#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 getExponent(int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int base = 0, power = 0;
  printf("%s\n", "Welcome to Fast Exponentiator!");
  printf("%s", "Enter base: ");
  scanf("%d", &base);
  printf("\n%s", "Enter power: ");
  scanf("%d", &power);
  printf("\n%d to the %dth power equals %d\n", base, power,
         getExponent(base, 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    0xeac(%rip),%rdi
lea    0xea9(%rip),%rsi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecb(%rip),%rdi
lea    0xeb3(%rip),%rsi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xea5(%rip),%rdi
lea    0xea2(%rip),%rsi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8d(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@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 <getExponent@plt>
mov    -0x14(%rbp),%esi
mov    -0x10(%rbp),%edx
mov    %eax,%ecx
lea    0xe73(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
movl   $0x0,0x4(%rsp)
movl   $0x0,(%rsp)
lea    0xea7(%rip),%rdi
call   1030 <puts@plt>
lea    0xecb(%rip),%rdi
lea    0xeb3(%rip),%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeb2(%rip),%rbx
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xea1(%rip),%rdi
lea    0xe9e(%rip),%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rsp,%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0x4(%rsp),%ebx
mov    (%rsp),%ebp
mov    %ebx,%edi
mov    %ebp,%esi
call   1060 <getExponent@plt>
lea    0xe83(%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 = [4 x i8] c"%s\0A\00"
@.str.1 = [31 x i8] c"Welcome to Fast Exponentiator!\00"
@.str.2 = [3 x i8] c"%s\00"
@.str.3 = [13 x i8] c"Enter base: \00"
@.str.4 = [3 x i8] c"%d\00"
@.str.5 = [4 x i8] c"\0A%s\00"
@.str.6 = [14 x i8] c"Enter power: \00"
@.str.7 = [33 x i8] c"\0A%d to the %dth power equals %d\0A\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 ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i32* %2)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.6, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i32* %3)
%9 = load i32, i32* %2
%10 = load i32, i32* %3
%11 = load i32, i32* %2
%12 = load i32, i32* %3
%13 = call i32 @getExponent(i32 %11, i32 %12)
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.7, i64 0, i64 0), i32 %9, i32 %10, i32 %13)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [31 x i8] c"Welcome to Fast Exponentiator!\00"
@.str.2 = [3 x i8] c"%s\00"
@.str.3 = [13 x i8] c"Enter base: \00"
@.str.4 = [3 x i8] c"%d\00"
@.str.5 = [4 x i8] c"\0A%s\00"
@.str.6 = [14 x i8] c"Enter power: \00"
@.str.7 = [33 x i8] c"\0A%d to the %dth power equals %d\0A\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 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @.str.1, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.3, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i32* %1)
%8 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.6, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.4, i64 0, i64 0), i32* %2)
%10 = load i32, i32* %1
%11 = load i32, i32* %2
%12 = call i32 @getExponent(i32 %10, i32 %11)
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.7, i64 0, i64 0), i32 %10, i32 %11, i32 %12)
ret i32 0
}