#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 *);
int main(void) {
  int count, sum, days;
  count = 0;
  sum = 0;
  printf("How many days have you worked for? ");
  scanf("%d", &days);
  while (count++ < days) {
    sum = sum + count;
  }
  printf("You've worked for %d days, your salary is $%d.\n", days, sum);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed2(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,%ecx
add    $0x1,%ecx
mov    %ecx,-0x8(%rbp)
cmp    -0x10(%rbp),%eax
jge    117d <main+0x5d>
mov    -0xc(%rbp),%eax
add    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
jmp    115b <main+0x3b>
mov    -0x10(%rbp),%esi
mov    -0xc(%rbp),%edx
lea    0xe9d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeee(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%esi
test   %esi,%esi
mov    $0x0,%eax
cmovg  %esi,%eax
lea    -0x1(%rax),%edx
imul   %rax,%rdx
shr    %rdx
add    %eax,%edx
lea    0xec6(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [36 x i8] c"How many days have you worked for? \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [48 x i8] c"You've worked for %d days, your salary is $%d.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([36 x i8], [36 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* %4)
br label %7
7: ; preds = %12, %0
%8 = load i32, i32* %2
%9 = add nsw i32 %8, 1
store i32 %9, i32* %2
%10 = load i32, i32* %4
%11 = icmp slt i32 %8, %10
br i1 %11, label %12, label %16
12: ; preds = %7
%13 = load i32, i32* %3
%14 = load i32, i32* %2
%15 = add nsw i32 %13, %14
store i32 %15, i32* %3
br label %7
16: ; preds = %7
%17 = load i32, i32* %4
%18 = load i32, i32* %3
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.2, i64 0, i64 0), i32 %17, i32 %18)
ret i32 0
}

LLVM IR (-O2):
@.str = [36 x i8] c"How many days have you worked for? \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [48 x i8] c"You've worked for %d days, your salary is $%d.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([36 x i8], [36 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = call i32 @llvm.smax.i32(i32 %5, i32 0)
%7 = zext i32 %6 to i33
%8 = add nsw i32 %6, -1
%9 = zext i32 %8 to i33
%10 = mul i33 %7, %9
%11 = lshr i33 %10, 1
%12 = trunc i33 %11 to i32
%13 = add i32 %6, %12
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 x i8]* @.str.2, i64 0, i64 0), i32 %5, i32 %13)
ret i32 0
}