================
@@ -57,6 +57,224 @@ void
RegBankLegalizeHelper::findRuleAndApplyMapping(MachineInstr &MI) {
lower(MI, Mapping, WaterfallSgprs);
}
+bool RegBankLegalizeHelper::executeInWaterfallLoop(
+ MachineIRBuilder &B, iterator_range<MachineBasicBlock::iterator> Range,
+ SmallSet<Register, 4> &SGPROperandRegs) {
+ // Track use registers which have already been expanded with a readfirstlane
+ // sequence. This may have multiple uses if moving a sequence.
+ DenseMap<Register, Register> WaterfalledRegMap;
+
+ MachineBasicBlock &MBB = B.getMBB();
+ MachineFunction &MF = B.getMF();
+
+ const SIRegisterInfo *TRI = ST.getRegisterInfo();
+ const TargetRegisterClass *WaveRC = TRI->getWaveMaskRegClass();
+ unsigned MovExecOpc, MovExecTermOpc, XorTermOpc, AndSaveExecOpc, ExecReg;
+ if (IsWave32) {
----------------
Pierre-vh wrote:
I know I already asked but I lost track of it; why can't we put those as fields
in the class?
https://github.com/llvm/llvm-project/pull/145912
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