derek.holloway
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46 lines
1.5 KiB
LLVM
46 lines
1.5 KiB
LLVM
; RUN: opt -S --passes="print-dx-shader-flags" 2>&1 %s | FileCheck %s
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; This test checks to ensure that setting the LLVM module flag "dx.resmayalias"
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; to 0 has no effect on the DXIL shader flag analysis for the flag
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; ResMayNotAlias.
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target triple = "dxil-pc-shadermodel6.8-library"
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; CHECK: Combined Shader Flags for Module
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; CHECK-NEXT: Shader Flags Value: 0x200000010
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; CHECK: Note: extra DXIL module flags:
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; CHECK: Raw and structured buffers
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; CHECK: Any UAV may not alias any other UAV
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;
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; CHECK: Function loadUAV : 0x20000000
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define float @loadUAV() #0 {
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%res = call target("dx.TypedBuffer", float, 1, 0, 0)
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@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
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%load = call {float, i1} @llvm.dx.resource.load.typedbuffer(
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target("dx.TypedBuffer", float, 1, 0, 0) %res, i32 0)
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%val = extractvalue {float, i1} %load, 0
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ret float %val
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}
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; CHECK: Function loadSRV : 0x00000010
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define float @loadSRV() #0 {
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%res = tail call target("dx.RawBuffer", float, 0, 0)
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@llvm.dx.resource.handlefrombinding(i32 0, i32 0, i32 1, i32 0, ptr null)
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%load = call {float, i1} @llvm.dx.resource.load.rawbuffer(
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target("dx.RawBuffer", float, 0, 0) %res, i32 0, i32 0)
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%val = extractvalue { float, i1 } %load, 0
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ret float %val
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}
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!llvm.module.flags = !{!0}
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!dx.valver = !{!1}
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; dx.resmayalias should never appear with a value of 0.
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; But if it does, ensure that it has no effect.
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!0 = !{i32 1, !"dx.resmayalias", i32 0}
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!1 = !{i32 1, i32 8}
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attributes #0 = { convergent norecurse nounwind "hlsl.export"}
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