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Fix Undefined Behavior in hash.h

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hash.h:200:27, left shift of 250 by 24 places cannot be represented in type 'int'
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Kamil Rytarowski 2020-02-13 14:49:32 +01:00 committed by Qi Wang
parent ca1f082251
commit 7fd22f7b2e
1 changed files with 3 additions and 3 deletions
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include/jemalloc/internal/hash.h
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@ -182,19 +182,19 @@ hash_x86_128(const void *key, const int len, uint32_t seed,
case 13: k4 ^= tail[12] << 0; case 13: k4 ^= tail[12] << 0;
k4 *= c4; k4 = hash_rotl_32(k4, 18); k4 *= c1; h4 ^= k4; k4 *= c4; k4 = hash_rotl_32(k4, 18); k4 *= c1; h4 ^= k4;
JEMALLOC_FALLTHROUGH; JEMALLOC_FALLTHROUGH;
case 12: k3 ^= tail[11] << 24; JEMALLOC_FALLTHROUGH; case 12: k3 ^= (uint32_t) tail[11] << 24; JEMALLOC_FALLTHROUGH;
case 11: k3 ^= tail[10] << 16; JEMALLOC_FALLTHROUGH; case 11: k3 ^= tail[10] << 16; JEMALLOC_FALLTHROUGH;
case 10: k3 ^= tail[ 9] << 8; JEMALLOC_FALLTHROUGH; case 10: k3 ^= tail[ 9] << 8; JEMALLOC_FALLTHROUGH;
case 9: k3 ^= tail[ 8] << 0; case 9: k3 ^= tail[ 8] << 0;
k3 *= c3; k3 = hash_rotl_32(k3, 17); k3 *= c4; h3 ^= k3; k3 *= c3; k3 = hash_rotl_32(k3, 17); k3 *= c4; h3 ^= k3;
JEMALLOC_FALLTHROUGH; JEMALLOC_FALLTHROUGH;
case 8: k2 ^= tail[ 7] << 24; JEMALLOC_FALLTHROUGH; case 8: k2 ^= (uint32_t) tail[ 7] << 24; JEMALLOC_FALLTHROUGH;
case 7: k2 ^= tail[ 6] << 16; JEMALLOC_FALLTHROUGH; case 7: k2 ^= tail[ 6] << 16; JEMALLOC_FALLTHROUGH;
case 6: k2 ^= tail[ 5] << 8; JEMALLOC_FALLTHROUGH; case 6: k2 ^= tail[ 5] << 8; JEMALLOC_FALLTHROUGH;
case 5: k2 ^= tail[ 4] << 0; case 5: k2 ^= tail[ 4] << 0;
k2 *= c2; k2 = hash_rotl_32(k2, 16); k2 *= c3; h2 ^= k2; k2 *= c2; k2 = hash_rotl_32(k2, 16); k2 *= c3; h2 ^= k2;
JEMALLOC_FALLTHROUGH; JEMALLOC_FALLTHROUGH;
case 4: k1 ^= tail[ 3] << 24; JEMALLOC_FALLTHROUGH; case 4: k1 ^= (uint32_t) tail[ 3] << 24; JEMALLOC_FALLTHROUGH;
case 3: k1 ^= tail[ 2] << 16; JEMALLOC_FALLTHROUGH; case 3: k1 ^= tail[ 2] << 16; JEMALLOC_FALLTHROUGH;
case 2: k1 ^= tail[ 1] << 8; JEMALLOC_FALLTHROUGH; case 2: k1 ^= tail[ 1] << 8; JEMALLOC_FALLTHROUGH;
case 1: k1 ^= tail[ 0] << 0; case 1: k1 ^= tail[ 0] << 0;