[llvm-branch-commits] [clang] [llvm] [Coverage] Make additional counters available for BranchRegion. NFC. (PR #120930)

[NAKAMURA Takumi via llvm-branch-commits]

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@@ -940,15 +939,35 @@ struct CounterCoverageMappingBuilder
 
   std::pair<Counter, Counter> getBranchCounterPair(const Stmt *S,
                                                    Counter ParentCnt) {
-    Counter ExecCnt = getRegionCounter(S);
-    return {ExecCnt, Builder.subtract(ParentCnt, ExecCnt)};
+    auto &TheMap = CounterMap[S];
+    auto ExecCnt = Counter::getCounter(TheMap.first);
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chapuni wrote:

I guess it assumes `S` always hit. The logic is similar to the current implementation.

`TheMap` will be allocated with an initial value if `S` doesn't hit. We can introduce more strict checks.

https://github.com/llvm/llvm-project/pull/120930