Ahmed Bougacha 604526fe87 [CodeGen] Don't require AA in SDAGISel at -O0. ... Before r247167, the pass manager builder controlled which AA implementations were used, exporting them all in the AliasAnalysis analysis group. Now, AAResultsWrapperPass always uses BasicAA, but still uses other AA implementations if made available in the pass pipeline. But regardless, SDAGISel is required at O0, and really doesn't need to be doing fancy optimizations based on useful AA results. Don't require AA at CodeGenOpt::None, and only use it otherwise. This does have a functional impact (and one testcase is pessimized because we can't reuse a load). But I think that's desirable no matter what. Note that this alone doesn't result in less DT computations: TwoAddress was previously able to reuse the DT we computed for SDAG. That will be fixed separately. Differential Revision: https://reviews.llvm.org/D32766 llvm-svn: 302611		2017-05-10 00:39:30 +00:00
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llvm	[CodeGen] Don't require AA in SDAGISel at -O0.	2017-05-10 00:39:30 +00:00
llvm-c	Introduce LLVMDIBuilderRef	2017-04-20 14:22:47 +00:00