1 ; RUN: llc -march=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -check-prefix=GCN %s
3 ; GCN-LABEL: name: s_ctpop_i32
5 define amdgpu_kernel void @s_ctpop_i32(ptr addrspace(1) noalias %out, i32 %val) nounwind {
6 %ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
7 store i32 %ctpop, ptr addrspace(1) %out, align 4
11 ; GCN-LABEL: name: s_ctpop_i64
12 ; GCN: %[[BCNT:[0-9]+]]:sreg_32 = S_BCNT1_I32_B64
13 ; GCN: %[[SREG1:[0-9]+]]:sreg_32 = COPY %[[BCNT]]
14 ; GCN: %[[SREG2:[0-9]+]]:sreg_32 = S_MOV_B32 0
15 ; GCN: REG_SEQUENCE killed %[[SREG1]], %subreg.sub0, killed %[[SREG2]], %subreg.sub1
16 define amdgpu_kernel void @s_ctpop_i64(ptr addrspace(1) noalias %out, i64 %val) nounwind {
17 %ctpop = call i64 @llvm.ctpop.i64(i64 %val) nounwind readnone
18 %truncctpop = trunc i64 %ctpop to i32
19 store i32 %truncctpop, ptr addrspace(1) %out, align 4
23 ; GCN-LABEL: name: v_ctpop_i32
24 ; GCN: V_BCNT_U32_B32_e64
25 define amdgpu_kernel void @v_ctpop_i32(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) nounwind {
26 %tid = call i32 @llvm.amdgcn.workitem.id.x()
27 %in.gep = getelementptr i32, ptr addrspace(1) %in, i32 %tid
28 %val = load i32, ptr addrspace(1) %in.gep, align 4
29 %ctpop = call i32 @llvm.ctpop.i32(i32 %val) nounwind readnone
30 store i32 %ctpop, ptr addrspace(1) %out, align 4
34 ; GCN-LABEL: name: v_ctpop_i64
35 ; GCN: %[[BCNT1:[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 killed %{{[0-9]+}}, 0, implicit $exec
36 ; GCN: %[[BCNT2:[0-9]+]]:vgpr_32 = V_BCNT_U32_B32_e64 killed %{{[0-9]+}}, killed %[[BCNT1]], implicit $exec
37 ; GCN: %[[VGPR1:[0-9]+]]:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
38 ; GCN: REG_SEQUENCE killed %[[BCNT2]], %subreg.sub0, killed %[[VGPR1]], %subreg.sub1
39 define amdgpu_kernel void @v_ctpop_i64(ptr addrspace(1) noalias %out, ptr addrspace(1) noalias %in) nounwind {
40 %tid = call i32 @llvm.amdgcn.workitem.id.x()
41 %in.gep = getelementptr i64, ptr addrspace(1) %in, i32 %tid
42 %val = load i64, ptr addrspace(1) %in.gep, align 8
43 %ctpop = call i64 @llvm.ctpop.i64(i64 %val) nounwind readnone
44 %truncctpop = trunc i64 %ctpop to i32
45 store i32 %truncctpop, ptr addrspace(1) %out, align 4
49 declare i64 @llvm.ctpop.i64(i64) nounwind readnone
51 declare i32 @llvm.ctpop.i32(i32) nounwind readnone
53 declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone