[Coverage] Make `MCDCRecord::Folded` as `[false/true]` with BitVector. NFC. (#121190)

For merging `MCDCRecord`s, `Folded` is expected to be promoted as
"Non-folded".

1 files changed, 6 insertions, 5 deletions

diff --git a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
index 1bf2e8d..f95e311 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -392,8 +392,9 @@ public:
       : NextIDsBuilder(Branches), TVIdxBuilder(this->NextIDs), Bitmap(Bitmap),
         Region(Region), DecisionParams(Region.getDecisionParams()),
         Branches(Branches), NumConditions(DecisionParams.NumConditions),
-        Folded(NumConditions, false), IndependencePairs(NumConditions),
-        ExecVectors(ExecVectorsByCond[false]), IsVersion11(IsVersion11) {}
+        Folded{{BitVector(NumConditions), BitVector(NumConditions)}},
+        IndependencePairs(NumConditions), ExecVectors(ExecVectorsByCond[false]),
+        IsVersion11(IsVersion11) {}
 
 private:
   // Walk the binary decision diagram and try assigning both false and true to
@@ -485,7 +486,6 @@ public:
   /// location is also tracked, as well as whether it is constant folded (in
   /// which case it is excuded from the metric).
   MCDCRecord processMCDCRecord() {
-    unsigned I = 0;
     MCDCRecord::CondIDMap PosToID;
     MCDCRecord::LineColPairMap CondLoc;
 
@@ -499,11 +499,12 @@ public:
     //   visualize where the condition is.
     // - Record whether the condition is constant folded so that we exclude it
     //   from being measured.
-    for (const auto *B : Branches) {
+    for (auto [I, B] : enumerate(Branches)) {
       const auto &BranchParams = B->getBranchParams();
       PosToID[I] = BranchParams.ID;
       CondLoc[I] = B->startLoc();
-      Folded[I++] = (B->Count.isZero() || B->FalseCount.isZero());
+      Folded[false][I] = B->FalseCount.isZero();
+      Folded[true][I] = B->Count.isZero();
     }
 
     // Using Profile Bitmap from runtime, mark the executed test vectors.