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llvm / llvm-project / refs/tags/llvmorg-11.0.1 / . / mlir / tools / mlir-tblgen / OpDefinitionsGen.cpp
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//===- OpDefinitionsGen.cpp - MLIR op definitions generator ---------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// OpDefinitionsGen uses the description of operations to generate C++
// definitions for ops.
//
//===----------------------------------------------------------------------===//
#include "OpFormatGen.h"
#include "mlir/TableGen/Format.h"
#include "mlir/TableGen/GenInfo.h"
#include "mlir/TableGen/Interfaces.h"
#include "mlir/TableGen/OpClass.h"
#include "mlir/TableGen/OpTrait.h"
#include "mlir/TableGen/Operator.h"
#include "mlir/TableGen/SideEffects.h"
#include "llvm/ADT/Sequence.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/Signals.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include "llvm/TableGen/TableGenBackend.h"
#define DEBUG_TYPE "mlir-tblgen-opdefgen"
using namespace llvm;
using namespace mlir;
using namespace mlir::tblgen;
cl::OptionCategory opDefGenCat("Options for -gen-op-defs and -gen-op-decls");
static cl::opt<std::string> opIncFilter(
"op-include-regex",
cl::desc("Regex of name of op's to include (no filter if empty)"),
cl::cat(opDefGenCat));
static cl::opt<std::string> opExcFilter(
"op-exclude-regex",
cl::desc("Regex of name of op's to exclude (no filter if empty)"),
cl::cat(opDefGenCat));
static const char *const tblgenNamePrefix = "tblgen_";
static const char *const generatedArgName = "odsArg";
static const char *const builderOpState = "odsState";
// The logic to calculate the actual value range for a declared operand/result
// of an op with variadic operands/results. Note that this logic is not for
// general use; it assumes all variadic operands/results must have the same
// number of values.
//
// {0}: The list of whether each declared operand/result is variadic.
// {1}: The total number of non-variadic operands/results.
// {2}: The total number of variadic operands/results.
// {3}: The total number of actual values.
// {4}: "operand" or "result".
const char *sameVariadicSizeValueRangeCalcCode = R"(
bool isVariadic[] = {{{0}};
int prevVariadicCount = 0;
for (unsigned i = 0; i < index; ++i)
if (isVariadic[i]) ++prevVariadicCount;
// Calculate how many dynamic values a static variadic {4} corresponds to.
// This assumes all static variadic {4}s have the same dynamic value count.
int variadicSize = ({3} - {1}) / {2};
// `index` passed in as the parameter is the static index which counts each
// {4} (variadic or not) as size 1. So here for each previous static variadic
// {4}, we need to offset by (variadicSize - 1) to get where the dynamic
// value pack for this static {4} starts.
int start = index + (variadicSize - 1) * prevVariadicCount;
int size = isVariadic[index] ? variadicSize : 1;
return {{start, size};
)";
// The logic to calculate the actual value range for a declared operand/result
// of an op with variadic operands/results. Note that this logic is assumes
// the op has an attribute specifying the size of each operand/result segment
// (variadic or not).
//
// {0}: The name of the attribute specifying the segment sizes.
const char *adapterSegmentSizeAttrInitCode = R"(
assert(odsAttrs && "missing segment size attribute for op");
auto sizeAttr = odsAttrs.get("{0}").cast<::mlir::DenseIntElementsAttr>();
)";
const char *opSegmentSizeAttrInitCode = R"(
auto sizeAttr = getAttrOfType<::mlir::DenseIntElementsAttr>("{0}");
)";
const char *attrSizedSegmentValueRangeCalcCode = R"(
unsigned start = 0;
for (unsigned i = 0; i < index; ++i)
start += (*(sizeAttr.begin() + i)).getZExtValue();
unsigned size = (*(sizeAttr.begin() + index)).getZExtValue();
return {start, size};
)";
// The logic to build a range of either operand or result values.
//
// {0}: The begin iterator of the actual values.
// {1}: The call to generate the start and length of the value range.
const char *valueRangeReturnCode = R"(
auto valueRange = {1};
return {{std::next({0}, valueRange.first),
std::next({0}, valueRange.first + valueRange.second)};
)";
static const char *const opCommentHeader = R"(
//===----------------------------------------------------------------------===//
// {0} {1}
//===----------------------------------------------------------------------===//
)";
//===----------------------------------------------------------------------===//
// Utility structs and functions
//===----------------------------------------------------------------------===//
// Replaces all occurrences of `match` in `str` with `substitute`.
static std::string replaceAllSubstrs(std::string str, const std::string &match,
const std::string &substitute) {
std::string::size_type scanLoc = 0, matchLoc = std::string::npos;
while ((matchLoc = str.find(match, scanLoc)) != std::string::npos) {
str = str.replace(matchLoc, match.size(), substitute);
scanLoc = matchLoc + substitute.size();
}
return str;
}
// Returns whether the record has a value of the given name that can be returned
// via getValueAsString.
static inline bool hasStringAttribute(const Record &record,
StringRef fieldName) {
auto valueInit = record.getValueInit(fieldName);
return isa<CodeInit, StringInit>(valueInit);
}
static std::string getArgumentName(const Operator &op, int index) {
const auto &operand = op.getOperand(index);
if (!operand.name.empty())
return std::string(operand.name);
else
return std::string(formatv("{0}_{1}", generatedArgName, index));
}
// Returns true if we can use unwrapped value for the given `attr` in builders.
static bool canUseUnwrappedRawValue(const tblgen::Attribute &attr) {
return attr.getReturnType() != attr.getStorageType() &&
// We need to wrap the raw value into an attribute in the builder impl
// so we need to make sure that the attribute specifies how to do that.
!attr.getConstBuilderTemplate().empty();
}
//===----------------------------------------------------------------------===//
// Op emitter
//===----------------------------------------------------------------------===//
namespace {
// Simple RAII helper for defining ifdef-undef-endif scopes.
class IfDefScope {
public:
IfDefScope(StringRef name, raw_ostream &os) : name(name), os(os) {
os << "#ifdef " << name << "\n"
<< "#undef " << name << "\n\n";
}
~IfDefScope() { os << "\n#endif // " << name << "\n\n"; }
private:
StringRef name;
raw_ostream &os;
};
} // end anonymous namespace
namespace {
// Helper class to emit a record into the given output stream.
class OpEmitter {
public:
static void emitDecl(const Operator &op, raw_ostream &os);
static void emitDef(const Operator &op, raw_ostream &os);
private:
OpEmitter(const Operator &op);
void emitDecl(raw_ostream &os);
void emitDef(raw_ostream &os);
// Generates the OpAsmOpInterface for this operation if possible.
void genOpAsmInterface();
// Generates the `getOperationName` method for this op.
void genOpNameGetter();
// Generates getters for the attributes.
void genAttrGetters();
// Generates setter for the attributes.
void genAttrSetters();
// Generates getters for named operands.
void genNamedOperandGetters();
// Generates setters for named operands.
void genNamedOperandSetters();
// Generates getters for named results.
void genNamedResultGetters();
// Generates getters for named regions.
void genNamedRegionGetters();
// Generates getters for named successors.
void genNamedSuccessorGetters();
// Generates builder methods for the operation.
void genBuilder();
// Generates the build() method that takes each operand/attribute
// as a stand-alone parameter.
void genSeparateArgParamBuilder();
// Generates the build() method that takes each operand/attribute as a
// stand-alone parameter. The generated build() method uses first operand's
// type as all results' types.
void genUseOperandAsResultTypeSeparateParamBuilder();
// Generates the build() method that takes all operands/attributes
// collectively as one parameter. The generated build() method uses first
// operand's type as all results' types.
void genUseOperandAsResultTypeCollectiveParamBuilder();
// Generates the build() method that takes aggregate operands/attributes
// parameters. This build() method uses inferred types as result types.
// Requires: The type needs to be inferable via InferTypeOpInterface.
void genInferredTypeCollectiveParamBuilder();
// Generates the build() method that takes each operand/attribute as a
// stand-alone parameter. The generated build() method uses first attribute's
// type as all result's types.
void genUseAttrAsResultTypeBuilder();
// Generates the build() method that takes all result types collectively as
// one parameter. Similarly for operands and attributes.
void genCollectiveParamBuilder();
// The kind of parameter to generate for result types in builders.
enum class TypeParamKind {
None, // No result type in parameter list.
Separate, // A separate parameter for each result type.
Collective, // An ArrayRef<Type> for all result types.
};
// The kind of parameter to generate for attributes in builders.
enum class AttrParamKind {
WrappedAttr, // A wrapped MLIR Attribute instance.
UnwrappedValue, // A raw value without MLIR Attribute wrapper.
};
// Builds the parameter list for build() method of this op. This method writes
// to `paramList` the comma-separated parameter list and updates
// `resultTypeNames` with the names for parameters for specifying result
// types. The given `typeParamKind` and `attrParamKind` controls how result
// types and attributes are placed in the parameter list.
void buildParamList(std::string &paramList,
SmallVectorImpl<std::string> &resultTypeNames,
TypeParamKind typeParamKind,
AttrParamKind attrParamKind = AttrParamKind::WrappedAttr);
// Adds op arguments and regions into operation state for build() methods.
void genCodeForAddingArgAndRegionForBuilder(OpMethodBody &body,
bool isRawValueAttr = false);
// Generates canonicalizer declaration for the operation.
void genCanonicalizerDecls();
// Generates the folder declaration for the operation.
void genFolderDecls();
// Generates the parser for the operation.
void genParser();
// Generates the printer for the operation.
void genPrinter();
// Generates verify method for the operation.
void genVerifier();
// Generates verify statements for operands and results in the operation.
// The generated code will be attached to `body`.
void genOperandResultVerifier(OpMethodBody &body,
Operator::value_range values,
StringRef valueKind);
// Generates verify statements for regions in the operation.
// The generated code will be attached to `body`.
void genRegionVerifier(OpMethodBody &body);
// Generates verify statements for successors in the operation.
// The generated code will be attached to `body`.
void genSuccessorVerifier(OpMethodBody &body);
// Generates the traits used by the object.
void genTraits();
// Generate the OpInterface methods.
void genOpInterfaceMethods();
// Generate op interface method.
void genOpInterfaceMethod(const tblgen::InterfaceOpTrait *trait);
// Generate the side effect interface methods.
void genSideEffectInterfaceMethods();
// Generate the type inference interface methods.
void genTypeInterfaceMethods();
private:
// The TableGen record for this op.
// TODO: OpEmitter should not have a Record directly,
// it should rather go through the Operator for better abstraction.
const Record &def;
// The wrapper operator class for querying information from this op.
Operator op;
// The C++ code builder for this op
OpClass opClass;
// The format context for verification code generation.
FmtContext verifyCtx;
};
} // end anonymous namespace
// Populate the format context `ctx` with substitutions of attributes, operands
// and results.
// - attrGet corresponds to the name of the function to call to get value of
// attribute (the generated function call returns an Attribute);
// - operandGet corresponds to the name of the function with which to retrieve
// an operand (the generaed function call returns an OperandRange);
// - reultGet corresponds to the name of the function to get an result (the
// generated function call returns a ValueRange);
static void populateSubstitutions(const Operator &op, const char *attrGet,
const char *operandGet, const char *resultGet,
FmtContext &ctx) {
// Populate substitutions for attributes and named operands.
for (const auto &namedAttr : op.getAttributes())
ctx.addSubst(namedAttr.name,
formatv("{0}(\"{1}\")", attrGet, namedAttr.name));
for (int i = 0, e = op.getNumOperands(); i < e; ++i) {
auto &value = op.getOperand(i);
if (value.name.empty())
continue;
if (value.isVariadic())
ctx.addSubst(value.name, formatv("{0}({1})", operandGet, i));
else
ctx.addSubst(value.name, formatv("(*{0}({1}).begin())", operandGet, i));
}
// Populate substitutions for results.
for (int i = 0, e = op.getNumResults(); i < e; ++i) {
auto &value = op.getResult(i);
if (value.name.empty())
continue;
if (value.isVariadic())
ctx.addSubst(value.name, formatv("{0}({1})", resultGet, i));
else
ctx.addSubst(value.name, formatv("(*{0}({1}).begin())", resultGet, i));
}
}
// Generate attribute verification. If emitVerificationRequiringOp is set then
// only verification for attributes whose value depend on op being known are
// emitted, else only verification that doesn't depend on the op being known are
// generated.
// - emitErrorPrefix is the prefix for the error emitting call which consists
// of the entire function call up to start of error message fragment;
// - emitVerificationRequiringOp specifies whether verification should be
// emitted for verification that require the op to exist;
static void genAttributeVerifier(const Operator &op, const char *attrGet,
const Twine &emitErrorPrefix,
bool emitVerificationRequiringOp,
FmtContext &ctx, OpMethodBody &body) {
for (const auto &namedAttr : op.getAttributes()) {
const auto &attr = namedAttr.attr;
if (attr.isDerivedAttr())
continue;
auto attrName = namedAttr.name;
bool allowMissingAttr = attr.hasDefaultValue() || attr.isOptional();
auto attrPred = attr.getPredicate();
auto condition = attrPred.isNull() ? "" : attrPred.getCondition();
// There is a condition to emit only if the use of $_op and whether to
// emit verifications for op matches.
bool hasConditionToEmit = (!(condition.find("$_op") != StringRef::npos) ^
emitVerificationRequiringOp);
// Prefix with `tblgen_` to avoid hiding the attribute accessor.
auto varName = tblgenNamePrefix + attrName;
// If the attribute is
// 1. Required (not allowed missing) and not in op verification, or
// 2. Has a condition that will get verified
// then the variable will be used.
//
// Therefore, for optional attributes whose verification requires that an
// op already exists for verification/emitVerificationRequiringOp is set
// has nothing that can be verified here.
if ((allowMissingAttr || emitVerificationRequiringOp) &&
!hasConditionToEmit)
continue;
body << formatv(" {\n auto {0} = {1}(\"{2}\");\n", varName, attrGet,
attrName);
if (!emitVerificationRequiringOp && !allowMissingAttr) {
body << " if (!" << varName << ") return " << emitErrorPrefix
<< "\"requires attribute '" << attrName << "'\");\n";
}
if (!hasConditionToEmit) {
body << " }\n";
continue;
}
if (allowMissingAttr) {
// If the attribute has a default value, then only verify the predicate if
// set. This does effectively assume that the default value is valid.
// TODO: verify the debug value is valid (perhaps in debug mode only).
body << " if (" << varName << ") {\n";
}
body << tgfmt(" if (!($0)) return $1\"attribute '$2' "
"failed to satisfy constraint: $3\");\n",
/*ctx=*/nullptr, tgfmt(condition, &ctx.withSelf(varName)),
emitErrorPrefix, attrName, attr.getDescription());
if (allowMissingAttr)
body << " }\n";
body << " }\n";
}
}
OpEmitter::OpEmitter(const Operator &op)
: def(op.getDef()), op(op),
opClass(op.getCppClassName(), op.getExtraClassDeclaration()) {
verifyCtx.withOp("(*this->getOperation())");
genTraits();
// Generate C++ code for various op methods. The order here determines the
// methods in the generated file.
genOpAsmInterface();
genOpNameGetter();
genNamedOperandGetters();
genNamedOperandSetters();
genNamedResultGetters();
genNamedRegionGetters();
genNamedSuccessorGetters();
genAttrGetters();
genAttrSetters();
genBuilder();
genParser();
genPrinter();
genVerifier();
genCanonicalizerDecls();
genFolderDecls();
genOpInterfaceMethods();
generateOpFormat(op, opClass);
genSideEffectInterfaceMethods();
genTypeInterfaceMethods();
}
void OpEmitter::emitDecl(const Operator &op, raw_ostream &os) {
OpEmitter(op).emitDecl(os);
}
void OpEmitter::emitDef(const Operator &op, raw_ostream &os) {
OpEmitter(op).emitDef(os);
}
void OpEmitter::emitDecl(raw_ostream &os) { opClass.writeDeclTo(os); }
void OpEmitter::emitDef(raw_ostream &os) { opClass.writeDefTo(os); }
void OpEmitter::genAttrGetters() {
FmtContext fctx;
fctx.withBuilder("::mlir::Builder(this->getContext())");
// Emit the derived attribute body.
auto emitDerivedAttr = [&](StringRef name, Attribute attr) {
auto &method = opClass.newMethod(attr.getReturnType(), name);
auto &body = method.body();
body << " " << attr.getDerivedCodeBody() << "\n";
};
// Emit with return type specified.
auto emitAttrWithReturnType = [&](StringRef name, Attribute attr) {
auto &method = opClass.newMethod(attr.getReturnType(), name);
auto &body = method.body();
body << " auto attr = " << name << "Attr();\n";
if (attr.hasDefaultValue()) {
// Returns the default value if not set.
// TODO: this is inefficient, we are recreating the attribute for every
// call. This should be set instead.
std::string defaultValue = std::string(
tgfmt(attr.getConstBuilderTemplate(), &fctx, attr.getDefaultValue()));
body << " if (!attr)\n return "
<< tgfmt(attr.getConvertFromStorageCall(),
&fctx.withSelf(defaultValue))
<< ";\n";
}
body << " return "
<< tgfmt(attr.getConvertFromStorageCall(), &fctx.withSelf("attr"))
<< ";\n";
};
// Generate raw named accessor type. This is a wrapper class that allows
// referring to the attributes via accessors instead of having to use
// the string interface for better compile time verification.
auto emitAttrWithStorageType = [&](StringRef name, Attribute attr) {
auto &method =
opClass.newMethod(attr.getStorageType(), (name + "Attr").str());
auto &body = method.body();
body << " return this->getAttr(\"" << name << "\").";
if (attr.isOptional() || attr.hasDefaultValue())
body << "dyn_cast_or_null<";
else
body << "cast<";
body << attr.getStorageType() << ">();";
};
for (auto &namedAttr : op.getAttributes()) {
const auto &name = namedAttr.name;
const auto &attr = namedAttr.attr;
if (attr.isDerivedAttr()) {
emitDerivedAttr(name, attr);
} else {
emitAttrWithStorageType(name, attr);
emitAttrWithReturnType(name, attr);
}
}
auto derivedAttrs = make_filter_range(op.getAttributes(),
[](const NamedAttribute &namedAttr) {
return namedAttr.attr.isDerivedAttr();
});
if (!derivedAttrs.empty()) {
opClass.addTrait("::mlir::DerivedAttributeOpInterface::Trait");
// Generate helper method to query whether a named attribute is a derived
// attribute. This enables, for example, avoiding adding an attribute that
// overlaps with a derived attribute.
{
auto &method =
opClass.newMethod("bool", "isDerivedAttribute",
"::llvm::StringRef name", OpMethod::MP_Static);
auto &body = method.body();
for (auto namedAttr : derivedAttrs)
body << " if (name == \"" << namedAttr.name << "\") return true;\n";
body << " return false;";
}
// Generate method to materialize derived attributes as a DictionaryAttr.
{
OpMethod &method = opClass.newMethod("::mlir::DictionaryAttr",
"materializeDerivedAttributes");
auto &body = method.body();
auto nonMaterializable =
make_filter_range(derivedAttrs, [](const NamedAttribute &namedAttr) {
return namedAttr.attr.getConvertFromStorageCall().empty();
});
if (!nonMaterializable.empty()) {
std::string attrs;
llvm::raw_string_ostream os(attrs);
interleaveComma(nonMaterializable, os,
[&](const NamedAttribute &attr) { os << attr.name; });
PrintWarning(
op.getLoc(),
formatv(
"op has non-materialzable derived attributes '{0}', skipping",
os.str()));
body << formatv(" emitOpError(\"op has non-materializable derived "
"attributes '{0}'\");\n",
attrs);
body << " return nullptr;";
return;
}
body << " ::mlir::MLIRContext* ctx = getContext();\n";
body << " ::mlir::Builder odsBuilder(ctx); (void)odsBuilder;\n";
body << " return ::mlir::DictionaryAttr::get({\n";
interleave(
derivedAttrs, body,
[&](const NamedAttribute &namedAttr) {
auto tmpl = namedAttr.attr.getConvertFromStorageCall();
body << " {::mlir::Identifier::get(\"" << namedAttr.name
<< "\", ctx),\n"
<< tgfmt(tmpl, &fctx.withSelf(namedAttr.name + "()")
.withBuilder("odsBuilder")
.addSubst("_ctx", "ctx"))
<< "}";
},
",\n");
body << "\n }, ctx);";
}
}
}
void OpEmitter::genAttrSetters() {
// Generate raw named setter type. This is a wrapper class that allows setting
// to the attributes via setters instead of having to use the string interface
// for better compile time verification.
auto emitAttrWithStorageType = [&](StringRef name, Attribute attr) {
auto &method = opClass.newMethod("void", (name + "Attr").str(),
(attr.getStorageType() + " attr").str());
auto &body = method.body();
body << " this->getOperation()->setAttr(\"" << name << "\", attr);";
};
for (auto &namedAttr : op.getAttributes()) {
const auto &name = namedAttr.name;
const auto &attr = namedAttr.attr;
if (!attr.isDerivedAttr())
emitAttrWithStorageType(name, attr);
}
}
// Generates the code to compute the start and end index of an operand or result
// range.
template <typename RangeT>
static void
generateValueRangeStartAndEnd(Class &opClass, StringRef methodName,
int numVariadic, int numNonVariadic,
StringRef rangeSizeCall, bool hasAttrSegmentSize,
StringRef sizeAttrInit, RangeT &&odsValues) {
auto &method = opClass.newMethod("std::pair<unsigned, unsigned>", methodName,
"unsigned index");
if (numVariadic == 0) {
method.body() << " return {index, 1};\n";
} else if (hasAttrSegmentSize) {
method.body() << sizeAttrInit << attrSizedSegmentValueRangeCalcCode;
} else {
// Because the op can have arbitrarily interleaved variadic and non-variadic
// operands, we need to embed a list in the "sink" getter method for
// calculation at run-time.
llvm::SmallVector<StringRef, 4> isVariadic;
isVariadic.reserve(llvm::size(odsValues));
for (auto &it : odsValues)
isVariadic.push_back(it.isVariableLength() ? "true" : "false");
std::string isVariadicList = llvm::join(isVariadic, ", ");
method.body() << formatv(sameVariadicSizeValueRangeCalcCode, isVariadicList,
numNonVariadic, numVariadic, rangeSizeCall,
"operand");
}
}
// Generates the named operand getter methods for the given Operator `op` and
// puts them in `opClass`. Uses `rangeType` as the return type of getters that
// return a range of operands (individual operands are `Value ` and each
// element in the range must also be `Value `); use `rangeBeginCall` to get
// an iterator to the beginning of the operand range; use `rangeSizeCall` to
// obtain the number of operands. `getOperandCallPattern` contains the code
// necessary to obtain a single operand whose position will be substituted
// instead of
// "{0}" marker in the pattern. Note that the pattern should work for any kind
// of ops, in particular for one-operand ops that may not have the
// `getOperand(unsigned)` method.
static void generateNamedOperandGetters(const Operator &op, Class &opClass,
StringRef sizeAttrInit,
StringRef rangeType,
StringRef rangeBeginCall,
StringRef rangeSizeCall,
StringRef getOperandCallPattern) {
const int numOperands = op.getNumOperands();
const int numVariadicOperands = op.getNumVariableLengthOperands();
const int numNormalOperands = numOperands - numVariadicOperands;
const auto *sameVariadicSize =
op.getTrait("OpTrait::SameVariadicOperandSize");
const auto *attrSizedOperands =
op.getTrait("OpTrait::AttrSizedOperandSegments");
if (numVariadicOperands > 1 && !sameVariadicSize && !attrSizedOperands) {
PrintFatalError(op.getLoc(), "op has multiple variadic operands but no "
"specification over their sizes");
}
if (numVariadicOperands < 2 && attrSizedOperands) {
PrintFatalError(op.getLoc(), "op must have at least two variadic operands "
"to use 'AttrSizedOperandSegments' trait");
}
if (attrSizedOperands && sameVariadicSize) {
PrintFatalError(op.getLoc(),
"op cannot have both 'AttrSizedOperandSegments' and "
"'SameVariadicOperandSize' traits");
}
// First emit a few "sink" getter methods upon which we layer all nicer named
// getter methods.
generateValueRangeStartAndEnd(opClass, "getODSOperandIndexAndLength",
numVariadicOperands, numNormalOperands,
rangeSizeCall, attrSizedOperands, sizeAttrInit,
const_cast<Operator &>(op).getOperands());
auto &m = opClass.newMethod(rangeType, "getODSOperands", "unsigned index");
m.body() << formatv(valueRangeReturnCode, rangeBeginCall,
"getODSOperandIndexAndLength(index)");
// Then we emit nicer named getter methods by redirecting to the "sink" getter
// method.
for (int i = 0; i != numOperands; ++i) {
const auto &operand = op.getOperand(i);
if (operand.name.empty())
continue;
if (operand.isOptional()) {
auto &m = opClass.newMethod("::mlir::Value", operand.name);
m.body() << " auto operands = getODSOperands(" << i << ");\n"
<< " return operands.empty() ? Value() : *operands.begin();";
} else if (operand.isVariadic()) {
auto &m = opClass.newMethod(rangeType, operand.name);
m.body() << " return getODSOperands(" << i << ");";
} else {
auto &m = opClass.newMethod("::mlir::Value", operand.name);
m.body() << " return *getODSOperands(" << i << ").begin();";
}
}
}
void OpEmitter::genNamedOperandGetters() {
generateNamedOperandGetters(
op, opClass,
/*sizeAttrInit=*/
formatv(opSegmentSizeAttrInitCode, "operand_segment_sizes").str(),
/*rangeType=*/"::mlir::Operation::operand_range",
/*rangeBeginCall=*/"getOperation()->operand_begin()",
/*rangeSizeCall=*/"getOperation()->getNumOperands()",
/*getOperandCallPattern=*/"getOperation()->getOperand({0})");
}
void OpEmitter::genNamedOperandSetters() {
auto *attrSizedOperands = op.getTrait("OpTrait::AttrSizedOperandSegments");
for (int i = 0, e = op.getNumOperands(); i != e; ++i) {
const auto &operand = op.getOperand(i);
if (operand.name.empty())
continue;
auto &m = opClass.newMethod("::mlir::MutableOperandRange",
(operand.name + "Mutable").str());
auto &body = m.body();
body << " auto range = getODSOperandIndexAndLength(" << i << ");\n"
<< " return ::mlir::MutableOperandRange(getOperation(), "
"range.first, range.second";
if (attrSizedOperands)
body << ", ::mlir::MutableOperandRange::OperandSegment(" << i
<< "u, *getOperation()->getMutableAttrDict().getNamed("
"\"operand_segment_sizes\"))";
body << ");\n";
}
}
void OpEmitter::genNamedResultGetters() {
const int numResults = op.getNumResults();
const int numVariadicResults = op.getNumVariableLengthResults();
const int numNormalResults = numResults - numVariadicResults;
// If we have more than one variadic results, we need more complicated logic
// to calculate the value range for each result.
const auto *sameVariadicSize = op.getTrait("OpTrait::SameVariadicResultSize");
const auto *attrSizedResults =
op.getTrait("OpTrait::AttrSizedResultSegments");
if (numVariadicResults > 1 && !sameVariadicSize && !attrSizedResults) {
PrintFatalError(op.getLoc(), "op has multiple variadic results but no "
"specification over their sizes");
}
if (numVariadicResults < 2 && attrSizedResults) {
PrintFatalError(op.getLoc(), "op must have at least two variadic results "
"to use 'AttrSizedResultSegments' trait");
}
if (attrSizedResults && sameVariadicSize) {
PrintFatalError(op.getLoc(),
"op cannot have both 'AttrSizedResultSegments' and "
"'SameVariadicResultSize' traits");
}
generateValueRangeStartAndEnd(
opClass, "getODSResultIndexAndLength", numVariadicResults,
numNormalResults, "getOperation()->getNumResults()", attrSizedResults,
formatv(opSegmentSizeAttrInitCode, "result_segment_sizes").str(),
op.getResults());
auto &m = opClass.newMethod("::mlir::Operation::result_range",
"getODSResults", "unsigned index");
m.body() << formatv(valueRangeReturnCode, "getOperation()->result_begin()",
"getODSResultIndexAndLength(index)");
for (int i = 0; i != numResults; ++i) {
const auto &result = op.getResult(i);
if (result.name.empty())
continue;
if (result.isOptional()) {
auto &m = opClass.newMethod("::mlir::Value", result.name);
m.body()
<< " auto results = getODSResults(" << i << ");\n"
<< " return results.empty() ? ::mlir::Value() : *results.begin();";
} else if (result.isVariadic()) {
auto &m =
opClass.newMethod("::mlir::Operation::result_range", result.name);
m.body() << " return getODSResults(" << i << ");";
} else {
auto &m = opClass.newMethod("::mlir::Value", result.name);
m.body() << " return *getODSResults(" << i << ").begin();";
}
}
}
void OpEmitter::genNamedRegionGetters() {
unsigned numRegions = op.getNumRegions();
for (unsigned i = 0; i < numRegions; ++i) {
const auto &region = op.getRegion(i);
if (region.name.empty())
continue;
// Generate the accessors for a varidiadic region.
if (region.isVariadic()) {
auto &m =
opClass.newMethod("::mlir::MutableArrayRef<Region>", region.name);
m.body() << formatv(
" return this->getOperation()->getRegions().drop_front({0});", i);
continue;
}
auto &m = opClass.newMethod("::mlir::Region &", region.name);
m.body() << formatv(" return this->getOperation()->getRegion({0});", i);
}
}
void OpEmitter::genNamedSuccessorGetters() {
unsigned numSuccessors = op.getNumSuccessors();
for (unsigned i = 0; i < numSuccessors; ++i) {
const NamedSuccessor &successor = op.getSuccessor(i);
if (successor.name.empty())
continue;
// Generate the accessors for a variadic successor list.
if (successor.isVariadic()) {
auto &m = opClass.newMethod("::mlir::SuccessorRange", successor.name);
m.body() << formatv(
" return {std::next(this->getOperation()->successor_begin(), {0}), "
"this->getOperation()->successor_end()};",
i);
continue;
}
auto &m = opClass.newMethod("::mlir::Block *", successor.name);
m.body() << formatv(" return this->getOperation()->getSuccessor({0});", i);
}
}
static bool canGenerateUnwrappedBuilder(Operator &op) {
// If this op does not have native attributes at all, return directly to avoid
// redefining builders.
if (op.getNumNativeAttributes() == 0)
return false;
bool canGenerate = false;
// We are generating builders that take raw values for attributes. We need to
// make sure the native attributes have a meaningful "unwrapped" value type
// different from the wrapped mlir::Attribute type to avoid redefining
// builders. This checks for the op has at least one such native attribute.
for (int i = 0, e = op.getNumNativeAttributes(); i < e; ++i) {
NamedAttribute &namedAttr = op.getAttribute(i);
if (canUseUnwrappedRawValue(namedAttr.attr)) {
canGenerate = true;
break;
}
}
return canGenerate;
}
static bool canInferType(Operator &op) {
return op.getTrait("::mlir::InferTypeOpInterface::Trait") &&
op.getNumRegions() == 0;
}
void OpEmitter::genSeparateArgParamBuilder() {
SmallVector<AttrParamKind, 2> attrBuilderType;
attrBuilderType.push_back(AttrParamKind::WrappedAttr);
if (canGenerateUnwrappedBuilder(op))
attrBuilderType.push_back(AttrParamKind::UnwrappedValue);
// Emit with separate builders with or without unwrapped attributes and/or
// inferring result type.
auto emit = [&](AttrParamKind attrType, TypeParamKind paramKind,
bool inferType) {
std::string paramList;
llvm::SmallVector<std::string, 4> resultNames;
buildParamList(paramList, resultNames, paramKind, attrType);
auto &m =
opClass.newMethod("void", "build", paramList, OpMethod::MP_Static);
auto &body = m.body();
genCodeForAddingArgAndRegionForBuilder(
body, /*isRawValueAttr=*/attrType == AttrParamKind::UnwrappedValue);
// Push all result types to the operation state
if (inferType) {
// Generate builder that infers type too.
// TODO: Subsume this with general checking if type can be
// inferred automatically.
// TODO: Expand to handle regions.
body << formatv(R"(
::llvm::SmallVector<::mlir::Type, 2> inferredReturnTypes;
if (succeeded({0}::inferReturnTypes(odsBuilder.getContext(),
{1}.location, {1}.operands,
{1}.attributes.getDictionary({1}.getContext()),
/*regions=*/{{}, inferredReturnTypes)))
{1}.addTypes(inferredReturnTypes);
else
::llvm::report_fatal_error("Failed to infer result type(s).");)",
opClass.getClassName(), builderOpState);
return;
}
switch (paramKind) {
case TypeParamKind::None:
return;
case TypeParamKind::Separate:
for (int i = 0, e = op.getNumResults(); i < e; ++i) {
if (op.getResult(i).isOptional())
body << " if (" << resultNames[i] << ")\n ";
body << " " << builderOpState << ".addTypes(" << resultNames[i]
<< ");\n";
}
return;
case TypeParamKind::Collective: {
int numResults = op.getNumResults();
int numVariadicResults = op.getNumVariableLengthResults();
int numNonVariadicResults = numResults - numVariadicResults;
bool hasVariadicResult = numVariadicResults != 0;
// Avoid emitting "resultTypes.size() >= 0u" which is always true.
if (!(hasVariadicResult && numNonVariadicResults == 0))
body << " "
<< "assert(resultTypes.size() "
<< (hasVariadicResult ? ">=" : "==") << " "
<< numNonVariadicResults
<< "u && \"mismatched number of results\");\n";
body << " " << builderOpState << ".addTypes(resultTypes);\n";
}
return;
}
llvm_unreachable("unhandled TypeParamKind");
};
// A separate arg param builder method will have a signature which is
// ambiguous with the collective params build method (generated in
// `genCollectiveParamBuilder` function below) if it has a single
// `ArrayReg<Type>` parameter for result types and a single `ArrayRef<Value>`
// parameter for the operands, no parameters after that, and the collective
// params build method has `attributes` as its last parameter (with
// a default value). This will happen when all of the following are true:
// 1. [`attributes` as last parameter in collective params build method]:
// getNumVariadicRegions must be 0 (otherwise the collective params build
// method ends with a `numRegions` param, and we don't specify default
// value for attributes).
// 2. [single `ArrayRef<Value>` parameter for operands, and no parameters
// after that]: numArgs() must be 1 (if not, each arg gets a separate param
// in the build methods generated here) and the single arg must be a
// non-attribute variadic argument.
// 3. [single `ArrayReg<Type>` parameter for result types]:
// 3a. paramKind should be Collective, or
// 3b. paramKind should be Separate and there should be a single variadic
// result
//
// In that case, skip generating such ambiguous build methods here.
bool hasSingleVariadicResult =
op.getNumResults() == 1 && op.getResult(0).isVariadic();
bool hasSingleVariadicArg =
op.getNumArgs() == 1 &&
op.getArg(0).is<tblgen::NamedTypeConstraint *>() &&
op.getOperand(0).isVariadic();
bool hasNoVariadicRegions = op.getNumVariadicRegions() == 0;
for (auto attrType : attrBuilderType) {
// Case 3b above.
if (!(hasNoVariadicRegions && hasSingleVariadicArg &&
hasSingleVariadicResult))
emit(attrType, TypeParamKind::Separate, /*inferType=*/false);
if (canInferType(op))
emit(attrType, TypeParamKind::None, /*inferType=*/true);
// The separate arg + collective param kind method will be:
// (a) Same as the separate arg + separate param kind method if there is
// only one variadic result.
// (b) Ambiguous with the collective params method under conditions in (3a)
// above.
// In either case, skip generating such build method.
if (!hasSingleVariadicResult &&
!(hasNoVariadicRegions && hasSingleVariadicArg))
emit(attrType, TypeParamKind::Collective, /*inferType=*/false);
}
}
void OpEmitter::genUseOperandAsResultTypeCollectiveParamBuilder() {
// If this op has a variadic result, we cannot generate this builder because
// we don't know how many results to create.
if (op.getNumVariableLengthResults() != 0)
return;
int numResults = op.getNumResults();
// Signature
std::string params =
std::string("::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &") +
builderOpState +
", ::mlir::ValueRange operands, ::llvm::ArrayRef<::mlir::NamedAttribute> "
"attributes";
if (op.getNumVariadicRegions())
params += ", unsigned numRegions";
auto &m = opClass.newMethod("void", "build", params, OpMethod::MP_Static);
auto &body = m.body();
// Operands
body << " " << builderOpState << ".addOperands(operands);\n";
// Attributes
body << " " << builderOpState << ".addAttributes(attributes);\n";
// Create the correct number of regions
if (int numRegions = op.getNumRegions()) {
body << llvm::formatv(
" for (unsigned i = 0; i != {0}; ++i)\n",
(op.getNumVariadicRegions() ? "numRegions" : Twine(numRegions)));
body << " (void)" << builderOpState << ".addRegion();\n";
}
// Result types
SmallVector<std::string, 2> resultTypes(numResults, "operands[0].getType()");
body << " " << builderOpState << ".addTypes({"
<< llvm::join(resultTypes, ", ") << "});\n\n";
}
void OpEmitter::genInferredTypeCollectiveParamBuilder() {
// TODO: Expand to support regions.
const char *params =
"::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &{0}, "
"::mlir::ValueRange operands, ::llvm::ArrayRef<::mlir::NamedAttribute> "
"attributes";
auto &m =
opClass.newMethod("void", "build", formatv(params, builderOpState).str(),
OpMethod::MP_Static);
auto &body = m.body();
int numResults = op.getNumResults();
int numVariadicResults = op.getNumVariableLengthResults();
int numNonVariadicResults = numResults - numVariadicResults;
int numOperands = op.getNumOperands();
int numVariadicOperands = op.getNumVariableLengthOperands();
int numNonVariadicOperands = numOperands - numVariadicOperands;
// Operands
if (numVariadicOperands == 0 || numNonVariadicOperands != 0)
body << " assert(operands.size()"
<< (numVariadicOperands != 0 ? " >= " : " == ")
<< numNonVariadicOperands
<< "u && \"mismatched number of parameters\");\n";
body << " " << builderOpState << ".addOperands(operands);\n";
body << " " << builderOpState << ".addAttributes(attributes);\n";
// Create the correct number of regions
if (int numRegions = op.getNumRegions()) {
body << llvm::formatv(
" for (unsigned i = 0; i != {0}; ++i)\n",
(op.getNumVariadicRegions() ? "numRegions" : Twine(numRegions)));
body << " (void)" << builderOpState << ".addRegion();\n";
}
// Result types
body << formatv(R"(
::mlir::SmallVector<::mlir::Type, 2> inferredReturnTypes;
if (succeeded({0}::inferReturnTypes(odsBuilder.getContext(),
{1}.location, operands,
{1}.attributes.getDictionary({1}.getContext()),
/*regions=*/{{}, inferredReturnTypes))) {{)",
opClass.getClassName(), builderOpState);
if (numVariadicResults == 0 || numNonVariadicResults != 0)
body << " assert(inferredReturnTypes.size()"
<< (numVariadicResults != 0 ? " >= " : " == ") << numNonVariadicResults
<< "u && \"mismatched number of return types\");\n";
body << " " << builderOpState << ".addTypes(inferredReturnTypes);";
body << formatv(R"(
} else
::llvm::report_fatal_error("Failed to infer result type(s).");)",
opClass.getClassName(), builderOpState);
}
void OpEmitter::genUseOperandAsResultTypeSeparateParamBuilder() {
std::string paramList;
llvm::SmallVector<std::string, 4> resultNames;
buildParamList(paramList, resultNames, TypeParamKind::None);
auto &m = opClass.newMethod("void", "build", paramList, OpMethod::MP_Static);
genCodeForAddingArgAndRegionForBuilder(m.body());
auto numResults = op.getNumResults();
if (numResults == 0)
return;
// Push all result types to the operation state
const char *index = op.getOperand(0).isVariadic() ? ".front()" : "";
std::string resultType =
formatv("{0}{1}.getType()", getArgumentName(op, 0), index).str();
m.body() << " " << builderOpState << ".addTypes({" << resultType;
for (int i = 1; i != numResults; ++i)
m.body() << ", " << resultType;
m.body() << "});\n\n";
}
void OpEmitter::genUseAttrAsResultTypeBuilder() {
std::string params =
std::string("::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &") +
builderOpState +
", ::mlir::ValueRange operands, ::llvm::ArrayRef<::mlir::NamedAttribute> "
"attributes";
auto &m = opClass.newMethod("void", "build", params, OpMethod::MP_Static);
auto &body = m.body();
// Push all result types to the operation state
std::string resultType;
const auto &namedAttr = op.getAttribute(0);
body << " for (auto attr : attributes) {\n";
body << " if (attr.first != \"" << namedAttr.name << "\") continue;\n";
if (namedAttr.attr.isTypeAttr()) {
resultType = "attr.second.cast<::mlir::TypeAttr>().getValue()";
} else {
resultType = "attr.second.getType()";
}
// Operands
body << " " << builderOpState << ".addOperands(operands);\n";
// Attributes
body << " " << builderOpState << ".addAttributes(attributes);\n";
// Result types
SmallVector<std::string, 2> resultTypes(op.getNumResults(), resultType);
body << " " << builderOpState << ".addTypes({"
<< llvm::join(resultTypes, ", ") << "});\n";
body << " }\n";
}
void OpEmitter::genBuilder() {
// Handle custom builders if provided.
// TODO: Create wrapper class for OpBuilder to hide the native
// TableGen API calls here.
{
auto *listInit = dyn_cast_or_null<ListInit>(def.getValueInit("builders"));
if (listInit) {
for (Init *init : listInit->getValues()) {
Record *builderDef = cast<DefInit>(init)->getDef();
StringRef params = builderDef->getValueAsString("params");
StringRef body = builderDef->getValueAsString("body");
bool hasBody = !body.empty();
auto &method =
opClass.newMethod("void", "build", params, OpMethod::MP_Static,
/*declOnly=*/!hasBody);
if (hasBody)
method.body() << body;
}
}
if (op.skipDefaultBuilders()) {
if (!listInit || listInit->empty())
PrintFatalError(
op.getLoc(),
"default builders are skipped and no custom builders provided");
return;
}
}
// Generate default builders that requires all result type, operands, and
// attributes as parameters.
// We generate three classes of builders here:
// 1. one having a stand-alone parameter for each operand / attribute, and
genSeparateArgParamBuilder();
// 2. one having an aggregated parameter for all result types / operands /
// attributes, and
genCollectiveParamBuilder();
// 3. one having a stand-alone parameter for each operand and attribute,
// use the first operand or attribute's type as all result types
// to facilitate different call patterns.
if (op.getNumVariableLengthResults() == 0) {
if (op.getTrait("OpTrait::SameOperandsAndResultType")) {
genUseOperandAsResultTypeSeparateParamBuilder();
genUseOperandAsResultTypeCollectiveParamBuilder();
}
if (op.getTrait("OpTrait::FirstAttrDerivedResultType"))
genUseAttrAsResultTypeBuilder();
}
}
void OpEmitter::genCollectiveParamBuilder() {
int numResults = op.getNumResults();
int numVariadicResults = op.getNumVariableLengthResults();
int numNonVariadicResults = numResults - numVariadicResults;
int numOperands = op.getNumOperands();
int numVariadicOperands = op.getNumVariableLengthOperands();
int numNonVariadicOperands = numOperands - numVariadicOperands;
// Signature
std::string params =
std::string("::mlir::OpBuilder &, ::mlir::OperationState &") +
builderOpState +
", ::llvm::ArrayRef<::mlir::Type> resultTypes, ::mlir::ValueRange "
"operands, "
"::llvm::ArrayRef<::mlir::NamedAttribute> attributes";
if (op.getNumVariadicRegions()) {
params += ", unsigned numRegions";
} else {
// Provide default value for `attributes` since its the last parameter
params += " = {}";
}
auto &m = opClass.newMethod("void", "build", params, OpMethod::MP_Static);
auto &body = m.body();
// Operands
if (numVariadicOperands == 0 || numNonVariadicOperands != 0)
body << " assert(operands.size()"
<< (numVariadicOperands != 0 ? " >= " : " == ")
<< numNonVariadicOperands
<< "u && \"mismatched number of parameters\");\n";
body << " " << builderOpState << ".addOperands(operands);\n";
// Attributes
body << " " << builderOpState << ".addAttributes(attributes);\n";
// Create the correct number of regions
if (int numRegions = op.getNumRegions()) {
body << llvm::formatv(
" for (unsigned i = 0; i != {0}; ++i)\n",
(op.getNumVariadicRegions() ? "numRegions" : Twine(numRegions)));
body << " (void)" << builderOpState << ".addRegion();\n";
}
// Result types
if (numVariadicResults == 0 || numNonVariadicResults != 0)
body << " assert(resultTypes.size()"
<< (numVariadicResults != 0 ? " >= " : " == ") << numNonVariadicResults
<< "u && \"mismatched number of return types\");\n";
body << " " << builderOpState << ".addTypes(resultTypes);\n";
// Generate builder that infers type too.
// TODO: Expand to handle regions and successors.
if (canInferType(op) && op.getNumSuccessors() == 0)
genInferredTypeCollectiveParamBuilder();
}
void OpEmitter::buildParamList(std::string &paramList,
SmallVectorImpl<std::string> &resultTypeNames,
TypeParamKind typeParamKind,
AttrParamKind attrParamKind) {
resultTypeNames.clear();
auto numResults = op.getNumResults();
resultTypeNames.reserve(numResults);
paramList = "::mlir::OpBuilder &odsBuilder, ::mlir::OperationState &";
paramList.append(builderOpState);
switch (typeParamKind) {
case TypeParamKind::None:
break;
case TypeParamKind::Separate: {
// Add parameters for all return types
for (int i = 0; i < numResults; ++i) {
const auto &result = op.getResult(i);
std::string resultName = std::string(result.name);
if (resultName.empty())
resultName = std::string(formatv("resultType{0}", i));
if (result.isOptional())
paramList.append(", /*optional*/::mlir::Type ");
else if (result.isVariadic())
paramList.append(", ::llvm::ArrayRef<::mlir::Type> ");
else
paramList.append(", ::mlir::Type ");
paramList.append(resultName);
resultTypeNames.emplace_back(std::move(resultName));
}
} break;
case TypeParamKind::Collective: {
paramList.append(", ::llvm::ArrayRef<::mlir::Type> resultTypes");
resultTypeNames.push_back("resultTypes");
} break;
}
// Add parameters for all arguments (operands and attributes).
int numOperands = 0;
int numAttrs = 0;
int defaultValuedAttrStartIndex = op.getNumArgs();
if (attrParamKind == AttrParamKind::UnwrappedValue) {
// Calculate the start index from which we can attach default values in the
// builder declaration.
for (int i = op.getNumArgs() - 1; i >= 0; --i) {
auto *namedAttr = op.getArg(i).dyn_cast<tblgen::NamedAttribute *>();
if (!namedAttr || !namedAttr->attr.hasDefaultValue())
break;
if (!canUseUnwrappedRawValue(namedAttr->attr))
break;
// Creating an APInt requires us to provide bitwidth, value, and
// signedness, which is complicated compared to others. Similarly
// for APFloat.
// TODO: Adjust the 'returnType' field of such attributes
// to support them.
StringRef retType = namedAttr->attr.getReturnType();
if (retType == "::llvm::APInt" || retType == "::llvm::APFloat")
break;
defaultValuedAttrStartIndex = i;
}
}
for (int i = 0, e = op.getNumArgs(); i < e; ++i) {
auto argument = op.getArg(i);
if (argument.is<tblgen::NamedTypeConstraint *>()) {
const auto &operand = op.getOperand(numOperands);
if (operand.isOptional())
paramList.append(", /*optional*/::mlir::Value ");
else if (operand.isVariadic())
paramList.append(", ::mlir::ValueRange ");
else
paramList.append(", ::mlir::Value ");
paramList.append(getArgumentName(op, numOperands));
++numOperands;
} else {
const auto &namedAttr = op.getAttribute(numAttrs);
const auto &attr = namedAttr.attr;
paramList.append(", ");
if (attr.isOptional())
paramList.append("/*optional*/");
switch (attrParamKind) {
case AttrParamKind::WrappedAttr:
paramList.append(std::string(attr.getStorageType()));
break;
case AttrParamKind::UnwrappedValue:
if (canUseUnwrappedRawValue(attr)) {
paramList.append(std::string(attr.getReturnType()));
} else {
paramList.append(std::string(attr.getStorageType()));
}
break;
}
paramList.append(" ");
paramList.append(std::string(namedAttr.name));
// Attach default value if requested and possible.
if (attrParamKind == AttrParamKind::UnwrappedValue &&
i >= defaultValuedAttrStartIndex) {
bool isString = attr.getReturnType() == "::llvm::StringRef";
paramList.append(" = ");
if (isString)
paramList.append("\"");
paramList.append(std::string(attr.getDefaultValue()));
if (isString)
paramList.append("\"");
}
++numAttrs;
}
}
/// Insert parameters for each successor.
for (const NamedSuccessor &succ : op.getSuccessors()) {
paramList += (succ.isVariadic() ? ", ::llvm::ArrayRef<::mlir::Block *> "
: ", ::mlir::Block *");
paramList += succ.name;
}
/// Insert parameters for variadic regions.
for (const NamedRegion &region : op.getRegions()) {
if (region.isVariadic())
paramList += llvm::formatv(", unsigned {0}Count", region.name).str();
}
}
void OpEmitter::genCodeForAddingArgAndRegionForBuilder(OpMethodBody &body,
bool isRawValueAttr) {
// Push all operands to the result.
for (int i = 0, e = op.getNumOperands(); i < e; ++i) {
std::string argName = getArgumentName(op, i);
if (op.getOperand(i).isOptional())
body << " if (" << argName << ")\n ";
body << " " << builderOpState << ".addOperands(" << argName << ");\n";
}
// If the operation has the operand segment size attribute, add it here.
if (op.getTrait("OpTrait::AttrSizedOperandSegments")) {
body << " " << builderOpState
<< ".addAttribute(\"operand_segment_sizes\", "
"odsBuilder.getI32VectorAttr({";
interleaveComma(llvm::seq<int>(0, op.getNumOperands()), body, [&](int i) {
if (op.getOperand(i).isOptional())
body << "(" << getArgumentName(op, i) << " ? 1 : 0)";
else if (op.getOperand(i).isVariadic())
body << "static_cast<int32_t>(" << getArgumentName(op, i) << ".size())";
else
body << "1";
});
body << "}));\n";
}
// Push all attributes to the result.
for (const auto &namedAttr : op.getAttributes()) {
auto &attr = namedAttr.attr;
if (!attr.isDerivedAttr()) {
bool emitNotNullCheck = attr.isOptional();
if (emitNotNullCheck) {
body << formatv(" if ({0}) ", namedAttr.name) << "{\n";
}
if (isRawValueAttr && canUseUnwrappedRawValue(attr)) {
// If this is a raw value, then we need to wrap it in an Attribute
// instance.
FmtContext fctx;
fctx.withBuilder("odsBuilder");
std::string builderTemplate =
std::string(attr.getConstBuilderTemplate());
// For StringAttr, its constant builder call will wrap the input in
// quotes, which is correct for normal string literals, but incorrect
// here given we use function arguments. So we need to strip the
// wrapping quotes.
if (StringRef(builderTemplate).contains("\"$0\""))
builderTemplate = replaceAllSubstrs(builderTemplate, "\"$0\"", "$0");
std::string value =
std::string(tgfmt(builderTemplate, &fctx, namedAttr.name));
body << formatv(" {0}.addAttribute(\"{1}\", {2});\n", builderOpState,
namedAttr.name, value);
} else {
body << formatv(" {0}.addAttribute(\"{1}\", {1});\n", builderOpState,
namedAttr.name);
}
if (emitNotNullCheck) {
body << " }\n";
}
}
}
// Create the correct number of regions.
for (const NamedRegion &region : op.getRegions()) {
if (region.isVariadic())
body << formatv(" for (unsigned i = 0; i < {0}Count; ++i)\n ",
region.name);
body << " (void)" << builderOpState << ".addRegion();\n";
}
// Push all successors to the result.
for (const NamedSuccessor &namedSuccessor : op.getSuccessors()) {
body << formatv(" {0}.addSuccessors({1});\n", builderOpState,
namedSuccessor.name);
}
}
void OpEmitter::genCanonicalizerDecls() {
if (!def.getValueAsBit("hasCanonicalizer"))
return;
const char *const params =
"::mlir::OwningRewritePatternList &results, ::mlir::MLIRContext *context";
opClass.newMethod("void", "getCanonicalizationPatterns", params,
OpMethod::MP_Static, /*declOnly=*/true);
}
void OpEmitter::genFolderDecls() {
bool hasSingleResult =
op.getNumResults() == 1 && op.getNumVariableLengthResults() == 0;
if (def.getValueAsBit("hasFolder")) {
if (hasSingleResult) {
const char *const params = "::llvm::ArrayRef<::mlir::Attribute> operands";
opClass.newMethod("::mlir::OpFoldResult", "fold", params,
OpMethod::MP_None,
/*declOnly=*/true);
} else {
const char *const params =
"::llvm::ArrayRef<::mlir::Attribute> operands, "
"::llvm::SmallVectorImpl<::mlir::OpFoldResult> &results";
opClass.newMethod("::mlir::LogicalResult", "fold", params,
OpMethod::MP_None,
/*declOnly=*/true);
}
}
}
void OpEmitter::genOpInterfaceMethod(const tblgen::InterfaceOpTrait *opTrait) {
auto interface = opTrait->getOpInterface();
// Get the set of methods that should always be declared.
auto alwaysDeclaredMethodsVec = opTrait->getAlwaysDeclaredMethods();
llvm::StringSet<> alwaysDeclaredMethods;
alwaysDeclaredMethods.insert(alwaysDeclaredMethodsVec.begin(),
alwaysDeclaredMethodsVec.end());
for (const InterfaceMethod &method : interface.getMethods()) {
// Don't declare if the method has a body.
if (method.getBody())
continue;
// Don't declare if the method has a default implementation and the op
// didn't request that it always be declared.
if (method.getDefaultImplementation() &&
!alwaysDeclaredMethods.count(method.getName()))
continue;
std::string args;
llvm::raw_string_ostream os(args);
interleaveComma(method.getArguments(), os,
[&](const InterfaceMethod::Argument &arg) {
os << arg.type << " " << arg.name;
});
opClass.newMethod(method.getReturnType(), method.getName(), os.str(),
method.isStatic() ? OpMethod::MP_Static
: OpMethod::MP_None,
/*declOnly=*/true);
}
}
void OpEmitter::genOpInterfaceMethods() {
for (const auto &trait : op.getTraits()) {
if (const auto *opTrait = dyn_cast<tblgen::InterfaceOpTrait>(&trait))
if (opTrait->shouldDeclareMethods())
genOpInterfaceMethod(opTrait);
}
}
void OpEmitter::genSideEffectInterfaceMethods() {
enum EffectKind { Operand, Result, Static };
struct EffectLocation {
/// The effect applied.
SideEffect effect;
/// The index if the kind is either operand or result.
unsigned index : 30;
/// The kind of the location.
unsigned kind : 2;
};
StringMap<SmallVector<EffectLocation, 1>> interfaceEffects;
auto resolveDecorators = [&](Operator::var_decorator_range decorators,
unsigned index, unsigned kind) {
for (auto decorator : decorators)
if (SideEffect *effect = dyn_cast<SideEffect>(&decorator)) {
opClass.addTrait(effect->getInterfaceTrait());
interfaceEffects[effect->getBaseEffectName()].push_back(
EffectLocation{*effect, index, kind});
}
};
// Collect effects that were specified via:
/// Traits.
for (const auto &trait : op.getTraits()) {
const auto *opTrait = dyn_cast<tblgen::SideEffectTrait>(&trait);
if (!opTrait)
continue;
auto &effects = interfaceEffects[opTrait->getBaseEffectName()];
for (auto decorator : opTrait->getEffects())
effects.push_back(EffectLocation{cast<SideEffect>(decorator),
/*index=*/0, EffectKind::Static});
}
/// Operands.
for (unsigned i = 0, operandIt = 0, e = op.getNumArgs(); i != e; ++i) {
if (op.getArg(i).is<NamedTypeConstraint *>()) {
resolveDecorators(op.getArgDecorators(i), operandIt, EffectKind::Operand);
++operandIt;
}
}
/// Results.
for (unsigned i = 0, e = op.getNumResults(); i != e; ++i)
resolveDecorators(op.getResultDecorators(i), i, EffectKind::Result);
for (auto &it : interfaceEffects) {
auto effectsParam =
llvm::formatv("::mlir::SmallVectorImpl<::mlir::SideEffects::"
"EffectInstance<{0}>> &effects",
it.first())
.str();
// Generate the 'getEffects' method.
auto &getEffects = opClass.newMethod("void", "getEffects", effectsParam);
auto &body = getEffects.body();
// Add effect instances for each of the locations marked on the operation.
for (auto &location : it.second) {
if (location.kind != EffectKind::Static) {
body << " for (::mlir::Value value : getODS"
<< (location.kind == EffectKind::Operand ? "Operands" : "Results")
<< "(" << location.index << "))\n ";
}
body << " effects.emplace_back(" << location.effect.getName()
<< "::get()";
// If the effect isn't static, it has a specific value attached to it.
if (location.kind != EffectKind::Static)
body << ", value";
body << ", " << location.effect.getResource() << "::get());\n";
}
}
}
void OpEmitter::genTypeInterfaceMethods() {
if (!op.allResultTypesKnown())
return;
auto &method = opClass.newMethod(
"::mlir::LogicalResult", "inferReturnTypes",
"::mlir::MLIRContext* context, "
"::llvm::Optional<::mlir::Location> location, "
"::mlir::ValueRange operands, ::mlir::DictionaryAttr attributes, "
"::mlir::RegionRange regions, "
"::llvm::SmallVectorImpl<::mlir::Type>& inferredReturnTypes",
OpMethod::MP_Static,
/*declOnly=*/false);
auto &os = method.body();
os << " inferredReturnTypes.resize(" << op.getNumResults() << ");\n";
FmtContext fctx;
fctx.withBuilder("odsBuilder");
os << " ::mlir::Builder odsBuilder(context);\n";
auto emitType =
[&](const tblgen::Operator::ArgOrType &type) -> OpMethodBody & {
if (type.isArg()) {
auto argIndex = type.getArg();
assert(!op.getArg(argIndex).is<NamedAttribute *>());
auto arg = op.getArgToOperandOrAttribute(argIndex);
if (arg.kind() == Operator::OperandOrAttribute::Kind::Operand)
return os << "operands[" << arg.operandOrAttributeIndex()
<< "].getType()";
return os << "attributes[" << arg.operandOrAttributeIndex()
<< "].getType()";
} else {
return os << tgfmt(*type.getType().getBuilderCall(), &fctx);
}
};
for (int i = 0, e = op.getNumResults(); i != e; ++i) {
os << " inferredReturnTypes[" << i << "] = ";
auto types = op.getSameTypeAsResult(i);
emitType(types[0]) << ";\n";
if (types.size() == 1)
continue;
// TODO: We could verify equality here, but skipping that for verification.
}
os << " return success();";
}
void OpEmitter::genParser() {
if (!hasStringAttribute(def, "parser") ||
hasStringAttribute(def, "assemblyFormat"))
return;
auto &method = opClass.newMethod(
"::mlir::ParseResult", "parse",
"::mlir::OpAsmParser &parser, ::mlir::OperationState &result",
OpMethod::MP_Static);
FmtContext fctx;
fctx.addSubst("cppClass", opClass.getClassName());
auto parser = def.getValueAsString("parser").ltrim().rtrim(" \t\v\f\r");
method.body() << " " << tgfmt(parser, &fctx);
}
void OpEmitter::genPrinter() {
if (hasStringAttribute(def, "assemblyFormat"))
return;
auto valueInit = def.getValueInit("printer");
CodeInit *codeInit = dyn_cast<CodeInit>(valueInit);
if (!codeInit)
return;
auto &method = opClass.newMethod("void", "print", "::mlir::OpAsmPrinter &p");
FmtContext fctx;
fctx.addSubst("cppClass", opClass.getClassName());
auto printer = codeInit->getValue().ltrim().rtrim(" \t\v\f\r");
method.body() << " " << tgfmt(printer, &fctx);
}
void OpEmitter::genVerifier() {
auto &method =
opClass.newMethod("::mlir::LogicalResult", "verify", /*params=*/"");
auto &body = method.body();
body << " if (failed(" << op.getAdaptorName()
<< "(*this).verify(this->getLoc()))) "
<< "return failure();\n";
auto *valueInit = def.getValueInit("verifier");
CodeInit *codeInit = dyn_cast<CodeInit>(valueInit);
bool hasCustomVerify = codeInit && !codeInit->getValue().empty();
populateSubstitutions(op, "this->getAttr", "this->getODSOperands",
"this->getODSResults", verifyCtx);
genAttributeVerifier(op, "this->getAttr", "emitOpError(",
/*emitVerificationRequiringOp=*/true, verifyCtx, body);
genOperandResultVerifier(body, op.getOperands(), "operand");
genOperandResultVerifier(body, op.getResults(), "result");
for (auto &trait : op.getTraits()) {
if (auto *t = dyn_cast<tblgen::PredOpTrait>(&trait)) {
body << tgfmt(" if (!($0))\n "
"return emitOpError(\"failed to verify that $1\");\n",
&verifyCtx, tgfmt(t->getPredTemplate(), &verifyCtx),
t->getDescription());
}
}
genRegionVerifier(body);
genSuccessorVerifier(body);
if (hasCustomVerify) {
FmtContext fctx;
fctx.addSubst("cppClass", opClass.getClassName());
auto printer = codeInit->getValue().ltrim().rtrim(" \t\v\f\r");
body << " " << tgfmt(printer, &fctx);
} else {
body << " return ::mlir::success();\n";
}
}
void OpEmitter::genOperandResultVerifier(OpMethodBody &body,
Operator::value_range values,
StringRef valueKind) {
FmtContext fctx;
body << " {\n";
body << " unsigned index = 0; (void)index;\n";
for (auto staticValue : llvm::enumerate(values)) {
bool hasPredicate = staticValue.value().hasPredicate();
bool isOptional = staticValue.value().isOptional();
if (!hasPredicate && !isOptional)
continue;
body << formatv(" auto valueGroup{2} = getODS{0}{1}s({2});\n",
// Capitalize the first letter to match the function name
valueKind.substr(0, 1).upper(), valueKind.substr(1),
staticValue.index());
// If the constraint is optional check that the value group has at most 1
// value.
if (isOptional) {
body << formatv(" if (valueGroup{0}.size() > 1)\n"
" return emitOpError(\"{1} group starting at #\") "
"<< index << \" requires 0 or 1 element, but found \" << "
"valueGroup{0}.size();\n",
staticValue.index(), valueKind);
}
// Otherwise, if there is no predicate there is nothing left to do.
if (!hasPredicate)
continue;
// Emit a loop to check all the dynamic values in the pack.
body << " for (::mlir::Value v : valueGroup" << staticValue.index()
<< ") {\n";
auto constraint = staticValue.value().constraint;
body << " (void)v;\n"
<< " if (!("
<< tgfmt(constraint.getConditionTemplate(),
&fctx.withSelf("v.getType()"))
<< ")) {\n"
<< formatv(" return emitOpError(\"{0} #\") << index "
"<< \" must be {1}, but got \" << v.getType();\n",
valueKind, constraint.getDescription())
<< " }\n" // if
<< " ++index;\n"
<< " }\n"; // for
}
body << " }\n";
}
void OpEmitter::genRegionVerifier(OpMethodBody &body) {
// If we have no regions, there is nothing more to do.
unsigned numRegions = op.getNumRegions();
if (numRegions == 0)
return;
body << "{\n";
body << " unsigned index = 0; (void)index;\n";
for (unsigned i = 0; i < numRegions; ++i) {
const auto &region = op.getRegion(i);
if (region.constraint.getPredicate().isNull())
continue;
body << " for (::mlir::Region &region : ";
body << formatv(region.isVariadic()
? "{0}()"
: "::mlir::MutableArrayRef<::mlir::Region>(this->"
"getOperation()->getRegion({1}))",
region.name, i);
body << ") {\n";
auto constraint = tgfmt(region.constraint.getConditionTemplate(),
&verifyCtx.withSelf("region"))
.str();
body << formatv(" (void)region;\n"
" if (!({0})) {\n "
"return emitOpError(\"region #\") << index << \" {1}"
"failed to "
"verify constraint: {2}\";\n }\n",
constraint,
region.name.empty() ? "" : "('" + region.name + "') ",
region.constraint.getDescription())
<< " ++index;\n"
<< " }\n";
}
body << " }\n";
}
void OpEmitter::genSuccessorVerifier(OpMethodBody &body) {
// If we have no successors, there is nothing more to do.
unsigned numSuccessors = op.getNumSuccessors();
if (numSuccessors == 0)
return;
body << "{\n";
body << " unsigned index = 0; (void)index;\n";
for (unsigned i = 0; i < numSuccessors; ++i) {
const auto &successor = op.getSuccessor(i);
if (successor.constraint.getPredicate().isNull())
continue;
body << " for (::mlir::Block *successor : ";
body << formatv(successor.isVariadic()
? "{0}()"
: "::llvm::ArrayRef<::mlir::Block *>({0}())",
successor.name);
body << ") {\n";
auto constraint = tgfmt(successor.constraint.getConditionTemplate(),
&verifyCtx.withSelf("successor"))
.str();
body << formatv(" (void)successor;\n"
" if (!({0})) {\n "
"return emitOpError(\"successor #\") << index << \"('{1}') "
"failed to "
"verify constraint: {2}\";\n }\n",
constraint, successor.name,
successor.constraint.getDescription())
<< " ++index;\n"
<< " }\n";
}
body << " }\n";
}
/// Add a size count trait to the given operation class.
static void addSizeCountTrait(OpClass &opClass, StringRef traitKind,
int numTotal, int numVariadic) {
if (numVariadic != 0) {
if (numTotal == numVariadic)
opClass.addTrait("OpTrait::Variadic" + traitKind + "s");
else
opClass.addTrait("OpTrait::AtLeastN" + traitKind + "s<" +
Twine(numTotal - numVariadic) + ">::Impl");
return;
}
switch (numTotal) {
case 0:
opClass.addTrait("OpTrait::Zero" + traitKind);
break;
case 1:
opClass.addTrait("OpTrait::One" + traitKind);
break;
default:
opClass.addTrait("OpTrait::N" + traitKind + "s<" + Twine(numTotal) +
">::Impl");
break;
}
}
void OpEmitter::genTraits() {
// Add region size trait.
unsigned numRegions = op.getNumRegions();
unsigned numVariadicRegions = op.getNumVariadicRegions();
addSizeCountTrait(opClass, "Region", numRegions, numVariadicRegions);
// Add result size trait.
int numResults = op.getNumResults();
int numVariadicResults = op.getNumVariableLengthResults();
addSizeCountTrait(opClass, "Result", numResults, numVariadicResults);
// Add successor size trait.
unsigned numSuccessors = op.getNumSuccessors();
unsigned numVariadicSuccessors = op.getNumVariadicSuccessors();
addSizeCountTrait(opClass, "Successor", numSuccessors, numVariadicSuccessors);
// Add variadic size trait and normal op traits.
int numOperands = op.getNumOperands();
int numVariadicOperands = op.getNumVariableLengthOperands();
// Add operand size trait.
if (numVariadicOperands != 0) {
if (numOperands == numVariadicOperands)
opClass.addTrait("OpTrait::VariadicOperands");
else
opClass.addTrait("OpTrait::AtLeastNOperands<" +
Twine(numOperands - numVariadicOperands) + ">::Impl");
} else {
switch (numOperands) {
case 0:
opClass.addTrait("OpTrait::ZeroOperands");
break;
case 1:
opClass.addTrait("OpTrait::OneOperand");
break;
default:
opClass.addTrait("OpTrait::NOperands<" + Twine(numOperands) + ">::Impl");
break;
}
}
// Add the native and interface traits.
for (const auto &trait : op.getTraits()) {
if (auto opTrait = dyn_cast<tblgen::NativeOpTrait>(&trait))
opClass.addTrait(opTrait->getTrait());
else if (auto opTrait = dyn_cast<tblgen::InterfaceOpTrait>(&trait))
opClass.addTrait(opTrait->getTrait());
}
}
void OpEmitter::genOpNameGetter() {
auto &method = opClass.newMethod("::llvm::StringRef", "getOperationName",
/*params=*/"", OpMethod::MP_Static);
method.body() << " return \"" << op.getOperationName() << "\";\n";
}
void OpEmitter::genOpAsmInterface() {
// If the user only has one results or specifically added the Asm trait,
// then don't generate it for them. We specifically only handle multi result
// operations, because the name of a single result in the common case is not
// interesting(generally 'result'/'output'/etc.).
// TODO: We could also add a flag to allow operations to opt in to this
// generation, even if they only have a single operation.
int numResults = op.getNumResults();
if (numResults <= 1 || op.getTrait("::mlir::OpAsmOpInterface::Trait"))
return;
SmallVector<StringRef, 4> resultNames(numResults);
for (int i = 0; i != numResults; ++i)
resultNames[i] = op.getResultName(i);
// Don't add the trait if none of the results have a valid name.
if (llvm::all_of(resultNames, [](StringRef name) { return name.empty(); }))
return;
opClass.addTrait("::mlir::OpAsmOpInterface::Trait");
// Generate the right accessor for the number of results.
auto &method = opClass.newMethod("void", "getAsmResultNames",
"OpAsmSetValueNameFn setNameFn");
auto &body = method.body();
for (int i = 0; i != numResults; ++i) {
body << " auto resultGroup" << i << " = getODSResults(" << i << ");\n"
<< " if (!llvm::empty(resultGroup" << i << "))\n"
<< " setNameFn(*resultGroup" << i << ".begin(), \""
<< resultNames[i] << "\");\n";
}
}
//===----------------------------------------------------------------------===//
// OpOperandAdaptor emitter
//===----------------------------------------------------------------------===//
namespace {
// Helper class to emit Op operand adaptors to an output stream. Operand
// adaptors are wrappers around ArrayRef<Value> that provide named operand
// getters identical to those defined in the Op.
class OpOperandAdaptorEmitter {
public:
static void emitDecl(const Operator &op, raw_ostream &os);
static void emitDef(const Operator &op, raw_ostream &os);
private:
explicit OpOperandAdaptorEmitter(const Operator &op);
// Add verification function. This generates a verify method for the adaptor
// which verifies all the op-independent attribute constraints.
void addVerification();
const Operator &op;
Class adaptor;
};
} // end namespace
OpOperandAdaptorEmitter::OpOperandAdaptorEmitter(const Operator &op)
: op(op), adaptor(op.getAdaptorName()) {
adaptor.newField("::mlir::ValueRange", "odsOperands");
adaptor.newField("::mlir::DictionaryAttr", "odsAttrs");
const auto *attrSizedOperands =
op.getTrait("OpTrait::AttrSizedOperandSegments");
{
auto &constructor = adaptor.newConstructor(
attrSizedOperands
? "::mlir::ValueRange values, ::mlir::DictionaryAttr attrs"
: "::mlir::ValueRange values, ::mlir::DictionaryAttr attrs = "
"nullptr");
constructor.addMemberInitializer("odsOperands", "values");
constructor.addMemberInitializer("odsAttrs", "attrs");
}
{
auto &constructor = adaptor.newConstructor(
llvm::formatv("{0}& op", op.getCppClassName()).str());
constructor.addMemberInitializer("odsOperands",
"op.getOperation()->getOperands()");
constructor.addMemberInitializer("odsAttrs",
"op.getOperation()->getAttrDictionary()");
}
std::string sizeAttrInit =
formatv(adapterSegmentSizeAttrInitCode, "operand_segment_sizes");
generateNamedOperandGetters(op, adaptor, sizeAttrInit,
/*rangeType=*/"::mlir::ValueRange",
/*rangeBeginCall=*/"odsOperands.begin()",
/*rangeSizeCall=*/"odsOperands.size()",
/*getOperandCallPattern=*/"odsOperands[{0}]");
FmtContext fctx;
fctx.withBuilder("::mlir::Builder(odsAttrs.getContext())");
auto emitAttr = [&](StringRef name, Attribute attr) {
auto &body = adaptor.newMethod(attr.getStorageType(), name).body();
body << " assert(odsAttrs && \"no attributes when constructing adapter\");"
<< "\n " << attr.getStorageType() << " attr = "
<< "odsAttrs.get(\"" << name << "\").";
if (attr.hasDefaultValue() || attr.isOptional())
body << "dyn_cast_or_null<";
else
body << "cast<";
body << attr.getStorageType() << ">();\n";
if (attr.hasDefaultValue()) {
// Use the default value if attribute is not set.
// TODO: this is inefficient, we are recreating the attribute for every
// call. This should be set instead.
std::string defaultValue = std::string(
tgfmt(attr.getConstBuilderTemplate(), &fctx, attr.getDefaultValue()));
body << " if (!attr)\n attr = " << defaultValue << ";\n";
}
body << " return attr;\n";
};
for (auto &namedAttr : op.getAttributes()) {
const auto &name = namedAttr.name;
const auto &attr = namedAttr.attr;
if (!attr.isDerivedAttr())
emitAttr(name, attr);
}
// Add verification function.
addVerification();
}
void OpOperandAdaptorEmitter::addVerification() {
auto &method = adaptor.newMethod("::mlir::LogicalResult", "verify",
/*params=*/"::mlir::Location loc");
auto &body = method.body();
const char *checkAttrSizedValueSegmentsCode = R"(
{
auto sizeAttr = odsAttrs.get("{0}").cast<::mlir::DenseIntElementsAttr>();
auto numElements = sizeAttr.getType().cast<::mlir::ShapedType>().getNumElements();
if (numElements != {1})
return emitError(loc, "'{0}' attribute for specifying {2} segments "
"must have {1} elements");
}
)";
// Verify a few traits first so that we can use
// getODSOperands()/getODSResults() in the rest of the verifier.
for (auto &trait : op.getTraits()) {
if (auto *t = dyn_cast<tblgen::NativeOpTrait>(&trait)) {
if (t->getTrait() == "OpTrait::AttrSizedOperandSegments") {
body << formatv(checkAttrSizedValueSegmentsCode,
"operand_segment_sizes", op.getNumOperands(),
"operand");
} else if (t->getTrait() == "OpTrait::AttrSizedResultSegments") {
body << formatv(checkAttrSizedValueSegmentsCode, "result_segment_sizes",
op.getNumResults(), "result");
}
}
}
FmtContext verifyCtx;
populateSubstitutions(op, "odsAttrs.get", "getODSOperands",
"<no results should be genarated>", verifyCtx);
genAttributeVerifier(op, "odsAttrs.get",
Twine("emitError(loc, \"'") + op.getOperationName() +
"' op \"",
/*emitVerificationRequiringOp*/ false, verifyCtx, body);
body << " return success();";
}
void OpOperandAdaptorEmitter::emitDecl(const Operator &op, raw_ostream &os) {
OpOperandAdaptorEmitter(op).adaptor.writeDeclTo(os);
}
void OpOperandAdaptorEmitter::emitDef(const Operator &op, raw_ostream &os) {
OpOperandAdaptorEmitter(op).adaptor.writeDefTo(os);
}
// Emits the opcode enum and op classes.
static void emitOpClasses(const std::vector<Record *> &defs, raw_ostream &os,
bool emitDecl) {
// First emit forward declaration for each class, this allows them to refer
// to each others in traits for example.
if (emitDecl) {
os << "#if defined(GET_OP_CLASSES) || defined(GET_OP_FWD_DEFINES)\n";
os << "#undef GET_OP_FWD_DEFINES\n";
for (auto *def : defs) {
Operator op(*def);
os << "class " << op.getCppClassName() << ";\n";
}
os << "#endif\n\n";
}
IfDefScope scope("GET_OP_CLASSES", os);
for (auto *def : defs) {
Operator op(*def);
if (emitDecl) {
os << formatv(opCommentHeader, op.getQualCppClassName(), "declarations");
OpOperandAdaptorEmitter::emitDecl(op, os);
OpEmitter::emitDecl(op, os);
} else {
os << formatv(opCommentHeader, op.getQualCppClassName(), "definitions");
OpOperandAdaptorEmitter::emitDef(op, os);
OpEmitter::emitDef(op, os);
}
}
}
// Emits a comma-separated list of the ops.
static void emitOpList(const std::vector<Record *> &defs, raw_ostream &os) {
IfDefScope scope("GET_OP_LIST", os);
interleave(
// TODO: We are constructing the Operator wrapper instance just for
// getting it's qualified class name here. Reduce the overhead by having a
// lightweight version of Operator class just for that purpose.
defs, [&os](Record *def) { os << Operator(def).getQualCppClassName(); },
[&os]() { os << ",\n"; });
}
static std::string getOperationName(const Record &def) {
auto prefix = def.getValueAsDef("opDialect")->getValueAsString("name");
auto opName = def.getValueAsString("opName");
if (prefix.empty())
return std::string(opName);
return std::string(llvm::formatv("{0}.{1}", prefix, opName));
}
static std::vector<Record *>
getAllDerivedDefinitions(const RecordKeeper &recordKeeper,
StringRef className) {
Record *classDef = recordKeeper.getClass(className);
if (!classDef)
PrintFatalError("ERROR: Couldn't find the `" + className + "' class!\n");
llvm::Regex includeRegex(opIncFilter), excludeRegex(opExcFilter);
std::vector<Record *> defs;
for (const auto &def : recordKeeper.getDefs()) {
if (!def.second->isSubClassOf(classDef))
continue;
// Include if no include filter or include filter matches.
if (!opIncFilter.empty() &&
!includeRegex.match(getOperationName(*def.second)))
continue;
// Unless there is an exclude filter and it matches.
if (!opExcFilter.empty() &&
excludeRegex.match(getOperationName(*def.second)))
continue;
defs.push_back(def.second.get());
}
return defs;
}
static bool emitOpDecls(const RecordKeeper &recordKeeper, raw_ostream &os) {
emitSourceFileHeader("Op Declarations", os);
const auto &defs = getAllDerivedDefinitions(recordKeeper, "Op");
emitOpClasses(defs, os, /*emitDecl=*/true);
return false;
}
static bool emitOpDefs(const RecordKeeper &recordKeeper, raw_ostream &os) {
emitSourceFileHeader("Op Definitions", os);
const auto &defs = getAllDerivedDefinitions(recordKeeper, "Op");
emitOpList(defs, os);
emitOpClasses(defs, os, /*emitDecl=*/false);
return false;
}
static mlir::GenRegistration
genOpDecls("gen-op-decls", "Generate op declarations",
[](const RecordKeeper &records, raw_ostream &os) {
return emitOpDecls(records, os);
});
static mlir::GenRegistration genOpDefs("gen-op-defs", "Generate op definitions",
[](const RecordKeeper &records,
raw_ostream &os) {
return emitOpDefs(records, os);
});