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| author | Nirav Dave <niravd@google.com> | 2018-05-16 16:48:20 +0000 |
|---|---|---|
| committer | Nirav Dave <niravd@google.com> | 2018-05-16 16:48:20 +0000 |
| commit | 11fd14c1ac219fcf0cebe1760dc459d1d5f20d87 (patch) | |
| tree | 912f7313d10f687e19352a279e8d4081dcd9b41a /clang/test/SemaCXX/code_seg1.cpp | |
| parent | d9d86cb7386daf050ecb6c329109ac3b61587852 (diff) | |
| download | bcm5719-llvm-11fd14c1ac219fcf0cebe1760dc459d1d5f20d87.tar.gz bcm5719-llvm-11fd14c1ac219fcf0cebe1760dc459d1d5f20d87.zip | |
[DAG] Prune cycle check in store merge.
As part of merging stores we check that fusing the nodes does not
cause a cycle due to one candidate store being indirectly dependent on
another store (this may happen via chained memory copies). This is
done by searching if a store is a predecessor to another store's
value.
Prune the search at the candidate search's root node which is a
predecessor to all candidate stores. This reduces the
size of the subgraph searched in large basic blocks.
Reviewers: jyknight
Subscribers: llvm-commits, hiraditya
Differential Revision: https://reviews.llvm.org/D46955
llvm-svn: 332490
Diffstat (limited to 'clang/test/SemaCXX/code_seg1.cpp')
0 files changed, 0 insertions, 0 deletions
