Hal Finkel 5c12d8fe8f BasicAA should look through functions with returned arguments ...

Motivated by the work on the llvm.noalias intrinsic, teach BasicAA to look
through returned-argument functions when answering queries. This is essential
so that we don't loose all other AA information when supplementing with
llvm.noalias.

Differential Revision: http://reviews.llvm.org/D9383

llvm-svn: 275035

2016-07-11 01:32:20 +00:00

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