tree 5c0890f2733715c409959f75b2025e2d8f7bd4ad
parent 67ae8ff80555a506f68abe3ad17195553725f2ca
author Logan Chien <loganchien@google.com> 1336115036 +0800
committer Shih-wei Liao <sliao@google.com> 1336122286 -0700

Manage llvm::TargetMachine with smart pointer.

We should delete llvm::TargetMachine if we don't have to
use it anymore; otherwise we will suffer from the memory
leak.

Change-Id: I776c3447b7e73531f2c99a3b082dfbeebcd4af22