#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*/ SEEK_SET;
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char *, char *);
int fread(char *, int, int, int /*<<< orphan*/ *);
int /*<<< orphan*/ free(char *);
int /*<<< orphan*/ fseek(int /*<<< orphan*/ *, int /*<<< orphan*/,
                         int /*<<< orphan*/);
int ftell(int /*<<< orphan*/ *);
scalar_t__ malloc(int);
int /*<<< orphan*/ run_buffer(char *);
void run_file(char *filename) {
  char *src;
  FILE *f = fopen(filename, "rb");
  fseek(f, 0, SEEK_END);
  int filesize = ftell(f);
  fseek(f, 0, SEEK_SET);
  src = (char *)malloc(filesize + 1);
  if (fread(src, 1, filesize, f) != filesize) {
    return;
  }
  fclose(f);
  src[filesize] = '\0';
  run_buffer(src);
  free(src);
}


x86 assembly (clang, -O0):
<run_file>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
lea    0xe69(%rip),%rsi
call   10a0 <fopen@plt>
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rdi
mov    0x2e3d(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1090 <fseek@plt>
mov    -0x18(%rbp),%rdi
call   1070 <ftell@plt>
mov    %eax,-0x1c(%rbp)
mov    -0x18(%rbp),%rdi
mov    0x2e0d(%rip),%rax
mov    (%rax),%edx
xor    %esi,%esi
call   1090 <fseek@plt>
mov    -0x1c(%rbp),%edi
add    $0x1,%edi
call   1080 <malloc@plt>
mov    %rax,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
mov    -0x1c(%rbp),%edx
mov    -0x18(%rbp),%rcx
mov    $0x1,%esi
call   1050 <fread@plt>
cmp    -0x1c(%rbp),%eax
je     1206 <run_file+0x86>
jmp    122d <run_file+0xad>
mov    -0x18(%rbp),%rdi
call   1060 <fclose@plt>
mov    -0x10(%rbp),%rax
movslq -0x1c(%rbp),%rcx
movb   $0x0,(%rax,%rcx,1)
mov    -0x10(%rbp),%rdi
call   1040 <run_buffer@plt>
mov    -0x10(%rbp),%rdi
call   1030 <free@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<run_file>:
push   %r15
push   %r14
push   %rbx
lea    0xe74(%rip),%rsi
call   10a0 <fopen@plt>
mov    %rax,%rbx
mov    0x2e4d(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1090 <fseek@plt>
mov    %rbx,%rdi
call   1070 <ftell@plt>
mov    %eax,%r14d
mov    0x2e1f(%rip),%rax
mov    (%rax),%edx
mov    %rbx,%rdi
xor    %esi,%esi
call   1090 <fseek@plt>
lea    0x1(%r14),%edi
call   1080 <malloc@plt>
mov    %rax,%r15
mov    %rax,%rdi
mov    $0x1,%esi
mov    %r14d,%edx
mov    %rbx,%rcx
call   1050 <fread@plt>
cmp    %r14d,%eax
jne    120e <run_file+0x8e>
mov    %rbx,%rdi
call   1060 <fclose@plt>
movslq %r14d,%rax
movb   $0x0,(%r15,%rax,1)
mov    %r15,%rdi
call   1040 <run_buffer@plt>
mov    %r15,%rdi
pop    %rbx
pop    %r14
pop    %r15
jmp    1030 <free@plt>
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define void @run_file(i8* %0) {
%2 = alloca i8*
%3 = alloca i8*
%4 = alloca i32*
%5 = alloca i32
store i8* %0, i8** %2
%6 = load i8*, i8** %2
%7 = call i32* @fopen(i8* %6, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0))
store i32* %7, i32** %4
%8 = load i32*, i32** %4
%9 = load i32, i32* @SEEK_END
%10 = call i32 @fseek(i32* %8, i32 0, i32 %9)
%11 = load i32*, i32** %4
%12 = call i32 @ftell(i32* %11)
store i32 %12, i32* %5
%13 = load i32*, i32** %4
%14 = load i32, i32* @SEEK_SET
%15 = call i32 @fseek(i32* %13, i32 0, i32 %14)
%16 = load i32, i32* %5
%17 = add nsw i32 %16, 1
%18 = call i64 @malloc(i32 %17)
%19 = inttoptr i64 %18 to i8*
store i8* %19, i8** %3
%20 = load i8*, i8** %3
%21 = load i32, i32* %5
%22 = load i32*, i32** %4
%23 = call i32 @fread(i8* %20, i32 1, i32 %21, i32* %22)
%24 = load i32, i32* %5
%25 = icmp ne i32 %23, %24
br i1 %25, label %26, label %27
26: ; preds = %1
br label %38
27: ; preds = %1
%28 = load i32*, i32** %4
%29 = call i32 @fclose(i32* %28)
%30 = load i8*, i8** %3
%31 = load i32, i32* %5
%32 = sext i32 %31 to i64
%33 = getelementptr inbounds i8, i8* %30, i64 %32
store i8 0, i8* %33
%34 = load i8*, i8** %3
%35 = call i32 @run_buffer(i8* %34)
%36 = load i8*, i8** %3
%37 = call i32 @free(i8* %36)
br label %38
38: ; preds = %27, %26
ret void
}

LLVM IR (-O2):
@.str = [3 x i8] c"rb\00"
@SEEK_END = global i32 0
@SEEK_SET = global i32 0
define void @run_file(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 = load i32, i32* @SEEK_END
%4 = tail call i32 @fseek(i32* %2, i32 0, i32 %3)
%5 = tail call i32 @ftell(i32* %2)
%6 = load i32, i32* @SEEK_SET
%7 = tail call i32 @fseek(i32* %2, i32 0, i32 %6)
%8 = add nsw i32 %5, 1
%9 = tail call i64 @malloc(i32 %8)
%10 = inttoptr i64 %9 to i8*
%11 = tail call i32 @fread(i8* %10, i32 1, i32 %5, i32* %2)
%12 = icmp eq i32 %11, %5
br i1 %12, label %13, label %19
13: ; preds = %1
%14 = tail call i32 @fclose(i32* %2)
%15 = sext i32 %5 to i64
%16 = getelementptr inbounds i8, i8* %10, i64 %15
store i8 0, i8* %16
%17 = tail call i32 @run_buffer(i8* %10)
%18 = tail call i32 @free(i8* %10)
br label %19
19: ; preds = %1, %13
ret void
}