[PATCH] D36351: [lld][ELF] Add profile guided section layout

[Rui Ueyama via Phabricator via llvm-commits]

ruiu added a comment.

How can I test this? I wonder how to create profiling data to feed this feature.



================
Comment at: ELF/Writer.cpp:927
+  if (!Config->CallGraphProfile.empty()) {
+    llvm::DenseMap<const InputSectionBase *, int> OrderMap =
+        computeCallGraphProfileOrder();
----------------
Remove `llvm::`


================
Comment at: ELF/Writer.cpp:930-936
+    for (BaseCommand *Base : Script->Opt.Commands) {
+      auto *OS = dyn_cast<OutputSection>(Base);
+      if (!OS || OS->Name != ".text")
+        continue;
+      OS->sort([&](InputSectionBase *IS) { return OrderMap.lookup(IS); });
+      break;
+    }
----------------
    for (BaseCommand *Base : Script->Opt.Commands)
      if (auto *OS = dyn_cast<OutputSection>(Base))
        if (OS->Name == ".text")
          OS->sort([&](InputSectionBase *IS) { return OrderMap.lookup(IS); });


Repository:
  rL LLVM

https://reviews.llvm.org/D36351