tree f0585cd9ba4633d4d60ea1bd1c6f649510d43247
parent b3e0410de4631a5ce39c11aa92edc5f6c3415a70
author Peter Collingbourne <peter@pcc.me.uk> 1547236386 +0000
committer Peter Collingbourne <peter@pcc.me.uk> 1547236386 +0000

gn build: Create a variable for the host toolchain and start using it in the tblgen template.

Differential Revision: https://reviews.llvm.org/D56575