#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*/ EXIT_FAILURE;
int O_NONBLOCK;
int O_RDONLY;
int /*<<< orphan*/ errno;
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *, int, char *,
                           char *);
int open(char *, int);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ stderr;
char *strerror(int /*<<< orphan*/);
int main(void) {
  int fd;
  if ((fd = open("my.p", O_RDONLY | O_NONBLOCK)) == -1)
    do {
      fprintf(stderr, "[%s][%d]:%s %s\n",
              "/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/"
              "2022-01-22/02-19-57/repos/drsin/linuxCoreLearn/refs/heads/"
              "master/apue/day0a/day0a/openr.c",
              19, "open", strerror(errno));
      exit(EXIT_FAILURE);
    } while (0);
  printf("open successful!\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e7a(%rip),%rax
mov    (%rax),%esi
mov    0x2e79(%rip),%rax
or     (%rax),%esi
lea    0xe88(%rip),%rdi
call   1050 <open@plt>
mov    %eax,-0x8(%rbp)
cmp    $0xffffffff,%eax
jne    11db <main+0x8b>
jmp    118e <main+0x3e>
mov    0x2e3b(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0xc(%rbp)
mov    0x2e27(%rip),%rax
mov    (%rax),%edi
call   1070 <strerror@plt>
mov    -0xc(%rbp),%edi
mov    %rax,%r9
lea    0xe50(%rip),%rsi
lea    0xe59(%rip),%rdx
mov    $0x13,%ecx
lea    0xee7(%rip),%r8
call   1040 <fprintf@plt>
mov    0x2dec(%rip),%rax
mov    (%rax),%edi
call   1060 <exit@plt>
lea    0xed2(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    0x2e88(%rip),%rax
mov    0x2e89(%rip),%rcx
mov    (%rcx),%esi
or     (%rax),%esi
lea    0xe96(%rip),%rdi
call   1050 <open@plt>
cmp    $0xffffffff,%eax
je     1184 <main+0x34>
lea    0xf39(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rbx
ret
mov    0x2e45(%rip),%rax
mov    (%rax),%ebx
mov    0x2e34(%rip),%rax
mov    (%rax),%edi
call   1070 <strerror@plt>
lea    0xe63(%rip),%rsi
lea    0xe6c(%rip),%rdx
lea    0xeff(%rip),%r8
mov    %ebx,%edi
mov    $0x13,%ecx
mov    %rax,%r9
call   1040 <fprintf@plt>
mov    0x2dfa(%rip),%rax
mov    (%rax),%edi
call   1060 <exit@plt>

LLVM IR (-O0):
@.str = [5 x i8] c"my.p\00"
@O_RDONLY = global i32 0
@O_NONBLOCK = global i32 0
@stderr = global i32 0
@.str.1 = [16 x i8] c"[%s][%d]:%s %s\0A\00"
@.str.2 = [154 x i8] c"/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/drsin/linuxCoreLearn/refs/heads/master/apue/day0a/day0a/openr.c\00"
@.str.3 = [5 x i8] c"open\00"
@errno = global i32 0
@EXIT_FAILURE = global i32 0
@.str.4 = [18 x i8] c"open successful!\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = load i32, i32* @O_RDONLY
%4 = load i32, i32* @O_NONBLOCK
%5 = or i32 %3, %4
%6 = call i32 @open(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %5)
store i32 %6, i32* %2
%7 = icmp eq i32 %6, -1
br i1 %7, label %8, label %17
8: ; preds = %0
br label %9
9: ; preds = %8
%10 = load i32, i32* @stderr
%11 = load i32, i32* @errno
%12 = call i8* @strerror(i32 %11)
%13 = call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([154 x i8], [154 x i8]* @.str.2, i64 0, i64 0), i32 19, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8* %12)
%14 = load i32, i32* @EXIT_FAILURE
%15 = call i32 @exit(i32 %14)
unreachable
16: ; No predecessors!
br label %17
17: ; preds = %16, %0
%18 = call i32 @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [5 x i8] c"my.p\00"
@O_RDONLY = global i32 0
@O_NONBLOCK = global i32 0
@stderr = global i32 0
@.str.1 = [16 x i8] c"[%s][%d]:%s %s\0A\00"
@.str.2 = [154 x i8] c"/scratch/repos/new/home/jordi_armengol_estape/c-scraper/outputs/2022-01-22/02-19-57/repos/drsin/linuxCoreLearn/refs/heads/master/apue/day0a/day0a/openr.c\00"
@.str.3 = [5 x i8] c"open\00"
@errno = global i32 0
@EXIT_FAILURE = global i32 0
@str = [17 x i8] c"open successful!\00"
define i32 @main() {
%1 = load i32, i32* @O_RDONLY
%2 = load i32, i32* @O_NONBLOCK
%3 = or i32 %2, %1
%4 = tail call i32 @open(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %3)
%5 = icmp eq i32 %4, -1
br i1 %5, label %6, label %13
6: ; preds = %0
%7 = load i32, i32* @stderr
%8 = load i32, i32* @errno
%9 = tail call i8* @strerror(i32 %8)
%10 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([154 x i8], [154 x i8]* @.str.2, i64 0, i64 0), i32 19, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8* %9)
%11 = load i32, i32* @EXIT_FAILURE
%12 = tail call i32 @exit(i32 %11)
unreachable
13: ; preds = %0
%14 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str, i64 0, i64 0))
ret i32 0
}