Ahmed Bougacha 74869be273 [CodeGen] Refactor TLI/AtomicExpand interface to make LLSC explicit. ...

We used to have this magic "hasLoadLinkedStoreConditional()" callback,
which really meant two things:
- expand cmpxchg (to ll/sc).
- expand atomic loads using ll/sc (rather than cmpxchg).

Remove it, and, instead, introduce explicit callbacks:
- bool shouldExpandAtomicCmpXchgInIR(inst)
- AtomicExpansionKind shouldExpandAtomicLoadInIR(inst)

Differential Revision: http://reviews.llvm.org/D12557

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@247429 91177308-0d34-0410-b5e6-96231b3b80d8

2015-09-11 17:08:28 +00:00

..

llvm

[CodeGen] Refactor TLI/AtomicExpand interface to make LLSC explicit.

2015-09-11 17:08:28 +00:00

llvm-c

[WinEH] Add cleanupendpad instruction

2015-09-03 09:09:43 +00:00