30 lines
1.2 KiB
LLVM
30 lines
1.2 KiB
LLVM
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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declare i32 @llvm.amdgcn.sffbh.i32(i32) #1
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; GCN-LABEL: {{^}}s_flbit:
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; GCN: s_load_dword [[VAL:s[0-9]+]],
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; GCN: s_flbit_i32 [[SRESULT:s[0-9]+]], [[VAL]]
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; GCN: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]]
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; GCN: buffer_store_dword [[VRESULT]],
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define amdgpu_kernel void @s_flbit(i32 addrspace(1)* noalias %out, i32 %val) #0 {
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%r = call i32 @llvm.amdgcn.sffbh.i32(i32 %val)
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store i32 %r, i32 addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: {{^}}v_flbit:
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; GCN: buffer_load_dword [[VAL:v[0-9]+]],
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; GCN: v_ffbh_i32_e32 [[RESULT:v[0-9]+]], [[VAL]]
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; GCN: buffer_store_dword [[RESULT]],
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define amdgpu_kernel void @v_flbit(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %valptr) #0 {
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%val = load i32, i32 addrspace(1)* %valptr, align 4
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%r = call i32 @llvm.amdgcn.sffbh.i32(i32 %val)
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store i32 %r, i32 addrspace(1)* %out, align 4
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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