ComplexPattern<f32, 1, "SelectFPZeroOperand", [fpimm]> {
let ParserMatchClass = fpzero_asmoperand;
let PrintMethod = "printFPZeroOperand";
+ let DecoderMethod = "DecodeFPZeroOperand";
}
def fpz64 : Operand<f64>,
ComplexPattern<f64, 1, "SelectFPZeroOperand", [fpimm]> {
let ParserMatchClass = fpzero_asmoperand;
let PrintMethod = "printFPZeroOperand";
+ let DecoderMethod = "DecodeFPZeroOperand";
}
-multiclass A64I_fpcmpSignal<bits<2> type, bit imm, dag ins, string asmop2,
- dag pattern> {
+multiclass A64I_fpcmpSignal<bits<2> type, bit imm, dag ins, dag pattern> {
def _quiet : A64I_fpcmp<0b0, 0b0, type, 0b00, {0b0, imm, 0b0, 0b0, 0b0},
- (outs), ins, !strconcat("fcmp\t$Rn, ", asmop2),
- [pattern], NoItinerary> {
+ (outs), ins, "fcmp\t$Rn, $Rm", [pattern],
+ NoItinerary> {
let Defs = [NZCV];
}
def _sig : A64I_fpcmp<0b0, 0b0, type, 0b00, {0b1, imm, 0b0, 0b0, 0b0},
- (outs), ins, !strconcat("fcmpe\t$Rn, ", asmop2),
- [], NoItinerary> {
+ (outs), ins, "fcmpe\t$Rn, $Rm", [], NoItinerary> {
let Defs = [NZCV];
}
}
-defm FCMPss : A64I_fpcmpSignal<0b00, 0b0, (ins FPR32:$Rn, FPR32:$Rm), "$Rm",
+defm FCMPss : A64I_fpcmpSignal<0b00, 0b0, (ins FPR32:$Rn, FPR32:$Rm),
(set NZCV, (A64cmp (f32 FPR32:$Rn), FPR32:$Rm))>;
-defm FCMPdd : A64I_fpcmpSignal<0b01, 0b0, (ins FPR64:$Rn, FPR64:$Rm), "$Rm",
+defm FCMPdd : A64I_fpcmpSignal<0b01, 0b0, (ins FPR64:$Rn, FPR64:$Rm),
(set NZCV, (A64cmp (f64 FPR64:$Rn), FPR64:$Rm))>;
-// What would be Rm should be written as 0, but anything is valid for
-// disassembly so we can't set the bits
-let PostEncoderMethod = "fixFCMPImm" in {
- defm FCMPsi : A64I_fpcmpSignal<0b00, 0b1, (ins FPR32:$Rn, fpz32:$Imm), "$Imm",
- (set NZCV, (A64cmp (f32 FPR32:$Rn), fpz32:$Imm))>;
+// What would be Rm should be written as 0; note that even though it's called
+// "$Rm" here to fit in with the InstrFormats, it's actually an immediate.
+defm FCMPsi : A64I_fpcmpSignal<0b00, 0b1, (ins FPR32:$Rn, fpz32:$Rm),
+ (set NZCV, (A64cmp (f32 FPR32:$Rn), fpz32:$Rm))>;
- defm FCMPdi : A64I_fpcmpSignal<0b01, 0b1, (ins FPR64:$Rn, fpz64:$Imm), "$Imm",
- (set NZCV, (A64cmp (f64 FPR64:$Rn), fpz64:$Imm))>;
-}
+defm FCMPdi : A64I_fpcmpSignal<0b01, 0b1, (ins FPR64:$Rn, fpz64:$Rm),
+ (set NZCV, (A64cmp (f64 FPR64:$Rn), fpz64:$Rm))>;
//===----------------------------------------------------------------------===//
void EncodeInstruction(const MCInst &MI, raw_ostream &OS,
SmallVectorImpl<MCFixup> &Fixups) const;
- unsigned fixFCMPImm(const MCInst &MI, unsigned EncodedValue) const;
-
template<int hasRs, int hasRt2> unsigned
fixLoadStoreExclusive(const MCInst &MI, unsigned EncodedValue) const;
return Result | getAddressWithFixup(UImm16MO, requestedFixup, Fixups);
}
-unsigned AArch64MCCodeEmitter::fixFCMPImm(const MCInst &MI,
- unsigned EncodedValue) const {
- // For FCMP[E] Rn, #0.0, the Rm field has a canonical representation
- // with 0s, but is architecturally ignored
- EncodedValue &= ~0x1f0000u;
-
- return EncodedValue;
-}
-
template<int hasRs, int hasRt2> unsigned
AArch64MCCodeEmitter::fixLoadStoreExclusive(const MCInst &MI,
unsigned EncodedValue) const {