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https://github.com/encounter/dawn-cmake.git
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3242d3e8c9
This uses FXC compilation failure mitigation for _any_ vector index assignment that has a non-constant index. FXC can still fall over if the loop calls a function that performs the dynamic index. Use some vector swizzle logic to avoid branches in the helper. Fixed: tint:980 Change-Id: I2a759d88a7d884bc61b4631cf57feb4acc8178de Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/57882 Auto-Submit: Ben Clayton <bclayton@google.com> Commit-Queue: Antonio Maiorano <amaiorano@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Antonio Maiorano <amaiorano@google.com>
73 lines
2.9 KiB
Plaintext
73 lines
2.9 KiB
Plaintext
; SPIR-V
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; Version: 1.3
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; Generator: Google Tint Compiler; 0
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; Bound: 41
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; Schema: 0
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OpCapability Shader
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%23 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %main "main"
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OpExecutionMode %main LocalSize 1 1 1
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OpName %S "S"
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OpMemberName %S 0 "v"
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OpMemberName %S 1 "i"
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OpName %io "io"
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OpName %tint_symbol "tint_symbol"
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OpName %Bad "Bad"
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OpName %index "index"
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OpName %rd "rd"
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OpName %normal "normal"
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OpName %main "main"
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OpDecorate %S Block
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OpMemberDecorate %S 0 Offset 0
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OpMemberDecorate %S 1 Offset 12
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OpDecorate %io Binding 0
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OpDecorate %io DescriptorSet 0
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OpDecorate %tint_symbol BuiltIn LocalInvocationIndex
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%float = OpTypeFloat 32
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%v3float = OpTypeVector %float 3
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%uint = OpTypeInt 32 0
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%S = OpTypeStruct %v3float %uint
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%_ptr_StorageBuffer_S = OpTypePointer StorageBuffer %S
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%io = OpVariable %_ptr_StorageBuffer_S StorageBuffer
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%_ptr_Input_uint = OpTypePointer Input %uint
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%tint_symbol = OpVariable %_ptr_Input_uint Input
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%9 = OpTypeFunction %v3float %uint %v3float
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%float_0 = OpConstant %float 0
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%15 = OpConstantComposite %v3float %float_0 %float_0 %float_0
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%_ptr_Function_v3float = OpTypePointer Function %v3float
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%18 = OpConstantNull %v3float
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%_ptr_Function_float = OpTypePointer Function %float
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%void = OpTypeVoid
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%27 = OpTypeFunction %void
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%uint_0 = OpConstant %uint 0
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%_ptr_StorageBuffer_v3float = OpTypePointer StorageBuffer %v3float
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%uint_1 = OpConstant %uint 1
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%_ptr_StorageBuffer_uint = OpTypePointer StorageBuffer %uint
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%Bad = OpFunction %v3float None %9
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%index = OpFunctionParameter %uint
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%rd = OpFunctionParameter %v3float
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%13 = OpLabel
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%normal = OpVariable %_ptr_Function_v3float Function %18
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OpStore %normal %15
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%20 = OpAccessChain %_ptr_Function_float %normal %index
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%24 = OpVectorExtractDynamic %float %rd %index
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%22 = OpExtInst %float %23 FSign %24
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%21 = OpFNegate %float %22
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OpStore %20 %21
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%26 = OpLoad %v3float %normal
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%25 = OpExtInst %v3float %23 Normalize %26
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OpReturnValue %25
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OpFunctionEnd
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%main = OpFunction %void None %27
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%30 = OpLabel
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%33 = OpAccessChain %_ptr_StorageBuffer_v3float %io %uint_0
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%37 = OpAccessChain %_ptr_StorageBuffer_uint %io %uint_1
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%38 = OpLoad %uint %37
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%39 = OpAccessChain %_ptr_StorageBuffer_v3float %io %uint_0
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%40 = OpLoad %v3float %39
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%34 = OpFunctionCall %v3float %Bad %38 %40
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OpStore %33 %34
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OpReturn
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OpFunctionEnd
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