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| author | Florian Hahn <flo@fhahn.com> | 2020-09-09 09:00:41 +0100 |
|---|---|---|
| committer | Florian Hahn <flo@fhahn.com> | 2020-09-09 09:14:50 +0100 |
| commit | 2bcc4db761768f1b7431237920f26360549ca268 (patch) | |
| tree | 8e519385f86e9b906f708e91050836939c3d253d /llvm/tools/llvm-objdump/llvm-objdump.cpp | |
| parent | 32c8da41dc0cb99651823a1a21130c2cbdf688e1 (diff) | |
| download | llvm-2bcc4db761768f1b7431237920f26360549ca268.zip llvm-2bcc4db761768f1b7431237920f26360549ca268.tar.gz llvm-2bcc4db761768f1b7431237920f26360549ca268.tar.bz2 | |
[EarlyCSE] Explicitly require AAResultsWrapperPass.
The MemorySSAWrapperPass depends on AAResultsWrapperPass and if
MemorySSA is preserved but AAResultsWrapperPass is not, this could lead
to a crash when updating the last user of the MemorySSAWrapperPass.
Alternatively AAResultsWrapperPass could be marked preserved by GVN, but
I am not sure if that would be safe. I am not sure what is required in
order to preserve AAResultsWrapperPass. At the moment, it seems like a
couple of passes that do similar transforms to GVN are preserving it.
Reviewed By: asbirlea
Differential Revision: https://reviews.llvm.org/D87137
Diffstat (limited to 'llvm/tools/llvm-objdump/llvm-objdump.cpp')
0 files changed, 0 insertions, 0 deletions