Silviu Baranga 0905413218 [SCEV] Change the SCEV Predicates interfaces for conversion to AddRecExpr to return SCEVAddRecExpr* instead of SCEV* ...

Summary:
This changes the conversion functions from SCEV * to SCEVAddRecExpr from
ScalarEvolution and PredicatedScalarEvolution to return a SCEVAddRecExpr*
instead of a SCEV* (which removes the need of most clients to do a
dyn_cast right after calling these functions).

We also don't add new predicates if the transformation was not successful.

This is not entirely a NFC (as it can theoretically remove some predicates
from LAA when we have an unknown dependece), but I couldn't find an obvious
regression test for it.

Reviewers: sanjoy

Subscribers: sanjoy, mzolotukhin, llvm-commits

Differential Revision: http://reviews.llvm.org/D18368

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@264161 91177308-0d34-0410-b5e6-96231b3b80d8

2016-03-23 15:29:30 +00:00

..

llvm

[SCEV] Change the SCEV Predicates interfaces for conversion to AddRecExpr to return SCEVAddRecExpr* instead of SCEV*

2016-03-23 15:29:30 +00:00

llvm-c

Expose IRBuilder::CreateAtomicCmpXchg as LLVMBuildAtomicCmpXchg in the C API.

2016-03-19 21:28:28 +00:00