[PATCH] D43095: Make attribute-target on a Definition-after-use update the LLVM attributes

[Erich Keane via Phabricator via cfe-commits]

erichkeane marked 3 inline comments as done.
erichkeane added inline comments.


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Comment at: lib/CodeGen/CodeGenModule.cpp:1318-1325
+        llvm::AttrBuilder Attrs;
+        if (GetCPUAndFeaturesAttributes(D, Attrs)) {
+          // We know that GetCPUAndFeaturesAttributes will always have the
+          // newest set, since it has the newest possible FunctionDecl, so the
+          // new ones should replace the old.
+          F->removeFnAttr("target-cpu");
+          F->removeFnAttr("target-features");
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echristo wrote:
> This feels awkward here. On a quick glance I'm not sure why we need this if we're adding above... is it possible to delay in such a way that we're not trying to add twice?
I hadn't seen any.  The other call happens only on a declaration, this happens only on definition.  There doesn't really seem to be a way to tell if something is GOING to be defined later, since we often emit the declaration immediately.


Repository:
  rC Clang

https://reviews.llvm.org/D43095