diff options
Diffstat (limited to 'lib/Target/ARM/ARMInstrInfo.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index 45cee48..b4677f0 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -572,23 +572,35 @@ let isBranch = 1, isTerminator = 1 in { [(br bb:$target)]>; let isNotDuplicable = 1, isIndirectBranch = 1 in { - def BR_JTr : JTI<0b1101, (outs), - (ins GPR:$target, jtblock_operand:$jt, i32imm:$id), + def BR_JTr : JTI<(outs), (ins GPR:$target, jtblock_operand:$jt, i32imm:$id), "mov pc, $target \n$jt", - [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]>; - def BR_JTm : JTI2<0, (outs), - (ins addrmode2:$target, jtblock_operand:$jt, i32imm:$id), - "ldr pc, $target \n$jt", - [(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt, - imm:$id)]>; - def BR_JTadd : JTI1<0b0100, (outs), - (ins GPR:$target, GPR:$idx, jtblock_operand:$jt, - i32imm:$id), - "add pc, $target, $idx \n$jt", - [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt, - imm:$id)]>; + [(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]> { + let Inst{20} = 0; // S Bit + let Inst{24-21} = 0b1101; + let Inst{27-26} = {0,0}; } + def BR_JTm : JTI<(outs), + (ins addrmode2:$target, jtblock_operand:$jt, i32imm:$id), + "ldr pc, $target \n$jt", + [(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt, + imm:$id)]> { + let Inst{20} = 1; // L bit + let Inst{21} = 0; // W bit + let Inst{22} = 0; // B bit + let Inst{24} = 1; // P bit + let Inst{27-26} = {0,1}; } + def BR_JTadd : JTI<(outs), + (ins GPR:$target, GPR:$idx, jtblock_operand:$jt, i32imm:$id), + "add pc, $target, $idx \n$jt", + [(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt, + imm:$id)]> { + let Inst{20} = 0; // S bit + let Inst{24-21} = 0b0100; + let Inst{27-26} = {0,0}; + } + } // isNotDuplicable = 1, isIndirectBranch = 1 + } // isBarrier = 1 // FIXME: should be able to write a pattern for ARMBrcond, but can't use // a two-value operand where a dag node expects two operands. :( |