maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
252,467 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

5 Commits

Author SHA1 Message Date
Adam Nemet 358433ce1b [LICM] Report successful hoist/sink/promotion 
Differential Revision: https://reviews.llvm.org/D27938

llvm-svn: 291646
 2017-01-11 04:39:35 +00:00
Dehao Chen 9cba1f4e7e New pass manager for LICM. 
Summary: Port LICM to the new pass manager.

Reviewers: davidxl, silvas

Subscribers: krasin, vitalybuka, silvas, davide, sanjoy, llvm-commits, mehdi_amini

Differential Revision: http://reviews.llvm.org/D21772

llvm-svn: 275222
 2016-07-12 22:37:48 +00:00
Vitaly Buka 204dc533c5 Revert "New pass manager for LICM." 
Summary: This reverts commit r275118.

Subscribers: sanjoy, mehdi_amini

Differential Revision: http://reviews.llvm.org/D22259

llvm-svn: 275156
 2016-07-12 06:25:32 +00:00
Dehao Chen 7ef5820fa3 New pass manager for LICM. 
Summary: Port LICM to the new pass manager.

Reviewers: davidxl, silvas

Subscribers: silvas, davide, sanjoy, llvm-commits, mehdi_amini

Differential Revision: http://reviews.llvm.org/D21772

llvm-svn: 275118
 2016-07-11 22:45:24 +00:00
Evgeniy Stepanov 10280dac1d [LICM] Don't create more than one copy of an instruction per loop exit block when sinking. 
Fixes exponential compilation complexity in PR19835, caused by
LICM::sink not handling the following pattern well:

f = op g
e = op f, g
d = op e
c = op d, e
b = op c
a = op b, c

When an instruction with N uses is sunk, each of its operands gets N
new uses (all of them - phi nodes). In the example above, if a had 1
use, c would have 2, e would have 4, and g would have 8.

llvm-svn: 211673
 2014-06-25 07:54:58 +00:00