diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrFormats.td | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64InstrFormats.td b/llvm/lib/Target/AArch64/AArch64InstrFormats.td index 4e935bdc1ad..df6a63ba6fa 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrFormats.td +++ b/llvm/lib/Target/AArch64/AArch64InstrFormats.td @@ -1173,16 +1173,23 @@ def pstatefield4_op : Operand<i32> { let PrintMethod = "printSystemPStateField"; } +// Instructions to modify PSTATE, no input reg let Defs = [NZCV] in +class PstateWriteSimple<dag iops, string asm, string operands> + : SimpleSystemI<0, iops, asm, operands> { + + let Inst{20-19} = 0b00; + let Inst{15-12} = 0b0100; +} + class MSRpstateImm0_15 - : SimpleSystemI<0, (ins pstatefield4_op:$pstatefield, imm0_15:$imm), - "msr", "\t$pstatefield, $imm">, + : PstateWriteSimple<(ins pstatefield4_op:$pstatefield, imm0_15:$imm), "msr", + "\t$pstatefield, $imm">, Sched<[WriteSys]> { + bits<6> pstatefield; bits<4> imm; - let Inst{20-19} = 0b00; let Inst{18-16} = pstatefield{5-3}; - let Inst{15-12} = 0b0100; let Inst{11-8} = imm; let Inst{7-5} = pstatefield{2-0}; @@ -1201,16 +1208,15 @@ def pstatefield1_op : Operand<i32> { let PrintMethod = "printSystemPStateField"; } -let Defs = [NZCV] in class MSRpstateImm0_1 - : SimpleSystemI<0, (ins pstatefield1_op:$pstatefield, imm0_1:$imm), - "msr", "\t$pstatefield, $imm">, + : PstateWriteSimple<(ins pstatefield1_op:$pstatefield, imm0_1:$imm), "msr", + "\t$pstatefield, $imm">, Sched<[WriteSys]> { + bits<6> pstatefield; bit imm; - let Inst{20-19} = 0b00; let Inst{18-16} = pstatefield{5-3}; - let Inst{15-9} = 0b0100000; + let Inst{11-9} = 0b000; let Inst{8} = imm; let Inst{7-5} = pstatefield{2-0}; |
