================
@@ -182,6 +182,11 @@ class X86RegisterInfo final : public X86GenRegisterInfo {
bool requiresRegisterScavenging(const MachineFunction &MF) const override {
return true;
}
+
+ unsigned getCSRFirstUseCost(const MachineFunction &MF) const override;
+ unsigned getCSRCostScale(const MachineFunction &MF) const override {
+ return 30;
----------------
david-xl wrote:
Add an option to control the scale.
https://github.com/llvm/llvm-project/pull/220090
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