cab44c515c
Because the buffer descriptor structure (the V#) has no backwards-compatibility guarentees, and since said guarantees have been violated in practice (see https://github.com/llvm/llvm-project/issues/56323 ), and since the `targetIsRDNA` attribute isn't something that higher-level clients can set in general, make the lowering of the amdgpu dialect to rocdl take a --chipset option. Note that this option is a string because adding a parser for the Chipset struct to llvm::cl wasn't working out. Reviewed By: herhut Differential Revision: https://reviews.llvm.org/D129228
29 lines
938 B
C++
29 lines
938 B
C++
//===- Chipset.cpp - AMDGPU Chipset version struct parsing -----------===//
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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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#include "mlir/Conversion/AMDGPUToROCDL/Chipset.h"
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#include "mlir/Support/LLVM.h"
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#include "llvm/ADT/StringRef.h"
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using namespace mlir;
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using namespace mlir::amdgpu;
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FailureOr<Chipset> Chipset::parse(StringRef name) {
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if (!name.startswith("gfx"))
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return failure();
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unsigned major = 0;
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unsigned minor = 0;
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StringRef majorRef = name.drop_front(3).drop_back(2);
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StringRef minorRef = name.take_back(2);
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if (majorRef.getAsInteger(10, major))
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return failure();
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if (minorRef.getAsInteger(16, minor))
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return failure();
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return Chipset(major, minor);
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}
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