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