tree 7a6b83a0b4ddccddcd1c4e8de7d89edc09b0e39d
parent 9e344c65b1e8b83e1d3ada507cf653526ff2c005
author Chris Lattner <sabre@nondot.org> 1184459126 +0000
committer Chris Lattner <sabre@nondot.org> 1184459126 +0000

Cache macro expander objects to avoid thrashing malloc in heavy expansion situations.
This doesn't significantly improve carbon.h, but it does speed up
INPUTS/macro_pounder_obj.c by 48%


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@39864 91177308-0d34-0410-b5e6-96231b3b80d8