#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 /*<<< orphan*/ fputs(char *, int /*<<< orphan*/);
int /*<<< orphan*/ print_word_frequencies(char *);
int /*<<< orphan*/ stderr;
int main(int argc, char **argv) {
  if (argc != 2) {
    fputs("error: you must supply a filename as an argument\n", stderr);
    return 1;
  }
  if (!print_word_frequencies(argv[1]))
    return 1;
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     1161 <main+0x41>
mov    0x2e99(%rip),%rax
mov    (%rax),%esi
lea    0xeb0(%rip),%rdi
call   1030 <fputs@plt>
movl   $0x1,-0x4(%rbp)
jmp    118a <main+0x6a>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1040 <print_word_frequencies@plt>
cmp    $0x0,%eax
jne    1183 <main+0x63>
movl   $0x1,-0x4(%rbp)
jmp    118a <main+0x6a>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
cmp    $0x2,%edi
jne    113a <main+0x1a>
mov    0x8(%rsi),%rdi
call   1040 <print_word_frequencies@plt>
mov    %eax,%ecx
xor    %eax,%eax
test   %ecx,%ecx
sete   %al
pop    %rcx
ret
mov    0x2e9f(%rip),%rax
mov    (%rax),%esi
lea    0xeb6(%rip),%rdi
call   1030 <fputs@plt>
mov    $0x1,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [50 x i8] c"error: you must supply a filename as an argument\0A\00"
@stderr = global i32 0
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = load i32, i32* %4
%7 = icmp ne i32 %6, 2
br i1 %7, label %8, label %11
8: ; preds = %2
%9 = load i32, i32* @stderr
%10 = call i32 @fputs(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str, i64 0, i64 0), i32 %9)
store i32 1, i32* %3
br label %19
11: ; preds = %2
%12 = load i8**, i8*** %5
%13 = getelementptr inbounds i8*, i8** %12, i64 1
%14 = load i8*, i8** %13
%15 = call i32 @print_word_frequencies(i8* %14)
%16 = icmp ne i32 %15, 0
br i1 %16, label %18, label %17
17: ; preds = %11
store i32 1, i32* %3
br label %19
18: ; preds = %11
store i32 0, i32* %3
br label %19
19: ; preds = %18, %17, %8
%20 = load i32, i32* %3
ret i32 %20
}

LLVM IR (-O2):
@.str = [50 x i8] c"error: you must supply a filename as an argument\0A\00"
@stderr = global i32 0
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %7, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = tail call i32 @fputs(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str, i64 0, i64 0), i32 %5)
br label %13
7: ; preds = %2
%8 = getelementptr inbounds i8*, i8** %1, i64 1
%9 = load i8*, i8** %8
%10 = tail call i32 @print_word_frequencies(i8* %9)
%11 = icmp eq i32 %10, 0
%12 = zext i1 %11 to i32
br label %13
13: ; preds = %7, %4
%14 = phi i32 [ 1, %4 ], [ %12, %7 ]
ret i32 %14
}