Alex Bradbury 78e18785d2 [RISCV] Implement codegen for cmpxchg on RV32IA ... Utilise a similar ('late') lowering strategy to D47882. The changes to AtomicExpandPass allow this strategy to be utilised by other targets which implement shouldExpandAtomicCmpXchgInIR. All cmpxchg are lowered as 'strong' currently and failure ordering is ignored. This is conservative but correct. Differential Revision: https://reviews.llvm.org/D48131 llvm-svn: 347914		2018-11-29 20:43:42 +00:00
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llvm	[RISCV] Implement codegen for cmpxchg on RV32IA	2018-11-29 20:43:42 +00:00
llvm-c	[IR] Add a dedicated FNeg IR Instruction	2018-11-13 18:15:47 +00:00