#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*/ exit(int);
int /*<<< orphan*/ fputs(char *, int /*<<< orphan*/);
int /*<<< orphan*/ stderr;
void usage() {
  fputs("usage: ref [-a] [-t] [-c class] [-f file] tag\n", stderr);
  fputs("   -a        function's args may be flush against left margin\n",
        stderr);
  fputs("   -t        output tag info, instead of the function header\n",
        stderr);
  fputs("   -f File   tag might be a static function in File\n", stderr);
  fputs("   -c Class  tag might be a member of class Class\n", stderr);
  exit(2);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
mov    0x2eb5(%rip),%rax
mov    (%rax),%esi
lea    0xecc(%rip),%rdi
call   1030 <fputs@plt>
mov    0x2ea0(%rip),%rax
mov    (%rax),%esi
lea    0xee6(%rip),%rdi
call   1030 <fputs@plt>
mov    0x2e8b(%rip),%rax
mov    (%rax),%esi
lea    0xf10(%rip),%rdi
call   1030 <fputs@plt>
mov    0x2e76(%rip),%rax
mov    (%rax),%esi
lea    0xf39(%rip),%rdi
call   1030 <fputs@plt>
mov    0x2e61(%rip),%rax
mov    (%rax),%esi
lea    0xf59(%rip),%rdi
call   1030 <fputs@plt>
mov    $0x2,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    0x2eb8(%rip),%rbx
mov    (%rbx),%esi
lea    0xecf(%rip),%rdi
call   1030 <fputs@plt>
mov    (%rbx),%esi
lea    0xef0(%rip),%rdi
call   1030 <fputs@plt>
mov    (%rbx),%esi
lea    0xf21(%rip),%rdi
call   1030 <fputs@plt>
mov    (%rbx),%esi
lea    0xf51(%rip),%rdi
call   1030 <fputs@plt>
mov    (%rbx),%esi
lea    0xf78(%rip),%rdi
call   1030 <fputs@plt>
mov    $0x2,%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@.str = [47 x i8] c"usage: ref [-a] [-t] [-c class] [-f file] tag\0A\00"
@stderr = global i32 0
@.str.1 = [63 x i8] c" -a function's args may be flush against left margin\0A\00"
@.str.2 = [62 x i8] c" -t output tag info, instead of the function header\0A\00"
@.str.3 = [53 x i8] c" -f File tag might be a static function in File\0A\00"
@.str.4 = [51 x i8] c" -c Class tag might be a member of class Class\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = call i32 @fputs(i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = load i32, i32* @stderr
%4 = call i32 @fputs(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = load i32, i32* @stderr
%6 = call i32 @fputs(i8* getelementptr inbounds ([62 x i8], [62 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = load i32, i32* @stderr
%8 = call i32 @fputs(i8* getelementptr inbounds ([53 x i8], [53 x i8]* @.str.3, i64 0, i64 0), i32 %7)
%9 = load i32, i32* @stderr
%10 = call i32 @fputs(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.4, i64 0, i64 0), i32 %9)
%11 = call i32 @exit(i32 2)
unreachable
}

LLVM IR (-O2):
@.str = [47 x i8] c"usage: ref [-a] [-t] [-c class] [-f file] tag\0A\00"
@stderr = global i32 0
@.str.1 = [63 x i8] c" -a function's args may be flush against left margin\0A\00"
@.str.2 = [62 x i8] c" -t output tag info, instead of the function header\0A\00"
@.str.3 = [53 x i8] c" -f File tag might be a static function in File\0A\00"
@.str.4 = [51 x i8] c" -c Class tag might be a member of class Class\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = tail call i32 @fputs(i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = load i32, i32* @stderr
%4 = tail call i32 @fputs(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = load i32, i32* @stderr
%6 = tail call i32 @fputs(i8* getelementptr inbounds ([62 x i8], [62 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = load i32, i32* @stderr
%8 = tail call i32 @fputs(i8* getelementptr inbounds ([53 x i8], [53 x i8]* @.str.3, i64 0, i64 0), i32 %7)
%9 = load i32, i32* @stderr
%10 = tail call i32 @fputs(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.4, i64 0, i64 0), i32 %9)
%11 = tail call i32 @exit(i32 2)
unreachable
}