#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 fileSize(char *);
scalar_t__ strcmp(char *, char *);
int fileExists(char *fileName) {
  if ((strcmp(fileName, "stdin") == 0))
    return 1;
  if ((strcmp(fileName, "stdout") == 0))
    return 1;
  return fileSize(fileName) != -1;
}


x86 assembly (clang, -O0):
<fileExists>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xec9(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    1152 <fileExists+0x32>
movl   $0x1,-0x4(%rbp)
jmp    118f <fileExists+0x6f>
mov    -0x10(%rbp),%rdi
lea    0xea9(%rip),%rsi
call   1040 <strcmp@plt>
cmp    $0x0,%rax
jne    1178 <fileExists+0x58>
movl   $0x1,-0x4(%rbp)
jmp    118f <fileExists+0x6f>
mov    -0x10(%rbp),%rdi
call   1030 <fileSize@plt>
cmp    $0xffffffff,%eax
setne  %al
and    $0x1,%al
movzbl %al,%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<fileExists>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%r14
lea    0xed2(%rip),%rsi
call   1040 <strcmp@plt>
mov    $0x1,%ebx
test   %rax,%rax
je     1161 <fileExists+0x41>
lea    0xec2(%rip),%rsi
mov    %r14,%rdi
call   1040 <strcmp@plt>
test   %rax,%rax
je     1161 <fileExists+0x41>
mov    %r14,%rdi
call   1030 <fileSize@plt>
xor    %ebx,%ebx
cmp    $0xffffffff,%eax
setne  %bl
mov    %ebx,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [6 x i8] c"stdin\00"
@.str.1 = [7 x i8] c"stdout\00"
define i32 @fileExists(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i64 @strcmp(i8* %4, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %8
7: ; preds = %1
store i32 1, i32* %2
br label %18
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i64 @strcmp(i8* %9, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
%11 = icmp eq i64 %10, 0
br i1 %11, label %12, label %13
12: ; preds = %8
store i32 1, i32* %2
br label %18
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i32 @fileSize(i8* %14)
%16 = icmp ne i32 %15, -1
%17 = zext i1 %16 to i32
store i32 %17, i32* %2
br label %18
18: ; preds = %13, %12, %7
%19 = load i32, i32* %2
ret i32 %19
}

LLVM IR (-O2):
@.str = [6 x i8] c"stdin\00"
@.str.1 = [7 x i8] c"stdout\00"
define i32 @fileExists(i8* %0) {
%2 = tail call i64 @strcmp(i8* %0, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i64 %2, 0
br i1 %3, label %11, label %4
4: ; preds = %1
%5 = tail call i64 @strcmp(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %11, label %7
7: ; preds = %4
%8 = tail call i32 @fileSize(i8* %0)
%9 = icmp ne i32 %8, -1
%10 = zext i1 %9 to i32
br label %11
11: ; preds = %4, %1, %7
%12 = phi i32 [ %10, %7 ], [ 1, %1 ], [ 1, %4 ]
ret i32 %12
}