352215c6eb
In tandem with #146800, this PR fixes #145370 This PR simplifies the logic for collapsing GEP chains and replacing GEPs to multidimensional arrays with GEPs to flattened arrays. This implementation avoids unnecessary recursion and more robustly computes the index to the flattened array by using the GEPOperator's collectOffset function, which has the side effect of allowing "i8 GEPs" and other types of GEPs to be handled naturally in the flattening / collapsing of GEP chains. Furthermore, a handful of LLVM DirectX CodeGen tests have been edited to fix incorrect GEP offsets, mismatched types (e.g., loading i32s from a an array of floats), and typos.
26 lines
2.3 KiB
LLVM
26 lines
2.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes='dxil-data-scalarization,dxil-flatten-arrays,function(scalarizer<load-store>),dxil-op-lower' -mtriple=dxil-pc-shadermodel6.3-library %s | FileCheck %s
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@StaticArr = internal constant [8 x <3 x float>] [<3 x float> zeroinitializer, <3 x float> splat (float 5.000000e-01), <3 x float> <float 1.000000e+00, float 5.000000e-01, float 5.000000e-01>, <3 x float> <float 5.000000e-01, float 1.000000e+00, float 5.000000e-01>, <3 x float> <float 5.000000e-01, float 5.000000e-01, float 1.000000e+00>, <3 x float> <float 5.000000e-01, float 1.000000e+00, float 1.000000e+00>, <3 x float> <float 1.000000e+00, float 5.000000e-01, float 1.000000e+00>, <3 x float> <float 1.000000e+00, float 1.000000e+00, float 5.000000e-01>], align 16
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; Function Attrs: alwaysinline convergent mustprogress norecurse nounwind
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define internal void @main() #1 {
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; CHECK-LABEL: define internal void @main() {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[DOTI0:%.*]] = load float, ptr getelementptr inbounds ([24 x float], ptr @StaticArr.scalarized.1dim, i32 0, i32 3), align 16
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; CHECK-NEXT: [[DOTI11:%.*]] = load float, ptr getelementptr (float, ptr getelementptr inbounds ([24 x float], ptr @StaticArr.scalarized.1dim, i32 0, i32 3), i32 1), align 4
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; CHECK-NEXT: [[DOTI22:%.*]] = load float, ptr getelementptr (float, ptr getelementptr inbounds ([24 x float], ptr @StaticArr.scalarized.1dim, i32 0, i32 3), i32 2), align 8
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; CHECK-NEXT: [[DOTI03:%.*]] = load float, ptr getelementptr inbounds ([24 x float], ptr @StaticArr.scalarized.1dim, i32 0, i32 6), align 16
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; CHECK-NEXT: [[DOTI15:%.*]] = load float, ptr getelementptr (float, ptr getelementptr inbounds ([24 x float], ptr @StaticArr.scalarized.1dim, i32 0, i32 6), i32 1), align 4
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; CHECK-NEXT: [[DOTI27:%.*]] = load float, ptr getelementptr (float, ptr getelementptr inbounds ([24 x float], ptr @StaticArr.scalarized.1dim, i32 0, i32 6), i32 2), align 8
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; CHECK-NEXT: ret void
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;
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entry:
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%arrayidx = getelementptr inbounds [8 x <3 x float>], ptr @StaticArr, i32 0, i32 1
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%2 = load <3 x float>, ptr %arrayidx, align 16
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%arrayidx2 = getelementptr inbounds [8 x <3 x float>], ptr @StaticArr, i32 0, i32 2
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%3 = load <3 x float>, ptr %arrayidx2, align 16
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ret void
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}
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