#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*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ printf(char *, int, char *);
int /*<<< orphan*/ stderr;
char *strerror(int);
int main(int argc, char **argv) {
  int number;
  if (argc != 2) {
    fprintf(stderr, "modxslt-perror [0-9]+\n  Prints the string corresponding "
                    "to the given 'errno' error code\n");
    return 1;
  }
  number = atoi(argv[1]);
  printf("%d: %s\n", number, strerror(number));
  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   $0x2,-0x8(%rbp)
je     1181 <main+0x41>
mov    0x2e79(%rip),%rax
mov    (%rax),%edi
lea    0xe90(%rip),%rsi
call   1040 <fprintf@plt>
movl   $0x1,-0x4(%rbp)
jmp    11b8 <main+0x78>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1050 <atoi@plt>
mov    %eax,-0x14(%rbp)
mov    -0x14(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x14(%rbp),%edi
call   1060 <strerror@plt>
mov    -0x18(%rbp),%esi
mov    %rax,%rdx
lea    0xead(%rip),%rdi
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
jne    116d <main+0x2d>
mov    0x8(%rsi),%rdi
call   1050 <atoi@plt>
mov    %eax,%ebx
mov    %eax,%edi
call   1060 <strerror@plt>
lea    0xefa(%rip),%rdi
mov    %ebx,%esi
mov    %rax,%rdx
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbx
ret
mov    0x2e6c(%rip),%rax
mov    (%rax),%edi
lea    0xe83(%rip),%rsi
call   1040 <fprintf@plt>
mov    $0x1,%eax
pop    %rbx
ret

LLVM IR (-O0):
@stderr = global i32 0
@.str = [89 x i8] c"modxslt-perror [0-9]+\0A Prints the string corresponding to the given 'errno' error code\0A\00"
@.str.1 = [8 x i8] c"%d: %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp ne i32 %7, 2
br i1 %8, label %9, label %12
9: ; preds = %2
%10 = load i32, i32* @stderr
%11 = call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([89 x i8], [89 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
br label %21
12: ; preds = %2
%13 = load i8**, i8*** %5
%14 = getelementptr inbounds i8*, i8** %13, i64 1
%15 = load i8*, i8** %14
%16 = call i32 @atoi(i8* %15)
store i32 %16, i32* %6
%17 = load i32, i32* %6
%18 = load i32, i32* %6
%19 = call i8* @strerror(i32 %18)
%20 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i32 %17, i8* %19)
store i32 0, i32* %3
br label %21
21: ; preds = %12, %9
%22 = load i32, i32* %3
ret i32 %22
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [89 x i8] c"modxslt-perror [0-9]+\0A Prints the string corresponding to the given 'errno' error code\0A\00"
@.str.1 = [8 x i8] c"%d: %s\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %7, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([89 x i8], [89 x i8]* @.str, i64 0, i64 0))
br label %13
7: ; preds = %2
%8 = getelementptr inbounds i8*, i8** %1, i64 1
%9 = load i8*, i8** %8
%10 = tail call i32 @atoi(i8* %9)
%11 = tail call i8* @strerror(i32 %10)
%12 = tail call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0), i32 %10, i8* %11)
br label %13
13: ; preds = %7, %4
%14 = phi i32 [ 1, %4 ], [ 0, %7 ]
ret i32 %14
}