Index: lib/Target/AMDGPU/AMDGPUInstructions.td =================================================================== --- lib/Target/AMDGPU/AMDGPUInstructions.td +++ lib/Target/AMDGPU/AMDGPUInstructions.td @@ -72,6 +72,40 @@ def brtarget : Operand; //===----------------------------------------------------------------------===// +// Misc. PatFrags +//===----------------------------------------------------------------------===// + +class HasOneUseBinOp : PatFrag< + (ops node:$src0, node:$src1), + (op $src0, $src1), + [{ return N->hasOneUse(); }] +>; + +class HasOneUseTernaryOp : PatFrag< + (ops node:$src0, node:$src1, node:$src2), + (op $src0, $src1, $src2), + [{ return N->hasOneUse(); }] +>; + + +let Properties = [SDNPCommutative, SDNPAssociative] in { +def smax_oneuse : HasOneUseBinOp; +def smin_oneuse : HasOneUseBinOp; +def umax_oneuse : HasOneUseBinOp; +def umin_oneuse : HasOneUseBinOp; +def fminnum_oneuse : HasOneUseBinOp; +def fmaxnum_oneuse : HasOneUseBinOp; +def and_oneuse : HasOneUseBinOp; +def or_oneuse : HasOneUseBinOp; +def xor_oneuse : HasOneUseBinOp; +} // Properties = [SDNPCommutative, SDNPAssociative] + +def sub_oneuse : HasOneUseBinOp; +def shl_oneuse : HasOneUseBinOp; + +def select_oneuse : HasOneUseTernaryOp; - // Special conversion patterns def cvt_rpi_i32_f32 : PatFrag < Index: lib/Target/AMDGPU/EvergreenInstructions.td =================================================================== --- lib/Target/AMDGPU/EvergreenInstructions.td +++ lib/Target/AMDGPU/EvergreenInstructions.td @@ -388,7 +388,7 @@ VecALU >; -def : BFEPattern ; +defm : BFEPattern ; def BFI_INT_eg : R600_3OP <0x06, "BFI_INT", [(set i32:$dst, (AMDGPUbfi i32:$src0, i32:$src1, i32:$src2))], Index: lib/Target/AMDGPU/SIInstructions.td =================================================================== --- lib/Target/AMDGPU/SIInstructions.td +++ lib/Target/AMDGPU/SIInstructions.td @@ -1069,8 +1069,7 @@ defm : BFMPatterns ; // FIXME: defm : BFMPatterns ; - -def : BFEPattern ; +defm : BFEPattern ; def : Pat< (fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))), Index: test/CodeGen/AMDGPU/bfe-patterns.ll =================================================================== --- /dev/null +++ test/CodeGen/AMDGPU/bfe-patterns.ll @@ -0,0 +1,163 @@ +; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s +; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s + +; GCN-LABEL: {{^}}v_ubfe_sub_i32: +; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]] +; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]] +; GCN: v_bfe_u32 v{{[0-9]+}}, [[SRC]], 0, [[WIDTH]] +define void @v_ubfe_sub_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x + %in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %src = load volatile i32, i32 addrspace(1)* %in0.gep + %width = load volatile i32, i32 addrspace(1)* %in0.gep + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = lshr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + ret void +} + +; GCN-LABEL: {{^}}v_ubfe_sub_multi_use_shl_i32: +; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]] +; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]] +; GCN: v_sub_i32_e32 [[SUB:v[0-9]+]], vcc, 32, [[WIDTH]] + +; SI-NEXT: v_lshl_b32_e32 [[SHL:v[0-9]+]], [[SRC]], [[SUB]] +; SI-NEXT: v_lshr_b32_e32 [[BFE:v[0-9]+]], [[SHL]], [[SUB]] + +; VI-NEXT: v_lshlrev_b32_e32 [[SHL:v[0-9]+]], [[SUB]], [[SRC]] +; VI-NEXT: v_lshrrev_b32_e32 [[BFE:v[0-9]+]], [[SUB]], [[SHL]] + +; GCN: [[BFE]] +; GCN: [[SHL]] +define void @v_ubfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x + %in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %src = load volatile i32, i32 addrspace(1)* %in0.gep + %width = load volatile i32, i32 addrspace(1)* %in0.gep + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = lshr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + store volatile i32 %shl, i32 addrspace(1)* undef + ret void +} + +; GCN-LABEL: {{^}}s_ubfe_sub_i32: +; GCN: s_load_dword [[SRC:s[0-9]+]] +; GCN: s_load_dword [[WIDTH:s[0-9]+]] +; GCN: v_mov_b32_e32 [[VWIDTH:v[0-9]+]] +; GCN: v_bfe_u32 v{{[0-9]+}}, [[SRC]], 0, [[VWIDTH]] +define void @s_ubfe_sub_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = lshr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + ret void +} + +; GCN-LABEL: {{^}}s_ubfe_sub_multi_use_shl_i32: +; GCN: s_load_dword [[SRC:s[0-9]+]] +; GCN: s_load_dword [[WIDTH:s[0-9]+]] +; GCN: s_sub_i32 [[SUB:s[0-9]+]], 32, [[WIDTH]] +; GCN-NEXT: s_lshl_b32 [[SHL:s[0-9]+]], [[SRC]], [[SUB]] +; GCN-NEXT: s_lshr_b32 s{{[0-9]+}}, [[SHL]], [[SUB]] +define void @s_ubfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = lshr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + store volatile i32 %shl, i32 addrspace(1)* undef + ret void +} + +; GCN-LABEL: {{^}}v_sbfe_sub_i32: +; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]] +; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]] +; GCN: v_bfe_i32 v{{[0-9]+}}, [[SRC]], 0, [[WIDTH]] +define void @v_sbfe_sub_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x + %in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %src = load volatile i32, i32 addrspace(1)* %in0.gep + %width = load volatile i32, i32 addrspace(1)* %in0.gep + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = ashr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + ret void +} + +; GCN-LABEL: {{^}}v_sbfe_sub_multi_use_shl_i32: +; GCN: {{buffer|flat}}_load_dword [[SRC:v[0-9]+]] +; GCN: {{buffer|flat}}_load_dword [[WIDTH:v[0-9]+]] +; GCN: v_sub_i32_e32 [[SUB:v[0-9]+]], vcc, 32, [[WIDTH]] + +; SI-NEXT: v_lshl_b32_e32 [[SHL:v[0-9]+]], [[SRC]], [[SUB]] +; SI-NEXT: v_ashr_i32_e32 [[BFE:v[0-9]+]], [[SHL]], [[SUB]] + +; VI-NEXT: v_lshlrev_b32_e32 [[SHL:v[0-9]+]], [[SUB]], [[SRC]] +; VI-NEXT: v_ashrrev_i32_e32 [[BFE:v[0-9]+]], [[SUB]], [[SHL]] + +; GCN: [[BFE]] +; GCN: [[SHL]] +define void @v_sbfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 addrspace(1)* %in0, i32 addrspace(1)* %in1) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %in0.gep = getelementptr i32, i32 addrspace(1)* %in0, i32 %id.x + %in1.gep = getelementptr i32, i32 addrspace(1)* %in1, i32 %id.x + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %src = load volatile i32, i32 addrspace(1)* %in0.gep + %width = load volatile i32, i32 addrspace(1)* %in0.gep + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = ashr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + store volatile i32 %shl, i32 addrspace(1)* undef + ret void +} + +; GCN-LABEL: {{^}}s_sbfe_sub_i32: +; GCN: s_load_dword [[SRC:s[0-9]+]] +; GCN: s_load_dword [[WIDTH:s[0-9]+]] +; GCN: v_mov_b32_e32 [[VWIDTH:v[0-9]+]] +; GCN: v_bfe_i32 v{{[0-9]+}}, [[SRC]], 0, [[VWIDTH]] +define void @s_sbfe_sub_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = ashr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + ret void +} + +; GCN-LABEL: {{^}}s_sbfe_sub_multi_use_shl_i32: +; GCN: s_load_dword [[SRC:s[0-9]+]] +; GCN: s_load_dword [[WIDTH:s[0-9]+]] +; GCN: s_sub_i32 [[SUB:s[0-9]+]], 32, [[WIDTH]] +; GCN-NEXT: s_lshl_b32 [[SHL:s[0-9]+]], [[SRC]], [[SUB]] +; GCN-NEXT: s_ashr_i32 s{{[0-9]+}}, [[SHL]], [[SUB]] +define void @s_sbfe_sub_multi_use_shl_i32(i32 addrspace(1)* %out, i32 %src, i32 %width) #1 { + %id.x = tail call i32 @llvm.amdgcn.workitem.id.x() + %out.gep = getelementptr i32, i32 addrspace(1)* %out, i32 %id.x + %sub = sub i32 32, %width + %shl = shl i32 %src, %sub + %bfe = ashr i32 %shl, %sub + store i32 %bfe, i32 addrspace(1)* %out.gep + store volatile i32 %shl, i32 addrspace(1)* undef + ret void +} + +declare i32 @llvm.amdgcn.workitem.id.x() #0 + +attributes #0 = { nounwind readnone } +attributes #1 = { nounwind }