#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 atoi(char *);
int /*<<< orphan*/ printf(char *, ...);
int main(int argc, char *argv[]) {
  int total = 0;
  int i = 1;
  int j = 2;
  if (argc < 3) {
    printf("Error\n");
    return (1);
  }
  total = atoi(argv[i]) * atoi(argv[j]);
  printf("%d\n", total);
  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   $0x0,-0x14(%rbp)
movl   $0x1,-0x18(%rbp)
movl   $0x2,-0x1c(%rbp)
cmpl   $0x3,-0x8(%rbp)
jge    116f <main+0x4f>
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11b7 <main+0x97>
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
call   1040 <atoi@plt>
mov    %eax,-0x20(%rbp)
mov    -0x10(%rbp),%rax
movslq -0x1c(%rbp),%rcx
mov    (%rax,%rcx,8),%rdi
call   1040 <atoi@plt>
mov    %eax,%ecx
mov    -0x20(%rbp),%eax
imul   %ecx,%eax
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%esi
lea    0xe5e(%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   %rbp
push   %rbx
push   %rax
cmp    $0x2,%edi
jg     114b <main+0x1b>
lea    0xec5(%rip),%rdi
call   1030 <puts@plt>
mov    $0x1,%ebx
jmp    1177 <main+0x47>
mov    %rsi,%rbx
mov    0x8(%rsi),%rdi
call   1050 <atoi@plt>
mov    %eax,%ebp
mov    0x10(%rbx),%rdi
call   1050 <atoi@plt>
imul   %eax,%ebp
lea    0xe94(%rip),%rdi
xor    %ebx,%ebx
mov    %ebp,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [7 x i8] c"Error\0A\00"
@.str.1 = [4 x i8] c"%d\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 0, i32* %6
store i32 1, i32* %7
store i32 2, i32* %8
%9 = load i32, i32* %4
%10 = icmp slt i32 %9, 3
br i1 %10, label %11, label %13
11: ; preds = %2
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %29
13: ; preds = %2
%14 = load i8**, i8*** %5
%15 = load i32, i32* %7
%16 = sext i32 %15 to i64
%17 = getelementptr inbounds i8*, i8** %14, i64 %16
%18 = load i8*, i8** %17
%19 = call i32 @atoi(i8* %18)
%20 = load i8**, i8*** %5
%21 = load i32, i32* %8
%22 = sext i32 %21 to i64
%23 = getelementptr inbounds i8*, i8** %20, i64 %22
%24 = load i8*, i8** %23
%25 = call i32 @atoi(i8* %24)
%26 = mul nsw i32 %19, %25
store i32 %26, i32* %6
%27 = load i32, i32* %6
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %27)
store i32 0, i32* %3
br label %29
29: ; preds = %13, %11
%30 = load i32, i32* %3
ret i32 %30
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%d\0A\00"
@str = [6 x i8] c"Error\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 ([6 x i8], [6 x i8]* @str, i64 0, i64 0))
br label %15
6: ; preds = %2
%7 = getelementptr inbounds i8*, i8** %1, i64 1
%8 = load i8*, i8** %7
%9 = tail call i32 @atoi(i8* %8)
%10 = getelementptr inbounds i8*, i8** %1, i64 2
%11 = load i8*, i8** %10
%12 = tail call i32 @atoi(i8* %11)
%13 = mul nsw i32 %12, %9
%14 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %13)
br label %15
15: ; preds = %6, %4
%16 = phi i32 [ 1, %4 ], [ 0, %6 ]
ret i32 %16
}