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(parent: 6b4ae71) | patch
Look ahead a bit to determine if a physical register def that is not marked dead...
authorEvan Cheng <evan.cheng@apple.com>
Thu, 4 Mar 2010 01:33:55 +0000 (01:33 +0000)
committerEvan Cheng <evan.cheng@apple.com>
Thu, 4 Mar 2010 01:33:55 +0000 (01:33 +0000)
commitb3958e80324884e3d1c1e198a50f212bae0c3b77
treec3cb03465fd875167d172b27d7383e6a9405eacftree | snapshot
parent6b4ae7172529503bd28333f488857c0d4fdc3e39commit | diff
Look ahead a bit to determine if a physical register def that is not marked dead is really alive. This is necessary to catch a lot of common cse opportunities for targets like x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97706 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/MachineCSE.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors