#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 */
double pow(double, double);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, double *, double *);
void power() {
  double result, num1, num2;
  printf("+-------*--------*--------*--------*-------+\n");
  printf("Power!\n please input two numbers:");
  scanf("%lf %lf", &num1, &num2);
  result = pow(num1, num2);
  printf("pow(%lf, %lf) = %lf\n", num1, num2, result);
  printf("+-------*--------*--------*--------*-------+\n");
}


x86 assembly (clang, -O0):
<power>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
lea    0xec1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee1(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef5(%rip),%rdi
lea    -0x10(%rbp),%rsi
lea    -0x18(%rbp),%rdx
call   1040 <scanf@plt>
movsd  -0x10(%rbp),%xmm0
movsd  -0x18(%rbp),%xmm1
call   1050 <pow@plt>
movsd  %xmm0,-0x8(%rbp)
movsd  -0x10(%rbp),%xmm0
movsd  -0x18(%rbp),%xmm1
movsd  -0x8(%rbp),%xmm2
lea    0xec6(%rip),%rdi
mov    $0x3,%al
call   1030 <printf@plt>
lea    0xe60(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<power>:
push   %rbx
sub    $0x10,%rsp
lea    0xef3(%rip),%rbx
mov    %rbx,%rdi
call   1030 <puts@plt>
lea    0xea5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeb9(%rip),%rdi
lea    0x8(%rsp),%rsi
mov    %rsp,%rdx
call   1050 <scanf@plt>
movsd  0x8(%rsp),%xmm0
movsd  (%rsp),%xmm1
call   1060 <pow@plt>
movaps %xmm0,%xmm2
movsd  0x8(%rsp),%xmm0
movsd  (%rsp),%xmm1
lea    0xe8f(%rip),%rdi
mov    $0x3,%al
call   1040 <printf@plt>
mov    %rbx,%rdi
call   1030 <puts@plt>
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [46 x i8] c"+-------*--------*--------*--------*-------+\0A\00"
@.str.1 = [34 x i8] c"Power!\0A please input two numbers:\00"
@.str.2 = [8 x i8] c"%lf %lf\00"
@.str.3 = [21 x i8] c"pow(%lf, %lf) = %lf\0A\00"
define void @power() {
%1 = alloca double
%2 = alloca double
%3 = alloca double
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0), double* %2, double* %3)
%7 = load double, double* %2
%8 = load double, double* %3
%9 = call double @pow(double %7, double %8)
store double %9, double* %1
%10 = load double, double* %2
%11 = load double, double* %3
%12 = load double, double* %1
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0), double %10, double %11, double %12)
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [34 x i8] c"Power!\0A please input two numbers:\00"
@.str.2 = [8 x i8] c"%lf %lf\00"
@.str.3 = [21 x i8] c"pow(%lf, %lf) = %lf\0A\00"
@str.4 = [45 x i8] c"+-------*--------*--------*--------*-------+\00"
define void @power() {
%1 = alloca double
%2 = alloca double
%3 = bitcast double* %1 to i8*
%4 = bitcast double* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @str.4, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0), double* %1, double* %2)
%8 = load double, double* %1
%9 = load double, double* %2
%10 = call double @pow(double %8, double %9)
%11 = load double, double* %1
%12 = load double, double* %2
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0), double %11, double %12, double %10)
%14 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @str.4, i64 0, i64 0))
ret void
}