[llvm] [MC] Add support for -mcpu=native. (PR #159414)

[Rahul Joshi via llvm-commits]

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@@ -467,6 +467,10 @@ int main(int argc, char **argv) {
     FeaturesStr = Features.getString();
   }
 
+  // Replace -mcpu=native with Host CPU.
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jurahul wrote:

Thanks. Makes sense.

https://github.com/llvm/llvm-project/pull/159414