| commit | 95350b9cd2c7ccdc5d1e2118742c1a43012c7a9f | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Tue Jun 17 17:59:16 2008 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Tue Jun 17 17:59:16 2008 +0000 |
| tree | c74311f6aa2ecabb07ed02de256e7554d5c245d1 | |
| parent | 0b725f17e0fade6820813557fe4b6f8208b7510d [diff] |
It's not safe to remove SUBREG_TO_REG that looks like identity copies, e.g. movl %eax, %eax on x86-64 actually does a zero-extend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52421 91177308-0d34-0410-b5e6-96231b3b80d8