RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-02-01 05:01:59 +01:00
Code Issues Projects Releases Wiki Activity
190,083 Commits 4 Branches 5 Tags
Commit Graph

5 Commits

Author SHA1 Message Date
Eric Christopher
a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
 2019-04-17 04:52:47 +00:00
Eric Christopher
71d1cca7ef Temporarily Revert "Add basic loop fusion pass." 
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
 2019-04-17 02:12:23 +00:00
Easwaran Raman
addb2cb8dd [PM] Port LCSSA to the new PM. 
Differential Revision: http://reviews.llvm.org/D21090

llvm-svn: 272294
 2016-06-09 19:44:46 +00:00
Andrew Trick
c5e08120a4 Enable the new LoopInfo algorithm by default. 
The primary advantage is that loop optimizations will be applied in a
stable order. This helps debugging and unit test creation. It is also
a better overall implementation without pathologically bad performance
on deep functions.

On large functions (llvm-stress --size=200000 | opt -loops)
Before: 0.1263s
After:  0.0225s

On deep functions (after tweaking llvm-stress, thanks Nadav):
Before: 0.2281s
After:  0.0227s

See r158790 for more comments.

The loop tree is now consistently generated in forward order, but loop
passes are applied in reverse order over the program. If we have a
loop optimization that prefers forward order, that can easily be
achieved by adding a different type of LoopPassManager.

llvm-svn: 159183
 2012-06-26 04:11:38 +00:00
Cameron Zwarich
7947e73536 Do not add PHIs with no users when creating LCSSA form. Patch by Andrew Clinton. 
llvm-svn: 127674
 2011-03-15 07:41:25 +00:00