================
@@ -56,20 +58,80 @@ class DefaultPriorityAdvisor : 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 };
- RegAllocPriorityAdvisorAnalysis(AdvisorMode Mode)
- : ImmutablePass(ID), Mode(Mode){};
- static char ID;
+ RegAllocPriorityAdvisorProvider(AdvisorMode Mode) : Mode(Mode) {}
+
+ virtual ~RegAllocPriorityAdvisorProvider() = default;
+
+ virtual void logRewardIfNeeded(const MachineFunction &MF,
+ llvm::function_ref<float()> GetReward) {};
----------------
arsenm wrote:
```suggestion
function_ref<float()> GetReward) {};
```
https://github.com/llvm/llvm-project/pull/118462
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