23aa5a7446
The last remaining operations in the standard dialect all revolve around FuncOp/function related constructs. This patch simply handles the initial renaming (which by itself is already huge), but there are a large number of cleanups unlocked/necessary afterwards: * Removing a bunch of unnecessary dependencies on Func * Cleaning up the From/ToStandard conversion passes * Preparing for the move of FuncOp to the Func dialect See the discussion at https://discourse.llvm.org/t/standard-dialect-the-final-chapter/6061 Differential Revision: https://reviews.llvm.org/D120624
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
//===- IndexIntrinsicsOpLowering.h - GPU IndexOps Lowering class *- C++ -*-===//
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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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#ifndef MLIR_CONVERSION_GPUCOMMON_INDEXINTRINSICSOPLOWERING_H_
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#define MLIR_CONVERSION_GPUCOMMON_INDEXINTRINSICSOPLOWERING_H_
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#include "mlir/Conversion/LLVMCommon/Pattern.h"
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#include "mlir/Dialect/GPU/GPUDialect.h"
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#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
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#include "llvm/ADT/StringSwitch.h"
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namespace mlir {
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// Rewriting that replaces Op with XOp, YOp, or ZOp depending on the dimension
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// that Op operates on. Op is assumed to return an `index` value and
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// XOp, YOp and ZOp are assumed to return an `llvm.i32` value. Depending on
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// `indexBitwidth`, sign-extend or truncate the resulting value to match the
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// bitwidth expected by the consumers of the value.
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template <typename Op, typename XOp, typename YOp, typename ZOp>
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struct GPUIndexIntrinsicOpLowering : public ConvertOpToLLVMPattern<Op> {
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private:
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unsigned indexBitwidth;
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public:
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explicit GPUIndexIntrinsicOpLowering(LLVMTypeConverter &typeConverter)
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: ConvertOpToLLVMPattern<Op>(typeConverter),
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indexBitwidth(typeConverter.getIndexTypeBitwidth()) {}
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// Convert the kernel arguments to an LLVM type, preserve the rest.
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LogicalResult
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matchAndRewrite(Op op, typename Op::Adaptor adaptor,
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ConversionPatternRewriter &rewriter) const override {
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auto loc = op->getLoc();
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MLIRContext *context = rewriter.getContext();
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Value newOp;
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switch (op.dimension()) {
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case gpu::Dimension::x:
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newOp = rewriter.create<XOp>(loc, IntegerType::get(context, 32));
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break;
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case gpu::Dimension::y:
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newOp = rewriter.create<YOp>(loc, IntegerType::get(context, 32));
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break;
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case gpu::Dimension::z:
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newOp = rewriter.create<ZOp>(loc, IntegerType::get(context, 32));
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break;
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}
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if (indexBitwidth > 32) {
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newOp = rewriter.create<LLVM::SExtOp>(
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loc, IntegerType::get(context, indexBitwidth), newOp);
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} else if (indexBitwidth < 32) {
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newOp = rewriter.create<LLVM::TruncOp>(
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loc, IntegerType::get(context, indexBitwidth), newOp);
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}
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rewriter.replaceOp(op, {newOp});
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return success();
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}
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};
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} // namespace mlir
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#endif // MLIR_CONVERSION_GPUCOMMON_INDEXINTRINSICSOPLOWERING_H_
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