ignore register zero in isRegTiedToUseOperand, following the example of
authorChris Lattner <sabre@nondot.org>
Thu, 9 Apr 2009 23:33:34 +0000 (23:33 +0000)
committerChris Lattner <sabre@nondot.org>
Thu, 9 Apr 2009 23:33:34 +0000 (23:33 +0000)
commitc30aa7b3de0ce8c37e9630e8e7a73cb83c808c62
treedce8ded7ac66f6ea34291580c3a4fd0459fdfbd9
parent3ca15c989ca0e09085648771db368d8c94ee1f19
ignore register zero in isRegTiedToUseOperand, following the example of
isRegTiedToDefOperand.  Thanks to Bob for pointing this out!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68734 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/MachineInstr.cpp