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>
16 lines
815 B
LLVM
16 lines
815 B
LLVM
; RUN: opt -S -passes='dxil-data-scalarization,dxil-flatten-arrays' -mtriple=dxil-unknown-shadermodel6.5-compute %s | FileCheck %s
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; Make sure we don't touch arrays without vectors and that can recurse and flatten multiple-dimension arrays of vectors
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@staticArray = internal global [4 x i32] [i32 1, i32 2, i32 3, i32 4], align 4
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@"groushared3dArrayofVectors" = local_unnamed_addr addrspace(3) global [3 x [3 x [3 x <4 x i32>]]] zeroinitializer, align 16
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; CHECK @staticArray
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; CHECK-NOT: @staticArray.scalarized
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; CHECK-NOT: @staticArray.scalarized.1dim
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; CHECK-NOT: @staticArray.1dim
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; CHECK: @groushared3dArrayofVectors.scalarized.1dim = local_unnamed_addr addrspace(3) global [108 x i32] zeroinitializer, align 16
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; CHECK-NOT: @groushared3dArrayofVectors.scalarized
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; CHECK-NOT: @groushared3dArrayofVectors
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