diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMInstrInfo.td | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/llvm/lib/Target/ARM/ARMInstrInfo.td b/llvm/lib/Target/ARM/ARMInstrInfo.td index 3fd27b0e305..d87b526739e 100644 --- a/llvm/lib/Target/ARM/ARMInstrInfo.td +++ b/llvm/lib/Target/ARM/ARMInstrInfo.td @@ -950,9 +950,9 @@ multiclass AI_exta_rrot_np<bits<8> opcod, string opc> { } /// AI1_adde_sube_irs - Define instructions and patterns for adde and sube. -let Uses = [CPSR] in { multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode, - bit Commutable = 0> { + string baseOpc, bit Commutable = 0> { + let Uses = [CPSR] in { def ri : AsI1<opcod, (outs GPR:$Rd), (ins GPR:$Rn, so_imm:$imm), DPFrm, IIC_iALUi, opc, "\t$Rd, $Rn, $imm", [(set GPR:$Rd, (opnode GPR:$Rn, so_imm:$imm))]>, @@ -991,7 +991,24 @@ multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode, let Inst{15-12} = Rd; let Inst{19-16} = Rn; } -} + } + // Assembly aliases for optional destination operand when it's the same + // as the source operand. + def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"), + (!cast<Instruction>(!strconcat(baseOpc, "ri")) GPR:$Rdn, GPR:$Rdn, + so_imm:$imm, pred:$p, + cc_out:$s)>, + Requires<[IsARM]>; + def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $Rm"), + (!cast<Instruction>(!strconcat(baseOpc, "rr")) GPR:$Rdn, GPR:$Rdn, + GPR:$Rm, pred:$p, + cc_out:$s)>, + Requires<[IsARM]>; + def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $shift"), + (!cast<Instruction>(!strconcat(baseOpc, "rs")) GPR:$Rdn, GPR:$Rdn, + so_reg:$shift, pred:$p, + cc_out:$s)>, + Requires<[IsARM]>; } // Carry setting variants @@ -2252,9 +2269,11 @@ defm SUBS : AI1_bin_s_irs<0b0010, "subs", BinOpFrag<(subc node:$LHS, node:$RHS)>>; defm ADC : AI1_adde_sube_irs<0b0101, "adc", - BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>; + BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, + "ADC", 1>; defm SBC : AI1_adde_sube_irs<0b0110, "sbc", - BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>; + BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>, + "SBC">; // ADC and SUBC with 's' bit set. let usesCustomInserter = 1 in { |
