#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*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ stderr;
void usage(void) {
  fprintf(stderr, "Usage: "
                  "bgrep"
                  " [options] pattern file1 ...\n");
  fprintf(stderr, "   pattern:    A hex string like 1234..ABCD.F where . is a "
                  "wildcard nibble\n"
                  "               unless -s is specified\n");
  fprintf(stderr,
          "Options:\n"
          "   -r          handle directories recursively\n"
          "   -s          pattern specified using ASCII string instead of hex\n"
          "   -v          print version and exit\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
mov    0x2ec5(%rip),%rax
mov    (%rax),%edi
lea    0xedc(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2eb0(%rip),%rax
mov    (%rax),%edi
lea    0xef1(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e9b(%rip),%rax
mov    (%rax),%edi
lea    0xf4e(%rip),%rsi
call   1030 <fprintf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    0x2ec8(%rip),%rbx
mov    (%rbx),%edi
lea    0xedf(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xefb(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf5f(%rip),%rsi
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [42 x i8] c"Usage: bgrep [options] pattern file1 ...\0A\00"
@.str.1 = [114 x i8] c" pattern: A hex string like 1234..ABCD.F where . is a wildcard nibble\0A unless -s is specified\0A\00"
@.str.2 = [161 x i8] c"Options:\0A -r handle directories recursively\0A -s pattern specified using ASCII string instead of hex\0A -v print version and exit\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([114 x i8], [114 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([161 x i8], [161 x i8]* @.str.2, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [42 x i8] c"Usage: bgrep [options] pattern file1 ...\0A\00"
@.str.1 = [114 x i8] c" pattern: A hex string like 1234..ABCD.F where . is a wildcard nibble\0A unless -s is specified\0A\00"
@.str.2 = [161 x i8] c"Options:\0A -r handle directories recursively\0A -s pattern specified using ASCII string instead of hex\0A -v print version and exit\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = tail call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = tail call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([114 x i8], [114 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([161 x i8], [161 x i8]* @.str.2, i64 0, i64 0))
ret void
}