Lines Matching defs:VReg

295 std::optional<APInt> llvm::getIConstantVRegVal(Register VReg,
298       VReg, MRI, /*LookThroughInstrs*/ false);
299   assert((!ValAndVReg || ValAndVReg->VReg == VReg) &&
307 llvm::getIConstantVRegSExtVal(Register VReg, const MachineRegisterInfo &MRI) {
308   std::optional<APInt> Val = getIConstantVRegVal(VReg, MRI);
329 getConstantVRegValWithLookThrough(Register VReg, const MachineRegisterInfo &MRI,
335   while ((MI = MRI.getVRegDef(VReg)) && !IsConstantOpcode(MI) &&
348       VReg = MI->getOperand(1).getReg();
351       VReg = MI->getOperand(1).getReg();
352       if (VReg.isPhysical())
356       VReg = MI->getOperand(1).getReg();
383   return ValueAndVReg{std::move(Val), VReg};
427     Register VReg, const MachineRegisterInfo &MRI, bool LookThroughInstrs) {
429       VReg, MRI, LookThroughInstrs);
433     Register VReg, const MachineRegisterInfo &MRI, bool LookThroughInstrs,
437       VReg, MRI, LookThroughInstrs, LookThroughAnyExt);
441     Register VReg, const MachineRegisterInfo &MRI, bool LookThroughInstrs) {
444           VReg, MRI, LookThroughInstrs);
447   return FPValueAndVReg{getConstantFPVRegVal(Reg->VReg, MRI)->getValueAPF(),
448                         Reg->VReg};
452 llvm::getConstantFPVRegVal(Register VReg, const MachineRegisterInfo &MRI) {
453   MachineInstr *MI = MRI.getVRegDef(VReg);
1335 std::optional<ValueAndVReg> getAnyConstantSplat(Register VReg,
1338   MachineInstr *MI = getDefIgnoringCopies(VReg, MRI);
1381     return mi_match(SplatValAndReg->VReg, MRI, m_SpecificICst(SplatValue));
1397         getIConstantVRegValWithLookThrough(SplatValAndReg->VReg, MRI))
1415     return getIConstantVRegSExtVal(SplatValAndReg->VReg, MRI);
1426 llvm::getFConstantSplat(Register VReg, const MachineRegisterInfo &MRI,
1428   if (auto SplatValAndReg = getAnyConstantSplat(VReg, MRI, AllowUndef))
1429     return getFConstantVRegValWithLookThrough(SplatValAndReg->VReg, MRI);