[llvm] [llvm-exegesis] Add in snippet address annotation (PR #74218)

[Clement Courbet via llvm-commits]

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@@ -131,6 +131,12 @@ class BenchmarkCodeStreamer : public MCStreamer, public AsmCommentConsumer {
       Result->Key.MemoryMappings.push_back(std::move(MemMap));
       return;
     }
+    if (CommentText.consume_front("SNIPPET-ADDRESS")) {
+      // LLVM-EXEGESIS-SNIPPET-ADDRESS <address>
+      Result->Key.SnippetAddress =
+          std::stol(CommentText.trim().str(), nullptr, 16);
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legrosbuffle wrote:

Please use `llvm::to_integer` so that we can diagnose a bad value.

https://github.com/llvm/llvm-project/pull/74218