#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 main(int argc, char const *argv[]) {
  int ten = 10;
  int two = 2;
  printf("Doing it right:\n");
  printf("%d minus %d is %d\n", ten, 2, ten - two);
  printf("Doing it wrong:\n");
  printf("%d minus %d is %d\n", ten);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
movl   $0xa,-0x14(%rbp)
movl   $0x2,-0x18(%rbp)
lea    0xec5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%esi
mov    -0x14(%rbp),%ecx
sub    -0x18(%rbp),%ecx
lea    0xebf(%rip),%rdi
mov    $0x2,%edx
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x14(%rbp),%esi
lea    0xe9b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
lea    0xeeb(%rip),%rdi
call   1030 <puts@plt>
lea    0xecc(%rip),%rbx
mov    %rbx,%rdi
mov    $0xa,%esi
mov    $0x2,%edx
mov    $0x8,%ecx
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xecf(%rip),%rdi
call   1030 <puts@plt>
mov    %rbx,%rdi
mov    $0xa,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [17 x i8] c"Doing it right:\0A\00"
@.str.1 = [19 x i8] c"%d minus %d is %d\0A\00"
@.str.2 = [17 x i8] c"Doing it wrong:\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 10, i32* %6
store i32 2, i32* %7
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0))
%9 = load i32, i32* %6
%10 = load i32, i32* %6
%11 = load i32, i32* %7
%12 = sub nsw i32 %10, %11
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %9, i32 2, i32 %12)
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0))
%15 = load i32, i32* %6
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 %15)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [19 x i8] c"%d minus %d is %d\0A\00"
@str = [16 x i8] c"Doing it right:\00"
@str.3 = [16 x i8] c"Doing it wrong:\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 10, i32 2, i32 8)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @str.3, i64 0, i64 0))
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @.str.1, i64 0, i64 0), i32 10)
ret i32 0
}