98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
//===- SPIRVAttachTarget.cpp - Attach an SPIR-V target --------------------===//
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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 the `GPUSPIRVAttachTarget` pass, attaching
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// `#spirv.target_env` attributes to GPU modules.
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Dialect/GPU/Transforms/Passes.h"
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#include "mlir/Dialect/GPU/IR/GPUDialect.h"
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#include "mlir/Dialect/SPIRV/IR/SPIRVAttributes.h"
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#include "mlir/Dialect/SPIRV/IR/SPIRVDialect.h"
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#include "mlir/Dialect/SPIRV/IR/TargetAndABI.h"
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#include "mlir/IR/Builders.h"
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#include "mlir/Pass/Pass.h"
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#include "mlir/Target/SPIRV/Target.h"
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#include "llvm/Support/Regex.h"
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namespace mlir {
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#define GEN_PASS_DEF_GPUSPIRVATTACHTARGET
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#include "mlir/Dialect/GPU/Transforms/Passes.h.inc"
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} // namespace mlir
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using namespace mlir;
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using namespace mlir::spirv;
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namespace {
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struct SPIRVAttachTarget
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: public impl::GpuSPIRVAttachTargetBase<SPIRVAttachTarget> {
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using Base::Base;
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void runOnOperation() override;
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void getDependentDialects(DialectRegistry ®istry) const override {
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registry.insert<spirv::SPIRVDialect>();
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}
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};
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} // namespace
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void SPIRVAttachTarget::runOnOperation() {
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OpBuilder builder(&getContext());
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auto versionSymbol = symbolizeVersion(spirvVersion);
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if (!versionSymbol)
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return signalPassFailure();
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auto apiSymbol = symbolizeClientAPI(clientApi);
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if (!apiSymbol)
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return signalPassFailure();
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auto vendorSymbol = symbolizeVendor(deviceVendor);
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if (!vendorSymbol)
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return signalPassFailure();
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auto deviceTypeSymbol = symbolizeDeviceType(deviceType);
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if (!deviceTypeSymbol)
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return signalPassFailure();
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// Set the default device ID if none was given
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if (!deviceId.hasValue())
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deviceId = mlir::spirv::TargetEnvAttr::kUnknownDeviceID;
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Version version = versionSymbol.value();
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SmallVector<Capability, 4> capabilities;
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SmallVector<Extension, 8> extensions;
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for (const auto &cap : spirvCapabilities) {
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auto capSymbol = symbolizeCapability(cap);
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if (capSymbol)
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capabilities.push_back(capSymbol.value());
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}
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ArrayRef<Capability> caps(capabilities);
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for (const auto &ext : spirvExtensions) {
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auto extSymbol = symbolizeExtension(ext);
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if (extSymbol)
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extensions.push_back(extSymbol.value());
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}
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ArrayRef<Extension> exts(extensions);
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VerCapExtAttr vce = VerCapExtAttr::get(version, caps, exts, &getContext());
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auto target = TargetEnvAttr::get(vce, getDefaultResourceLimits(&getContext()),
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apiSymbol.value(), vendorSymbol.value(),
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deviceTypeSymbol.value(), deviceId);
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llvm::Regex matcher(moduleMatcher);
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getOperation()->walk([&](gpu::GPUModuleOp gpuModule) {
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// Check if the name of the module matches.
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if (!moduleMatcher.empty() && !matcher.match(gpuModule.getName()))
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return;
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// Create the target array.
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SmallVector<Attribute> targets;
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if (std::optional<ArrayAttr> attrs = gpuModule.getTargets())
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targets.append(attrs->getValue().begin(), attrs->getValue().end());
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targets.push_back(target);
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// Remove any duplicate targets.
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targets.erase(std::unique(targets.begin(), targets.end()), targets.end());
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// Update the target attribute array.
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gpuModule.setTargetsAttr(builder.getArrayAttr(targets));
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});
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}
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