derek.holloway
7502bf64a4
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31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; RUN: llc -mcpu=gfx1200 < %s | FileCheck %s --check-prefixes=CHECK,PACKED
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; RUN: llc -mcpu=gfx1030 < %s | FileCheck %s --check-prefixes=CHECK,NOTPACKED
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target triple = "amdgcn-amd-amdhsa"
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@global = addrspace(1) global i32 poison, align 4
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; Carefully crafted kernel that uses v0 but never writes a VGPR or reads another VGPR.
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; Only hardware-initialized VGPRs (v0) are read in this kernel.
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; CHECK-LABEL: amdhsa.kernels:
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; CHECK-LABEL: kernel_x
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; CHECK: .vgpr_count: 1
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define amdgpu_kernel void @kernel_x(ptr addrspace(8) %rsrc) #0 {
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entry:
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%id = call i32 @llvm.amdgcn.workitem.id.x()
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call void @llvm.amdgcn.raw.ptr.buffer.store.i32(i32 %id, ptr addrspace(8) %rsrc, i32 0, i32 0, i32 0)
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ret void
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}
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; CHECK-LABEL: kernel_z
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; PACKED: .vgpr_count: 1
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; NOTPACKED: .vgpr_count: 3
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define amdgpu_kernel void @kernel_z(ptr addrspace(8) %rsrc) {
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entry:
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%id = call i32 @llvm.amdgcn.workitem.id.z()
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call void @llvm.amdgcn.raw.ptr.buffer.store.i32(i32 %id, ptr addrspace(8) %rsrc, i32 0, i32 0, i32 0)
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ret void
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}
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attributes #0 = { "amdgpu-no-workitem-id-y" "amdgpu-no-workitem-id-z" }
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