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fix(hash): mark unaligned reads may_alias in xxhash #383

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Merged
haochengxia merged 1 commit into from
Nov 8, 2026
Merged

fix(hash): mark unaligned reads may_alias in xxhash #383

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4 changes: 2 additions & 2 deletions libCacheSim/dataStructure/hash/xxhash.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1063,7 +1063,7 @@ typedef union {
static xxh_u32 XXH_read32(const void* ptr) {
typedef union {
xxh_u32 u32;
} __attribute__((packed)) xxh_unalign;
} __attribute__((packed, __may_alias__)) xxh_unalign;
return ((const xxh_unalign*)ptr)->u32;
}

Expand Down Expand Up @@ -1682,7 +1682,7 @@ static xxh_u64 XXH_read64(const void* ptr) {
typedef union {
xxh_u32 u32;
xxh_u64 u64;
} __attribute__((packed)) xxh_unalign64;
} __attribute__((packed, __may_alias__)) xxh_unalign64;
return ((const xxh_unalign64*)ptr)->u64;
}

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