#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 */
typedef int /*<<< orphan*/ FILE;

/* Variables and functions */
int /*<<< orphan*/ EXIT_FAILURE;
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, ...);
size_t fwrite(void const *, size_t, size_t, int /*<<< orphan*/ *);
int /*<<< orphan*/ stderr;
extern size_t xfwrite(const void *ptr, size_t size, size_t nmemb,
                      FILE *stream) {
  if (fwrite(ptr, size, nmemb, stream) != nmemb) {
    fprintf(stderr, "Expected to write %li (%lib each) but wrote less.\n",
            (long)nmemb, (long)size);
    fprintf(stderr, "Exiting... :-(\n");
    exit(EXIT_FAILURE);
  }
  return nmemb;
}


x86 assembly (clang, -O0):
<xfwrite>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
mov    %rcx,-0x20(%rbp)
mov    -0x8(%rbp),%rdi
mov    -0x10(%rbp),%rsi
mov    -0x18(%rbp),%rdx
mov    -0x20(%rbp),%rcx
call   1050 <fwrite@plt>
cmp    -0x18(%rbp),%rax
je     11ab <xfwrite+0x7b>
mov    0x2e72(%rip),%rax
mov    (%rax),%edi
mov    -0x18(%rbp),%rdx
mov    -0x10(%rbp),%rcx
lea    0xe81(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e53(%rip),%rax
mov    (%rax),%edi
lea    0xe9d(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e34(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>
mov    -0x18(%rbp),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<xfwrite>:
push   %r15
push   %r14
push   %rbx
mov    %rdx,%rbx
mov    %rsi,%r14
call   1050 <fwrite@plt>
cmp    %rbx,%rax
jne    114e <xfwrite+0x1e>
mov    %rbx,%rax
pop    %rbx
pop    %r14
pop    %r15
ret
mov    0x2e8b(%rip),%r15
mov    (%r15),%edi
lea    0xea1(%rip),%rsi
mov    %rbx,%rdx
mov    %r14,%rcx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xebd(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    0x2e54(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [51 x i8] c"Expected to write %li (%lib each) but wrote less.\0A\00"
@.str.1 = [16 x i8] c"Exiting... :-(\0A\00"
@EXIT_FAILURE = global i32 0
define i64 @xfwrite(i8* %0, i64 %1, i64 %2, i32* %3) {
%5 = alloca i8*
%6 = alloca i64
%7 = alloca i64
%8 = alloca i32*
store i8* %0, i8** %5
store i64 %1, i64* %6
store i64 %2, i64* %7
store i32* %3, i32** %8
%9 = load i8*, i8** %5
%10 = load i64, i64* %6
%11 = load i64, i64* %7
%12 = load i32*, i32** %8
%13 = call i64 @fwrite(i8* %9, i64 %10, i64 %11, i32* %12)
%14 = load i64, i64* %7
%15 = icmp ne i64 %13, %14
br i1 %15, label %16, label %25
16: ; preds = %4
%17 = load i32, i32* @stderr
%18 = load i64, i64* %7
%19 = load i64, i64* %6
%20 = call i32 (i32, i8*, ...) @fprintf(i32 %17, i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0), i64 %18, i64 %19)
%21 = load i32, i32* @stderr
%22 = call i32 (i32, i8*, ...) @fprintf(i32 %21, i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0))
%23 = load i32, i32* @EXIT_FAILURE
%24 = call i32 @exit(i32 %23)
unreachable
25: ; preds = %4
%26 = load i64, i64* %7
ret i64 %26
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [51 x i8] c"Expected to write %li (%lib each) but wrote less.\0A\00"
@.str.1 = [16 x i8] c"Exiting... :-(\0A\00"
@EXIT_FAILURE = global i32 0
define i64 @xfwrite(i8* nocapture %0, i64 %1, i64 returned %2, i32* nocapture %3) {
%5 = tail call i64 @fwrite(i8* %0, i64 %1, i64 %2, i32* %3)
%6 = icmp eq i64 %5, %2
br i1 %6, label %14, label %7
7: ; preds = %4
%8 = load i32, i32* @stderr
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0), i64 %2, i64 %1)
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.1, i64 0, i64 0))
%12 = load i32, i32* @EXIT_FAILURE
%13 = tail call i32 @exit(i32 %12)
unreachable
14: ; preds = %4
ret i64 %2
}