TableGen: avoid dereferencing nullptr variable
authorTim Northover <tnorthover@apple.com>
Sat, 29 Mar 2014 09:03:22 +0000 (09:03 +0000)
committerTim Northover <tnorthover@apple.com>
Sat, 29 Mar 2014 09:03:22 +0000 (09:03 +0000)
commit69bd9577fc423edea13479eaacf7b1844faa6c6a
tree7cc01ef9f8b97cfbbc4d1fcf0748c338d8c56e47
parent483b0e996c4d7b72cffd3ceacc0636758749940e
TableGen: avoid dereferencing nullptr variable

ARM64 ended up reaching odder parts of TableGen alias generation than
current backends and caused a segfault.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205089 91177308-0d34-0410-b5e6-96231b3b80d8
utils/TableGen/CodeGenInstruction.cpp