Evan Cheng
|
51fa9c7138
|
Enable loop bb placement optimization.
llvm-svn: 71291
|
2009-05-08 23:35:49 +00:00 |
|
Evan Cheng
|
6e9959e327
|
Don't align loop header unless the loop back edge is below the header.
llvm-svn: 71242
|
2009-05-08 19:01:44 +00:00 |
|
Evan Cheng
|
5b9b33bcac
|
Reverse branch condition only when there is a conditional branch.
llvm-svn: 71214
|
2009-05-08 09:35:53 +00:00 |
|
Nick Lewycky
|
b873ed672d
|
Add explicit braces to disambiguate nested if/else. Removes a warning.
llvm-svn: 71211
|
2009-05-08 06:57:41 +00:00 |
|
Evan Cheng
|
2fa281106a
|
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
|
2009-05-08 06:34:09 +00:00 |
|
Evan Cheng
|
143bae5dcd
|
Code refactoring.
llvm-svn: 71151
|
2009-05-07 05:49:39 +00:00 |
|
Evan Cheng
|
f356a89e92
|
Rename "loop aligner" pass to "code placement optimization" pass.
llvm-svn: 71150
|
2009-05-07 05:42:24 +00:00 |
|