Index: llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp +++ llvm/trunk/lib/Target/AMDGPU/SIISelLowering.cpp @@ -361,6 +361,7 @@ setOperationAction(ISD::CTTZ_ZERO_UNDEF, MVT::i16, Promote); setOperationAction(ISD::CTLZ, MVT::i16, Promote); setOperationAction(ISD::CTLZ_ZERO_UNDEF, MVT::i16, Promote); + setOperationAction(ISD::CTPOP, MVT::i16, Promote); setOperationAction(ISD::SELECT_CC, MVT::i16, Expand); Index: llvm/trunk/lib/Target/AMDGPU/SIInstructions.td =================================================================== --- llvm/trunk/lib/Target/AMDGPU/SIInstructions.td +++ llvm/trunk/lib/Target/AMDGPU/SIInstructions.td @@ -726,6 +726,10 @@ (i32 (add (i32 (ctpop i32:$popcnt)), i32:$val)), (V_BCNT_U32_B32_e64 $popcnt, $val) >; +def : GCNPat < + (i16 (add (i16 (trunc (ctpop i32:$popcnt))), i16:$val)), + (V_BCNT_U32_B32_e64 $popcnt, $val) +>; /********** ============================================ **********/ /********** Extraction, Insertion, Building and Casting **********/ Index: llvm/trunk/test/CodeGen/AMDGPU/ctpop16.ll =================================================================== --- llvm/trunk/test/CodeGen/AMDGPU/ctpop16.ll +++ llvm/trunk/test/CodeGen/AMDGPU/ctpop16.ll @@ -0,0 +1,334 @@ +; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=FUNC -check-prefix=SI %s +; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=GCN -check-prefix=FUNC -check-prefix=VI %s +; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefix=EG -check-prefix=FUNC %s + +declare i16 @llvm.ctpop.i16(i16) nounwind readnone +declare <2 x i16> @llvm.ctpop.v2i16(<2 x i16>) nounwind readnone +declare <4 x i16> @llvm.ctpop.v4i16(<4 x i16>) nounwind readnone +declare <8 x i16> @llvm.ctpop.v8i16(<8 x i16>) nounwind readnone +declare <16 x i16> @llvm.ctpop.v16i16(<16 x i16>) nounwind readnone + +declare i32 @llvm.r600.read.tidig.x() nounwind readnone + +; FUNC-LABEL: {{^}}s_ctpop_i16: +; GCN: s_load_dword [[SVAL:s[0-9]+]], +; GCN: s_bcnt1_i32_b32 [[SRESULT:s[0-9]+]], [[SVAL]] +; GCN: v_mov_b32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]] +; GCN: buffer_store_short [[VRESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @s_ctpop_i16(i16 addrspace(1)* noalias %out, i16 %val) nounwind { + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + store i16 %ctpop, i16 addrspace(1)* %out, align 4 + ret void +} + +; XXX - Why 0 in register? +; FUNC-LABEL: {{^}}v_ctpop_i16: +; GCN: {{buffer|flat}}_load_ushort [[VAL:v[0-9]+]], +; GCN: v_bcnt_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]], [[VAL]], 0 +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_i16(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + store i16 %ctpop, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_add_chain_i16: +; SI: buffer_load_ushort [[VAL0:v[0-9]+]], +; SI: buffer_load_ushort [[VAL1:v[0-9]+]], +; VI: flat_load_ushort [[VAL0:v[0-9]+]], +; VI: flat_load_ushort [[VAL1:v[0-9]+]], +; GCN: v_bcnt_u32_b32{{(_e64)*}} [[MIDRESULT:v[0-9]+]], [[VAL1]], 0 +; SI: v_bcnt_u32_b32_e32 [[RESULT:v[0-9]+]], [[VAL0]], [[MIDRESULT]] +; VI: v_bcnt_u32_b32 [[RESULT:v[0-9]+]], [[VAL0]], [[MIDRESULT]] +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_add_chain_i16(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in0, i16 addrspace(1)* noalias %in1) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in0.gep = getelementptr i16, i16 addrspace(1)* %in0, i32 %tid + %in1.gep = getelementptr i16, i16 addrspace(1)* %in1, i32 %tid + %val0 = load volatile i16, i16 addrspace(1)* %in0.gep, align 4 + %val1 = load volatile i16, i16 addrspace(1)* %in1.gep, align 4 + %ctpop0 = call i16 @llvm.ctpop.i16(i16 %val0) nounwind readnone + %ctpop1 = call i16 @llvm.ctpop.i16(i16 %val1) nounwind readnone + %add = add i16 %ctpop0, %ctpop1 + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_add_sgpr_i16: +; GCN: {{buffer|flat}}_load_ushort [[VAL0:v[0-9]+]], +; GCN: s_waitcnt +; GCN-NEXT: v_bcnt_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]], [[VAL0]], s{{[0-9]+}} +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm +define amdgpu_kernel void @v_ctpop_add_sgpr_i16(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in, i16 %sval) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %add = add i16 %ctpop, %sval + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_v2i16: +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: s_endpgm + +; EG: BCNT_INT +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_v2i16(<2 x i16> addrspace(1)* noalias %out, <2 x i16> addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr <2 x i16>, <2 x i16> addrspace(1)* %in, i32 %tid + %val = load <2 x i16>, <2 x i16> addrspace(1)* %in.gep, align 8 + %ctpop = call <2 x i16> @llvm.ctpop.v2i16(<2 x i16> %val) nounwind readnone + store <2 x i16> %ctpop, <2 x i16> addrspace(1)* %out, align 8 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_v4i16: +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: s_endpgm + +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_v4i16(<4 x i16> addrspace(1)* noalias %out, <4 x i16> addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr <4 x i16>, <4 x i16> addrspace(1)* %in, i32 %tid + %val = load <4 x i16>, <4 x i16> addrspace(1)* %in.gep, align 16 + %ctpop = call <4 x i16> @llvm.ctpop.v4i16(<4 x i16> %val) nounwind readnone + store <4 x i16> %ctpop, <4 x i16> addrspace(1)* %out, align 16 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_v8i16: +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: s_endpgm + +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_v8i16(<8 x i16> addrspace(1)* noalias %out, <8 x i16> addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr <8 x i16>, <8 x i16> addrspace(1)* %in, i32 %tid + %val = load <8 x i16>, <8 x i16> addrspace(1)* %in.gep, align 32 + %ctpop = call <8 x i16> @llvm.ctpop.v8i16(<8 x i16> %val) nounwind readnone + store <8 x i16> %ctpop, <8 x i16> addrspace(1)* %out, align 32 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_v16i16: +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: v_bcnt_u32_b32{{(_e64)*}} +; GCN: s_endpgm + +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_v16i16(<16 x i16> addrspace(1)* noalias %out, <16 x i16> addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr <16 x i16>, <16 x i16> addrspace(1)* %in, i32 %tid + %val = load <16 x i16>, <16 x i16> addrspace(1)* %in.gep, align 32 + %ctpop = call <16 x i16> @llvm.ctpop.v16i16(<16 x i16> %val) nounwind readnone + store <16 x i16> %ctpop, <16 x i16> addrspace(1)* %out, align 32 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_i16_add_inline_constant: +; GCN: {{buffer|flat}}_load_ushort [[VAL:v[0-9]+]], +; GCN: v_bcnt_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]], [[VAL]], 4 +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_i16_add_inline_constant(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %add = add i16 %ctpop, 4 + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_i16_add_inline_constant_inv: +; GCN: {{buffer|flat}}_load_ushort [[VAL:v[0-9]+]], +; GCN: v_bcnt_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]], [[VAL]], 4 +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_i16_add_inline_constant_inv(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %add = add i16 4, %ctpop + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_i16_add_literal: +; GCN-DAG: {{buffer|flat}}_load_ushort [[VAL:v[0-9]+]], +; SI-DAG: v_mov_b32_e32 [[LIT:v[0-9]+]], 0x3e7 +; VI-DAG: s_movk_i32 [[LIT:s[0-9]+]], 0x3e7 +; SI: v_bcnt_u32_b32_e32 [[RESULT:v[0-9]+]], [[VAL]], [[LIT]] +; VI: v_bcnt_u32_b32 [[RESULT:v[0-9]+]], [[VAL]], [[LIT]] +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm +define amdgpu_kernel void @v_ctpop_i16_add_literal(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %add = add i16 %ctpop, 999 + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_i16_add_var: +; GCN-DAG: {{buffer|flat}}_load_ushort [[VAL:v[0-9]+]], +; GCN-DAG: s_load_dword [[VAR:s[0-9]+]], +; GCN: v_bcnt_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]], [[VAL]], [[VAR]] +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_i16_add_var(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in, i16 %const) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %add = add i16 %ctpop, %const + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_i16_add_var_inv: +; GCN-DAG: {{buffer|flat}}_load_ushort [[VAL:v[0-9]+]], +; GCN-DAG: s_load_dword [[VAR:s[0-9]+]], +; GCN: v_bcnt_u32_b32{{(_e64)*}} [[RESULT:v[0-9]+]], [[VAL]], [[VAR]] +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_i16_add_var_inv(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in, i16 %const) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %add = add i16 %const, %ctpop + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FUNC-LABEL: {{^}}v_ctpop_i16_add_vvar_inv: +; SI: buffer_load_ushort [[VAR:v[0-9]+]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 +; SI: buffer_load_ushort [[VAL:v[0-9]+]], v[{{[0-9]+:[0-9]+}}], s[{{[0-9]+:[0-9]+}}], 0 addr64 +; SI: v_bcnt_u32_b32_e32 [[RESULT:v[0-9]+]], [[VAR]], [[VAL]] +; VI: flat_load_ushort [[VAR:v[0-9]+]], v[{{[0-9]+:[0-9]+}}] +; VI: flat_load_ushort [[VAL:v[0-9]+]], v[{{[0-9]+:[0-9]+}}] +; VI: v_bcnt_u32_b32 [[RESULT:v[0-9]+]], [[VAL]], [[VAR]] +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm + +; EG: BCNT_INT +define amdgpu_kernel void @v_ctpop_i16_add_vvar_inv(i16 addrspace(1)* noalias %out, i16 addrspace(1)* noalias %in, i16 addrspace(1)* noalias %constptr) nounwind { + %tid = call i32 @llvm.r600.read.tidig.x() + %in.gep = getelementptr i16, i16 addrspace(1)* %in, i32 %tid + %val = load i16, i16 addrspace(1)* %in.gep, align 4 + %ctpop = call i16 @llvm.ctpop.i16(i16 %val) nounwind readnone + %gep = getelementptr i16, i16 addrspace(1)* %constptr, i32 %tid + %const = load i16, i16 addrspace(1)* %gep, align 4 + %add = add i16 %const, %ctpop + store i16 %add, i16 addrspace(1)* %out, align 4 + ret void +} + +; FIXME: We currently disallow SALU instructions in all branches, +; but there are some cases when the should be allowed. + +; FUNC-LABEL: {{^}}ctpop_i16_in_br: +; SI: s_load_dword [[VAL:s[0-9]+]], s[{{[0-9]+:[0-9]+}}], 0xd +; VI: s_load_dword [[VAL:s[0-9]+]], s[{{[0-9]+:[0-9]+}}], 0x34 +; GCN: s_bcnt1_i32_b32 [[SRESULT:s[0-9]+]], [[VAL]] +; GCN: v_mov_b32_e32 [[RESULT:v[0-9]+]], [[SRESULT]] +; GCN: buffer_store_short [[RESULT]], +; GCN: s_endpgm +; EG: BCNT_INT +define amdgpu_kernel void @ctpop_i16_in_br(i16 addrspace(1)* %out, i16 addrspace(1)* %in, i16 %ctpop_arg, i16 %cond) { +entry: + %tmp0 = icmp eq i16 %cond, 0 + br i1 %tmp0, label %if, label %else + +if: + %tmp2 = call i16 @llvm.ctpop.i16(i16 %ctpop_arg) + br label %endif + +else: + %tmp3 = getelementptr i16, i16 addrspace(1)* %in, i16 1 + %tmp4 = load i16, i16 addrspace(1)* %tmp3 + br label %endif + +endif: + %tmp5 = phi i16 [%tmp2, %if], [%tmp4, %else] + store i16 %tmp5, i16 addrspace(1)* %out + ret void +}