f1b411c9e8
This is somewhat awkward to support, but the best effort we can do here is to analyze various Load/Store opcodes and deduce the ideal overall alignment based on this. This is not a 100% perfect solution, but should be correct for any reasonable use case. Also fix various nitpicks with BDA support while I'm at it.
45 lines
1.9 KiB
Plaintext
45 lines
1.9 KiB
Plaintext
; SPIR-V
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; Version: 1.0
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; Generator: Khronos Glslang Reference Front End; 10
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; Bound: 25
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; Schema: 0
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OpCapability Shader
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OpCapability PhysicalStorageBufferAddresses
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OpExtension "SPV_EXT_physical_storage_buffer"
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel PhysicalStorageBuffer64 GLSL450
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OpEntryPoint GLCompute %main "main"
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OpExecutionMode %main LocalSize 1 1 1
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OpSource GLSL 450
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OpSourceExtension "GL_EXT_buffer_reference"
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OpName %main "main"
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OpName %Push "Push"
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OpMemberName %Push 0 "ptr"
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OpName %_ ""
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OpMemberDecorate %Push 0 Offset 0
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OpDecorate %Push Block
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%void = OpTypeVoid
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%3 = OpTypeFunction %void
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%uint = OpTypeInt 32 0
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%v4uint = OpTypeVector %uint 4
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%_ptr_PhysicalStorageBuffer_uintPtr = OpTypePointer PhysicalStorageBuffer %v4uint
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%Push = OpTypeStruct %_ptr_PhysicalStorageBuffer_uintPtr
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%_ptr_PushConstant_Push = OpTypePointer PushConstant %Push
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%_ = OpVariable %_ptr_PushConstant_Push PushConstant
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%_ptr_PushConstant__ptr_PhysicalStorageBuffer_uintPtr = OpTypePointer PushConstant %_ptr_PhysicalStorageBuffer_uintPtr
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%uint_1 = OpConstant %uint 1
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%uint_2 = OpConstant %uint 2
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%uint_3 = OpConstant %uint 3
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%uint_4 = OpConstant %uint 4
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%22 = OpConstantComposite %v4uint %uint_1 %uint_2 %uint_3 %uint_4
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%_ptr_PhysicalStorageBuffer_v4uint = OpTypePointer PhysicalStorageBuffer %v4uint
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%main = OpFunction %void None %3
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%5 = OpLabel
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;%16 = OpAccessChain %_ptr_PushConstant__ptr_PhysicalStorageBuffer_uintPtr %_ %int_0
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;%17 = OpLoad %_ptr_PhysicalStorageBuffer_uintPtr %16
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; OpStore %17 %22 Aligned 8
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OpReturn
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OpFunctionEnd
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