[llvm] [IR2Vec] Exposing Embedding as an ADT wrapped around std::vector<double> (PR #143197)

[Mircea Trofin via llvm-commits]

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@@ -55,6 +55,40 @@ static cl::opt<float> ArgWeight("ir2vec-arg-weight", cl::Optional,
 
 AnalysisKey IR2VecVocabAnalysis::Key;
 
+// ==----------------------------------------------------------------------===//
+// Embedding
+//===----------------------------------------------------------------------===//
+
+Embedding &Embedding::operator+=(const Embedding &RHS) {
+  assert(this->size() == RHS.size() && "Vectors must have the same dimension");
+  std::transform(this->begin(), this->end(), RHS.begin(), this->begin(),
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mtrofin wrote:

was going to suggest `llvm::transform` but looks like there's no overload for this

https://github.com/llvm/llvm-project/pull/143197