| ; 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(i32 addrspace(1)* noalias %out, i32 %val) nounwind { |
| %ctlz = call i32 @llvm.ctlz.i32(i32 %val, i1 false) nounwind readnone |
| store i32 %ctlz, i32 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(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %valptr) nounwind { |
| %tid = call i32 @llvm.amdgcn.workitem.id.x() |
| %in.gep = getelementptr i32, i32 addrspace(1)* %valptr, i32 %tid |
| %val = load i32, i32 addrspace(1)* %in.gep, align 4 |
| %ctlz = call i32 @llvm.ctlz.i32(i32 %val, i1 false) nounwind readnone |
| store i32 %ctlz, i32 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(i32 addrspace(1)* noalias %out, i32 %val) nounwind { |
| %cttz = call i32 @llvm.cttz.i32(i32 %val, i1 false) nounwind readnone |
| store i32 %cttz, i32 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(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %valptr) nounwind { |
| %tid = call i32 @llvm.amdgcn.workitem.id.x() |
| %in.gep = getelementptr i32, i32 addrspace(1)* %valptr, i32 %tid |
| %val = load i32, i32 addrspace(1)* %in.gep, align 4 |
| %cttz = call i32 @llvm.cttz.i32(i32 %val, i1 false) nounwind readnone |
| store i32 %cttz, i32 addrspace(1)* %out, align 4 |
| ret void |
| } |
| |
| ; GCN-LABEL: name: s_flbit |
| ; GCN: S_FLBIT_I32 |
| define amdgpu_kernel void @s_flbit(i32 addrspace(1)* noalias %out, i32 %val) #0 { |
| %r = call i32 @llvm.amdgcn.sffbh.i32(i32 %val) |
| store i32 %r, i32 addrspace(1)* %out, align 4 |
| ret void |
| } |
| |
| ; GCN-LABEL: name: v_flbit |
| ; GCN: V_FFBH_I32_e64 |
| define amdgpu_kernel void @v_flbit(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %valptr) #0 { |
| %tid = call i32 @llvm.amdgcn.workitem.id.x() |
| %in.gep = getelementptr i32, i32 addrspace(1)* %valptr, i32 %tid |
| %val = load i32, i32 addrspace(1)* %in.gep, align 4 |
| %r = call i32 @llvm.amdgcn.sffbh.i32(i32 %val) |
| store i32 %r, i32 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 |
| |