0bb1af478a
Fixes #139023. This PR essentially removes unused global variables: - Restores the `GlobalDCE` Legacy pass and adds it to the DirectX backend after the finalize linkage pass - Converts external global variables with no usage to internal linkage in the finalize linkage pass - (so they can be removed by `GlobalDCE`) - Makes the `dxil-finalize-linkage` pass usable using the new pass manager flag syntax - Adds tests to `finalize_linkage.ll` that make sure unused global variables are removed - Adds a use for variable `@CBV` in `opaque-value_as_metadata.ll` so it isn't removed - Changes the `scalar-data.ll` run command to avoid removing its global variables --------- Co-authored-by: Farzon Lotfi <farzonlotfi@microsoft.com>
48 lines
2.0 KiB
Modula-2
48 lines
2.0 KiB
Modula-2
//===- DirectXPassRegistry.def - Registry of DirectX passes -----*- 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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//
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// This file is used as the registry of passes that are part of the
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// DirectX backend.
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//
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//===----------------------------------------------------------------------===//
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// NOTE: NO INCLUDE GUARD DESIRED!
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#ifndef MODULE_ANALYSIS
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#define MODULE_ANALYSIS(NAME, CREATE_PASS)
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#endif
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MODULE_ANALYSIS("dx-shader-flags", dxil::ShaderFlagsAnalysis())
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MODULE_ANALYSIS("dxil-root-signature-analysis", dxil::RootSignatureAnalysis())
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#undef MODULE_ANALYSIS
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#ifndef MODULE_PASS
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#define MODULE_PASS(NAME, CREATE_PASS)
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#endif
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MODULE_PASS("dxil-cbuffer-access", DXILCBufferAccess())
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MODULE_PASS("dxil-finalize-linkage", DXILFinalizeLinkage())
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MODULE_PASS("dxil-data-scalarization", DXILDataScalarization())
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MODULE_PASS("dxil-flatten-arrays", DXILFlattenArrays())
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MODULE_PASS("dxil-intrinsic-expansion", DXILIntrinsicExpansion())
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MODULE_PASS("dxil-op-lower", DXILOpLowering())
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MODULE_PASS("dxil-pretty-printer", DXILPrettyPrinterPass(dbgs()))
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MODULE_PASS("dxil-translate-metadata", DXILTranslateMetadata())
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MODULE_PASS("dxil-resource-implicit-binding", DXILResourceImplicitBinding())
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MODULE_PASS("dxil-post-optimization-validation", DXILPostOptimizationValidation())
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// TODO: rename to print<foo> after NPM switch
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MODULE_PASS("print-dx-shader-flags", dxil::ShaderFlagsAnalysisPrinter(dbgs()))
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MODULE_PASS("print<dxil-root-signature>", dxil::RootSignatureAnalysisPrinter(dbgs()))
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#undef MODULE_PASS
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#ifndef FUNCTION_PASS
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#define FUNCTION_PASS(NAME, CREATE_PASS)
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#endif
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FUNCTION_PASS("dxil-forward-handle-accesses", DXILForwardHandleAccesses())
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FUNCTION_PASS("dxil-resource-access", DXILResourceAccess())
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FUNCTION_PASS("dxil-legalize", DXILLegalizePass())
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#undef FUNCTION_PASS
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