#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*/ F_GETFL;
int /*<<< orphan*/ F_SETFL;
scalar_t__ fcntl(int, int /*<<< orphan*/, int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ stderr;
void clr_fl(int fd, int flags) {
  int val = 0;
  if ((val = fcntl(fd, F_GETFL, 0)) < 0) {
    fprintf(stderr, "fcntl F_GETFL error\n");
  }
  val &= ~flags;
  if (fcntl(fd, F_SETFL, val) < 0) {
    fprintf(stderr, "fcntl F_SETFL error\n");
  }
}


x86 assembly (clang, -O0):
<clr_fl>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
mov    -0x4(%rbp),%edi
mov    0x2e91(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   1030 <fcntl@plt>
mov    %eax,-0xc(%rbp)
cmp    $0x0,%eax
jge    1169 <clr_fl+0x49>
mov    0x2e85(%rip),%rax
mov    (%rax),%edi
lea    0xe9c(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x8(%rbp),%eax
xor    $0xffffffff,%eax
and    -0xc(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0x4(%rbp),%edi
mov    0x2e59(%rip),%rax
mov    (%rax),%esi
mov    -0xc(%rbp),%edx
call   1030 <fcntl@plt>
cmp    $0x0,%rax
jge    11a8 <clr_fl+0x88>
mov    0x2e46(%rip),%rax
mov    (%rax),%edi
lea    0xe72(%rip),%rsi
call   1040 <fprintf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<clr_fl>:
push   %rbp
push   %r14
push   %rbx
mov    %esi,%ebp
mov    %edi,%r14d
mov    0x2ea0(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   1030 <fcntl@plt>
mov    %rax,%rbx
test   %ebx,%ebx
jns    1155 <clr_fl+0x35>
mov    0x2e99(%rip),%rax
mov    (%rax),%edi
lea    0xeb0(%rip),%rsi
call   1040 <fprintf@plt>
not    %ebp
and    %ebp,%ebx
mov    0x2e78(%rip),%rax
mov    (%rax),%esi
mov    %r14d,%edi
mov    %ebx,%edx
call   1030 <fcntl@plt>
test   %rax,%rax
js     1176 <clr_fl+0x56>
pop    %rbx
pop    %r14
pop    %rbp
ret
mov    0x2e63(%rip),%rax
mov    (%rax),%edi
lea    0xe8f(%rip),%rsi
pop    %rbx
pop    %r14
pop    %rbp
jmp    1040 <fprintf@plt>

LLVM IR (-O0):
@F_GETFL = global i32 0
@stderr = global i32 0
@.str = [21 x i8] c"fcntl F_GETFL error\0A\00"
@F_SETFL = global i32 0
@.str.1 = [21 x i8] c"fcntl F_SETFL error\0A\00"
define void @clr_fl(i32 %0, i32 %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 %0, i32* %3
store i32 %1, i32* %4
store i32 0, i32* %5
%6 = load i32, i32* %3
%7 = load i32, i32* @F_GETFL
%8 = call i64 @fcntl(i32 %6, i32 %7, i32 0)
%9 = trunc i64 %8 to i32
store i32 %9, i32* %5
%10 = icmp slt i32 %9, 0
br i1 %10, label %11, label %14
11: ; preds = %2
%12 = load i32, i32* @stderr
%13 = call i32 @fprintf(i32 %12, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
br label %14
14: ; preds = %11, %2
%15 = load i32, i32* %4
%16 = xor i32 %15, -1
%17 = load i32, i32* %5
%18 = and i32 %17, %16
store i32 %18, i32* %5
%19 = load i32, i32* %3
%20 = load i32, i32* @F_SETFL
%21 = load i32, i32* %5
%22 = call i64 @fcntl(i32 %19, i32 %20, i32 %21)
%23 = icmp slt i64 %22, 0
br i1 %23, label %24, label %27
24: ; preds = %14
%25 = load i32, i32* @stderr
%26 = call i32 @fprintf(i32 %25, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i64 0, i64 0))
br label %27
27: ; preds = %24, %14
ret void
}

LLVM IR (-O2):
@F_GETFL = global i32 0
@stderr = global i32 0
@.str = [21 x i8] c"fcntl F_GETFL error\0A\00"
@F_SETFL = global i32 0
@.str.1 = [21 x i8] c"fcntl F_SETFL error\0A\00"
define void @clr_fl(i32 %0, i32 %1) {
%3 = load i32, i32* @F_GETFL
%4 = tail call i64 @fcntl(i32 %0, i32 %3, i32 0)
%5 = trunc i64 %4 to i32
%6 = icmp slt i32 %5, 0
br i1 %6, label %7, label %10
7: ; preds = %2
%8 = load i32, i32* @stderr
%9 = tail call i32 @fprintf(i32 %8, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
br label %10
10: ; preds = %7, %2
%11 = xor i32 %1, -1
%12 = and i32 %5, %11
%13 = load i32, i32* @F_SETFL
%14 = tail call i64 @fcntl(i32 %0, i32 %13, i32 %12)
%15 = icmp slt i64 %14, 0
br i1 %15, label %16, label %19
16: ; preds = %10
%17 = load i32, i32* @stderr
%18 = tail call i32 @fprintf(i32 %17, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.1, i64 0, i64 0))
br label %19
19: ; preds = %16, %10
ret void
}