#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 *);
int main(void) {
  int value1, value2;
  printf("Enter two numbers: ");
  scanf("%i%i", &value1, &value2);
  if (value2)
    printf("%i / %i = %.3f\n", value1, value2, (float)value1 / value2);
  else
    printf("Division by zero.\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed0(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1040 <scanf@plt>
cmpl   $0x0,-0xc(%rbp)
je     1186 <main+0x66>
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
cvtsi2ssl -0x8(%rbp),%xmm0
cvtsi2ssl -0xc(%rbp),%xmm1
divss  %xmm1,%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe9f(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
jmp    1194 <main+0x74>
lea    0xe9c(%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    0xec8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xece(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1050 <scanf@plt>
mov    (%rsp),%edx
test   %edx,%edx
je     117e <main+0x4e>
mov    0x4(%rsp),%esi
cvtsi2ss %esi,%xmm0
cvtsi2ss %edx,%xmm1
divss  %xmm1,%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xea4(%rip),%rdi
mov    $0x1,%al
call   1040 <printf@plt>
jmp    118a <main+0x5a>
lea    0xea4(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Enter two numbers: \00"
@.str.1 = [5 x i8] c"%i%i\00"
@.str.2 = [16 x i8] c"%i / %i = %.3f\0A\00"
@.str.3 = [19 x i8] c"Division by zero.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3)
%6 = load i32, i32* %3
%7 = icmp ne i32 %6, 0
br i1 %7, label %8, label %18
8: ; preds = %0
%9 = load i32, i32* %2
%10 = load i32, i32* %3
%11 = load i32, i32* %2
%12 = sitofp i32 %11 to float
%13 = load i32, i32* %3
%14 = sitofp i32 %13 to float
%15 = fdiv float %12, %14
%16 = fpext float %15 to double
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0), i32 %9, i32 %10, double %16)
br label %20
18: ; preds = %0
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0))
br label %20
20: ; preds = %18, %8
ret i32 0
}

LLVM IR (-O2):
@.str = [20 x i8] c"Enter two numbers: \00"
@.str.1 = [5 x i8] c"%i%i\00"
@.str.2 = [16 x i8] c"%i / %i = %.3f\0A\00"
@str = [18 x i8] c"Division by zero.\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32* %1, i32* %2)
%7 = load i32, i32* %2
%8 = icmp eq i32 %7, 0
br i1 %8, label %16, label %9
9: ; preds = %0
%10 = load i32, i32* %1
%11 = sitofp i32 %10 to float
%12 = sitofp i32 %7 to float
%13 = fdiv float %11, %12
%14 = fpext float %13 to double
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0), i32 %10, i32 %7, double %14)
br label %18
16: ; preds = %0
%17 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0))
br label %18
18: ; preds = %16, %9
ret i32 0
}