Fix a subtle bug in DeadMachineInstructionElim's liveness
authorDan Gohman <gohman@apple.com>
Thu, 16 Oct 2008 00:11:23 +0000 (00:11 +0000)
committerDan Gohman <gohman@apple.com>
Thu, 16 Oct 2008 00:11:23 +0000 (00:11 +0000)
commitb382c4dc235b78b606b305f1913fafc20eca472c
treee090ab899bc222811bf6bfd17c01ea3cebf601b0
parenta7250ddc2848bc15f96abd15a4dd872abdc2d08b
Fix a subtle bug in DeadMachineInstructionElim's liveness
computation. A def of a register doesn't necessarily kill
live super-registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57614 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/DeadMachineInstructionElim.cpp