#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(int);
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char const *, char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char const *);
int /*<<< orphan*/ fscanf(int /*<<< orphan*/ *, char *, int *);
int /*<<< orphan*/ stderr;
int countfile_get_count(const char *name) {
  FILE *in;
  int count;
  in = fopen(name, "r");
  if (!in) {
    fprintf(stderr, "Cannot open count file '%s'\n", name);
    exit(1);
  }
  fscanf(in, "%d", &count);
  fclose(in);
  return count;
}


x86 assembly (clang, -O0):
<countfile_get_count>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
lea    0xe99(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    119e <countfile_get_count+0x4e>
mov    0x2e5e(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xe73(%rip),%rsi
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>
mov    -0x10(%rbp),%rdi
lea    0xe76(%rip),%rsi
lea    -0x14(%rbp),%rdx
call   1040 <fscanf@plt>
mov    -0x10(%rbp),%rdi
call   1030 <fclose@plt>
mov    -0x14(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<countfile_get_count>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%r14
lea    0xea2(%rip),%rsi
call   1060 <fopen@plt>
test   %rax,%rax
je     1193 <countfile_get_count+0x43>
mov    %rax,%rbx
lea    0xead(%rip),%rsi
lea    0x4(%rsp),%rdx
mov    %rax,%rdi
call   1040 <fscanf@plt>
mov    %rbx,%rdi
call   1030 <fclose@plt>
mov    0x4(%rsp),%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret
mov    0x2e46(%rip),%rax
mov    (%rax),%edi
lea    0xe5f(%rip),%rsi
mov    %r14,%rdx
call   1050 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"r\00"
@stderr = global i32 0
@.str.1 = [29 x i8] c"Cannot open count file '%s'\0A\00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @countfile_get_count(i8* %0) {
%2 = alloca i8*
%3 = alloca i32*
%4 = alloca i32
store i8* %0, i8** %2
%5 = load i8*, i8** %2
%6 = call i32* @fopen(i8* %5, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32* %6, i32** %3
%7 = load i32*, i32** %3
%8 = icmp ne i32* %7, null
br i1 %8, label %14, label %9
9: ; preds = %1
%10 = load i32, i32* @stderr
%11 = load i8*, i8** %2
%12 = call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.1, i64 0, i64 0), i8* %11)
%13 = call i32 @exit(i32 1)
unreachable
14: ; preds = %1
%15 = load i32*, i32** %3
%16 = call i32 @fscanf(i32* %15, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %4)
%17 = load i32*, i32** %3
%18 = call i32 @fclose(i32* %17)
%19 = load i32, i32* %4
ret i32 %19
}

LLVM IR (-O2):
@.str = [2 x i8] c"r\00"
@stderr = global i32 0
@.str.1 = [29 x i8] c"Cannot open count file '%s'\0A\00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @countfile_get_count(i8* %0) {
%2 = alloca i32
%3 = bitcast i32* %2 to i8*
%4 = tail call i32* @fopen(i8* %0, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%5 = icmp eq i32* %4, null
br i1 %5, label %6, label %10
6: ; preds = %1
%7 = load i32, i32* @stderr
%8 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%9 = tail call i32 @exit(i32 1)
unreachable
10: ; preds = %1
%11 = call i32 @fscanf(i32* %4, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%12 = call i32 @fclose(i32* %4)
%13 = load i32, i32* %2
ret i32 %13
}