[llvm] [SelectionDAG] Add space-optimized forms of OPC_CheckPredicate (PR #73488)

[Matt Arsenault via llvm-commits]

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@@ -1163,6 +1169,23 @@ class CodeGenDAGPatterns {
     return F->second;
   }
 
+  const std::map<const ComplexPattern *, unsigned> &
+  getComplexPatternUsage() const {
+    return ComplexPatternUsage;
+  }
+
+  void increaseComplexPatternUsage(const ComplexPattern *CP) {
+    ComplexPatternUsage[CP]++;
+  }
+
+  const std::map<TreePattern *, unsigned> &getPredicateUsage() const {
+    return PredicateUsage;
+  }
+
+  void increasePredicateUsage(const TreePredicateFn &Predicate) {
+    PredicateUsage[Predicate.getOrigPatFragRecord()]++;
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arsenm wrote:

Pre-increment 

https://github.com/llvm/llvm-project/pull/73488