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| author | David Goldblatt <davidgoldblatt@fb.com> | 2023-03-03 13:23:27 +0100 |
|---|---|---|
| committer | Nikita Popov <npopov@redhat.com> | 2023-03-03 13:26:29 +0100 |
| commit | 4d59ffb0d19a40c974ce930e8e9336d3df4d2dd3 (patch) | |
| tree | b2102e69ca4cfa70562556be8f5b37852c7b102a /lldb/source/Plugins/ScriptInterpreter/Python/PythonReadline.cpp | |
| parent | f747cba68d36d24a33f0d36f7ac5bfd840499937 (diff) | |
| download | llvm-4d59ffb0d19a40c974ce930e8e9336d3df4d2dd3.zip llvm-4d59ffb0d19a40c974ce930e8e9336d3df4d2dd3.tar.gz llvm-4d59ffb0d19a40c974ce930e8e9336d3df4d2dd3.tar.bz2 | |
[InstCombine] Simplify separate_storage assumptions
Before this change, we call getUnderlyingObject on each separate_storage
operand on every alias() call (potentially requiring lots of pointer
chasing). Instead, we rewrite the assumptions in instcombine to do this
pointer-chasing once.
We still leave the getUnderlyingObject calls in alias(), just expecting
them to be no-ops much of the time. This is relatively fast (just a
couple dyn_casts with no pointer chasing) and avoids making alias
analysis results depend on whether or not instcombine has been run.
Differential Revision: https://reviews.llvm.org/D144933
Diffstat (limited to 'lldb/source/Plugins/ScriptInterpreter/Python/PythonReadline.cpp')
0 files changed, 0 insertions, 0 deletions