[PATCH] Rename AtomicExpandLoadLinked into AtomicExpand (NFC)

[Tim Northover]

Hi Robin,

I think this is mostly straightforward. I've just got one comment on the command-line option we end up with.

Cheers.

Tim.

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Comment at: lib/CodeGen/AtomicExpandPass.cpp:55
@@ +54,3 @@
+char &llvm::AtomicExpandID = AtomicExpand::ID;
+INITIALIZE_TM_PASS(AtomicExpand, "atomic",
+    "Expand Atomic calls in terms of either load-linked & store-conditional or cmpxchg",
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I think "-atomic" is too generic as an option name. It should probably be "-atomic-expand" or something.

Actually "-lower-atomic" would probably be even better but it's already taken by another pass which just replaces all atomic ops with non-atomic ones. Bonus points for coming up with a simple but obvious naming distinction there.

http://reviews.llvm.org/D4958