| commit | a6fb1b6743ee1411accf2d6e636f73f2ee0a7f5b | [log] [tgz] |
|---|---|---|
| author | Evan Cheng <evan.cheng@apple.com> | Tue Sep 25 01:54:36 2007 +0000 |
| committer | Evan Cheng <evan.cheng@apple.com> | Tue Sep 25 01:54:36 2007 +0000 |
| tree | 05eb93ca35bcfe154a16403c81b638ae3abf777b | |
| parent | a3602685b34f4c9a1602fdc7fb120a7f51228736 [diff] |
Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8