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| author | Jamie Schmeiser <schmeise@ca.ibm.com> | 2021-07-20 10:12:20 -0400 |
|---|---|---|
| committer | Jamie Schmeiser <schmeise@ca.ibm.com> | 2021-07-20 10:12:20 -0400 |
| commit | 9cb00b9ecbe74d19389a5818d61ddee328afe031 (patch) | |
| tree | 106491ce57bf912fb5f4f38f839f1bc106fdf4f5 /llvm/lib/Object/Binary.cpp | |
| parent | 02cd937945f8f044aa52b7967531be2b77b27431 (diff) | |
| download | llvm-9cb00b9ecbe74d19389a5818d61ddee328afe031.zip llvm-9cb00b9ecbe74d19389a5818d61ddee328afe031.tar.gz llvm-9cb00b9ecbe74d19389a5818d61ddee328afe031.tar.bz2 | |
Reland Produce warning for performing pointer arithmetic on a null pointer.
Summary:
Test and produce warning for subtracting a pointer from null or subtracting
null from a pointer.
This reland adds the functionality that the warning is no longer reusing an
existing warning, it has different wording for C vs C++ to refect the fact
that nullptr-nullptr has defined behaviour in C++, it is suppressed
when the warning is triggered by a system header and adds
-Wnull-pointer-subtraction to allow the warning to be controlled. -Wextra
implies -Wnull-pointer-subtraction.
Author: Jamie Schmeiser <schmeise@ca.ibm.com>
Reviewed By: efriedma (Eli Friedman), nickdesaulniers (Nick Desaulniers)
Differential Revision: https://reviews.llvm.org/D98798
Diffstat (limited to 'llvm/lib/Object/Binary.cpp')
0 files changed, 0 insertions, 0 deletions