpl<CaseOp> &cases) {
collectCases(cases);
if (getBody().empty())
return false;
if (!isa<YieldOp>(getBody().front().back()))
return false;
if (!llvm::all_of(getBody().front(),
[](Operation &op) { return isa<CaseOp, YieldOp>(op); }))
return false;
return llvm::all_of(cases, [this](CaseOp op) {
return op->getParentOfType<SwitchOp>() == *this;
});
}
//===----------------------------------------------------------------------===//
// SwitchFlatOp
//===----------------------------------------------------------------------===//
void cir::SwitchFlatOp::build(OpBuilder &builder, OperationState &result,
Value value, Block *defaultDestination,
ValueRange defaultOperands,
ArrayRef<APInt> caseValues,
BlockRange caseDestinations,
ArrayRef<ValueRange> caseOperands) {
std::vector<mlir::Attribute> caseValuesAttrs;
for (const APInt &val : caseValues)
caseValuesAttrs.push_back(cir::IntAttr::get(value.getType(), val));
mlir::ArrayAttr attrs = ArrayAttr::get(builder.getContext(), caseValuesAttrs);
build(builder, result, value, defaultOperands, caseOperands, attrs,
defaultDestination, caseDestinations);
}
/// <cases> ::= `[` (case (`,` case )* )? `]`
/// <case> ::= integer `:` bb-id (`(` ssa-use-and-type-list `)`)?
static ParseResult parseSwitchFlatOpCases(
OpAsmParser &parser, Type flagType, mlir::ArrayAttr &caseValues,
SmallVectorImpl<Block *> &caseDestinations,
SmallVectorImpl<llvm::SmallVector<OpAsmParser::UnresolvedOperand>>
&caseOperands,
SmallVectorImpl<llvm::SmallVector<Type>> &caseOperandTypes) {
if (failed(parser.parseLSquare()))
return failure();
if (succeeded(parser.parseOptionalRSquare()))
return success();
llvm::SmallVector<mlir::Attribute> values;
auto parseCase = [&]() {
int64_t value = 0;
if (failed(parser.parseInteger(value)))
return failure();
values.push_back(cir::IntAttr::get(flagType, value));
Block *destination;
llvm::SmallVector<OpAsmParser::UnresolvedOperand> operands;
llvm::SmallVector<Type> operandTypes;
if (parser.parseColon() || parser.parseSuccessor(destination))
return failure();
if (!parser.parseOptionalLParen()) {
if (parser.parseOperandList(operands, OpAsmParser::Delimiter::None,
/*allowResultNumber=*/false) ||
parser.parseColonTypeList(operandTypes) || parser.parseRParen())
return failure();
}
caseDestinations.push_back(destination);
caseOperands.emplace_back(operands);
caseOperandTypes.emplace_back(operandTypes);
return success();
};
if (failed(parser.parseCommaSeparatedList(parseCase)))
return failure();
caseValues = ArrayAttr::get(flagType.getContext(), values);
return parser.parseRSquare();
}
static void printSwitchFlatOpCases(OpAsmPrinter &p, cir::SwitchFlatOp op,
Type flagType, mlir::ArrayAttr caseValues,
SuccessorRange caseDestinations,
OperandRangeRange caseOperands,
const TypeRangeRange &caseOperandTypes) {
p << '[';
p.printNewline();
if (!caseValues) {
p << ']';
return;
}
size_t index = 0;
llvm::interleave(
llvm::zip(caseValues, caseDestinations),
[&](auto i) {
p << " ";
mlir::Attribute a = std::get<0>(i);
p << mlir::cast<cir::IntAttr>(a).getValue();
p << ": ";
p.printSuccessorAndUseList(std::get<1>(i), caseOperands[index++]);
},
[&] {
p << ',';
p.printNewline();
});
p.printNewline();
p << ']';
}
//===----------------------------------------------------------------------===//
// GlobalOp
//===----------------------------------------------------------------------===//
static ParseResult parseConstantValue(OpAsmParser &parser,
mlir::Attribute &valueAttr) {
NamedAttrList attr;
return parser.parseAttribute(valueAttr, "value", attr);
}
static void printConstant(OpAsmPrinter &p, Attribute value) {
p.printAttribute(value);
}
mlir::LogicalResult cir::GlobalOp::verify() {
// Verify that the initial value, if present, is either a unit attribute or
// an attribute CIR supports.
if (getInitialValue().has_value()) {
if (checkConstantTypes(getOperation(), getSymType(), *getInitialValue())
.failed())
return failure();
}
// TODO(CIR): Many other checks for properties that haven't been upstreamed
// yet.
return success();
}
void cir::GlobalOp::build(OpBuilder &odsBuilder, OperationState &odsState,
llvm::StringRef sym_name, mlir::Type sym_type,
bool isConstant, cir::GlobalLinkageKind linkage) {
odsState.addAttribute(getSymNameAttrName(odsState.name),
odsBuilder.getStringAttr(sym_name));
odsState.addAttribute(getSymTypeAttrName(odsState.name),
mlir::TypeAttr::get(sym_type));
if (isConstant)
odsState.addAttribute(getConstantAttrName(odsState.name),
odsBuilder.getUnitAttr());
cir::GlobalLinkageKindAttr linkageAttr =
cir::GlobalLinkageKindAttr::get(odsBuilder.getContext(), linkage);
odsState.addAttribute(getLinkageAttrName(odsState.name), linkageAttr);
odsState.addAttribute(getGlobalVisibilityAttrName(odsState.name),
cir::VisibilityAttr::get(odsBuilder.getContext()));
}
static void printGlobalOpTypeAndInitialValue(OpAsmPrinter &p, cir::GlobalOp op,
TypeAttr type,
Attribute initAttr) {
if (!op.isDeclaration()) {
p << "= ";
// This also prints the type...
if (initAttr)
printConstant(p, initAttr);
} else {
p << ": " << type;
}
}
static ParseResult
parseGlobalOpTypeAndInitialValue(OpAsmParser &parser, TypeAttr &typeAttr,
Attribute &initialValueAttr) {
mlir::Type opTy;
if (parser.parseOptionalEqual().failed()) {
// Absence of equal means a declaration, so we need to parse the type.
// cir.global @a : !cir.int<s, 32>
if (parser.parseColonType(opTy))
return failure();
} else {
// Parse constant with initializer, examples:
// cir.global @y = #cir.fp<1.250000e+00> : !cir.double
// cir.global @rgb = #cir.const_array<[...] : !cir.array<i8 x 3>>
if (parseConstantValue(parser, initialValueAttr).failed())
return failure();
assert(mlir::isa<mlir::TypedAttr>(initialValueAttr) &&
"Non-typed attrs shouldn't appear here.");
auto typedAttr = mlir::cast<mlir::TypedAttr>(initialValueAttr);
opTy = typedAttr.getType();
}
typeAttr = TypeAttr::get(opTy);
return success();
}
//===----------------------------------------------------------------------===//
// GetGlobalOp
//===----------------------------------------------------------------------===//
LogicalResult
cir::GetGlobalOp::verifySymbolUses(SymbolTableCollection &symbolTable) {
// Verify that the result type underlying pointer type matches the type of
// the referenced cir.global or cir.func op.
mlir::Operation *op =
symbolTable.lookupNearestSymbolFrom(*this, getNameAttr());
if (op == nullptr || !(isa<GlobalOp>(op) || isa<FuncOp>(op)))
return emitOpError("'")
<< getName()
<< "' does not reference a valid cir.global or cir.func";
mlir::Type symTy;
if (auto g = dyn_cast<GlobalOp>(op)) {
symTy = g.getSymType();
assert(!cir::MissingFeatures::addressSpace());
assert(!cir::MissingFeatures::opGlobalThreadLocal());
} else if (auto f = dyn_cast<FuncOp>(op)) {
symTy = f.getFunctionType();
} else {
llvm_unreachable("Unexpected operation for GetGlobalOp");
}
auto resultType = dyn_cast<PointerType>(getAddr().getType());
if (!resultType || symTy != resultType.getPointee())
return emitOpError("result type pointee type '")
<< resultType.getPointee() << "' does not match type " << symTy
<< " of the global @" << getName();
return success();
}
//===----------------------------------------------------------------------===//
// VTableAddrPointOp
//===----------------------------------------------------------------------===//
LogicalResult
cir::VTableAddrPointOp::verifySymbolUses(SymbolTableCollection &symbolTable) {
StringRef name = getName();
// Verify that the result type underlying pointer type matches the type of
// the referenced cir.global or cir.func op.
auto op = symbolTable.lookupNearestSymbolFrom<GlobalOp>(*this, getNameAttr());
if (!op)
return emitOpError("'")
<< name << "' does not reference a valid cir.global";
std::optional<mlir::Attribute> init = op.getInitialValue();
if (!init)
return success();
assert(!cir::MissingFeatures::vtableInitializer());
return success();
}
//===----------------------------------------------------------------------===//
// FuncOp
//===----------------------------------------------------------------------===//
/// Returns the name used for the linkage attribute. This *must* correspond to
/// the name of the attribute in ODS.
static llvm::StringRef getLinkageAttrNameString() { return "linkage"; }
void cir::FuncOp::build(OpBuilder &builder, OperationState &result,
StringRef name, FuncType type,
GlobalLinkageKind linkage) {
result.addRegion();
result.addAttribute(SymbolTable::getSymbolAttrName(),
builder.getStringAttr(name));
result.addAttribute(getFunctionTypeAttrName(result.name),
TypeAttr::get(type));
result.addAttribute(
getLinkageAttrNameString(),
GlobalLinkageKindAttr::get(builder.getContext(), linkage));
result.addAttribute(getGlobalVisibilityAttrName(result.name),
cir::VisibilityAttr::get(builder.getContext()));
}
ParseResult cir::FuncOp::parse(OpAsmParser &parser, OperationState &state) {
llvm::SMLoc loc = parser.getCurrentLocation();
mlir::Builder &builder = parser.getBuilder();
mlir::StringAttr noProtoNameAttr = getNoProtoAttrName(state.name);
mlir::StringAttr visNameAttr = getSymVisibilityAttrName(state.name);
mlir::StringAttr visibilityNameAttr = getGlobalVisibilityAttrName(state.name);
mlir::StringAttr dsoLocalNameAttr = getDsoLocalAttrName(state.name);
if (parser.parseOptionalKeyword(noProtoNameAttr).succeeded())
state.addAttribute(noProtoNameAttr, parser.getBuilder().getUnitAttr());
// Default to external linkage if no keyword is provided.
state.addAttribute(getLinkageAttrNameString(),
GlobalLinkageKindAttr::get(
parser.getContext(),
parseOptionalCIRKeyword<GlobalLinkageKind>(
parser, GlobalLinkageKind::ExternalLinkage)));
::llvm::StringRef visAttrStr;
if (parser.parseOptionalKeyword(&visAttrStr, {"private", "public", "nested"})
.succeeded()) {
state.addAttribute(visNameAttr,
parser.getBuilder().getStringAttr(visAttrStr));
}
cir::VisibilityAttr cirVisibilityAttr;
parseVisibilityAttr(parser, cirVisibilityAttr);
state.addAttribute(visibilityNameAttr, cirVisibilityAttr);
if (parser.parseOptionalKeyword(dsoLocalNameAttr).succeeded())
state.addAttribute(dsoLocalNameAttr, parser.getBuilder().getUnitAttr());
StringAttr nameAttr;
if (parser.parseSymbolName(nameAttr, SymbolTable::getSymbolAttrName(),
state.attributes))
return failure();
llvm::SmallVector<OpAsmParser::Argument, 8> arguments;
llvm::SmallVector<mlir::Type> resultTypes;
llvm::SmallVector<DictionaryAttr> resultAttrs;
bool isVariadic = false;
if (function_interface_impl::parseFunctionSignatureWithArguments(
parser, /*allowVariadic=*/true, arguments, isVariadic, resultTypes,
resultAttrs))
return failure();
llvm::SmallVector<mlir::Type> argTypes;
for (OpAsmParser::Argument &arg : arguments)
argTypes.push_back(arg.type);
if (resultTypes.size() > 1) {
return parser.emitError(
loc, "functions with multiple return types are not supported");
}
mlir::Type returnType =
(resultTypes.empty() ? cir::VoidType::get(builder.getContext())
: resultTypes.front());
cir::FuncType fnType = cir::FuncType::get(argTypes, returnType, isVariadic);
if (!fnType)
return failure();
state.addAttribute(getFunctionTypeAttrName(state.name),
TypeAttr::get(fnType));
bool hasAlias = false;
mlir::StringAttr aliaseeNameAttr = getAliaseeAttrName(state.name);
if (parser.parseOptionalKeyword("alias").succeeded()) {
if (parser.parseLParen().failed())
return failure();
mlir::StringAttr aliaseeAttr;
if (parser.parseOptionalSymbolName(aliaseeAttr).failed())
return failure();
state.addAttribute(aliaseeNameAttr, FlatSymbolRefAttr::get(aliaseeAttr));
if (parser.parseRParen().failed())
return failure();
hasAlias = true;
}
// Parse the optional function body.
auto *body = state.addRegion();
OptionalParseResult parseResult = parser.parseOptionalRegion(
*body, arguments, /*enableNameShadowing=*/false);
if (parseResult.has_value()) {
if (hasAlias)
return parser.emitError(loc, "function alias shall not have a body");
if (failed(*parseResult))
return failure();
// Function body was parsed, make sure its not empty.
if (body->empty())
return parser.emitError(loc, "expected non-empty function body");
}
return success();
}
// This function corresponds to `llvm::GlobalValue::isDeclaration` and should
// have a similar implementation. We don't currently ifuncs or materializable
// functions, but those should be handled here as they are implemented.
bool cir::FuncOp::isDeclaration() {
assert(!cir::MissingFeatures::supportIFuncAttr());
std::optional<StringRef> aliasee = getAliasee();
if (!aliasee)
return getFunctionBody().empty();
// Aliases are always definitions.
return false;
}
mlir::Region *cir::FuncOp::getCallableRegion() {
// TODO(CIR): This function will have special handling for aliases and a
// check for an external function, once those features have been upstreamed.
return &getBody();
}
void cir::FuncOp::print(OpAsmPrinter &p) {
if (getNoProto())
p << " no_proto";
if (getComdat())
p << " comdat";
if (getLinkage() != GlobalLinkageKind::ExternalLinkage)
p << ' ' << stringifyGlobalLinkageKind(getLinkage());
mlir::SymbolTable::Visibility vis = getVisibility();
if (vis != mlir::SymbolTable::Visibility::Public)
p << ' ' << vis;
cir::VisibilityAttr cirVisibilityAttr = getGlobalVisibilityAttr();
if (!cirVisibilityAttr.isDefault()) {
p << ' ';
printVisibilityAttr(p, cirVisibilityAttr);
}
if (getDsoLocal())
p << " dso_local";
p << ' ';
p.printSymbolName(getSymName());
cir::FuncType fnType = getFunctionType();
function_interface_impl::printFunctionSignature(
p, *this, fnType.getInputs(), fnType.isVarArg(), fnType.getReturnTypes());
if (std::optional<StringRef> aliaseeName = getAliasee()) {
p << " alias(";
p.printSymbolName(*aliaseeName);
p << ")";
}
// Print the body if this is not an external function.
Region &body = getOperation()->getRegion(0);
if (!body.empty()) {
p << ' ';
p.printRegion(body, /*printEntryBlockArgs=*/false,
/*printBlockTerminators=*/true);
}
}
mlir::LogicalResult cir::FuncOp::verify() {
llvm::SmallSet<llvm::StringRef, 16> labels;
llvm::SmallSet<llvm::StringRef, 16> gotos;
getOperation()->walk([&](mlir::Operation *op) {
if (auto lab = dyn_cast<cir::LabelOp>(op)) {
labels.insert(lab.getLabel());
} else if (auto goTo = dyn_cast<cir::GotoOp>(op)) {
gotos.insert(goTo.getLabel());
}
});
if (!labels.empty() || !gotos.empty()) {
llvm::SmallSet<llvm::StringRef, 16> mismatched =
llvm::set_difference(gotos, labels);
if (!mismatched.empty())
return emitOpError() << "goto/label mismatch";
}
return success();
}
//===----------------------------------------------------------------------===//
// BinOp
//===----------------------------------------------------------------------===//
LogicalResult cir::BinOp::verify() {
bool noWrap = getNoUnsignedWrap() || getNoSignedWrap();
bool saturated = getSaturated();
if (!isa<cir::IntType>(getType()) && noWrap)
return emitError()
<< "only operations on integer values may have nsw/nuw flags";
bool noWrapOps = getKind() == cir::BinOpKind::Add ||
getKind() == cir::BinOpKind::Sub ||
getKind() == cir::BinOpKind::Mul;
bool saturatedOps =
getKind() == cir::BinOpKind::Add || getKind() == cir::BinOpKind::Sub;
if (noWrap && !noWrapOps)
return emitError() << "The nsw/nuw flags are applicable to opcodes: 'add', "
"'sub' and 'mul'";
if (saturated && !saturatedOps)
return emitError() << "The saturated flag is applicable to opcodes: 'add' "
"and 'sub'";
if (noWrap && saturated)
return emitError() << "The nsw/nuw flags and the saturated flag are "
"mutually exclusive";
assert(!cir::MissingFeatures::complexType());
// TODO(cir): verify for complex binops
return mlir::success();
}
//===----------------------------------------------------------------------===//
// TernaryOp
//===----------------------------------------------------------------------===//
/// Given the region at `point`, or the parent operation if `point` is None,
/// return the successor regions. These are the regions that may be selected
/// during the flow of control. `operands` is a set of optional attributes that
/// correspond to a constant value for each operand, or null if that operand is
/// not a constant.
void cir::TernaryOp::getSuccessorRegions(
mlir::RegionBranchPoint point, SmallVectorImpl<RegionSuccessor> &regions) {
// The `true` and the `false` region branch back to the parent operation.
if (!point.isParent()) {
regions.push_back(RegionSuccessor(this->getODSResults(0)));
return;
}
// When branching from the parent operation, both the true and false
// regions are considered possible successors
regions.push_back(RegionSuccessor(&getTrueRegion()));
regions.push_back(RegionSuccessor(&getFalseRegion()));
}
void cir::TernaryOp::build(
OpBuilder &builder, OperationState &result, Value cond,
function_ref<void(OpBuilder &, Location)> trueBuilder,
function_ref<void(OpBuilder &, Location)> falseBuilder) {
result.addOperands(cond);
OpBuilder::InsertionGuard guard(builder);
Region *trueRegion = result.addRegion();
Block *block = builder.createBlock(trueRegion);
trueBuilder(builder, result.location);
Region *falseRegion = result.addRegion();
builder.createBlock(falseRegion);
falseBuilder(builder, result.location);
auto yield = dyn_cast<YieldOp>(block->getTerminator());
assert((yield && yield.getNumOperands() <= 1) &&
"expected zero or one result type");
if (yield.getNumOperands() == 1)
result.addTypes(TypeRange{yield.getOperandTypes().front()});
}
//===----------------------------------------------------------------------===//
// SelectOp
//===----------------------------------------------------------------------===//
OpFoldResult cir::SelectOp::fold(FoldAdaptor adaptor) {
mlir::Attribute condition = adaptor.getCondition();
if (condition) {
bool conditionValue = mlir::cast<cir::BoolAttr>(condition).getValue();
return conditionValue ? getTrueValue() : getFalseValue();
}
// cir.select if %0 then x else x -> x
mlir::Attribute trueValue = adaptor.getTrueValue();
mlir::Attribute falseValue = adaptor.getFalseValue();
if (trueValue == falseValue)
return trueValue;
if (getTrueValue() == getFalseValue())
return getTrueValue();
return {};
}
//===----------------------------------------------------------------------===//
// ShiftOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ShiftOp::verify() {
mlir::Operation *op = getOperation();
auto op0VecTy = mlir::dyn_cast<cir::VectorType>(op->getOperand(0).getType());
auto op1VecTy = mlir::dyn_cast<cir::VectorType>(op->getOperand(1).getType());
if (!op0VecTy ^ !op1VecTy)
return emitOpError() << "input types cannot be one vector and one scalar";
if (op0VecTy) {
if (op0VecTy.getSize() != op1VecTy.getSize())
return emitOpError() << "input vector types must have the same size";
auto opResultTy = mlir::dyn_cast<cir::VectorType>(getType());
if (!opResultTy)
return emitOpError() << "the type of the result must be a vector "
<< "if it is vector shift";
auto op0VecEleTy = mlir::cast<cir::IntType>(op0VecTy.getElementType());
auto op1VecEleTy = mlir::cast<cir::IntType>(op1VecTy.getElementType());
if (op0VecEleTy.getWidth() != op1VecEleTy.getWidth())
return emitOpError()
<< "vector operands do not have the same elements sizes";
auto resVecEleTy = mlir::cast<cir::IntType>(opResultTy.getElementType());
if (op0VecEleTy.getWidth() != resVecEleTy.getWidth())
return emitOpError() << "vector operands and result type do not have the "
"same elements sizes";
}
return mlir::success();
}
//===----------------------------------------------------------------------===//
// LabelOp Definitions
//===----------------------------------------------------------------------===//
LogicalResult cir::LabelOp::verify() {
mlir::Operation *op = getOperation();
mlir::Block *blk = op->getBlock();
if (&blk->front() != op)
return emitError() << "must be the first operation in a block";
return mlir::success();
}
//===----------------------------------------------------------------------===//
// UnaryOp
//===----------------------------------------------------------------------===//
LogicalResult cir::UnaryOp::verify() {
switch (getKind()) {
case cir::UnaryOpKind::Inc:
case cir::UnaryOpKind::Dec:
case cir::UnaryOpKind::Plus:
case cir::UnaryOpKind::Minus:
case cir::UnaryOpKind::Not:
// Nothing to verify.
return success();
}
llvm_unreachable("Unknown UnaryOp kind?");
}
static bool isBoolNot(cir::UnaryOp op) {
return isa<cir::BoolType>(op.getInput().getType()) &&
op.getKind() == cir::UnaryOpKind::Not;
}
// This folder simplifies the sequential boolean not operations.
// For instance, the next two unary operations will be eliminated:
//
// ```mlir
// %1 = cir.unary(not, %0) : !cir.bool, !cir.bool
// %2 = cir.unary(not, %1) : !cir.bool, !cir.bool
// ```
//
// and the argument of the first one (%0) will be used instead.
OpFoldResult cir::UnaryOp::fold(FoldAdaptor adaptor) {
if (auto poison =
mlir::dyn_cast_if_present<cir::PoisonAttr>(adaptor.getInput())) {
// Propagate poison values
return poison;
}
if (isBoolNot(*this))
if (auto previous = getInput().getDefiningOp<cir::UnaryOp>())
if (isBoolNot(previous))
return previous.getInput();
return {};
}
//===----------------------------------------------------------------------===//
// GetMemberOp Definitions
//===----------------------------------------------------------------------===//
LogicalResult cir::GetMemberOp::verify() {
const auto recordTy = dyn_cast<RecordType>(getAddrTy().getPointee());
if (!recordTy)
return emitError() << "expected pointer to a record type";
if (recordTy.getMembers().size() <= getIndex())
return emitError() << "member index out of bounds";
if (recordTy.getMembers()[getIndex()] != getType().getPointee())
return emitError() << "member type mismatch";
return mlir::success();
}
//===----------------------------------------------------------------------===//
// VecCreateOp
//===----------------------------------------------------------------------===//
OpFoldResult cir::VecCreateOp::fold(FoldAdaptor adaptor) {
if (llvm::any_of(getElements(), [](mlir::Value value) {
return !value.getDefiningOp<cir::ConstantOp>();
}))
return {};
return cir::ConstVectorAttr::get(
getType(), mlir::ArrayAttr::get(getContext(), adaptor.getElements()));
}
LogicalResult cir::VecCreateOp::verify() {
// Verify that the number of arguments matches the number of elements in the
// vector, and that the type of all the arguments matches the type of the
// elements in the vector.
const cir::VectorType vecTy = getType();
if (getElements().size() != vecTy.getSize()) {
return emitOpError() << "operand count of " << getElements().size()
<< " doesn't match vector type " << vecTy
<< " element count of " << vecTy.getSize();
}
const mlir::Type elementType = vecTy.getElementType();
for (const mlir::Value element : getElements()) {
if (element.getType() != elementType) {
return emitOpError() << "operand type " << element.getType()
<< " doesn't match vector element type "
<< elementType;
}
}
return success();
}
//===----------------------------------------------------------------------===//
// VecExtractOp
//===----------------------------------------------------------------------===//
OpFoldResult cir::VecExtractOp::fold(FoldAdaptor adaptor) {
const auto vectorAttr =
llvm::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getVec());
if (!vectorAttr)
return {};
const auto indexAttr =
llvm::dyn_cast_if_present<cir::IntAttr>(adaptor.getIndex());
if (!indexAttr)
return {};
const mlir::ArrayAttr elements = vectorAttr.getElts();
const uint64_t index = indexAttr.getUInt();
if (index >= elements.size())
return {};
return elements[index];
}
//===----------------------------------------------------------------------===//
// VecCmpOp
//===----------------------------------------------------------------------===//
OpFoldResult cir::VecCmpOp::fold(FoldAdaptor adaptor) {
auto lhsVecAttr =
mlir::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getLhs());
auto rhsVecAttr =
mlir::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getRhs());
if (!lhsVecAttr || !rhsVecAttr)
return {};
mlir::Type inputElemTy =
mlir::cast<cir::VectorType>(lhsVecAttr.getType()).getElementType();
if (!isAnyIntegerOrFloatingPointType(inputElemTy))
return {};
cir::CmpOpKind opKind = adaptor.getKind();
mlir::ArrayAttr lhsVecElhs = lhsVecAttr.getElts();
mlir::ArrayAttr rhsVecElhs = rhsVecAttr.getElts();
uint64_t vecSize = lhsVecElhs.size();
SmallVector<mlir::Attribute, 16> elements(vecSize);
bool isIntAttr = vecSize && mlir::isa<cir::IntAttr>(lhsVecElhs[0]);
for (uint64_t i = 0; i < vecSize; i++) {
mlir::Attribute lhsAttr = lhsVecElhs[i];
mlir::Attribute rhsAttr = rhsVecElhs[i];
int cmpResult = 0;
switch (opKind) {
case cir::CmpOpKind::lt: {
if (isIntAttr) {
cmpResult = mlir::cast<cir::IntAttr>(lhsAttr).getSInt() <
mlir::cast<cir::IntAttr>(rhsAttr).getSInt();
} else {
cmpResult = mlir::cast<cir::FPAttr>(lhsAttr).getValue() <
mlir::cast<cir::FPAttr>(rhsAttr).getValue();
}
break;
}
case cir::CmpOpKind::le: {
if (isIntAttr) {
cmpResult = mlir::cast<cir::IntAttr>(lhsAttr).getSInt() <=
mlir::cast<cir::IntAttr>(rhsAttr).getSInt();
} else {
cmpResult = mlir::cast<cir::FPAttr>(lhsAttr).getValue() <=
mlir::cast<cir::FPAttr>(rhsAttr).getValue();
}
break;
}
case cir::CmpOpKind::gt: {
if (isIntAttr) {
cmpResult = mlir::cast<cir::IntAttr>(lhsAttr).getSInt() >
mlir::cast<cir::IntAttr>(rhsAttr).getSInt();
} else {
cmpResult = mlir::cast<cir::FPAttr>(lhsAttr).getValue() >
mlir::cast<cir::FPAttr>(rhsAttr).getValue();
}
break;
}
case cir::CmpOpKind::ge: {
if (isIntAttr) {
cmpResult = mlir::cast<cir::IntAttr>(lhsAttr).getSInt() >=
mlir::cast<cir::IntAttr>(rhsAttr).getSInt();
} else {
cmpResult = mlir::cast<cir::FPAttr>(lhsAttr).getValue() >=
mlir::cast<cir::FPAttr>(rhsAttr).getValue();
}
break;
}
case cir::CmpOpKind::eq: {
if (isIntAttr) {
cmpResult = mlir::cast<cir::IntAttr>(lhsAttr).getSInt() ==
mlir::cast<cir::IntAttr>(rhsAttr).getSInt();
} else {
cmpResult = mlir::cast<cir::FPAttr>(lhsAttr).getValue() ==
mlir::cast<cir::FPAttr>(rhsAttr).getValue();
}
break;
}
case cir::CmpOpKind::ne: {
if (isIntAttr) {
cmpResult = mlir::cast<cir::IntAttr>(lhsAttr).getSInt() !=
mlir::cast<cir::IntAttr>(rhsAttr).getSInt();
} else {
cmpResult = mlir::cast<cir::FPAttr>(lhsAttr).getValue() !=
mlir::cast<cir::FPAttr>(rhsAttr).getValue();
}
break;
}
}
elements[i] = cir::IntAttr::get(getType().getElementType(), cmpResult);
}
return cir::ConstVectorAttr::get(
getType(), mlir::ArrayAttr::get(getContext(), elements));
}
//===----------------------------------------------------------------------===//
// VecShuffleOp
//===----------------------------------------------------------------------===//
OpFoldResult cir::VecShuffleOp::fold(FoldAdaptor adaptor) {
auto vec1Attr =
mlir::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getVec1());
auto vec2Attr =
mlir::dyn_cast_if_present<cir::ConstVectorAttr>(adaptor.getVec2());
if (!vec1Attr || !vec2Attr)
return {};
mlir::Type vec1ElemTy =
mlir::cast<cir::VectorType>(vec1Attr.getType()).getElementType();
mlir::ArrayAttr vec1Elts = vec1Attr.getElts();
mlir::ArrayAttr vec2Elts = vec2Attr.getElts();
mlir::ArrayAttr indicesElts = adaptor.getIndices();
SmallVector<mlir::Attribute, 16> elements;
elements.reserve(indicesElts.size());
uint64_t vec1Size = vec1Elts.size();
for (const auto &idxAttr : indicesElts.getAsRange<cir::IntAttr>()) {
if (idxAttr.getSInt() == -1) {
elements.push_back(cir::UndefAttr::get(vec1ElemTy));
continue;
}
uint64_t idxValue = idxAttr.getUInt();
elements.push_back(idxValue < vec1Size ? vec1Elts[idxValue]
: vec2Elts[idxValue - vec1Size]);
}
return cir::ConstVectorAttr::get(
getType(), mlir::ArrayAttr::get(getContext(), elements));
}
LogicalResult cir::VecShuffleOp::verify() {
// The number of elements in the indices array must match the number of
// elements in the result type.
if (getIndices().size() != getResult().getType().getSize()) {
return emitOpError() << ": the number of elements in " << getIndices()
<< " and " << getResult().getType() << " don't match";
}
// The element types of the two input vectors and of the result type must
// match.
if (getVec1().getType().getElementType() !=
getResult().getType().getElementType()) {
return emitOpError() << ": element types of " << getVec1().getType()
<< " and " << getResult().getType() << " don't match";
}
const uint64_t maxValidIndex =
getVec1().getType().getSize() + getVec2().getType().getSize() - 1;
if (llvm::any_of(
getIndices().getAsRange<cir::IntAttr>(), [&](cir::IntAttr idxAttr) {
return idxAttr.getSInt() != -1 && idxAttr.getUInt() > maxValidIndex;
})) {
return emitOpError() << ": index for __builtin_shufflevector must be "
"less than the total number of vector elements";
}
return success();
}
//===----------------------------------------------------------------------===//
// VecShuffleDynamicOp
//===----------------------------------------------------------------------===//
OpFoldResult cir::VecShuffleDynamicOp::fold(FoldAdaptor adaptor) {
mlir::Attribute vec = adaptor.getVec();
mlir::Attribute indices = adaptor.getIndices();
if (mlir::isa_and_nonnull<cir::ConstVectorAttr>(vec) &&
mlir::isa_and_nonnull<cir::ConstVectorAttr>(indices)) {
auto vecAttr = mlir::cast<cir::ConstVectorAttr>(vec);
auto indicesAttr = mlir::cast<cir::ConstVectorAttr>(indices);
mlir::ArrayAttr vecElts = vecAttr.getElts();
mlir::ArrayAttr indicesElts = indicesAttr.getElts();
const uint64_t numElements = vecElts.size();
SmallVector<mlir::Attribute, 16> elements;
elements.reserve(numElements);
const uint64_t maskBits = llvm::NextPowerOf2(numElements - 1) - 1;
for (const auto &idxAttr : indicesElts.getAsRange<cir::IntAttr>()) {
uint64_t idxValue = idxAttr.getUInt();
uint64_t newIdx = idxValue & maskBits;
elements.push_back(vecElts[newIdx]);
}
return cir::ConstVectorAttr::get(
getType(), mlir::ArrayAttr::get(getContext(), elements));
}
return {};
}
LogicalResult cir::VecShuffleDynamicOp::verify() {
// The number of elements in the two input vectors must match.
if (getVec().getType().getSize() !=
mlir::cast<cir::VectorType>(getIndices().getType()).getSize()) {
return emitOpError() << ": the number of elements in " << getVec().getType()
<< " and " << getIndices().getType() << " don't match";
}
return success();
}
//===----------------------------------------------------------------------===//
// VecTernaryOp
//===----------------------------------------------------------------------===//
LogicalResult cir::VecTernaryOp::verify() {
// Verify that the condition operand has the same number of elements as the
// other operands. (The automatic verification already checked that all
// operands are vector types and that the second and third operands are the
// same type.)
if (getCond().getType().getSize() != getLhs().getType().getSize()) {
return emitOpError() << ": the number of elements in "
<< getCond().getType() << " and " << getLhs().getType()
<< " don't match";
}
return success();
}
OpFoldResult cir::VecTernaryOp::fold(FoldAdaptor adaptor) {
mlir::Attribute cond = adaptor.getCond();
mlir::Attribute lhs = adaptor.getLhs();
mlir::Attribute rhs = adaptor.getRhs();
if (!mlir::isa_and_nonnull<cir::ConstVectorAttr>(cond) ||
!mlir::isa_and_nonnull<cir::ConstVectorAttr>(lhs) ||
!mlir::isa_and_nonnull<cir::ConstVectorAttr>(rhs))
return {};
auto condVec = mlir::cast<cir::ConstVectorAttr>(cond);
auto lhsVec = mlir::cast<cir::ConstVectorAttr>(lhs);
auto rhsVec = mlir::cast<cir::ConstVectorAttr>(rhs);
mlir::ArrayAttr condElts = condVec.getElts();
SmallVector<mlir::Attribute, 16> elements;
elements.reserve(condElts.size());
for (const auto &[idx, condAttr] :
llvm::enumerate(condElts.getAsRange<cir::IntAttr>())) {
if (condAttr.getSInt()) {
elements.push_back(lhsVec.getElts()[idx]);
} else {
elements.push_back(rhsVec.getElts()[idx]);
}
}
cir::VectorType vecTy = getLhs().getType();
return cir::ConstVectorAttr::get(
vecTy, mlir::ArrayAttr::get(getContext(), elements));
}
//===----------------------------------------------------------------------===//
// ComplexCreateOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ComplexCreateOp::verify() {
if (getType().getElementType() != getReal().getType()) {
emitOpError()
<< "operand type of cir.complex.create does not match its result type";
return failure();
}
return success();
}
OpFoldResult cir::ComplexCreateOp::fold(FoldAdaptor adaptor) {
mlir::Attribute real = adaptor.getReal();
mlir::Attribute imag = adaptor.getImag();
if (!real || !imag)
return {};
// When both of real and imag are constants, we can fold the operation into an
// `#cir.const_complex` operation.
auto realAttr = mlir::cast<mlir::TypedAttr>(real);
auto imagAttr = mlir::cast<mlir::TypedAttr>(imag);
return cir::ConstComplexAttr::get(realAttr, imagAttr);
}
//===----------------------------------------------------------------------===//
// ComplexRealOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ComplexRealOp::verify() {
if (getType() != getOperand().getType().getElementType()) {
emitOpError() << ": result type does not match operand type";
return failure();
}
return success();
}
OpFoldResult cir::ComplexRealOp::fold(FoldAdaptor adaptor) {
if (auto complexCreateOp = getOperand().getDefiningOp<cir::ComplexCreateOp>())
return complexCreateOp.getOperand(0);
auto complex =
mlir::cast_if_present<cir::ConstComplexAttr>(adaptor.getOperand());
return complex ? complex.getReal() : nullptr;
}
//===----------------------------------------------------------------------===//
// ComplexImagOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ComplexImagOp::verify() {
if (getType() != getOperand().getType().getElementType()) {
emitOpError() << ": result type does not match operand type";
return failure();
}
return success();
}
OpFoldResult cir::ComplexImagOp::fold(FoldAdaptor adaptor) {
if (auto complexCreateOp = getOperand().getDefiningOp<cir::ComplexCreateOp>())
return complexCreateOp.getOperand(1);
auto complex =
mlir::cast_if_present<cir::ConstComplexAttr>(adaptor.getOperand());
return complex ? complex.getImag() : nullptr;
}
//===----------------------------------------------------------------------===//
// ComplexRealPtrOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ComplexRealPtrOp::verify() {
mlir::Type resultPointeeTy = getType().getPointee();
cir::PointerType operandPtrTy = getOperand().getType();
auto operandPointeeTy =
mlir::cast<cir::ComplexType>(operandPtrTy.getPointee());
if (resultPointeeTy != operandPointeeTy.getElementType()) {
return emitOpError() << ": result type does not match operand type";
}
return success();
}
//===----------------------------------------------------------------------===//
// ComplexImagPtrOp
//===----------------------------------------------------------------------===//
LogicalResult cir::ComplexImagPtrOp::verify() {
mlir::Type resultPointeeTy = getType().getPointee();
cir::PointerType operandPtrTy = getOperand().getType();
auto operandPointeeTy =
mlir::cast<cir::ComplexType>(operandPtrTy.getPointee());
if (resultPointeeTy != operandPointeeTy.getElementType()) {
return emitOpError()
<< "cir.complex.imag_ptr result type does not match operand type";
}
return success();
}
//===----------------------------------------------------------------------===//
// Bit manipulation operations
//===----------------------------------------------------------------------===//
static OpFoldResult
foldUnaryBitOp(mlir::Attribute inputAttr,
llvm::function_ref<llvm::APInt(const llvm::APInt &)> func,
bool poisonZero = false) {
if (mlir::isa_and_present<cir::PoisonAttr>(inputAttr)) {
// Propagate poison value
return inputAttr;
}
auto input = mlir::dyn_cast_if_present<IntAttr>(inputAttr);
if (!input)
return nullptr;
llvm::APInt inputValue = input.getValue();
if (poisonZero && inputValue.isZero())
return cir::PoisonAttr::get(input.getType());
llvm::APInt resultValue = func(inputValue);
return IntAttr::get(input.getType(), resultValue);
}
OpFoldResult BitClrsbOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(adaptor.getInput(), [](const llvm::APInt &inputValue) {
unsigned resultValue =
inputValue.getBitWidth() - inputValue.getSignificantBits();
return llvm::APInt(inputValue.getBitWidth(), resultValue);
});
}
OpFoldResult BitClzOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(
adaptor.getInput(),
[](const llvm::APInt &inputValue) {
unsigned resultValue = inputValue.countLeadingZeros();
return llvm::APInt(inputValue.getBitWidth(), resultValue);
},
getPoisonZero());
}
OpFoldResult BitCtzOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(
adaptor.getInput(),
[](const llvm::APInt &inputValue) {
return llvm::APInt(inputValue.getBitWidth(),
inputValue.countTrailingZeros());
},
getPoisonZero());
}
OpFoldResult BitFfsOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(adaptor.getInput(), [](const llvm::APInt &inputValue) {
unsigned trailingZeros = inputValue.countTrailingZeros();
unsigned result =
trailingZeros == inputValue.getBitWidth() ? 0 : trailingZeros + 1;
return llvm::APInt(inputValue.getBitWidth(), result);
});
}
OpFoldResult BitParityOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(adaptor.getInput(), [](const llvm::APInt &inputValue) {
return llvm::APInt(inputValue.getBitWidth(), inputValue.popcount() % 2);
});
}
OpFoldResult BitPopcountOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(adaptor.getInput(), [](const llvm::APInt &inputValue) {
return llvm::APInt(inputValue.getBitWidth(), inputValue.popcount());
});
}
OpFoldResult BitReverseOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(adaptor.getInput(), [](const llvm::APInt &inputValue) {
return inputValue.reverseBits();
});
}
OpFoldResult ByteSwapOp::fold(FoldAdaptor adaptor) {
return foldUnaryBitOp(adaptor.getInput(), [](const llvm::APInt &inputValue) {
return inputValue.byteSwap();
});
}
OpFoldResult RotateOp::fold(FoldAdaptor adaptor) {
if (mlir::isa_and_present<cir::PoisonAttr>(adaptor.getInput()) ||
mlir::isa_and_present<cir::PoisonAttr>(adaptor.getAmount())) {
// Propagate poison values
return cir::PoisonAttr::get(getType());
}
auto input = mlir::dyn_cast_if_present<IntAttr>(adaptor.getInput());
auto amount = mlir::dyn_cast_if_present<IntAttr>(adaptor.getAmount());
if (!input && !amount)
return nullptr;
// We could fold cir.rotate even if one of its two operands is not a constant:
// - `cir.rotate left/right %0, 0` could be folded into just %0 even if %0
// is not a constant.
// - `cir.rotate left/right 0/0b111...111, %0` could be folded into 0 or
// 0b111...111 even if %0 is not a constant.
llvm::APInt inputValue;
if (input) {
inputValue = input.getValue();
if (inputValue.isZero() || inputValue.isAllOnes()) {
// An input value of all 0s or all 1s will not change after rotation
return input;
}
}
uint64_t amountValue;
if (amount) {
amountValue = amount.getValue().urem(getInput().getType().getWidth());
if (amountValue == 0) {
// A shift amount of 0 will not change the input value
return getInput();
}
}
if (!input || !amount)
return nullptr;
assert(inputValue.getBitWidth() == getInput().getType().getWidth() &&
"input value must have the same bit width as the input type");
llvm::APInt resultValue;
if (isRotateLeft())
resultValue = inputValue.rotl(amountValue);
else
resultValue = inputValue.rotr(amountValue);
return IntAttr::get(input.getContext(), input.getType(), resultValue);
}
//===----------------------------------------------------------------------===//
// InlineAsmOp
//===----------------------------------------------------------------------===//
void cir::InlineAsmOp::print(OpAsmPrinter &p) {
p << '(' << getAsmFlavor() << ", ";
p.increaseIndent();
p.printNewline();
llvm::SmallVector<std::string, 3> names{"out", "in", "in_out"};
auto *nameIt = names.begin();
auto *attrIt = getOperandAttrs().begin();
for (mlir::OperandRange ops : getAsmOperands()) {
p << *nameIt << " = ";
p << '[';
llvm::interleaveComma(llvm::make_range(ops.begin(), ops.end()), p,
[&](Value value) {
p.printOperand(value);
p << " : " << value.getType();
if (*attrIt)
p << " (maybe_memory)";
attrIt++;
});
p << "],";
p.printNewline();
++nameIt;
}
p << "{";
p.printString(getAsmString());
p << " ";
p.printString(getConstraints());
p << "}";
p.decreaseIndent();
p << ')';
if (getSideEffects())
p << " side_effects";
std::array elidedAttrs{
llvm::StringRef("asm_flavor"), llvm::StringRef("asm_string"),
llvm::StringRef("constraints"), llvm::StringRef("operand_attrs"),
llvm::StringRef("operands_segments"), llvm::StringRef("side_effects")};
p.printOptionalAttrDict(getOperation()->getAttrs(), elidedAttrs);
if (auto v = getRes())
p << " -> " << v.getType();
}
void cir::InlineAsmOp::build(OpBuilder &odsBuilder, OperationState &odsState,
ArrayRef<ValueRange> asmOperands,
StringRef asmString, StringRef constraints,
bool sideEffects, cir::AsmFlavor asmFlavor,
ArrayRef<Attribute> operandAttrs) {
// Set up the operands_segments for VariadicOfVariadic
SmallVector<int32_t> segments;
for (auto operandRange : asmOperands) {
segments.push_back(operandRange.size());
odsState.addOperands(operandRange);
}
odsState.addAttribute(
"operands_segments",
DenseI32ArrayAttr::get(odsBuilder.getContext(), segments));
odsState.addAttribute("asm_string", odsBuilder.getStringAttr(asmString));
odsState.addAttribute("constraints", odsBuilder.getStringAttr(constraints));
odsState.addAttribute("asm_flavor",
AsmFlavorAttr::get(odsBuilder.getContext(), asmFlavor));
if (sideEffects)
odsState.addAttribute("side_effects", odsBuilder.getUnitAttr());
odsState.addAttribute("operand_attrs", odsBuilder.getArrayAttr(operandAttrs));
}
ParseResult cir::InlineAsmOp::parse(OpAsmParser &parser,
OperationState &result) {
llvm::SmallVector<mlir::Attribute> operandAttrs;
llvm::SmallVector<int32_t> operandsGroupSizes;
std::string asmString, constraints;
Type resType;
MLIRContext *ctxt = parser.getBuilder().getContext();
auto error = [&](const Twine &msg) -> LogicalResult {
return parser.emitError(parser.getCurrentLocation(), msg);
};
auto expected = [&](const std::string &c) {
return error("expected '" + c + "'");
};
if (parser.parseLParen().failed())
return expected("(");
auto flavor = FieldParser<AsmFlavor, AsmFlavor>::parse(parser);
if (failed(flavor))
return error("Unknown AsmFlavor");
if (parser.parseComma().failed())
return expected(",");
auto parseValue = [&](Value &v) {
OpAsmParser::UnresolvedOperand op;
if (parser.parseOperand(op) || parser.parseColon())
return error("can't parse operand");
Type typ;
if (parser.parseType(typ).failed())
return error("can't parse operand type");
llvm::SmallVector<mlir::Value> tmp;
if (parser.resolveOperand(op, typ, tmp))
return error("can't resolve operand");
v = tmp[0];
return mlir::success();
};
auto parseOperands = [&](llvm::StringRef name) {
if (parser.parseKeyword(name).failed())
return error("expected " + name + " operands here");
if (parser.parseEqual().failed())
return expected("=");
if (parser.parseLSquare().failed())
return expected("[");
int size = 0;
if (parser.parseOptionalRSquare().succeeded()) {
operandsGroupSizes.push_back(size);
if (parser.parseComma())
return expected(",");
return mlir::success();
}
auto parseOperand = [&]() {
Value val;
if (parseValue(val).succeeded()) {
result.operands.push_back(val);
size++;
if (parser.parseOptionalLParen().failed()) {
operandAttrs.push_back(mlir::Attribute());
return mlir::success();
}
if (parser.parseKeyword("maybe_memory").succeeded()) {
operandAttrs.push_back(mlir::UnitAttr::get(ctxt));
if (parser.parseRParen())
return expected(")");
return mlir::success();
} else {
return expected("maybe_memory");
}
}
return mlir::failure();
};
if (parser.parseCommaSeparatedList(parseOperand).failed())
return mlir::failure();
if (parser.parseRSquare().failed() || parser.parseComma().failed())
return expected("]");
operandsGroupSizes.push_back(size);
return mlir::success();
};
if (parseOperands("out").failed() || parseOperands("in").failed() ||
parseOperands("in_out").failed())
return error("failed to parse operands");
if (parser.parseLBrace())
return expected("{");
if (parser.parseString(&asmString))
return error("asm string parsing failed");
if (parser.parseString(&constraints))
return error("constraints string parsing failed");
if (parser.parseRBrace())
return expected("}");
if (parser.parseRParen())
return expected(")");
if (parser.parseOptionalKeyword("side_effects").succeeded())
result.attributes.set("side_effects", UnitAttr::get(ctxt));
if (parser.parseOptionalArrow().succeeded() &&
parser.parseType(resType).failed())
return mlir::failure();
if (parser.parseOptionalAttrDict(result.attributes).failed())
return mlir::failure();
result.attributes.set("asm_flavor", AsmFlavorAttr::get(ctxt, *flavor));
result.attributes.set("asm_string", StringAttr::get(ctxt, asmString));
result.attributes.set("constraints", StringAttr::get(ctxt, constraints));
result.attributes.set("operand_attrs", ArrayAttr::get(ctxt, operandAttrs));
result.getOrAddProperties<InlineAsmOp::Properties>().operands_segments =
parser.getBuilder().getDenseI32ArrayAttr(operandsGroupSizes);
if (resType)
result.addTypes(TypeRange{resType});
return mlir::success();
}
//===----------------------------------------------------------------------===//
// TableGen'd op method definitions
//===----------------------------------------------------------------------===//
#define GET_OP_CLASSES
#include "clang/CIR/Dialect/IR/CIROps.cpp.inc"
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