Robin Morisset 1ad925ccf8 Refactor AtomicExpandPass and add a generic isAtomic() method to Instruction ... Summary: Split shouldExpandAtomicInIR() into different versions for Stores/Loads/RMWs/CmpXchgs. Makes runOnFunction cleaner (no more redundant checking/casting), and will help moving the X86 backend to this pass. This requires a way of easily detecting which instructions are atomic. I followed the pattern of mayReadFromMemory, mayWriteOrReadMemory, etc.. in making isAtomic() a method of Instruction implemented by a switch on the opcodes. Test Plan: make check Reviewers: jfb Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D5035 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217080 91177308-0d34-0410-b5e6-96231b3b80d8		2014-09-03 21:29:59 +00:00
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llvm	Refactor AtomicExpandPass and add a generic isAtomic() method to Instruction	2014-09-03 21:29:59 +00:00
llvm-c