6 Commits

Author SHA1 Message Date
jkorous-apple
fde4b80cb7
[-Wunsafe-buffer-usage] Minimize fixit range for pointer variables (#81935)
Example:
int * const my_var = my_initializer;

Currently when transforming my_var to std::span the fixits:
- replace "int * const my_var = " with "std::span<int> const my_var {"
- add ", SIZE}" after "my_initializer" where SIZE is either inferred or
a placeholder

This patch makes that behavior less intrusive by not modifying variable
cv-qualifiers and initialization syntax.
The new behavior is:
- replace "int *" with "std::span<int>"
- add "{" before "my_initializer"
- add ", SIZE}" after "my_initializer"

This is an improvement on its own - since we don't touch the identifier,
we automatically can handle macros in them.
It also simplifies future work on initializer fixits.
2024-02-16 14:25:21 -08:00
Ziqing Luo
700baeb765 [-Wunsafe-buffer-usage] Use Strategy to determine whether to fix a parameter
- Use Strategy to determine whether to fix a parameter
- Fix the `Strategy` construction so that only variables on the graph
are assigned the `std::span` strategy

Reviewed by: t-rasmud (Rashmi Mudduluru), NoQ (Artem Dergachev)

Differential revision: https://reviews.llvm.org/D157441
2023-09-21 15:06:22 -07:00
Rashmi Mudduluru
87b8c85bba [-Wunsafe-bugger-usage] Clean tests: remove nondeterministic ordering
Differential Review: https://reviews.llvm.org/D158553
2023-09-19 14:20:45 -07:00
Rashmi Mudduluru
171dfc5462 [-Wunsafe-buffer-usage] Group variables associated by pointer assignments
Differential Revision: https://reviews.llvm.org/D145739
2023-05-25 11:31:27 -07:00
Douglas Yung
2e6325c71f Revert "[-Wunsafe-buffer-usage] Group variables associated by pointer assignments"
This reverts commit ee6b08e99375fc48d1e5848704a66c2e8e57eb3b.

One of the added tests warn-unsafe-buffer-usage-multi-decl-warnings.cpp does
not seem to be deterministic, and seems to be especially problematic on Windows.

Failures of this one test on llvm-clang-x86_64-sie-win:
- https://lab.llvm.org/buildbot/#/builders/216/builds/21758
- https://lab.llvm.org/buildbot/#/builders/216/builds/21761
- https://lab.llvm.org/buildbot/#/builders/216/builds/21762
- https://lab.llvm.org/buildbot/#/builders/216/builds/21765
- https://lab.llvm.org/buildbot/#/builders/216/builds/21770
- https://lab.llvm.org/buildbot/#/builders/216/builds/21771
- https://lab.llvm.org/buildbot/#/builders/216/builds/21773
- https://lab.llvm.org/buildbot/#/builders/216/builds/21776
- https://lab.llvm.org/buildbot/#/builders/216/builds/21777
- https://lab.llvm.org/buildbot/#/builders/216/builds/21778
- https://lab.llvm.org/buildbot/#/builders/216/builds/21779

Other random bot failures:
- https://lab.llvm.org/buildbot/#/builders/65/builds/9821
- https://lab.llvm.org/buildbot/#/builders/65/builds/9822
- https://lab.llvm.org/buildbot/#/builders/65/builds/9824
- https://lab.llvm.org/buildbot/#/builders/119/builds/13440
- https://lab.llvm.org/buildbot/#/builders/119/builds/13442
- https://lab.llvm.org/buildbot/#/builders/119/builds/13444
- https://lab.llvm.org/buildbot/#/builders/119/builds/13445
- https://lab.llvm.org/buildbot/#/builders/60/builds/12156
- https://lab.llvm.org/buildbot/#/builders/60/builds/12157
- https://lab.llvm.org/buildbot/#/builders/60/builds/12160
2023-05-25 02:10:32 -07:00
Rashmi Mudduluru
ee6b08e993 [-Wunsafe-buffer-usage] Group variables associated by pointer assignments
Differential Revision: https://reviews.llvm.org/D145739
2023-05-24 16:20:55 -07:00