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9cd47a26d5
Make sure they can only be attached to LLVM functions as a result of converting GPU functions to the LLVM Dialect.
65 lines
2.6 KiB
C++
65 lines
2.6 KiB
C++
//===- NVVMToLLVMIRTranslation.cpp - Translate NVVM to LLVM IR ------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a translation between the MLIR NVVM dialect and
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// LLVM IR.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Target/LLVMIR/Dialect/NVVM/NVVMToLLVMIRTranslation.h"
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#include "mlir/Dialect/LLVMIR/NVVMDialect.h"
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#include "mlir/IR/Operation.h"
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#include "mlir/Target/LLVMIR/ModuleTranslation.h"
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#include "llvm/IR/IRBuilder.h"
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#include "llvm/IR/IntrinsicsNVPTX.h"
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using namespace mlir;
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using namespace mlir::LLVM;
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using mlir::LLVM::detail::createIntrinsicCall;
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static llvm::Intrinsic::ID getShflBflyIntrinsicId(llvm::Type *resultType,
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bool withPredicate) {
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if (withPredicate) {
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resultType = cast<llvm::StructType>(resultType)->getElementType(0);
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return resultType->isFloatTy() ? llvm::Intrinsic::nvvm_shfl_sync_bfly_f32p
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: llvm::Intrinsic::nvvm_shfl_sync_bfly_i32p;
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}
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return resultType->isFloatTy() ? llvm::Intrinsic::nvvm_shfl_sync_bfly_f32
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: llvm::Intrinsic::nvvm_shfl_sync_bfly_i32;
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}
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LogicalResult mlir::NVVMDialectLLVMIRTranslationInterface::convertOperation(
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Operation *op, llvm::IRBuilderBase &builder,
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LLVM::ModuleTranslation &moduleTranslation) const {
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Operation &opInst = *op;
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#include "mlir/Dialect/LLVMIR/NVVMConversions.inc"
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return failure();
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}
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LogicalResult mlir::NVVMDialectLLVMIRTranslationInterface::amendOperation(
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Operation *op, NamedAttribute attribute,
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LLVM::ModuleTranslation &moduleTranslation) const {
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if (attribute.first == NVVM::NVVMDialect::getKernelFuncAttrName()) {
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auto func = cast<LLVM::LLVMFuncOp>(op);
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llvm::LLVMContext &llvmContext = moduleTranslation.getLLVMContext();
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llvm::Function *llvmFunc = moduleTranslation.lookupFunction(func.getName());
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llvm::Metadata *llvmMetadata[] = {
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llvm::ValueAsMetadata::get(llvmFunc),
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llvm::MDString::get(llvmContext, "kernel"),
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llvm::ValueAsMetadata::get(
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llvm::ConstantInt::get(llvm::Type::getInt32Ty(llvmContext), 1))};
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llvm::MDNode *llvmMetadataNode =
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llvm::MDNode::get(llvmContext, llvmMetadata);
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moduleTranslation.getOrInsertNamedModuleMetadata("nvvm.annotations")
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->addOperand(llvmMetadataNode);
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}
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return success();
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}
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