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https://github.com/gfx-rs/wgpu.git
synced 2026-04-22 03:02:01 -04:00
1b09a44af5
Simplify `naga::back::spv::LocalType` to have only one variant for representing pointers, and use the SPIR-V type as the base type, so that `LocalType` values are equal when the SPIR-V pointer types they map to would be equal as well. This avoids emitting multiple `OpTypePointer` instructions, which SPIR-V would interpret as distinct types, for equivalent Naga IR pointer types. Change the `get_pointer_type_id` utility function accordingly, and adjust its callers. Change `LocalType::from_inner` into `Writer::localtype_from_inner`, so that it can call `Writer` methods to build base types. Adjust users.
65 lines
1.6 KiB
Plaintext
65 lines
1.6 KiB
Plaintext
; SPIR-V
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; Version: 1.0
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; Generator: rspirv
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; Bound: 38
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Vertex %28 "vertex" %15 %18 %20 %22 %24 %26
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OpMemberDecorate %5 0 Offset 0
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OpMemberDecorate %5 1 Offset 16
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OpMemberDecorate %7 0 Offset 0
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OpMemberDecorate %7 1 Offset 4
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OpMemberDecorate %7 2 Offset 8
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OpDecorate %9 ArrayStride 4
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OpMemberDecorate %12 0 Offset 0
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OpMemberDecorate %13 0 Offset 0
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OpDecorate %15 BuiltIn VertexIndex
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OpDecorate %18 BuiltIn InstanceIndex
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OpDecorate %20 Location 10
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OpDecorate %22 Invariant
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OpDecorate %22 BuiltIn Position
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OpDecorate %24 Location 1
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OpDecorate %26 BuiltIn PointSize
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%2 = OpTypeVoid
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%3 = OpTypeFloat 32
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%4 = OpTypeVector %3 4
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%5 = OpTypeStruct %4 %3
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%6 = OpTypeInt 32 0
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%7 = OpTypeStruct %3 %6 %3
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%8 = OpTypeBool
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%10 = OpConstant %6 1
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%9 = OpTypeArray %6 %10
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%11 = OpTypeVector %6 3
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%12 = OpTypeStruct %6
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%13 = OpTypeStruct %6
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%16 = OpTypePointer Input %6
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%15 = OpVariable %16 Input
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%18 = OpVariable %16 Input
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%20 = OpVariable %16 Input
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%23 = OpTypePointer Output %4
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%22 = OpVariable %23 Output
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%25 = OpTypePointer Output %3
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%24 = OpVariable %25 Output
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%26 = OpVariable %25 Output
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%27 = OpConstant %3 1.0
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%29 = OpTypeFunction %2
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%30 = OpConstantComposite %4 %27 %27 %27 %27
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%28 = OpFunction %2 None %29
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%14 = OpLabel
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%17 = OpLoad %6 %15
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%19 = OpLoad %6 %18
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%21 = OpLoad %6 %20
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OpStore %26 %27
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OpBranch %31
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%31 = OpLabel
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%32 = OpIAdd %6 %17 %19
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%33 = OpIAdd %6 %32 %21
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%34 = OpConvertUToF %3 %33
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%35 = OpCompositeConstruct %5 %30 %34
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%36 = OpCompositeExtract %4 %35 0
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OpStore %22 %36
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%37 = OpCompositeExtract %3 %35 1
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OpStore %24 %37
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OpReturn
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OpFunctionEnd |