diff options
| -rw-r--r-- | src/util/xxhash.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/util/xxhash.h b/src/util/xxhash.h index c0c8f44b600..f7a4b40578e 100644 --- a/src/util/xxhash.h +++ b/src/util/xxhash.h @@ -69,6 +69,15 @@ XXH64 13.8 GB/s 1.9 GB/s XXH32 6.8 GB/s 6.0 GB/s */ +/* Mesa leaves strict aliasing on in the compiler, and this code likes to + * dereference the passed in data as u32*, which means that the compiler is + * free to move the u32 read before the write of the struct members being + * hashed, and in practice it did in freedreno. Forcing these two things + * prevents it. + */ +#define XXH_FORCE_ALIGN_CHECK 0 +#define XXH_FORCE_MEMORY_ACCESS 0 + #if defined (__cplusplus) extern "C" { #endif |