#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*/ SEEK_END;
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
scalar_t__ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/, int /*<<< orphan*/);
int ftell(int /*<<< orphan*/ *);
int fsize(char *filename) {
  int size;
  FILE *fh;
  fh = fopen(filename, "rb");
  if (fh != NULL) {
    if (fseek(fh, 0, SEEK_END)) {
      fclose(fh);
      return -1;
    }
    size = ftell(fh);
    fclose(fh);
    return size;
  }
  return -1;
}


x86 assembly (clang, -O0):
<fsize>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xea9(%rip),%rsi
call   1060 <fopen@plt>
mov    %rax,-0x20(%rbp)
cmpq   $0x0,-0x20(%rbp)
je     11be <fsize+0x7e>
mov    -0x20(%rbp),%rdi
mov    0x2e72(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1050 <fseek@plt>
cmp    $0x0,%rax
je     119e <fsize+0x5e>
mov    -0x20(%rbp),%rdi
call   1030 <fclose@plt>
movl   $0xffffffff,-0x4(%rbp)
jmp    11c5 <fsize+0x85>
mov    -0x20(%rbp),%rdi
call   1040 <ftell@plt>
mov    %eax,-0x14(%rbp)
mov    -0x20(%rbp),%rdi
call   1030 <fclose@plt>
mov    -0x14(%rbp),%eax
mov    %eax,-0x4(%rbp)
jmp    11c5 <fsize+0x85>
movl   $0xffffffff,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<fsize>:
push   %rbp
push   %rbx
push   %rax
lea    0xeb6(%rip),%rsi
call   1060 <fopen@plt>
test   %rax,%rax
je     1188 <fsize+0x48>
mov    %rax,%rbx
mov    0x2e8a(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1050 <fseek@plt>
mov    $0xffffffff,%ebp
test   %rax,%rax
jne    117e <fsize+0x3e>
mov    %rbx,%rdi
call   1040 <ftell@plt>
mov    %eax,%ebp
mov    %rbx,%rdi
call   1030 <fclose@plt>
jmp    118d <fsize+0x4d>
mov    $0xffffffff,%ebp
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
define i32 @fsize(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i32
%5 = alloca i32*
store i8* %0, i8** %3
%6 = load i8*, i8** %3
%7 = call i32* @fopen(i8* %6, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
store i32* %7, i32** %5
%8 = load i32*, i32** %5
%9 = icmp ne i32* %8, null
br i1 %9, label %10, label %24
10: ; preds = %1
%11 = load i32*, i32** %5
%12 = load i32, i32* @SEEK_END
%13 = call i64 @fseek(i32* %11, i32 0, i32 %12)
%14 = icmp ne i64 %13, 0
br i1 %14, label %15, label %18
15: ; preds = %10
%16 = load i32*, i32** %5
%17 = call i32 @fclose(i32* %16)
store i32 -1, i32* %2
br label %25
18: ; preds = %10
%19 = load i32*, i32** %5
%20 = call i32 @ftell(i32* %19)
store i32 %20, i32* %4
%21 = load i32*, i32** %5
%22 = call i32 @fclose(i32* %21)
%23 = load i32, i32* %4
store i32 %23, i32* %2
br label %25
24: ; preds = %1
store i32 -1, i32* %2
br label %25
25: ; preds = %24, %18, %15
%26 = load i32, i32* %2
ret i32 %26
}

LLVM IR (-O2):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
define i32 @fsize(i8* nocapture %0) {
%2 = tail call i32* @fopen(i8* %0, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i32* %2, null
br i1 %3, label %13, label %4
4: ; preds = %1
%5 = load i32, i32* @SEEK_END
%6 = tail call i64 @fseek(i32* %2, i32 0, i32 %5)
%7 = icmp eq i64 %6, 0
br i1 %7, label %8, label %10
8: ; preds = %4
%9 = tail call i32 @ftell(i32* %2)
br label %10
10: ; preds = %4, %8
%11 = phi i32 [ %9, %8 ], [ -1, %4 ]
%12 = tail call i32 @fclose(i32* %2)
br label %13
13: ; preds = %10, %1
%14 = phi i32 [ -1, %1 ], [ %11, %10 ]
ret i32 %14
}