#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(void) {
  printf("Usage: "
         "bdrsync"
         " [OPTIONS] BLKDEV1 BLKDEV2\n");
  printf("Efficiently copy contents of BLKDEV1 to BLKDEV2.\n");
  printf("\n");
  printf(" -v, --verbose         explain what is being done\n");
  printf(" -V, --version         output verison information and exit\n");
  printf(" -h, --help            display this help and exit\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xf03(%rip),%rdi
call   1030 <printf@plt>
lea    0xf27(%rip),%rdi
call   1030 <printf@plt>
lea    0xf1d(%rip),%rdi
call   1030 <printf@plt>
lea    0xf44(%rip),%rdi
call   1030 <printf@plt>
lea    0xf74(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
lea    0xed8(%rip),%rdi
call   1040 <puts@plt>
lea    0xef5(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xf10(%rip),%rdi
call   1040 <puts@plt>
lea    0xf36(%rip),%rdi
call   1040 <puts@plt>
lea    0xf65(%rip),%rdi
pop    %rax
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [42 x i8] c"Usage: bdrsync [OPTIONS] BLKDEV1 BLKDEV2\0A\00"
@.str.1 = [50 x i8] c"Efficiently copy contents of BLKDEV1 to BLKDEV2.\0A\00"
@.str.2 = [2 x i8] c"\0A\00"
@.str.3 = [51 x i8] c" -v, --verbose explain what is being done\0A\00"
@.str.4 = [60 x i8] c" -V, --version output verison information and exit\0A\00"
@.str.5 = [51 x i8] c" -h, --help display this help and exit\0A\00"
define void @usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.5, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [41 x i8] c"Usage: bdrsync [OPTIONS] BLKDEV1 BLKDEV2\00"
@str.6 = [49 x i8] c"Efficiently copy contents of BLKDEV1 to BLKDEV2.\00"
@str.7 = [50 x i8] c" -v, --verbose explain what is being done\00"
@str.8 = [59 x i8] c" -V, --version output verison information and exit\00"
@str.9 = [50 x i8] c" -h, --help display this help and exit\00"
define void @usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([41 x i8], [41 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.6, i64 0, i64 0))
%3 = tail call i32 @putchar(i32 10)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([50 x i8], [50 x i8]* @str.7, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([59 x i8], [59 x i8]* @str.8, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([50 x i8], [50 x i8]* @str.9, i64 0, i64 0))
ret void
}