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(parent: 8d56cdd) | patch
Make loop-simplify produce better loops by turning PHI nodes like X = phi [X, Y]
authorChris Lattner <sabre@nondot.org>
Wed, 10 Aug 2005 02:07:32 +0000 (02:07 +0000)
committerChris Lattner <sabre@nondot.org>
Wed, 10 Aug 2005 02:07:32 +0000 (02:07 +0000)
commit94f40324481c04ae8718967b4b5a3d7ca22370e6
tree608f79469f26e0a0346794b34f28d3fb792af2betree | snapshot
parent8d56cdd0d1e51aebe25015ca92dde296a0709424commit | diff
Make loop-simplify produce better loops by turning PHI nodes like X = phi [X, Y]
into just Y.  This often occurs when it seperates loops that have collapsed loop
headers.  This implements LoopSimplify/phi-node-simplify.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22746 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/Utils/LoopSimplify.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors