diff -Nur jemalloc-5.2.1/include/jemalloc/internal/hash.h tmp/include/jemalloc/internal/hash.h
--- jemalloc-5.2.1/include/jemalloc/internal/hash.h	2019-08-06 04:02:00.000000000 +0800
+++ tmp/include/jemalloc/internal/hash.h	2021-11-16 10:49:41.199628212 +0800
@@ -182,19 +182,19 @@
 		case 13: k4 ^= tail[12] << 0;
 			k4 *= c4; k4 = hash_rotl_32(k4, 18); k4 *= c1; h4 ^= k4;
       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 10: k3 ^= tail[ 9] << 8; JEMALLOC_FALLTHROUGH
 		case  9: k3 ^= tail[ 8] << 0;
 		     k3 *= c3; k3 = hash_rotl_32(k3, 17); k3 *= c4; h3 ^= k3;
          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  6: k2 ^= tail[ 5] << 8; JEMALLOC_FALLTHROUGH
 		case  5: k2 ^= tail[ 4] << 0;
 			k2 *= c2; k2 = hash_rotl_32(k2, 16); k2 *= c3; h2 ^= k2;
       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  2: k1 ^= tail[ 1] << 8; JEMALLOC_FALLTHROUGH
 		case  1: k1 ^= tail[ 0] << 0;