#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*/ printf(char *, ...);
void _usage(const char *prog) {
  printf("\n");
  printf("Usage: $ %s AUDIO.wav [FROM_SAMPLE] [NUM_SAMPLES]\n", prog);
  printf("\n");
  printf("Example: %s ../tools/res/audio.wav\n", prog);
  printf("         %s ../tools/res/audio.wav 0 100\n", prog);
  printf("         %s ../tools/res/audio.wav 25 75\n", prog);
  printf("\n");
}


x86 assembly (clang, -O0):
<_usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xf5c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xecb(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf3c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xede(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xef0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf08(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<_usage>:
push   %rbx
mov    %rdi,%rbx
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xecb(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xee3(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xef6(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf0f(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
pop    %rbx
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@.str.1 = [51 x i8] c"Usage: $ %s AUDIO.wav [FROM_SAMPLE] [NUM_SAMPLES]\0A\00"
@.str.2 = [36 x i8] c"Example: %s ../tools/res/audio.wav\0A\00"
@.str.3 = [42 x i8] c" %s ../tools/res/audio.wav 0 100\0A\00"
@.str.4 = [42 x i8] c" %s ../tools/res/audio.wav 25 75\0A\00"
define void @_usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%7 = load i8*, i8** %2
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.2, i64 0, i64 0), i8* %7)
%9 = load i8*, i8** %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.3, i64 0, i64 0), i8* %9)
%11 = load i8*, i8** %2
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.4, i64 0, i64 0), i8* %11)
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [51 x i8] c"Usage: $ %s AUDIO.wav [FROM_SAMPLE] [NUM_SAMPLES]\0A\00"
@.str.2 = [36 x i8] c"Example: %s ../tools/res/audio.wav\0A\00"
@.str.3 = [42 x i8] c" %s ../tools/res/audio.wav 0 100\0A\00"
@.str.4 = [42 x i8] c" %s ../tools/res/audio.wav 25 75\0A\00"
define void @_usage(i8* %0) {
%2 = tail call i32 @putchar(i32 10)
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 @putchar(i32 10)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([36 x i8], [36 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @.str.3, i64 0, i64 0), i8* %0)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @.str.4, i64 0, i64 0), i8* %0)
%8 = tail call i32 @putchar(i32 10)
ret void
}