[PATCH] D45308: [IPRA] Do not collect register usage information on functions that can be derefined

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added inline comments.


================
Comment at: llvm/lib/CodeGen/RegUsageInfoCollector.cpp:104-105
 
+ if (!F.isDefinitionExact())
+    return false;
+
----------------
Maybe add a comment that this is a shortcut as the result won't get used?


https://reviews.llvm.org/D45308