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InstCombine: Combine (X | Y) - X to (~X & Y)
authorDavid Majnemer <david.majnemer@gmail.com>
Mon, 3 Nov 2014 05:53:55 +0000 (05:53 +0000)
committerDavid Majnemer <david.majnemer@gmail.com>
Mon, 3 Nov 2014 05:53:55 +0000 (05:53 +0000)
commit72a643dc8f42510c2b4ed7acfa379061c6ab9024
treeec1c168cefaf6d09d1b7df833261deaf4aadc7a9tree | snapshot
parentd301b9b3e00408183e903069a3eb9d40ea23afbecommit | diff
InstCombine: Combine (X | Y) - X to (~X & Y)

This implements the transformation from (X | Y) - X to (~X & Y).

Differential Revision: http://reviews.llvm.org/D5791

llvm-svn: 221129
llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp diff | blob | history
llvm/test/Transforms/InstCombine/sub.ll diff | blob | history
Domain: System / Toolchain;