diff options
Diffstat (limited to 'lib/Target/ARM/ARMInstrVFP.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrVFP.td | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMInstrVFP.td b/lib/Target/ARM/ARMInstrVFP.td index b5a896c699..2380528e13 100644 --- a/lib/Target/ARM/ARMInstrVFP.td +++ b/lib/Target/ARM/ARMInstrVFP.td @@ -224,7 +224,36 @@ defm : VFPDTAnyInstAlias<"vpop${p}", "$r", defm : VFPDTAnyInstAlias<"vpop${p}", "$r", (VLDMDIA_UPD SP, pred:$p, dpr_reglist:$r)>; -// FLDMX, FSTMX - mixing S/D registers for pre-armv6 cores +// FLDMX, FSTMX - Load and store multiple unknown precision registers for +// pre-armv6 cores. +// These instruction are deprecated so we don't want them to get selected. +multiclass vfp_ldstx_mult<string asm, bit L_bit> { + // Unknown precision + def XIA : + AXXI4<(outs), (ins GPR:$Rn, pred:$p, dpr_reglist:$regs, variable_ops), + IndexModeNone, !strconcat(asm, "iax${p}\t$Rn, $regs"), "", []> { + let Inst{24-23} = 0b01; // Increment After + let Inst{21} = 0; // No writeback + let Inst{20} = L_bit; + } + def XIA_UPD : + AXXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, dpr_reglist:$regs, variable_ops), + IndexModeUpd, !strconcat(asm, "iax${p}\t$Rn!, $regs"), "$Rn = $wb", []> { + let Inst{24-23} = 0b01; // Increment After + let Inst{21} = 1; // Writeback + let Inst{20} = L_bit; + } + def XDB_UPD : + AXXI4<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, dpr_reglist:$regs, variable_ops), + IndexModeUpd, !strconcat(asm, "dbx${p}\t$Rn!, $regs"), "$Rn = $wb", []> { + let Inst{24-23} = 0b10; // Decrement Before + let Inst{21} = 1; + let Inst{20} = L_bit; + } +} + +defm FLDM : vfp_ldstx_mult<"fldm", 1>; +defm FSTM : vfp_ldstx_mult<"fstm", 0>; //===----------------------------------------------------------------------===// // FP Binary Operations. |