eddeb36cf1
- Add the boilerplate to support instcombine in SPIRV - instcombine length(X-Y) to distance(X,Y) - switch HLSL's distance intrinsic to not special case for SPIRV. - fixes #122766 - This RFC we were requested to add in the infra for pattern matching: https://discourse.llvm.org/t/rfc-add-targetbuiltins-for-spirv-to-support-hlsl/83329/13
23 lines
786 B
TableGen
23 lines
786 B
TableGen
//=- SPIRVCombine.td - Define SPIRV Combine Rules -------------*-tablegen -*-=//
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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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include "llvm/Target/GlobalISel/Combine.td"
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def vector_length_sub_to_distance_lowering : GICombineRule <
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(defs root:$root),
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(match (wip_match_opcode G_INTRINSIC):$root,
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[{ return matchLengthToDistance(*${root}, MRI); }]),
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(apply [{ applySPIRVDistance(*${root}, MRI, B); }])
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>;
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def SPIRVPreLegalizerCombiner
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: GICombiner<"SPIRVPreLegalizerCombinerImpl",
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[vector_length_sub_to_distance_lowering]> {
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let CombineAllMethodName = "tryCombineAllImpl";
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}
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