Static hostname: starker-HYM-WXX

       Icon name: computer-laptop
         Chassis: laptop
      Machine ID: 9f936e1bf87b4e7cb0e53e5422bcaf22
         Boot ID: c74b57b3d9404c4cb168120c1840150c
Operating System: Ubuntu 22.04.2 LTS
          Kernel: Linux 5.19.0-45-generic
    Architecture: x86-64
 Hardware Vendor: HONOR
  Hardware Model: HYM-WXX
 21:24:15 up  4:16,  1 user,  load average: 2.23, 2.27, 2.30

asm/asm-impl.c

@@ -12,7 +12,7 @@ int64_t asm_add(int64_t a, int64_t b) {
 
 int asm_popcnt(uint64_t x) {
   int s = 0;
-  uint64_t i = 0;
+  int i = 0;
   uint32_t temp = 0;
   asm(
     ".Loop: \n"
@@ -22,8 +22,8 @@ int asm_popcnt(uint64_t x) {
     "addl %[temp], %[s] \t\n" //s+=?1
     "shlq %[i], %[x] \t\n"
 
-    "addq $1, %[i] \t\n"  //循环末尾部分
-    "cmpq $64, %[i] \t\n"
+    "addl $1, %[i] \t\n"  //循环末尾部分
+    "cmpl $64, %[i] \t\n"
     "jnge .Loop \n"
     :[s] "+r" (s), [i] "+r" (i), [x] "+r" (x), [temp]"+r"(temp)
   );