ba572abeb4
This commit adds an intrinsic that will read from an image buffer. We chose to match the name of the DXIL intrinsic for simplicity in clang. We cannot reuse the existing openCL readimage function because that is not a reserved name in HLSL. I considered trying to refactor generateReadImageInst, so that we could share code between the two implementations. However, most of the code in generateReadImageInst is concerned with trying to figure out which type of image read is being done. Once we factor out the code that will be common, then we end up with just a single call to the MIRBuilder being common.
67 lines
2.9 KiB
LLVM
67 lines
2.9 KiB
LLVM
; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-vulkan-library %s -o - | FileCheck %s
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; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-library %s -o - -filetype=obj | spirv-val %}
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; CHECK-NOT: OpCapability StorageImageReadWithoutFormat
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; CHECK-DAG: OpDecorate [[IntBufferVar:%[0-9]+]] DescriptorSet 16
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; CHECK-DAG: OpDecorate [[IntBufferVar]] Binding 7
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; CHECK-DAG: [[int:%[0-9]+]] = OpTypeInt 32 0
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; CHECK-DAG: [[zero:%[0-9]+]] = OpConstant [[int]] 0
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; CHECK-DAG: [[v4_int:%[0-9]+]] = OpTypeVector [[int]] 4
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; CHECK-DAG: [[v2_int:%[0-9]+]] = OpTypeVector [[int]] 2
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; CHECK-DAG: [[RWBufferTypeInt:%[0-9]+]] = OpTypeImage [[int]] Buffer 2 0 0 2 R32i {{$}}
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; CHECK-DAG: [[IntBufferPtrType:%[0-9]+]] = OpTypePointer UniformConstant [[RWBufferTypeInt]]
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; CHECK-DAG: [[IntBufferVar]] = OpVariable [[IntBufferPtrType]] UniformConstant
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; CHECK: {{%[0-9]+}} = OpFunction {{%[0-9]+}} DontInline {{%[0-9]+}}
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; CHECK-NEXT: OpLabel
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define void @RWBufferLoad_Vec4_I32() #0 {
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; CHECK: [[buffer:%[0-9]+]] = OpLoad [[RWBufferTypeInt]] [[IntBufferVar]]
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%buffer0 = call target("spirv.Image", i32, 5, 2, 0, 0, 2, 24)
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@llvm.spv.handle.fromBinding.tspirv.Image_i32_5_2_0_0_2_24(
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i32 16, i32 7, i32 1, i32 0, i1 false)
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; CHECK: OpImageRead [[v4_int]] [[buffer]] [[zero]]
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%data0 = call <4 x i32> @llvm.spv.typedBufferLoad(
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target("spirv.Image", i32, 5, 2, 0, 0, 2, 24) %buffer0, i32 0)
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ret void
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}
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; CHECK: {{%[0-9]+}} = OpFunction {{%[0-9]+}} DontInline {{%[0-9]+}}
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; CHECK-NEXT: OpLabel
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define void @RWBufferLoad_I32() #0 {
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; CHECK: [[buffer:%[0-9]+]] = OpLoad [[RWBufferTypeInt]] [[IntBufferVar]]
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%buffer1 = call target("spirv.Image", i32, 5, 2, 0, 0, 2, 24)
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@llvm.spv.handle.fromBinding.tspirv.Image_i32_5_2_0_0_2_24(
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i32 16, i32 7, i32 1, i32 0, i1 false)
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; CHECK: [[V:%[0-9]+]] = OpImageRead [[v4_int]] [[buffer]] [[zero]]
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; CHECK: OpCompositeExtract [[int]] [[V]] 0
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%data1 = call i32 @llvm.spv.typedBufferLoad(
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target("spirv.Image", i32, 5, 2, 0, 0, 2, 24) %buffer1, i32 0)
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ret void
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}
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; CHECK: {{%[0-9]+}} = OpFunction {{%[0-9]+}} DontInline {{%[0-9]+}}
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; CHECK-NEXT: OpLabel
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define void @RWBufferLoad_Vec2_I32() #0 {
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; CHECK: [[buffer:%[0-9]+]] = OpLoad [[RWBufferTypeInt]] [[IntBufferVar]]
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%buffer0 = call target("spirv.Image", i32, 5, 2, 0, 0, 2, 24)
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@llvm.spv.handle.fromBinding.tspirv.Image_i32_5_2_0_0_2_24(
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i32 16, i32 7, i32 1, i32 0, i1 false)
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; CHECK: [[V:%[0-9]+]] = OpImageRead [[v4_int]] [[buffer]] [[zero]]
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; CHECK: [[e0:%[0-9]+]] = OpCompositeExtract [[int]] [[V]] 0
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; CHECK: [[e1:%[0-9]+]] = OpCompositeExtract [[int]] [[V]] 1
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; CHECK: OpCompositeConstruct [[v2_int]] [[e0]] [[e1]]
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%data0 = call <2 x i32> @llvm.spv.typedBufferLoad(
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target("spirv.Image", i32, 5, 2, 0, 0, 2, 24) %buffer0, i32 0)
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ret void
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}
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attributes #0 = { convergent noinline norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
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