Objdump

See asm branching

objdump -Mintel -d --no-addresses --no-show-raw-insn --visualize-jumps loop-1-clang.c.o

run_switches:
              xor    eax, eax
loop:
      ╭────➤ movsx  ecx, byte ptr [rdi]
      │      test   ecx, ecx
      │ ╭─── je     ret
      │ │    add    rdi, 1
      │ │    cmp    ecx, 'p'
      │ │ ╭─ je     p
      │ │ │  cmp    ecx, 's'
      ├─│─│─ jne    loop
      │ │ │  add    eax, 1
      ├─│─│─ jmp    loop
p:    │ │ ╰➤ add    eax, -1
      ╰─│─── jmp    loop
ret:    ╰──➤ ret

With the related loop-1-clang.c following code

int run_switches(char *input) {
  int res = 0;
  while (true) {
    char c = *input++;
    switch (c) {
      case '\0':
        return res;
      case 's':
        res += 1;
        break;
      case 'p':
        res -= 1;
        break;
      default:
        break;
    }
  }
}

source 1, source 2