#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*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, ...);
int main() {
  int n;
  printf("Enter a positive number: ");
  scanf("%d", &n);
  int i;
  double sum = 0, currentNum;
  for (i = 1; i <= n; i++) {
    printf("Please enter number %d: ", i);
    scanf("%lf", &currentNum);
    sum += currentNum;
  }
  printf("Sum = %.1f", sum);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
xorps  %xmm0,%xmm0
movsd  %xmm0,-0x18(%rbp)
movl   $0x1,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     11aa <main+0x8a>
mov    -0xc(%rbp),%esi
lea    0xea9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb4(%rip),%rdi
lea    -0x20(%rbp),%rsi
mov    $0x0,%al
call   1040 <scanf@plt>
movsd  -0x20(%rbp),%xmm0
addsd  -0x18(%rbp),%xmm0
movsd  %xmm0,-0x18(%rbp)
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    115e <main+0x3e>
movsd  -0x18(%rbp),%xmm0
lea    0xe84(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %rbx
sub    $0x18,%rsp
lea    0xecf(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xedb(%rip),%rdi
lea    0x4(%rsp),%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
cmpl   $0x0,0x4(%rsp)
jle    11a6 <main+0x86>
xorpd  %xmm0,%xmm0
lea    0xec0(%rip),%r14
lea    0xed2(%rip),%r15
lea    0x10(%rsp),%rbx
xor    %ebp,%ebp
nopl   0x0(%rax,%rax,1)
movsd  %xmm0,0x8(%rsp)
add    $0x1,%ebp
mov    %r14,%rdi
mov    %ebp,%esi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <scanf@plt>
movsd  0x8(%rsp),%xmm0
addsd  0x10(%rsp),%xmm0
cmp    0x4(%rsp),%ebp
jl     1170 <main+0x50>
jmp    11aa <main+0x8a>
xorpd  %xmm0,%xmm0
lea    0xe89(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [26 x i8] c"Enter a positive number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [25 x i8] c"Please enter number %d: \00"
@.str.3 = [4 x i8] c"%lf\00"
@.str.4 = [11 x i8] c"Sum = %.1f\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca double
%5 = alloca double
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%7 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
store double 0.000000e+00, double* %4
store i32 1, i32* %3
br label %8
8: ; preds = %19, %0
%9 = load i32, i32* %3
%10 = load i32, i32* %2
%11 = icmp sle i32 %9, %10
br i1 %11, label %12, label %22
12: ; preds = %8
%13 = load i32, i32* %3
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0), i32 %13)
%15 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), double* %5)
%16 = load double, double* %5
%17 = load double, double* %4
%18 = fadd double %17, %16
store double %18, double* %4
br label %19
19: ; preds = %12
%20 = load i32, i32* %3
%21 = add nsw i32 %20, 1
store i32 %21, i32* %3
br label %8
22: ; preds = %8
%23 = load double, double* %4
%24 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.4, i64 0, i64 0), double %23)
ret i32 0
}

LLVM IR (-O2):
@.str = [26 x i8] c"Enter a positive number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [25 x i8] c"Please enter number %d: \00"
@.str.3 = [4 x i8] c"%lf\00"
@.str.4 = [11 x i8] c"Sum = %.1f\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca double
%3 = bitcast i32* %1 to i8*
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%6 = bitcast double* %2 to i8*
%7 = load i32, i32* %1
%8 = icmp slt i32 %7, 1
br i1 %8, label %19, label %9
9: ; preds = %0, %9
%10 = phi double [ %15, %9 ], [ 0.000000e+00, %0 ]
%11 = phi i32 [ %16, %9 ], [ 1, %0 ]
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0), i32 %11)
%13 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), double* %2)
%14 = load double, double* %2
%15 = fadd double %10, %14
%16 = add nuw nsw i32 %11, 1
%17 = load i32, i32* %1
%18 = icmp slt i32 %11, %17
br i1 %18, label %9, label %19
19: ; preds = %9, %0
%20 = phi double [ 0.000000e+00, %0 ], [ %15, %9 ]
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.4, i64 0, i64 0), double %20)
ret i32 0
}