#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 myPow(int, int);
int myPow2(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int num = 0;
  int power = 0;
  printf("input num：");
  scanf("%d", &num);
  printf("input pow：");
  scanf("%d", &power);
  printf("%d pow：%d\\n", num, myPow2(num));
  printf("%d  %d  %d\\n", num, power, myPow(num, power));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xe9c(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe9b(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1060 <scanf@plt>
lea    0xe8e(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe7d(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1060 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x8(%rbp),%edi
call   1030 <myPow2@plt>
mov    -0x18(%rbp),%esi
mov    %eax,%edx
lea    0xe6a(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0xc(%rbp),%eax
mov    %eax,-0x10(%rbp)
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1050 <myPow@plt>
mov    -0x14(%rbp),%esi
mov    -0x10(%rbp),%edx
mov    %eax,%ecx
lea    0xe4b(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
movl   $0x0,(%rsp)
movl   $0x0,0x4(%rsp)
lea    0xea7(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xea6(%rip),%rbx
mov    %rsp,%rsi
mov    %rbx,%rdi
call   1060 <scanf@plt>
lea    0xe97(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1060 <scanf@plt>
mov    (%rsp),%ebx
mov    %ebx,%edi
call   1030 <myPow2@plt>
lea    0xe7f(%rip),%rdi
mov    %ebx,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    (%rsp),%ebx
mov    0x4(%rsp),%ebp
mov    %ebx,%edi
mov    %ebp,%esi
call   1050 <myPow@plt>
lea    0xe6b(%rip),%rdi
mov    %ebx,%esi
mov    %ebp,%edx
mov    %eax,%ecx
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [13 x i8] c"input num\EF\BC\9A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [13 x i8] c"input pow\EF\BC\9A\00"
@.str.3 = [14 x i8] c"%d pow\EF\BC\9A%d\\n\00"
@.str.4 = [13 x i8] c"%d %d %d\\n\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %3)
%8 = load i32, i32* %2
%9 = load i32, i32* %2
%10 = call i32 @myPow2(i32 %9)
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %8, i32 %10)
%12 = load i32, i32* %2
%13 = load i32, i32* %3
%14 = load i32, i32* %2
%15 = load i32, i32* %3
%16 = call i32 @myPow(i32 %14, i32 %15)
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0), i32 %12, i32 %13, i32 %16)
ret i32 0
}

LLVM IR (-O2):
@.str = [13 x i8] c"input num\EF\BC\9A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [13 x i8] c"input pow\EF\BC\9A\00"
@.str.3 = [14 x i8] c"%d pow\EF\BC\9A%d\\n\00"
@.str.4 = [13 x i8] c"%d %d %d\\n\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%4 = bitcast i32* %2 to i8*
store i32 0, i32* %2
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%9 = load i32, i32* %1
%10 = call i32 @myPow2(i32 %9)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str.3, i64 0, i64 0), i32 %9, i32 %10)
%12 = load i32, i32* %1
%13 = load i32, i32* %2
%14 = call i32 @myPow(i32 %12, i32 %13)
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str.4, i64 0, i64 0), i32 %12, i32 %13, i32 %14)
ret i32 0
}