1 ; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
3 declare i64 @llvm.ctpop.i64(i64) nounwind readnone
4 declare <2 x i64> @llvm.ctpop.v2i64(<2 x i64>) nounwind readnone
5 declare <4 x i64> @llvm.ctpop.v4i64(<4 x i64>) nounwind readnone
6 declare <8 x i64> @llvm.ctpop.v8i64(<8 x i64>) nounwind readnone
7 declare <16 x i64> @llvm.ctpop.v16i64(<16 x i64>) nounwind readnone
9 ; FUNC-LABEL: @s_ctpop_i64:
10 ; SI: S_LOAD_DWORDX2 [[SVAL:s\[[0-9]+:[0-9]+\]]], s{{\[[0-9]+:[0-9]+\]}}, 0xb
11 ; SI: S_BCNT1_I32_B64 [[SRESULT:s[0-9]+]], [[SVAL]]
12 ; SI: V_MOV_B32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]]
13 ; SI: BUFFER_STORE_DWORD [[VRESULT]],
15 define void @s_ctpop_i64(i32 addrspace(1)* noalias %out, i64 %val) nounwind {
16 %ctpop = call i64 @llvm.ctpop.i64(i64 %val) nounwind readnone
17 %truncctpop = trunc i64 %ctpop to i32
18 store i32 %truncctpop, i32 addrspace(1)* %out, align 4
22 ; FUNC-LABEL: @v_ctpop_i64:
23 ; SI: BUFFER_LOAD_DWORDX2 v{{\[}}[[LOVAL:[0-9]+]]:[[HIVAL:[0-9]+]]{{\]}},
24 ; SI: V_MOV_B32_e32 [[VZERO:v[0-9]+]], 0
25 ; SI: V_BCNT_U32_B32_e32 [[MIDRESULT:v[0-9]+]], v[[LOVAL]], [[VZERO]]
26 ; SI-NEXT: V_BCNT_U32_B32_e32 [[RESULT:v[0-9]+]], v[[HIVAL]], [[MIDRESULT]]
27 ; SI: BUFFER_STORE_DWORD [[RESULT]],
29 define void @v_ctpop_i64(i32 addrspace(1)* noalias %out, i64 addrspace(1)* noalias %in) nounwind {
30 %val = load i64 addrspace(1)* %in, align 8
31 %ctpop = call i64 @llvm.ctpop.i64(i64 %val) nounwind readnone
32 %truncctpop = trunc i64 %ctpop to i32
33 store i32 %truncctpop, i32 addrspace(1)* %out, align 4
37 ; FUNC-LABEL: @s_ctpop_v2i64:
41 define void @s_ctpop_v2i64(<2 x i32> addrspace(1)* noalias %out, <2 x i64> %val) nounwind {
42 %ctpop = call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %val) nounwind readnone
43 %truncctpop = trunc <2 x i64> %ctpop to <2 x i32>
44 store <2 x i32> %truncctpop, <2 x i32> addrspace(1)* %out, align 8
48 ; FUNC-LABEL: @s_ctpop_v4i64:
54 define void @s_ctpop_v4i64(<4 x i32> addrspace(1)* noalias %out, <4 x i64> %val) nounwind {
55 %ctpop = call <4 x i64> @llvm.ctpop.v4i64(<4 x i64> %val) nounwind readnone
56 %truncctpop = trunc <4 x i64> %ctpop to <4 x i32>
57 store <4 x i32> %truncctpop, <4 x i32> addrspace(1)* %out, align 16
61 ; FUNC-LABEL: @v_ctpop_v2i64:
67 define void @v_ctpop_v2i64(<2 x i32> addrspace(1)* noalias %out, <2 x i64> addrspace(1)* noalias %in) nounwind {
68 %val = load <2 x i64> addrspace(1)* %in, align 16
69 %ctpop = call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %val) nounwind readnone
70 %truncctpop = trunc <2 x i64> %ctpop to <2 x i32>
71 store <2 x i32> %truncctpop, <2 x i32> addrspace(1)* %out, align 8
75 ; FUNC-LABEL: @v_ctpop_v4i64:
85 define void @v_ctpop_v4i64(<4 x i32> addrspace(1)* noalias %out, <4 x i64> addrspace(1)* noalias %in) nounwind {
86 %val = load <4 x i64> addrspace(1)* %in, align 32
87 %ctpop = call <4 x i64> @llvm.ctpop.v4i64(<4 x i64> %val) nounwind readnone
88 %truncctpop = trunc <4 x i64> %ctpop to <4 x i32>
89 store <4 x i32> %truncctpop, <4 x i32> addrspace(1)* %out, align 16
93 ; FIXME: We currently disallow SALU instructions in all branches,
94 ; but there are some cases when the should be allowed.
96 ; FUNC-LABEL: @ctpop_i64_in_br
97 ; SI: V_BCNT_U32_B32_e64 [[BCNT_LO:v[0-9]+]], v{{[0-9]+}}, 0
98 ; SI: V_BCNT_U32_B32_e32 v[[BCNT:[0-9]+]], v{{[0-9]+}}, [[BCNT_LO]]
99 ; SI: V_MOV_B32_e32 v[[ZERO:[0-9]+]], 0
100 ; SI: BUFFER_STORE_DWORDX2 v[
101 ; SI: [[BCNT]]:[[ZERO]]]
103 define void @ctpop_i64_in_br(i64 addrspace(1)* %out, i64 addrspace(1)* %in, i32 %cond) {
105 %0 = icmp eq i32 %cond, 0
106 br i1 %0, label %if, label %else
109 %1 = load i64 addrspace(1)* %in
110 %2 = call i64 @llvm.ctpop.i64(i64 %1)
114 %3 = getelementptr i64 addrspace(1)* %in, i32 1
115 %4 = load i64 addrspace(1)* %3
119 %5 = phi i64 [%2, %if], [%4, %else]
120 store i64 %5, i64 addrspace(1)* %out