[PATCH] D29388: [PPC] Use rldicr instruction for AND with an immediate if possible

Hiroshi Inoue via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Feb 1 03:50:28 PST 2017

inouehrs created this revision.

- generate `rldicr` (`clrrdi`) for AND with an immediate like 0xFFFF0000 (i.e. a bit sequence of ones from most significant side and all zero for reminder) on PowerPC platform; currently LLVM generates two or three instructions
- update two unit tests affected by this change



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