#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ debug(char *, int);
int /*<<< orphan*/ printf(char *, int);
int time(int /*<<< orphan*/ *);
int main() {
  printf("正常0: %ds\n", time(NULL));
  printf("方法1: %ds\n", time(NULL));
  debug("方法2: %ds\n", time(NULL));
  printf("方法3: %ds\n", time(NULL));
  printf("方法4: %ds\n", time(NULL));
  ;
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
xor    %eax,%eax
mov    %eax,%edi
call   1050 <time@plt>
mov    %eax,%esi
lea    0xeaf(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
mov    %eax,%edi
call   1050 <time@plt>
mov    %eax,%esi
lea    0xea6(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
mov    %eax,%edi
call   1050 <time@plt>
mov    %eax,%esi
lea    0xe9d(%rip),%rdi
call   1030 <debug@plt>
xor    %eax,%eax
mov    %eax,%edi
call   1050 <time@plt>
mov    %eax,%esi
lea    0xe94(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
mov    %eax,%edi
call   1050 <time@plt>
mov    %eax,%esi
lea    0xe8b(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
xor    %edi,%edi
call   1050 <time@plt>
lea    0xec1(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
xor    %edi,%edi
call   1050 <time@plt>
lea    0xeba(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
xor    %edi,%edi
call   1050 <time@plt>
lea    0xeb3(%rip),%rdi
mov    %eax,%esi
call   1030 <debug@plt>
xor    %edi,%edi
call   1050 <time@plt>
lea    0xeac(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
xor    %edi,%edi
call   1050 <time@plt>
lea    0xea5(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [14 x i8] c"\E6\AD\A3\E5\B8\B80: %ds\0A\00"
@.str.1 = [14 x i8] c"\E6\96\B9\E6\B3\951: %ds\0A\00"
@.str.2 = [14 x i8] c"\E6\96\B9\E6\B3\952: %ds\0A\00"
@.str.3 = [14 x i8] c"\E6\96\B9\E6\B3\953: %ds\0A\00"
@.str.4 = [14 x i8] c"\E6\96\B9\E6\B3\954: %ds\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @time(i32* null)
%3 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i32 %2)
%4 = call i32 @time(i32* null)
%5 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = call i32 @time(i32* null)
%7 = call i32 @debug(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), i32 %6)
%8 = call i32 @time(i32* null)
%9 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %8)
%10 = call i32 @time(i32* null)
%11 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.4, i64 0, i64 0), i32 %10)
ret i32 0
}

LLVM IR (-O2):
@.str = [14 x i8] c"\E6\AD\A3\E5\B8\B80: %ds\0A\00"
@.str.1 = [14 x i8] c"\E6\96\B9\E6\B3\951: %ds\0A\00"
@.str.2 = [14 x i8] c"\E6\96\B9\E6\B3\952: %ds\0A\00"
@.str.3 = [14 x i8] c"\E6\96\B9\E6\B3\953: %ds\0A\00"
@.str.4 = [14 x i8] c"\E6\96\B9\E6\B3\954: %ds\0A\00"
define i32 @main() {
%1 = tail call i32 @time(i32* null)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = tail call i32 @time(i32* null)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = tail call i32 @time(i32* null)
%6 = tail call i32 @debug(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = tail call i32 @time(i32* null)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %7)
%9 = tail call i32 @time(i32* null)
%10 = tail call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.4, i64 0, i64 0), i32 %9)
ret i32 0
}