================
@@ -68,20 +70,72 @@ class DummyPriorityAdvisor : public RegAllocPriorityAdvisor
{
unsigned getPriority(const LiveInterval &LI) const override;
};
-class RegAllocPriorityAdvisorAnalysis : public ImmutablePass {
+/// Common provider for getting the priority advisor and logging rewards.
+/// Legacy analysis forwards all calls to this provider.
+/// New analysis serves the provider as the analysis result.
+/// Expensive setup is done in the constructor, so that the advisor can be
+/// created quickly for every machine function.
+/// TODO: Remove once legacy PM support is dropped.
+class RegAllocPriorityAdvisorProvider {
public:
enum class AdvisorMode : int { Default, Release, Development, Dummy };
- RegAllocPriorityAdvisorAnalysis(AdvisorMode Mode)
- : ImmutablePass(ID), Mode(Mode){};
+ RegAllocPriorityAdvisorProvider(AdvisorMode Mode) : Mode(Mode) {}
+
+ virtual ~RegAllocPriorityAdvisorProvider() = default;
+
+ virtual void logRewardIfNeeded(const MachineFunction &MF,
+ function_ref<float()> GetReward) {};
+
+ virtual std::unique_ptr<RegAllocPriorityAdvisor>
+ getAdvisor(const MachineFunction &MF, const RAGreedy &RA,
+ SlotIndexes *SI) = 0;
----------------
arsenm wrote:
Make SI a reference, it is required
https://github.com/llvm/llvm-project/pull/118462
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