Don't assume that only Uses can be kills. Defs are marked as kills initially
authorDan Gohman <gohman@apple.com>
Fri, 20 Jul 2007 23:17:34 +0000 (23:17 +0000)
committerDan Gohman <gohman@apple.com>
Fri, 20 Jul 2007 23:17:34 +0000 (23:17 +0000)
commitc674a924d4ed62e857bf788d7e0c76c89239b903
tree95cdab551cadecb8363de87970763a4e90d7af8e
parentb1d1f7a03518d1fd38fa8e228c2ee750d59e9af8
Don't assume that only Uses can be kills. Defs are marked as kills initially
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40131 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/CodeGen/LiveVariables.h
lib/CodeGen/LiveVariables.cpp
lib/CodeGen/SimpleRegisterCoalescing.cpp