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| author | Alexandros Lamprineas <alexandros.lamprineas@arm.com> | 2018-07-16 07:51:27 +0000 |
|---|---|---|
| committer | Alexandros Lamprineas <alexandros.lamprineas@arm.com> | 2018-07-16 07:51:27 +0000 |
| commit | f854ce84c4cc676ff16adbe819db3bcfd325dabf (patch) | |
| tree | 1e81ba2d3cd7311c35948627c326df601e60dedf /llvm/lib/Analysis/Analysis.cpp | |
| parent | 832f49b90a4907a0bc2b34b688c32f3c9613aab0 (diff) | |
| download | bcm5719-llvm-f854ce84c4cc676ff16adbe819db3bcfd325dabf.tar.gz bcm5719-llvm-f854ce84c4cc676ff16adbe819db3bcfd325dabf.zip | |
[MemorySSAUpdater] Remove deleted trivial Phis from active workset
Bug fix for PR37808. The regression test is a reduced version of the
original reproducer attached to the bug report. As stated in the report,
the problem was that InsertedPHIs was keeping dangling pointers to
deleted Memory-Phis. MemoryPhis are created eagerly and sometimes get
zapped shortly afterwards. I've used WeakVH instead of an expensive
removal operation from the active workset.
Differential Revision: https://reviews.llvm.org/D48372
llvm-svn: 337149
Diffstat (limited to 'llvm/lib/Analysis/Analysis.cpp')
0 files changed, 0 insertions, 0 deletions
