#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 */
typedef struct TYPE_4__ TYPE_2__;
typedef struct TYPE_3__ TYPE_1__;

/* Type definitions */
typedef int /*<<< orphan*/ timer_t;
struct sigevent {
  int /*<<< orphan*/ sigev_signo;
  int /*<<< orphan*/ sigev_notify;
};
struct TYPE_4__ {
  int tv_sec;
  scalar_t__ tv_nsec;
};
struct TYPE_3__ {
  scalar_t__ tv_nsec;
  scalar_t__ tv_sec;
};
struct itimerspec {
  TYPE_2__ it_value;
  TYPE_1__ it_interval;
};

/* Variables and functions */
int /*<<< orphan*/ CLOCK_REALTIME;
int /*<<< orphan*/ SIGCONT;
int /*<<< orphan*/ SIGEV_SIGNAL;
int /*<<< orphan*/ perror(char *);
int /*<<< orphan*/ printf(char *, ...);
scalar_t__ timer_create(int /*<<< orphan*/, struct sigevent *,
                        int /*<<< orphan*/ *);
scalar_t__ timer_gettime(int /*<<< orphan*/, struct itimerspec *);
scalar_t__ timer_settime(int /*<<< orphan*/, int /*<<< orphan*/,
                         struct itimerspec *, int /*<<< orphan*/ *);
int main(void) {
  struct sigevent ev;
  timer_t tid;
  struct itimerspec itsset, itsget;
  int delta;
  ev.sigev_notify = SIGEV_SIGNAL;
  ev.sigev_signo = SIGCONT;
  itsset.it_interval.tv_sec = 0;
  itsset.it_interval.tv_nsec = 0;
  itsset.it_value.tv_sec = 5;
  itsset.it_value.tv_nsec = 0;
  if (timer_create(CLOCK_REALTIME, &ev, &tid) != 0) {
    perror("timer_create() did not return success\n");
    return 2;
  }
  if (timer_settime(tid, 0, &itsset, NULL) != 0) {
    perror("timer_settime() did not return success\n");
    return 2;
  }
  if (timer_gettime(tid, &itsget) != 0) {
    perror("timer_gettime() did not return success\n");
    return 2;
  }
  delta = itsset.it_value.tv_sec - itsget.it_value.tv_sec;
  if (delta < 0) {
    printf("FAIL:  timer_gettime() value > timer_settime()\n");
    printf("%d > %d\n", (int)itsget.it_value.tv_sec,
           (int)itsset.it_value.tv_sec);
    return 1;
  }
  if (delta <= 1) {
    printf("Test PASSED\n");
    return 0;
  } else {
    printf("FAIL:  timer_gettime() value !~= timer_settime()\n");
    printf("%d !~= %d\n", (int)itsget.it_value.tv_sec,
           (int)itsset.it_value.tv_sec);
    return 1;
  }
  printf("This code should not be executed\n");
  return 2;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x60,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e7a(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0xc(%rbp)
mov    0x2e76(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x10(%rbp)
movq   $0x0,-0x20(%rbp)
movq   $0x0,-0x28(%rbp)
movl   $0x5,-0x38(%rbp)
movq   $0x0,-0x30(%rbp)
mov    0x2e33(%rip),%rax
mov    (%rax),%edi
lea    -0x10(%rbp),%rsi
lea    -0x14(%rbp),%rdx
call   1040 <timer_create@plt>
cmp    $0x0,%rax
je     11ce <main+0x7e>
lea    0xe43(%rip),%rdi
call   1070 <perror@plt>
movl   $0x2,-0x4(%rbp)
jmp    12be <main+0x16e>
mov    -0x14(%rbp),%edi
xor    %esi,%esi
lea    -0x38(%rbp),%rdx
xor    %eax,%eax
mov    %eax,%ecx
call   1030 <timer_settime@plt>
cmp    $0x0,%rax
je     1202 <main+0xb2>
lea    0xe36(%rip),%rdi
call   1070 <perror@plt>
movl   $0x2,-0x4(%rbp)
jmp    12be <main+0x16e>
mov    -0x14(%rbp),%edi
lea    -0x58(%rbp),%rsi
call   1060 <timer_gettime@plt>
cmp    $0x0,%rax
je     1230 <main+0xe0>
lea    0xe30(%rip),%rdi
call   1070 <perror@plt>
movl   $0x2,-0x4(%rbp)
jmp    12be <main+0x16e>
mov    -0x38(%rbp),%eax
sub    -0x58(%rbp),%eax
mov    %eax,-0x5c(%rbp)
cmpl   $0x0,-0x5c(%rbp)
jge    1271 <main+0x121>
lea    0xe2d(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
mov    -0x58(%rbp),%esi
mov    -0x38(%rbp),%edx
lea    0xe49(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
movl   $0x1,-0x4(%rbp)
jmp    12be <main+0x16e>
cmpl   $0x1,-0x5c(%rbp)
jg     1295 <main+0x145>
lea    0xe2e(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
movl   $0x0,-0x4(%rbp)
jmp    12be <main+0x16e>
lea    0xe21(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
mov    -0x58(%rbp),%esi
mov    -0x38(%rbp),%edx
lea    0xe3f(%rip),%rdi
mov    $0x0,%al
call   1050 <printf@plt>
movl   $0x1,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x60,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x58,%rsp
mov    0x2e75(%rip),%rax
mov    (%rax),%eax
mov    %eax,0x14(%rsp)
mov    0x2e70(%rip),%rax
mov    (%rax),%eax
mov    %eax,0x10(%rsp)
xorps  %xmm0,%xmm0
movups %xmm0,0x28(%rsp)
movl   $0x5,0x18(%rsp)
movq   $0x0,0x20(%rsp)
mov    0x2e32(%rip),%rax
mov    (%rax),%edi
lea    0x10(%rsp),%rsi
lea    0xc(%rsp),%rdx
call   1050 <timer_create@plt>
test   %rax,%rax
jne    1251 <main+0xf1>
mov    0xc(%rsp),%edi
lea    0x18(%rsp),%rdx
xor    %esi,%esi
xor    %ecx,%ecx
call   1030 <timer_settime@plt>
test   %rax,%rax
jne    125a <main+0xfa>
mov    0xc(%rsp),%edi
lea    0x38(%rsp),%rsi
call   1070 <timer_gettime@plt>
test   %rax,%rax
jne    1263 <main+0x103>
mov    0x18(%rsp),%eax
sub    0x38(%rsp),%eax
js     1208 <main+0xa8>
cmp    $0x1,%eax
ja     1225 <main+0xc5>
lea    0xec0(%rip),%rdi
call   1040 <puts@plt>
xor    %eax,%eax
add    $0x58,%rsp
ret
lea    0xeb9(%rip),%rdi
call   1040 <puts@plt>
mov    0x38(%rsp),%esi
mov    0x18(%rsp),%edx
lea    0xe54(%rip),%rdi
jmp    1240 <main+0xe0>
lea    0xe5f(%rip),%rdi
call   1040 <puts@plt>
mov    0x38(%rsp),%esi
mov    0x18(%rsp),%edx
lea    0xe40(%rip),%rdi
xor    %eax,%eax
call   1060 <printf@plt>
mov    $0x1,%eax
add    $0x58,%rsp
ret
lea    0xda8(%rip),%rdi
jmp    126a <main+0x10a>
lea    0xdc6(%rip),%rdi
jmp    126a <main+0x10a>
lea    0xde5(%rip),%rdi
call   1080 <perror@plt>
mov    $0x2,%eax
add    $0x58,%rsp
ret

LLVM IR (-O0):
%struct.sigevent = type { i32, i32 }
%struct.itimerspec = type { %struct.TYPE_4__, %struct.TYPE_3__ }
%struct.TYPE_4__ = type { i32, i64 }
%struct.TYPE_3__ = type { i64, i64 }
@SIGEV_SIGNAL = global i32 0
@SIGCONT = global i32 0
@CLOCK_REALTIME = global i32 0
@.str = [39 x i8] c"timer_create() did not return success\0A\00"
@.str.1 = [40 x i8] c"timer_settime() did not return success\0A\00"
@.str.2 = [40 x i8] c"timer_gettime() did not return success\0A\00"
@.str.3 = [48 x i8] c"FAIL: timer_gettime() value > timer_settime()\0A\00"
@.str.4 = [9 x i8] c"%d > %d\0A\00"
@.str.5 = [13 x i8] c"Test PASSED\0A\00"
@.str.6 = [50 x i8] c"FAIL: timer_gettime() value !~= timer_settime()\0A\00"
@.str.7 = [11 x i8] c"%d !~= %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca %struct.sigevent
%3 = alloca i32
%4 = alloca %struct.itimerspec
%5 = alloca %struct.itimerspec
%6 = alloca i32
store i32 0, i32* %1
%7 = load i32, i32* @SIGEV_SIGNAL
%8 = getelementptr inbounds %struct.sigevent, %struct.sigevent* %2, i32 0, i32 1
store i32 %7, i32* %8
%9 = load i32, i32* @SIGCONT
%10 = getelementptr inbounds %struct.sigevent, %struct.sigevent* %2, i32 0, i32 0
store i32 %9, i32* %10
%11 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 1
%12 = getelementptr inbounds %struct.TYPE_3__, %struct.TYPE_3__* %11, i32 0, i32 1
store i64 0, i64* %12
%13 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 1
%14 = getelementptr inbounds %struct.TYPE_3__, %struct.TYPE_3__* %13, i32 0, i32 0
store i64 0, i64* %14
%15 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 0
%16 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %15, i32 0, i32 0
store i32 5, i32* %16
%17 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 0
%18 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %17, i32 0, i32 1
store i64 0, i64* %18
%19 = load i32, i32* @CLOCK_REALTIME
%20 = call i64 @timer_create(i32 %19, %struct.sigevent* %2, i32* %3)
%21 = icmp ne i64 %20, 0
br i1 %21, label %22, label %24
22: ; preds = %0
%23 = call i32 @perror(i8* getelementptr inbounds ([39 x i8], [39 x i8]* @.str, i64 0, i64 0))
store i32 2, i32* %1
br label %69
24: ; preds = %0
%25 = load i32, i32* %3
%26 = call i64 @timer_settime(i32 %25, i32 0, %struct.itimerspec* %4, i32* null)
%27 = icmp ne i64 %26, 0
br i1 %27, label %28, label %30
28: ; preds = %24
%29 = call i32 @perror(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.1, i64 0, i64 0))
store i32 2, i32* %1
br label %69
30: ; preds = %24
%31 = load i32, i32* %3
%32 = call i64 @timer_gettime(i32 %31, %struct.itimerspec* %5)
%33 = icmp ne i64 %32, 0
br i1 %33, label %34, label %36
34: ; preds = %30
%35 = call i32 @perror(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0))
store i32 2, i32* %1
br label %69
36: ; preds = %30
%37 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 0
%38 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %37, i32 0, i32 0
%39 = load i32, i32* %38
%40 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %5, i32 0, i32 0
%41 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %40, i32 0, i32 0
%42 = load i32, i32* %41
%43 = sub nsw i32 %39, %42
store i32 %43, i32* %6
%44 = load i32, i32* %6
%45 = icmp slt i32 %44, 0
br i1 %45, label %46, label %55
46: ; preds = %36
%47 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.3, i64 0, i64 0))
%48 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %5, i32 0, i32 0
%49 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %48, i32 0, i32 0
%50 = load i32, i32* %49
%51 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 0
%52 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %51, i32 0, i32 0
%53 = load i32, i32* %52
%54 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32 %50, i32 %53)
store i32 1, i32* %1
br label %69
55: ; preds = %36
%56 = load i32, i32* %6
%57 = icmp sle i32 %56, 1
br i1 %57, label %58, label %60
58: ; preds = %55
%59 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.5, i64 0, i64 0))
store i32 0, i32* %1
br label %69
60: ; preds = %55
%61 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.6, i64 0, i64 0))
%62 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %5, i32 0, i32 0
%63 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %62, i32 0, i32 0
%64 = load i32, i32* %63
%65 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i32 0, i32 0
%66 = getelementptr inbounds %struct.TYPE_4__, %struct.TYPE_4__* %65, i32 0, i32 0
%67 = load i32, i32* %66
%68 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.7, i64 0, i64 0), i32 %64, i32 %67)
store i32 1, i32* %1
br label %69
69: ; preds = %60, %58, %46, %34, %28, %22
%70 = load i32, i32* %1
ret i32 %70
}

LLVM IR (-O2):
%struct.sigevent = type { i32, i32 }
%struct.itimerspec = type { %struct.TYPE_4__, %struct.TYPE_3__ }
%struct.TYPE_4__ = type { i32, i64 }
%struct.TYPE_3__ = type { i64, i64 }
@SIGEV_SIGNAL = global i32 0
@SIGCONT = global i32 0
@CLOCK_REALTIME = global i32 0
@.str = [39 x i8] c"timer_create() did not return success\0A\00"
@.str.1 = [40 x i8] c"timer_settime() did not return success\0A\00"
@.str.2 = [40 x i8] c"timer_gettime() did not return success\0A\00"
@.str.4 = [9 x i8] c"%d > %d\0A\00"
@.str.7 = [11 x i8] c"%d !~= %d\0A\00"
@str = [49 x i8] c"FAIL: timer_gettime() value !~= timer_settime()\00"
@str.8 = [12 x i8] c"Test PASSED\00"
@str.9 = [47 x i8] c"FAIL: timer_gettime() value > timer_settime()\00"
define i32 @main() {
%1 = alloca %struct.sigevent
%2 = alloca i32
%3 = alloca %struct.itimerspec
%4 = alloca %struct.itimerspec
%5 = bitcast %struct.sigevent* %1 to i8*
%6 = bitcast i32* %2 to i8*
%7 = bitcast %struct.itimerspec* %3 to i8*
%8 = bitcast %struct.itimerspec* %4 to i8*
%9 = load i32, i32* @SIGEV_SIGNAL
%10 = getelementptr inbounds %struct.sigevent, %struct.sigevent* %1, i64 0, i32 1
store i32 %9, i32* %10
%11 = load i32, i32* @SIGCONT
%12 = getelementptr inbounds %struct.sigevent, %struct.sigevent* %1, i64 0, i32 0
store i32 %11, i32* %12
%13 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %3, i64 0, i32 1, i32 0
%14 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %3, i64 0, i32 0, i32 0
%15 = bitcast i64* %13 to i8*
store i32 5, i32* %14
%16 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %3, i64 0, i32 0, i32 1
store i64 0, i64* %16
%17 = load i32, i32* @CLOCK_REALTIME
%18 = call i64 @timer_create(i32 %17, %struct.sigevent* %1, i32* %2)
%19 = icmp eq i64 %18, 0
br i1 %19, label %22, label %20
20: ; preds = %0
%21 = call i32 @perror(i8* getelementptr inbounds ([39 x i8], [39 x i8]* @.str, i64 0, i64 0))
br label %54
22: ; preds = %0
%23 = load i32, i32* %2
%24 = call i64 @timer_settime(i32 %23, i32 0, %struct.itimerspec* %3, i32* null)
%25 = icmp eq i64 %24, 0
br i1 %25, label %28, label %26
26: ; preds = %22
%27 = call i32 @perror(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.1, i64 0, i64 0))
br label %54
28: ; preds = %22
%29 = load i32, i32* %2
%30 = call i64 @timer_gettime(i32 %29, %struct.itimerspec* %4)
%31 = icmp eq i64 %30, 0
br i1 %31, label %34, label %32
32: ; preds = %28
%33 = call i32 @perror(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0))
br label %54
34: ; preds = %28
%35 = load i32, i32* %14
%36 = getelementptr inbounds %struct.itimerspec, %struct.itimerspec* %4, i64 0, i32 0, i32 0
%37 = load i32, i32* %36
%38 = sub nsw i32 %35, %37
%39 = icmp slt i32 %38, 0
br i1 %39, label %40, label %45
40: ; preds = %34
%41 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.9, i64 0, i64 0))
%42 = load i32, i32* %36
%43 = load i32, i32* %14
%44 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0), i32 %42, i32 %43)
br label %54
45: ; preds = %34
%46 = icmp ult i32 %38, 2
br i1 %46, label %47, label %49
47: ; preds = %45
%48 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @str.8, i64 0, i64 0))
br label %54
49: ; preds = %45
%50 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str, i64 0, i64 0))
%51 = load i32, i32* %36
%52 = load i32, i32* %14
%53 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.7, i64 0, i64 0), i32 %51, i32 %52)
br label %54
54: ; preds = %49, %47, %40, %32, %26, %20
%55 = phi i32 [ 2, %20 ], [ 2, %26 ], [ 2, %32 ], [ 1, %40 ], [ 0, %47 ], [ 1, %49 ]
ret i32 %55
}