#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 */
typedef int /*<<< orphan*/ mpz_t;

/* Variables and functions */
int /*<<< orphan*/ mpz_add(int /*<<< orphan*/, int /*<<< orphan*/,
                           int /*<<< orphan*/);
char *mpz_get_str(int /*<<< orphan*/ *, int, int /*<<< orphan*/);
int /*<<< orphan*/ mpz_init_set_str(int /*<<< orphan*/, char *, int);
int /*<<< orphan*/ printf(char *, ...);
int main(int argc, char *argv[]) {
  mpz_t a, b;
  if (argc < 3) {
    printf("Please supply two numbers to add.\n");
    return 1;
  }
  mpz_init_set_str(a, argv[1], 10);
  mpz_init_set_str(b, argv[2], 10);
  mpz_add(a, a, b);
  printf("0x%s\n", mpz_get_str(NULL, 16, a));
  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)
cmpl   $0x3,-0x8(%rbp)
jge    117a <main+0x3a>
lea    0xe99(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11db <main+0x9b>
mov    -0x14(%rbp),%edi
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rsi
mov    $0xa,%edx
call   1040 <mpz_init_set_str@plt>
mov    -0x18(%rbp),%edi
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rsi
mov    $0xa,%edx
call   1040 <mpz_init_set_str@plt>
mov    -0x14(%rbp),%edi
mov    -0x14(%rbp),%esi
mov    -0x18(%rbp),%edx
call   1060 <mpz_add@plt>
mov    -0x14(%rbp),%edx
xor    %eax,%eax
mov    %eax,%edi
mov    $0x10,%esi
call   1050 <mpz_get_str@plt>
mov    %rax,%rsi
lea    0xe56(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
cmp    $0x2,%edi
jg     1169 <main+0x19>
lea    0xea9(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%ebx
jmp    11ac <main+0x5c>
mov    %rsi,%rbx
mov    0x8(%rsi),%rsi
mov    $0xa,%edx
call   1050 <mpz_init_set_str@plt>
mov    0x10(%rbx),%rsi
mov    $0xa,%edx
call   1050 <mpz_init_set_str@plt>
call   1070 <mpz_add@plt>
xor    %ebx,%ebx
xor    %edi,%edi
mov    $0x10,%esi
call   1060 <mpz_get_str@plt>
lea    0xe5e(%rip),%rdi
mov    %rax,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [35 x i8] c"Please supply two numbers to add.\0A\00"
@.str.1 = [6 x i8] c"0x%s\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
%8 = load i32, i32* %4
%9 = icmp slt i32 %8, 3
br i1 %9, label %10, label %12
10: ; preds = %2
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %30
12: ; preds = %2
%13 = load i32, i32* %6
%14 = load i8**, i8*** %5
%15 = getelementptr inbounds i8*, i8** %14, i64 1
%16 = load i8*, i8** %15
%17 = call i32 @mpz_init_set_str(i32 %13, i8* %16, i32 10)
%18 = load i32, i32* %7
%19 = load i8**, i8*** %5
%20 = getelementptr inbounds i8*, i8** %19, i64 2
%21 = load i8*, i8** %20
%22 = call i32 @mpz_init_set_str(i32 %18, i8* %21, i32 10)
%23 = load i32, i32* %6
%24 = load i32, i32* %6
%25 = load i32, i32* %7
%26 = call i32 @mpz_add(i32 %23, i32 %24, i32 %25)
%27 = load i32, i32* %6
%28 = call i8* @mpz_get_str(i32* null, i32 16, i32 %27)
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %28)
store i32 0, i32* %3
br label %30
30: ; preds = %12, %10
%31 = load i32, i32* %3
ret i32 %31
}

LLVM IR (-O2):
@.str.1 = [6 x i8] c"0x%s\0A\00"
@str = [34 x i8] c"Please supply two numbers to add.\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp slt i32 %0, 3
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str, i64 0, i64 0))
br label %16
6: ; preds = %2
%7 = getelementptr inbounds i8*, i8** %1, i64 1
%8 = load i8*, i8** %7
%9 = tail call i32 @mpz_init_set_str(i32 undef, i8* %8, i32 10)
%10 = getelementptr inbounds i8*, i8** %1, i64 2
%11 = load i8*, i8** %10
%12 = tail call i32 @mpz_init_set_str(i32 undef, i8* %11, i32 10)
%13 = tail call i32 @mpz_add(i32 undef, i32 undef, i32 undef)
%14 = tail call i8* @mpz_get_str(i32* null, i32 16, i32 undef)
%15 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %14)
br label %16
16: ; preds = %6, %4
%17 = phi i32 [ 1, %4 ], [ 0, %6 ]
ret i32 %17
}