diff options
Diffstat (limited to 'vpx_ports/compiler_attributes.h')
| -rw-r--r-- | vpx_ports/compiler_attributes.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/vpx_ports/compiler_attributes.h b/vpx_ports/compiler_attributes.h index 354352016..4b468749b 100644 --- a/vpx_ports/compiler_attributes.h +++ b/vpx_ports/compiler_attributes.h @@ -29,13 +29,23 @@ #endif // __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) #if defined(__clang__) && __has_attribute(no_sanitize) +// Both of these have defined behavior and are used in certain operations or +// optimizations thereof. There are cases where an overflow may be unintended, +// however, so use of these attributes should be done with care. #define VPX_NO_UNSIGNED_OVERFLOW_CHECK \ __attribute__((no_sanitize("unsigned-integer-overflow"))) -#endif +#if __clang_major__ >= 12 +#define VPX_NO_UNSIGNED_SHIFT_CHECK \ + __attribute__((no_sanitize("unsigned-shift-base"))) +#endif // __clang__ >= 12 +#endif // __clang__ #ifndef VPX_NO_UNSIGNED_OVERFLOW_CHECK #define VPX_NO_UNSIGNED_OVERFLOW_CHECK #endif +#ifndef VPX_NO_UNSIGNED_SHIFT_CHECK +#define VPX_NO_UNSIGNED_SHIFT_CHECK +#endif //------------------------------------------------------------------------------ // Variable attributes. |