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| author | Farid Zakaria <fmzakari@google.com> | 2023-07-23 20:19:42 -0700 |
|---|---|---|
| committer | Fangrui Song <i@maskray.me> | 2023-07-23 20:19:42 -0700 |
| commit | 1f8f8760b586320be094daa872b298eeeedf582d (patch) | |
| tree | c054cf06ca9a621da2c8e1d0bf2653e245870c10 /llvm/cmake | |
| parent | fd0aa70528e425fe192d3eb0c5c1e32b4b1ccbf5 (diff) | |
| download | llvm-1f8f8760b586320be094daa872b298eeeedf582d.zip llvm-1f8f8760b586320be094daa872b298eeeedf582d.tar.gz llvm-1f8f8760b586320be094daa872b298eeeedf582d.tar.bz2 | |
[CMake] Disable GCC -Wnonnull
I noticed during the build that GCC would emit a ton of nonnull
warnings.
Example:
```
/usr/local/google/home/fmzakari/code/github.com/llvm/llvm-project/clang/include/clang/AST/ExternalASTSource.h:378:54: warning: ‘this’ pointer is null [-Wnonnull]
378 | Ptr = reinterpret_cast<uint64_t>((Source->*Get)(Ptr >> 1));
| ~~~~~~~~~~~~~~^~~~~~~~~~
```
Reviewed By: MaskRay, rsmith
Differential Revision: https://reviews.llvm.org/D155857
Diffstat (limited to 'llvm/cmake')
| -rw-r--r-- | llvm/cmake/modules/HandleLLVMOptions.cmake | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake index 8692af9..19d6c58 100644 --- a/llvm/cmake/modules/HandleLLVMOptions.cmake +++ b/llvm/cmake/modules/HandleLLVMOptions.cmake @@ -770,6 +770,11 @@ if (LLVM_ENABLE_WARNINGS AND (LLVM_COMPILER_IS_GCC_COMPATIBLE OR CLANG_CL)) append_if(USE_NO_UNINITIALIZED "-Wno-uninitialized" CMAKE_CXX_FLAGS) append_if(USE_NO_MAYBE_UNINITIALIZED "-Wno-maybe-uninitialized" CMAKE_CXX_FLAGS) + # Disable -Wnonnull for GCC warning as it is emitting a lot of false positives. + if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU") + append("-Wno-nonnull" CMAKE_CXX_FLAGS) + endif() + # Disable -Wclass-memaccess, a C++-only warning from GCC 8 that fires on # LLVM's ADT classes. check_cxx_compiler_flag("-Wclass-memaccess" CXX_SUPPORTS_CLASS_MEMACCESS_FLAG) |