Daniel Sanders d3ed5b78e5 [globalisel][tablegen] Import SelectionDAG's rule predicates and support the equivalent in GIRule. ... Summary: The SelectionDAG importer now imports rules with Predicate's attached via Requires, PredicateControl, etc. These predicates are implemented as bitset's to allow multiple predicates to be tested together. However, unlike the MC layer subtarget features, each target only pays for it's own predicates (e.g. AArch64 doesn't have 192 feature bits just because X86 needs a lot). Both AArch64 and X86 derive at least one predicate from the MachineFunction or Function so they must re-initialize AvailableFeatures before each function. They also declare locals in <Target>InstructionSelector so that computeAvailableFeatures() can use the code from SelectionDAG without modification. Reviewers: rovka, qcolombet, aditya_nandakumar, t.p.northover, ab Reviewed By: rovka Subscribers: aemerson, rengolin, dberris, kristof.beyls, llvm-commits, igorb Differential Revision: https://reviews.llvm.org/D31418 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300964 91177308-0d34-0410-b5e6-96231b3b80d8		2017-04-21 10:27:20 +00:00
..
llvm	[globalisel][tablegen] Import SelectionDAG's rule predicates and support the equivalent in GIRule.	2017-04-21 10:27:20 +00:00
llvm-c	Introduce LLVMDIBuilderRef	2017-04-20 14:22:47 +00:00