[PATCH] D20178: Fix PR26055 - LiveDebugValues is very slow

[Adrian Prantl via llvm-commits]

aprantl added inline comments.

================
Comment at: lib/CodeGen/LiveDebugValues.cpp:103
@@ +102,3 @@
+      } RegisterLoc;
+      uint64_t Hash;
+    } Loc;
----------------
dberlin wrote:
> Errr, do you really never use the hash and the registerloc at the same time?
> 
The hash is meant to be a convenient alternative view of the the two uint32_t as a single uint64_t. Now that I think of it, I wonder whether that is guaranteed on all imaginable architectures.


http://reviews.llvm.org/D20178