b0ad9c293a
Generate `OpBitCast` instruction for pointer cast operation if the
element type is different.
The HLSL for the unit test is
```hlsl
StructuredBuffer<uint2> In : register(t0);
RWStructuredBuffer<double2> Out : register(u2);
[numthreads(1,1,1)]
void main() {
Out[0] = asdouble(In[0], In[1]);
}
```
Resolves https://github.com/llvm/llvm-project/issues/153513
29 lines
2.1 KiB
LLVM
29 lines
2.1 KiB
LLVM
; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - | FileCheck %s --match-full-lines
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; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan %s -o - -filetype=obj | spirv-val %}
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; CHECK-DAG: %[[#uint:]] = OpTypeInt 32 0
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; CHECK-DAG: %[[#v2_uint:]] = OpTypeVector %[[#uint]] 2
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; CHECK-DAG: %[[#double:]] = OpTypeFloat 64
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; CHECK-DAG: %[[#v2_double:]] = OpTypeVector %[[#double]] 2
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; CHECK-DAG: %[[#v4_uint:]] = OpTypeVector %[[#uint]] 4
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@.str = private unnamed_addr constant [3 x i8] c"In\00", align 1
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@.str.2 = private unnamed_addr constant [4 x i8] c"Out\00", align 1
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define void @main() local_unnamed_addr #0 {
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entry:
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%0 = tail call target("spirv.VulkanBuffer", [0 x <2 x i32>], 12, 0) @llvm.spv.resource.handlefrombinding.tspirv.VulkanBuffer_a0v2i32_12_0t(i32 0, i32 0, i32 1, i32 0, ptr nonnull @.str)
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%1 = tail call target("spirv.VulkanBuffer", [0 x <2 x double>], 12, 1) @llvm.spv.resource.handlefrombinding.tspirv.VulkanBuffer_a0v2f64_12_1t(i32 0, i32 2, i32 1, i32 0, ptr nonnull @.str.2)
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%2 = tail call noundef align 8 dereferenceable(8) ptr addrspace(11) @llvm.spv.resource.getpointer.p11.tspirv.VulkanBuffer_a0v2i32_12_0t(target("spirv.VulkanBuffer", [0 x <2 x i32>], 12, 0) %0, i32 0)
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%3 = load <2 x i32>, ptr addrspace(11) %2, align 8
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%4 = tail call noundef align 8 dereferenceable(8) ptr addrspace(11) @llvm.spv.resource.getpointer.p11.tspirv.VulkanBuffer_a0v2i32_12_0t(target("spirv.VulkanBuffer", [0 x <2 x i32>], 12, 0) %0, i32 1)
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%5 = load <2 x i32>, ptr addrspace(11) %4, align 8
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; CHECK: %[[#tmp:]] = OpVectorShuffle %[[#v4_uint]] {{%[0-9]+}} {{%[0-9]+}} 0 2 1 3
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%6 = shufflevector <2 x i32> %3, <2 x i32> %5, <4 x i32> <i32 0, i32 2, i32 1, i32 3>
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; CHECK: %[[#access:]] = OpAccessChain {{.*}}
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%7 = tail call noundef align 16 dereferenceable(16) ptr addrspace(11) @llvm.spv.resource.getpointer.p11.tspirv.VulkanBuffer_a0v2f64_12_1t(target("spirv.VulkanBuffer", [0 x <2 x double>], 12, 1) %1, i32 0)
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; CHECK: %[[#bitcast:]] = OpBitcast %[[#v2_double]] %[[#tmp]]
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; CHECK: OpStore %[[#access]] %[[#bitcast]] Aligned 16
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store <4 x i32> %6, ptr addrspace(11) %7, align 16
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ret void
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}
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