eb19b4eefc
This CL adds support for named custom instructions in declarative builders. To allow this, it introduces a templated `CustomInstruction` class. This CL also splits ValueHandle which can capture only the **value** in single-valued instructions from InstructionHandle which can capture any instruction but provide no typing and sugaring to extract the potential Value*. PiperOrigin-RevId: 237543222
123 lines
5.7 KiB
C++
123 lines
5.7 KiB
C++
//===- Intrinsics.cpp - MLIR Operations for Declarative Builders *- C++ -*-===//
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//
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// Copyright 2019 The MLIR Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// =============================================================================
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#include "mlir/EDSC/Intrinsics.h"
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#include "mlir/EDSC/Builders.h"
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#include "mlir/IR/AffineExpr.h"
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using namespace mlir;
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using namespace mlir::edsc;
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InstructionHandle mlir::edsc::intrinsics::BR(BlockHandle bh,
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ArrayRef<ValueHandle> operands) {
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assert(bh && "Expected already captured BlockHandle");
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for (auto &o : operands) {
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(void)o;
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assert(o && "Expected already captured ValueHandle");
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}
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SmallVector<Value *, 4> ops(operands.begin(), operands.end());
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return InstructionHandle::create<BranchOp>(bh.getBlock(), ops);
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}
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static void enforceEmptyCapturesMatchOperands(ArrayRef<ValueHandle *> captures,
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ArrayRef<ValueHandle> operands) {
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assert(captures.size() == operands.size() &&
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"Expected same number of captures as operands");
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for (auto it : llvm::zip(captures, operands)) {
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(void)it;
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assert(!std::get<0>(it)->hasValue() &&
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"Unexpected already captured ValueHandle");
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assert(std::get<1>(it) && "Expected already captured ValueHandle");
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assert(std::get<0>(it)->getType() == std::get<1>(it).getType() &&
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"Expected the same type for capture and operand");
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}
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}
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InstructionHandle mlir::edsc::intrinsics::BR(BlockHandle *bh,
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ArrayRef<ValueHandle *> captures,
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ArrayRef<ValueHandle> operands) {
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assert(!*bh && "Unexpected already captured BlockHandle");
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enforceEmptyCapturesMatchOperands(captures, operands);
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{ // Clone the scope explicitly to avoid modifying the insertion point in the
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// current scope which result in surprising usage.
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auto *currentB = ScopedContext::getBuilder();
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FuncBuilder b(currentB->getInsertionBlock(), currentB->getInsertionPoint());
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Location loc = ScopedContext::getLocation();
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ScopedContext scope(b, loc);
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BlockBuilder(bh, captures)({/* no body */});
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} // Release before adding the branch to the eagerly created block.
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SmallVector<Value *, 4> ops(operands.begin(), operands.end());
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return InstructionHandle::create<BranchOp>(bh->getBlock(), ops);
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}
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InstructionHandle
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mlir::edsc::intrinsics::COND_BR(ValueHandle cond, BlockHandle trueBranch,
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ArrayRef<ValueHandle> trueOperands,
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BlockHandle falseBranch,
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ArrayRef<ValueHandle> falseOperands) {
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SmallVector<Value *, 4> trueOps(trueOperands.begin(), trueOperands.end());
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SmallVector<Value *, 4> falseOps(falseOperands.begin(), falseOperands.end());
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return InstructionHandle::create<CondBranchOp>(
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cond, trueBranch.getBlock(), trueOps, falseBranch.getBlock(), falseOps);
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}
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InstructionHandle mlir::edsc::intrinsics::COND_BR(
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ValueHandle cond, BlockHandle *trueBranch,
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ArrayRef<ValueHandle *> trueCaptures, ArrayRef<ValueHandle> trueOperands,
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BlockHandle *falseBranch, ArrayRef<ValueHandle *> falseCaptures,
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ArrayRef<ValueHandle> falseOperands) {
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assert(!*trueBranch && "Unexpected already captured BlockHandle");
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assert(!*falseBranch && "Unexpected already captured BlockHandle");
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enforceEmptyCapturesMatchOperands(trueCaptures, trueOperands);
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enforceEmptyCapturesMatchOperands(falseCaptures, falseOperands);
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{ // Clone the scope explicitly.
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auto *currentB = ScopedContext::getBuilder();
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FuncBuilder b(currentB->getInsertionBlock(), currentB->getInsertionPoint());
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Location loc = ScopedContext::getLocation();
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ScopedContext scope(b, loc);
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BlockBuilder(trueBranch, trueCaptures)({/* no body */});
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BlockBuilder(falseBranch, falseCaptures)({/* no body */});
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} // Release before adding the branch to the eagerly created block.
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SmallVector<Value *, 4> trueOps(trueOperands.begin(), trueOperands.end());
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SmallVector<Value *, 4> falseOps(falseOperands.begin(), falseOperands.end());
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return InstructionHandle::create<CondBranchOp>(
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cond, trueBranch->getBlock(), trueOps, falseBranch->getBlock(), falseOps);
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}
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////////////////////////////////////////////////////////////////////////////////
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// TODO(ntv): Intrinsics below this line should be TableGen'd.
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////////////////////////////////////////////////////////////////////////////////
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ValueHandle
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mlir::edsc::intrinsics::LOAD(ValueHandle base,
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llvm::ArrayRef<ValueHandle> indices = {}) {
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SmallVector<Value *, 4> ops(indices.begin(), indices.end());
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return ValueHandle::create<LoadOp>(base.getValue(), ops);
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}
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InstructionHandle
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mlir::edsc::intrinsics::RETURN(ArrayRef<ValueHandle> operands) {
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SmallVector<Value *, 4> ops(operands.begin(), operands.end());
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return InstructionHandle::create<ReturnOp>(ops);
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}
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InstructionHandle
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mlir::edsc::intrinsics::STORE(ValueHandle value, ValueHandle base,
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llvm::ArrayRef<ValueHandle> indices = {}) {
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SmallVector<Value *, 4> ops(indices.begin(), indices.end());
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return InstructionHandle::create<StoreOp>(value.getValue(), base.getValue(),
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ops);
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}
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