diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2009-05-08 06:34:09 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-05-08 06:34:09 +0000 |
| commit | 2fa281106ac65e72e2f95c5cd5d03561da67894f (patch) | |
| tree | 3d89499ba8076ba85235873251bac722f8611ace /llvm/lib/Transforms | |
| parent | 2f6bddd2b1b2a618271605dfa59df6290214f1a5 (diff) | |
| download | bcm5719-llvm-2fa281106ac65e72e2f95c5cd5d03561da67894f.tar.gz bcm5719-llvm-2fa281106ac65e72e2f95c5cd5d03561da67894f.zip | |
Optimize code placement in loop to eliminate unconditional branches or move unconditional branch to the outside of the loop. e.g.
/// A:
/// ...
/// <fallthrough to B>
///
/// B: --> loop header
/// ...
/// jcc <cond> C, [exit]
///
/// C:
/// ...
/// jmp B
///
/// ==>
///
/// A:
/// ...
/// jmp B
///
/// C: --> new loop header
/// ...
/// <fallthough to B>
///
/// B:
/// ...
/// jcc <cond> C, [exit]
llvm-svn: 71209
Diffstat (limited to 'llvm/lib/Transforms')
0 files changed, 0 insertions, 0 deletions
