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| author | Jingyue Wu <jingyue@google.com> | 2015-04-17 00:25:10 +0000 |
|---|---|---|
| committer | Jingyue Wu <jingyue@google.com> | 2015-04-17 00:25:10 +0000 |
| commit | 8579b813297a50364a50b7d7199106f6fc948e07 (patch) | |
| tree | f274381d071c5dde0d07d060001d6c84cb8b9590 /llvm/lib/CodeGen/MachineModuleInfo.cpp | |
| parent | ab8f7d58760cfe52a530c578f68d0cc8a2d91e1b (diff) | |
| download | llvm-8579b813297a50364a50b7d7199106f6fc948e07.zip llvm-8579b813297a50364a50b7d7199106f6fc948e07.tar.gz llvm-8579b813297a50364a50b7d7199106f6fc948e07.tar.bz2 | |
[NaryReassociate] run NaryReassociate iteratively
Summary:
An alternative is to use a worklist approach. However, that approach
would break the traversing order so that we couldn't lookup SeenExprs
efficiently. I don't see a clear winner here, so I picked the easier approach.
Along with two minor improvements:
1. preserves ScalarEvolution by forgetting instructions replaced
2. removes dead code locally avoiding the need of running DCE afterwards
Test Plan: add to slsr-add.ll a test that requires multiple iterations
Reviewers: broune, dberlin, atrick, meheff
Reviewed By: atrick
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9058
llvm-svn: 235151
Diffstat (limited to 'llvm/lib/CodeGen/MachineModuleInfo.cpp')
0 files changed, 0 insertions, 0 deletions