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ben-claytonben-clayton
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[DxbcConverter] Fix corruption of ICB integer values (#4790)
Use an array of 32-bit integer values instead of 32-bit float values for the `"dx.icb"` immediate constant buffer data. This prevents the FPU flipping the 22nd bit of integer constants, when their bit pattern represents a float32 signalling NaN on x86 architecture. Fixes #4786
1 parent b348d24 commit 0a1f7a1

5 files changed

Lines changed: 202 additions & 97 deletions

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‎projects/dxilconv/lib/DxbcConverter/DxbcConverter.cpp‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -2127,9 +2127,9 @@ void DxbcConverter::ConvertInstructions(D3D10ShaderBinary::CShaderCodeParser &Pa
21272127
unsigned Size = Inst.m_CustomData.DataSizeInBytes >> 2;
21282128
DXASSERT_DXBC(m_pIcbGV == nullptr && Inst.m_CustomData.DataSizeInBytes == Size*4);
21292129

2130-
llvm::Constant *pIcbData = ConstantDataArray::get(m_Ctx, ArrayRef<float>((float*)Inst.m_CustomData.pData, Size));
2130+
llvm::Constant *pIcbData = ConstantDataArray::get(m_Ctx, ArrayRef<uint32_t>((uint32_t*)Inst.m_CustomData.pData, Size));
21312131
m_pIcbGV = new GlobalVariable(*m_pModule, pIcbData->getType(), true, GlobalValue::InternalLinkage,
2132-
pIcbData, "dx.icb", nullptr,
2132+
pIcbData, "dx.icb", nullptr,
21332133
GlobalVariable::NotThreadLocal, DXIL::kImmediateCBufferAddrSpace);
21342134
}
21352135
break;
@@ -6074,7 +6074,7 @@ void DxbcConverter::LoadOperand(OperandValue &SrcVal,
60746074
Value *pPtr = m_pBuilder->CreateGEP(m_pIcbGV, pGEPIndices);
60756075
LoadInst *pLoad = m_pBuilder->CreateLoad(pPtr);
60766076
pLoad->setAlignment(kRegCompAlignment);
6077-
Value *pValue = CastDxbcValue(pLoad, CompType::getF32(), ValueType);
6077+
Value *pValue = CastDxbcValue(pLoad, CompType::getU32(), ValueType);
60786078
pValue = ApplyOperandModifiers(pValue, O);
60796079

60806080
OVH.SetValue(pValue);

‎projects/dxilconv/test/dxbc2dxil/icb1.ref‎

Lines changed: 117 additions & 94 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11

2-
@dx.icb = internal addrspace(5) constant [16 x float] [float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00]
2+
@dx.icb = internal addrspace(5) constant [16 x i32] [i32 1065353216, i32 0, i32 0, i32 0, i32 0, i32 1065353216, i32 0, i32 0, i32 0, i32 0, i32 1065353216, i32 0, i32 0, i32 0, i32 0, i32 1065353216]
33

44
define void @main() {
55
entry:
@@ -11,102 +11,122 @@ entry:
1111
%5 = call float @dx.op.loadInput.f32(i32 4, i32 0, i32 0, i8 3, i32 undef)
1212
%6 = mul i32 %1, 4
1313
%7 = add i32 %6, 0
14-
%8 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %7
15-
%9 = load float, float addrspace(5)* %8, align 4
16-
%10 = mul i32 %1, 4
17-
%11 = add i32 %10, 1
18-
%12 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %11
19-
%13 = load float, float addrspace(5)* %12, align 4
20-
%14 = mul i32 %1, 4
21-
%15 = add i32 %14, 2
22-
%16 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %15
23-
%17 = load float, float addrspace(5)* %16, align 4
24-
%18 = mul i32 %1, 4
25-
%19 = add i32 %18, 3
26-
%20 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %19
27-
%21 = load float, float addrspace(5)* %20, align 4
28-
%22 = call float @dx.op.dot4.f32(i32 56, float %2, float %3, float %4, float %5, float %9, float %13, float %17, float %21)
29-
%23 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 0, i32 undef)
30-
%24 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 1, i32 undef)
31-
%25 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 2, i32 undef)
32-
%26 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 3, i32 undef)
33-
%27 = mul i32 %1, 4
34-
%28 = add i32 %27, 0
35-
%29 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %28
36-
%30 = load float, float addrspace(5)* %29, align 4
14+
%8 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %7
15+
%9 = load i32, i32 addrspace(5)* %8, align 4
16+
%10 = call float @dx.op.bitcastI32toF32(i32 126, i32 %9)
17+
%11 = mul i32 %1, 4
18+
%12 = add i32 %11, 1
19+
%13 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %12
20+
%14 = load i32, i32 addrspace(5)* %13, align 4
21+
%15 = call float @dx.op.bitcastI32toF32(i32 126, i32 %14)
22+
%16 = mul i32 %1, 4
23+
%17 = add i32 %16, 2
24+
%18 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %17
25+
%19 = load i32, i32 addrspace(5)* %18, align 4
26+
%20 = call float @dx.op.bitcastI32toF32(i32 126, i32 %19)
27+
%21 = mul i32 %1, 4
28+
%22 = add i32 %21, 3
29+
%23 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %22
30+
%24 = load i32, i32 addrspace(5)* %23, align 4
31+
%25 = call float @dx.op.bitcastI32toF32(i32 126, i32 %24)
32+
%26 = call float @dx.op.dot4.f32(i32 56, float %2, float %3, float %4, float %5, float %10, float %15, float %20, float %25)
33+
%27 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 0, i32 undef)
34+
%28 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 1, i32 undef)
35+
%29 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 2, i32 undef)
36+
%30 = call float @dx.op.loadInput.f32(i32 4, i32 1, i32 0, i8 3, i32 undef)
3737
%31 = mul i32 %1, 4
38-
%32 = add i32 %31, 1
39-
%33 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %32
40-
%34 = load float, float addrspace(5)* %33, align 4
41-
%35 = mul i32 %1, 4
42-
%36 = add i32 %35, 2
43-
%37 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %36
44-
%38 = load float, float addrspace(5)* %37, align 4
45-
%39 = mul i32 %1, 4
46-
%40 = add i32 %39, 3
47-
%41 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %40
48-
%42 = load float, float addrspace(5)* %41, align 4
49-
%43 = call float @dx.op.dot4.f32(i32 56, float %23, float %24, float %25, float %26, float %30, float %34, float %38, float %42)
50-
%44 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 0, i32 undef)
51-
%45 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 1, i32 undef)
52-
%46 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 2, i32 undef)
53-
%47 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 3, i32 undef)
54-
%48 = mul i32 %1, 4
55-
%49 = add i32 %48, 0
56-
%50 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %49
57-
%51 = load float, float addrspace(5)* %50, align 4
58-
%52 = mul i32 %1, 4
59-
%53 = add i32 %52, 1
60-
%54 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %53
61-
%55 = load float, float addrspace(5)* %54, align 4
38+
%32 = add i32 %31, 0
39+
%33 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %32
40+
%34 = load i32, i32 addrspace(5)* %33, align 4
41+
%35 = call float @dx.op.bitcastI32toF32(i32 126, i32 %34)
42+
%36 = mul i32 %1, 4
43+
%37 = add i32 %36, 1
44+
%38 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %37
45+
%39 = load i32, i32 addrspace(5)* %38, align 4
46+
%40 = call float @dx.op.bitcastI32toF32(i32 126, i32 %39)
47+
%41 = mul i32 %1, 4
48+
%42 = add i32 %41, 2
49+
%43 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %42
50+
%44 = load i32, i32 addrspace(5)* %43, align 4
51+
%45 = call float @dx.op.bitcastI32toF32(i32 126, i32 %44)
52+
%46 = mul i32 %1, 4
53+
%47 = add i32 %46, 3
54+
%48 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %47
55+
%49 = load i32, i32 addrspace(5)* %48, align 4
56+
%50 = call float @dx.op.bitcastI32toF32(i32 126, i32 %49)
57+
%51 = call float @dx.op.dot4.f32(i32 56, float %27, float %28, float %29, float %30, float %35, float %40, float %45, float %50)
58+
%52 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 0, i32 undef)
59+
%53 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 1, i32 undef)
60+
%54 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 2, i32 undef)
61+
%55 = call float @dx.op.loadInput.f32(i32 4, i32 2, i32 0, i8 3, i32 undef)
6262
%56 = mul i32 %1, 4
63-
%57 = add i32 %56, 2
64-
%58 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %57
65-
%59 = load float, float addrspace(5)* %58, align 4
66-
%60 = mul i32 %1, 4
67-
%61 = add i32 %60, 3
68-
%62 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %61
69-
%63 = load float, float addrspace(5)* %62, align 4
70-
%64 = call float @dx.op.dot4.f32(i32 56, float %44, float %45, float %46, float %47, float %51, float %55, float %59, float %63)
71-
%65 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 0, i32 undef)
72-
%66 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 1, i32 undef)
73-
%67 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 2, i32 undef)
74-
%68 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 3, i32 undef)
75-
%69 = mul i32 %1, 4
76-
%70 = add i32 %69, 0
77-
%71 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %70
78-
%72 = load float, float addrspace(5)* %71, align 4
79-
%73 = mul i32 %1, 4
80-
%74 = add i32 %73, 1
81-
%75 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %74
82-
%76 = load float, float addrspace(5)* %75, align 4
83-
%77 = mul i32 %1, 4
84-
%78 = add i32 %77, 2
85-
%79 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %78
86-
%80 = load float, float addrspace(5)* %79, align 4
63+
%57 = add i32 %56, 0
64+
%58 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %57
65+
%59 = load i32, i32 addrspace(5)* %58, align 4
66+
%60 = call float @dx.op.bitcastI32toF32(i32 126, i32 %59)
67+
%61 = mul i32 %1, 4
68+
%62 = add i32 %61, 1
69+
%63 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %62
70+
%64 = load i32, i32 addrspace(5)* %63, align 4
71+
%65 = call float @dx.op.bitcastI32toF32(i32 126, i32 %64)
72+
%66 = mul i32 %1, 4
73+
%67 = add i32 %66, 2
74+
%68 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %67
75+
%69 = load i32, i32 addrspace(5)* %68, align 4
76+
%70 = call float @dx.op.bitcastI32toF32(i32 126, i32 %69)
77+
%71 = mul i32 %1, 4
78+
%72 = add i32 %71, 3
79+
%73 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %72
80+
%74 = load i32, i32 addrspace(5)* %73, align 4
81+
%75 = call float @dx.op.bitcastI32toF32(i32 126, i32 %74)
82+
%76 = call float @dx.op.dot4.f32(i32 56, float %52, float %53, float %54, float %55, float %60, float %65, float %70, float %75)
83+
%77 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 0, i32 undef)
84+
%78 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 1, i32 undef)
85+
%79 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 2, i32 undef)
86+
%80 = call float @dx.op.loadInput.f32(i32 4, i32 3, i32 0, i8 3, i32 undef)
8787
%81 = mul i32 %1, 4
88-
%82 = add i32 %81, 3
89-
%83 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %82
90-
%84 = load float, float addrspace(5)* %83, align 4
91-
%85 = call float @dx.op.dot4.f32(i32 56, float %65, float %66, float %67, float %68, float %72, float %76, float %80, float %84)
92-
%86 = mul i32 %0, 4
93-
%87 = add i32 %86, 0
94-
%88 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %87
95-
%89 = load float, float addrspace(5)* %88, align 4
96-
%90 = mul i32 %0, 4
97-
%91 = add i32 %90, 1
98-
%92 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %91
99-
%93 = load float, float addrspace(5)* %92, align 4
100-
%94 = mul i32 %0, 4
101-
%95 = add i32 %94, 2
102-
%96 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %95
103-
%97 = load float, float addrspace(5)* %96, align 4
104-
%98 = mul i32 %0, 4
105-
%99 = add i32 %98, 3
106-
%100 = getelementptr [16 x float], [16 x float] addrspace(5)* @dx.icb, i32 0, i32 %99
107-
%101 = load float, float addrspace(5)* %100, align 4
108-
%102 = call float @dx.op.dot4.f32(i32 56, float %22, float %43, float %64, float %85, float %89, float %93, float %97, float %101)
109-
call void @dx.op.storeOutput.f32(i32 5, i32 0, i32 0, i8 0, float %102)
88+
%82 = add i32 %81, 0
89+
%83 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %82
90+
%84 = load i32, i32 addrspace(5)* %83, align 4
91+
%85 = call float @dx.op.bitcastI32toF32(i32 126, i32 %84)
92+
%86 = mul i32 %1, 4
93+
%87 = add i32 %86, 1
94+
%88 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %87
95+
%89 = load i32, i32 addrspace(5)* %88, align 4
96+
%90 = call float @dx.op.bitcastI32toF32(i32 126, i32 %89)
97+
%91 = mul i32 %1, 4
98+
%92 = add i32 %91, 2
99+
%93 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %92
100+
%94 = load i32, i32 addrspace(5)* %93, align 4
101+
%95 = call float @dx.op.bitcastI32toF32(i32 126, i32 %94)
102+
%96 = mul i32 %1, 4
103+
%97 = add i32 %96, 3
104+
%98 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %97
105+
%99 = load i32, i32 addrspace(5)* %98, align 4
106+
%100 = call float @dx.op.bitcastI32toF32(i32 126, i32 %99)
107+
%101 = call float @dx.op.dot4.f32(i32 56, float %77, float %78, float %79, float %80, float %85, float %90, float %95, float %100)
108+
%102 = mul i32 %0, 4
109+
%103 = add i32 %102, 0
110+
%104 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %103
111+
%105 = load i32, i32 addrspace(5)* %104, align 4
112+
%106 = call float @dx.op.bitcastI32toF32(i32 126, i32 %105)
113+
%107 = mul i32 %0, 4
114+
%108 = add i32 %107, 1
115+
%109 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %108
116+
%110 = load i32, i32 addrspace(5)* %109, align 4
117+
%111 = call float @dx.op.bitcastI32toF32(i32 126, i32 %110)
118+
%112 = mul i32 %0, 4
119+
%113 = add i32 %112, 2
120+
%114 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %113
121+
%115 = load i32, i32 addrspace(5)* %114, align 4
122+
%116 = call float @dx.op.bitcastI32toF32(i32 126, i32 %115)
123+
%117 = mul i32 %0, 4
124+
%118 = add i32 %117, 3
125+
%119 = getelementptr [16 x i32], [16 x i32] addrspace(5)* @dx.icb, i32 0, i32 %118
126+
%120 = load i32, i32 addrspace(5)* %119, align 4
127+
%121 = call float @dx.op.bitcastI32toF32(i32 126, i32 %120)
128+
%122 = call float @dx.op.dot4.f32(i32 56, float %26, float %51, float %76, float %101, float %106, float %111, float %116, float %121)
129+
call void @dx.op.storeOutput.f32(i32 5, i32 0, i32 0, i8 0, float %122)
110130
ret void
111131
}
112132

@@ -125,6 +145,9 @@ declare float @dx.op.loadInput.f32(i32, i32, i32, i8, i32) #0
125145
; Function Attrs: nounwind readonly
126146
declare i32 @dx.op.tempRegLoad.i32(i32, i32) #2
127147

148+
; Function Attrs: nounwind readnone
149+
declare float @dx.op.bitcastI32toF32(i32, i32) #0
150+
128151
; Function Attrs: nounwind
129152
declare void @dx.op.tempRegStore.f32(i32, i32, float) #1
130153

‎projects/dxilconv/test/dxbc2dxil/icb2.dxbc‎

708 Bytes
Binary file not shown.

‎projects/dxilconv/test/dxbc2dxil/icb2.hlsl‎

Lines changed: 16 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,16 @@
1+
// FXC command line: fxc /T ps_5_0 %s /Fo %t.dxbc
2+
// RUN: %dxbc2dxil %t.dxbc /emit-llvm /o %t.ll.converted
3+
// RUN: fc %b.ref %t.ll.converted
4+
5+
RWByteAddressBuffer b : register(u0, space0);
6+
7+
[numthreads(1, 1, 1)]
8+
void main() {
9+
{
10+
for(uint i = 0u; (i < 3u); i = (i + 1u)) {
11+
const uint icb[3] = {0xffbfffcau, 0x09909909u, 1u};
12+
b.Store((4u * min(i, 2u)), asuint(icb[min(i, 2u)]));
13+
}
14+
}
15+
return;
16+
}

‎projects/dxilconv/test/dxbc2dxil/icb2.ref‎

Lines changed: 66 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,66 @@
1+
2+
%dx.types.Handle = type { i8* }
3+
%dx.types.u32 = type { i32 }
4+
5+
@dx.icb = internal addrspace(5) constant [12 x i32] [i32 -4194358, i32 0, i32 0, i32 0, i32 160471305, i32 0, i32 0, i32 0, i32 1, i32 0, i32 0, i32 0]
6+
7+
define void @main() {
8+
entry:
9+
br label %loop0
10+
11+
loop0: ; preds = %loop0.breakc0, %entry
12+
%dx.v32.r0.0 = phi i32 [ 0, %entry ], [ %8, %loop0.breakc0 ]
13+
%0 = icmp uge i32 %dx.v32.r0.0, 3
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br i1 %0, label %loop0.end, label %loop0.breakc0
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loop0.breakc0: ; preds = %loop0
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%1 = call i32 @dx.op.binary.i32(i32 40, i32 %dx.v32.r0.0, i32 2)
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%2 = shl i32 %1, 2
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%3 = call %dx.types.Handle @dx.op.createHandle(i32 57, i8 1, i32 0, i32 0, i1 false)
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%4 = mul i32 %1, 4
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%5 = add i32 %4, 0
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%6 = getelementptr [12 x i32], [12 x i32] addrspace(5)* @dx.icb, i32 0, i32 %5
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%7 = load i32, i32 addrspace(5)* %6, align 4
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call void @dx.op.bufferStore.i32(i32 69, %dx.types.Handle %3, i32 %2, i32 undef, i32 %7, i32 undef, i32 undef, i32 undef, i8 1)
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%8 = add i32 %dx.v32.r0.0, 1
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br label %loop0
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loop0.end: ; preds = %loop0
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ret void
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}
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; Function Attrs: nounwind
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declare void @dx.op.tempRegStore.i32(i32, i32, i32) #0
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; Function Attrs: nounwind readonly
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declare i32 @dx.op.tempRegLoad.i32(i32, i32) #1
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; Function Attrs: nounwind readnone
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declare i32 @dx.op.binary.i32(i32, i32, i32) #2
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; Function Attrs: nounwind readonly
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declare %dx.types.Handle @dx.op.createHandle(i32, i8, i32, i32, i1) #1
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; Function Attrs: nounwind
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declare void @dx.op.bufferStore.i32(i32, %dx.types.Handle, i32, i32, i32, i32, i32, i32, i8) #0
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readonly }
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attributes #2 = { nounwind readnone }
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!dx.version = !{!0}
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!dx.valver = !{!0}
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!dx.shaderModel = !{!1}
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!dx.resources = !{!2}
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!dx.entryPoints = !{!5}
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!llvm.ident = !{!8}
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!0 = !{i32 1, i32 0}
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!1 = !{!"cs", i32 6, i32 0}
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!2 = !{null, !3, null, null}
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!3 = !{!4}
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!4 = !{i32 0, %dx.types.u32 addrspace(1)* undef, !"U0", i32 0, i32 0, i32 1, i32 11, i1 false, i1 false, i1 false, null}
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!5 = !{void ()* @main, !"main", null, !2, !6}
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!6 = !{i32 4, !7}
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!7 = !{i32 1, i32 1, i32 1}
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!8 = !{!"dxbc2dxil 1.2"}

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