#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 add(int, int);
int /*<<< orphan*/ printf(char *, int);
int sub(int, int);
int main(void) {
  int a = 3;
  int b = 2;
  printf("a=%d\n", a);
  printf("b=%d\n", b);
  printf("a+b=%d\n", add(a, b));
  printf("a-b=%d\n", sub(a, b));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x3,-0x8(%rbp)
movl   $0x2,-0xc(%rbp)
mov    -0x8(%rbp),%esi
lea    0xea9(%rip),%rdi
call   1040 <printf@plt>
mov    -0xc(%rbp),%esi
lea    0xea2(%rip),%rdi
call   1040 <printf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1030 <add@plt>
mov    %eax,%esi
lea    0xe87(%rip),%rdi
call   1040 <printf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1050 <sub@plt>
mov    %eax,%esi
lea    0xe76(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xec8(%rip),%rdi
mov    $0x3,%esi
call   1040 <printf@plt>
lea    0xebf(%rip),%rdi
mov    $0x2,%esi
call   1040 <printf@plt>
mov    $0x3,%edi
mov    $0x2,%esi
call   1030 <add@plt>
lea    0xe9d(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
mov    $0x3,%edi
mov    $0x2,%esi
call   1050 <sub@plt>
lea    0xe88(%rip),%rdi
mov    %eax,%esi
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [6 x i8] c"a=%d\0A\00"
@.str.1 = [6 x i8] c"b=%d\0A\00"
@.str.2 = [8 x i8] c"a+b=%d\0A\00"
@.str.3 = [8 x i8] c"a-b=%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 3, i32* %2
store i32 2, i32* %3
%4 = load i32, i32* %2
%5 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 %4)
%6 = load i32, i32* %3
%7 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32 %6)
%8 = load i32, i32* %2
%9 = load i32, i32* %3
%10 = call i32 @add(i32 %8, i32 %9)
%11 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0), i32 %10)
%12 = load i32, i32* %2
%13 = load i32, i32* %3
%14 = call i32 @sub(i32 %12, i32 %13)
%15 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i32 %14)
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"a=%d\0A\00"
@.str.1 = [6 x i8] c"b=%d\0A\00"
@.str.2 = [8 x i8] c"a+b=%d\0A\00"
@.str.3 = [8 x i8] c"a-b=%d\0A\00"
define i32 @main() {
%1 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i32 3)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32 2)
%3 = tail call i32 @add(i32 3, i32 2)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.2, i64 0, i64 0), i32 %3)
%5 = tail call i32 @sub(i32 3, i32 2)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0), i32 %5)
ret i32 0
}