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; RUN: llc -march=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -check-prefix=GCN %s
; GCN-LABEL: name: s_ctlz_i32
; GCN: S_FLBIT_I32_B32
define amdgpu_kernel void @s_ctlz_i32(ptr addrspace(1) noalias %out, i32 %val) nounwind {
%ctlz = call i32 @llvm.ctlz.i32(i32 %val, i1 false) nounwind readnone
store i32 %ctlz, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: name: v_ctlz_i32
; GCN: V_FFBH_U32_e64
define amdgpu_kernel void @v_ctlz_i32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %valptr) nounwind {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%in.gep = getelementptr i32, ptr addrspace(1) %valptr, i32 %tid
%val = load i32, ptr addrspace(1) %in.gep, align 4
%ctlz = call i32 @llvm.ctlz.i32(i32 %val, i1 false) nounwind readnone
store i32 %ctlz, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: name: s_cttz_i32
; GCN: S_FF1_I32_B32
define amdgpu_kernel void @s_cttz_i32(ptr addrspace(1) noalias %out, i32 %val) nounwind {
%cttz = call i32 @llvm.cttz.i32(i32 %val, i1 false) nounwind readnone
store i32 %cttz, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: name: v_cttz_i32
; GCN: V_FFBL_B32_e64
define amdgpu_kernel void @v_cttz_i32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %valptr) nounwind {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%in.gep = getelementptr i32, ptr addrspace(1) %valptr, i32 %tid
%val = load i32, ptr addrspace(1) %in.gep, align 4
%cttz = call i32 @llvm.cttz.i32(i32 %val, i1 false) nounwind readnone
store i32 %cttz, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: name: s_flbit
; GCN: S_FLBIT_I32
define amdgpu_kernel void @s_flbit(ptr addrspace(1) noalias %out, i32 %val) #0 {
%r = call i32 @llvm.amdgcn.sffbh.i32(i32 %val)
store i32 %r, ptr addrspace(1) %out, align 4
ret void
}
; GCN-LABEL: name: v_flbit
; GCN: V_FFBH_I32_e64
define amdgpu_kernel void @v_flbit(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %valptr) #0 {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%in.gep = getelementptr i32, ptr addrspace(1) %valptr, i32 %tid
%val = load i32, ptr addrspace(1) %in.gep, align 4
%r = call i32 @llvm.amdgcn.sffbh.i32(i32 %val)
store i32 %r, ptr addrspace(1) %out, align 4
ret void
}
declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone
declare i32 @llvm.cttz.i32(i32, i1) nounwind readnone
declare i32 @llvm.amdgcn.sffbh.i32(i32)
declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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