94 lines · cpp
1//===-- XeVMAttachTarget.cpp - Attach an XeVM target ----------------------===//2//3// This file is licensed under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file implements the `GpuXeVMAttachTarget` pass, attaching `#xevm.target`10// attributes to GPU modules.11//12//===----------------------------------------------------------------------===//13 14#include "mlir/Dialect/GPU/Transforms/Passes.h"15 16#include "mlir/Dialect/GPU/IR/GPUDialect.h"17#include "mlir/Dialect/LLVMIR/XeVMDialect.h"18#include "mlir/IR/Builders.h"19#include "mlir/Pass/Pass.h"20#include "mlir/Target/LLVM/XeVM/Target.h"21#include "llvm/Support/Regex.h"22 23namespace mlir {24#define GEN_PASS_DEF_GPUXEVMATTACHTARGET25#include "mlir/Dialect/GPU/Transforms/Passes.h.inc"26} // namespace mlir27 28using namespace mlir;29using namespace mlir::xevm;30 31namespace {32struct XeVMAttachTarget33 : public mlir::impl::GpuXeVMAttachTargetBase<XeVMAttachTarget> {34 using Base::Base;35 36 DictionaryAttr getFlags(OpBuilder &builder) const;37 38 void runOnOperation() override;39 40 void getDependentDialects(DialectRegistry ®istry) const override {41 registry.insert<xevm::XeVMDialect>();42 }43};44} // namespace45 46DictionaryAttr XeVMAttachTarget::getFlags(OpBuilder &builder) const {47 SmallVector<NamedAttribute, 3> flags;48 // Tokenize and set the optional command line options.49 if (!cmdOptions.empty()) {50 std::pair<llvm::BumpPtrAllocator, SmallVector<const char *>> options =51 gpu::TargetOptions::tokenizeCmdOptions(cmdOptions);52 if (!options.second.empty()) {53 llvm::SmallVector<mlir::Attribute> xevmOptionAttrs;54 for (const char *opt : options.second) {55 xevmOptionAttrs.emplace_back(56 mlir::StringAttr::get(builder.getContext(), StringRef(opt)));57 }58 flags.push_back(builder.getNamedAttr(59 "cmd-options",60 mlir::ArrayAttr::get(builder.getContext(), xevmOptionAttrs)));61 }62 }63 64 if (!flags.empty())65 return builder.getDictionaryAttr(flags);66 return nullptr;67}68 69void XeVMAttachTarget::runOnOperation() {70 OpBuilder builder(&getContext());71 ArrayRef<std::string> libs(linkLibs);72 SmallVector<StringRef> filesToLink(libs);73 auto target = builder.getAttr<xevm::XeVMTargetAttr>(74 optLevel, triple, chip, getFlags(builder),75 filesToLink.empty() ? nullptr : builder.getStrArrayAttr(filesToLink));76 llvm::Regex matcher(moduleMatcher);77 for (Region ®ion : getOperation()->getRegions())78 for (Block &block : region.getBlocks())79 for (auto module : block.getOps<gpu::GPUModuleOp>()) {80 // Check if the name of the module matches.81 if (!moduleMatcher.empty() && !matcher.match(module.getName()))82 continue;83 // Create the target array.84 SmallVector<Attribute> targets;85 if (std::optional<ArrayAttr> attrs = module.getTargets())86 targets.append(attrs->getValue().begin(), attrs->getValue().end());87 targets.push_back(target);88 // Remove any duplicate targets.89 targets.erase(llvm::unique(targets), targets.end());90 // Update the target attribute array.91 module.setTargetsAttr(builder.getArrayAttr(targets));92 }93}94