#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 print_usage(void) {
  printf("Version: "
         "2.0"
         "\n");
  printf("Usage: rpirtscts on|off\n");
  printf("Enable or disable hardware flow control pins on ttyAMA0.\n");
  printf("\nFor 26 pin GPIO header boards:\n");
  printf("P5 header pins remap as follows:\n");
  printf("    P5-05 (GPIO30) -> CTS (input)\n");
  printf("    P5-06 (GPIO31) -> RTS (output)\n");
  printf("\nFor 40 pin GPIO header boards:\n");
  printf("    P1-36 (GPIO16) -> CTS (input)\n");
  printf("    P1-11 (GPIO17) -> RTS (output)\n");
  printf("\nYou may also need to enable flow control in the driver:\n");
  printf("    stty -F /dev/ttyAMA0 crtscts\n");
}


x86 assembly (clang, -O0):
<print_usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xee7(%rip),%rdi
call   1030 <printf@plt>
lea    0xef4(%rip),%rdi
call   1030 <printf@plt>
lea    0xf22(%rip),%rdi
call   1030 <printf@plt>
lea    0xf37(%rip),%rdi
call   1030 <printf@plt>
lea    0xf4d(%rip),%rdi
call   1030 <printf@plt>
lea    0xf64(%rip),%rdi
call   1030 <printf@plt>
lea    0xf7c(%rip),%rdi
call   1030 <printf@plt>
lea    0xf91(%rip),%rdi
call   1030 <printf@plt>
lea    0xfa8(%rip),%rdi
call   1030 <printf@plt>
lea    0xfc0(%rip),%rdi
call   1030 <printf@plt>
lea    0xfee(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_usage>:
push   %rax
lea    0xee8(%rip),%rdi
call   1030 <puts@plt>
lea    0xee9(%rip),%rdi
call   1030 <puts@plt>
lea    0xef5(%rip),%rdi
call   1030 <puts@plt>
lea    0xf22(%rip),%rdi
call   1030 <puts@plt>
lea    0xf36(%rip),%rdi
call   1030 <puts@plt>
lea    0xf4b(%rip),%rdi
call   1030 <puts@plt>
lea    0xf61(%rip),%rdi
call   1030 <puts@plt>
lea    0xf78(%rip),%rdi
call   1030 <puts@plt>
lea    0xf8c(%rip),%rdi
call   1030 <puts@plt>
lea    0xfa2(%rip),%rdi
call   1030 <puts@plt>
lea    0xfb9(%rip),%rdi
call   1030 <puts@plt>
lea    0xfe6(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [14 x i8] c"Version: 2.0\0A\00"
@.str.1 = [25 x i8] c"Usage: rpirtscts on|off\0A\00"
@.str.2 = [58 x i8] c"Enable or disable hardware flow control pins on ttyAMA0.\0A\00"
@.str.3 = [33 x i8] c"\0AFor 26 pin GPIO header boards:\0A\00"
@.str.4 = [34 x i8] c"P5 header pins remap as follows:\0A\00"
@.str.5 = [35 x i8] c" P5-05 (GPIO30) -> CTS (input)\0A\00"
@.str.6 = [36 x i8] c" P5-06 (GPIO31) -> RTS (output)\0A\00"
@.str.7 = [33 x i8] c"\0AFor 40 pin GPIO header boards:\0A\00"
@.str.8 = [35 x i8] c" P1-36 (GPIO16) -> CTS (input)\0A\00"
@.str.9 = [36 x i8] c" P1-11 (GPIO17) -> RTS (output)\0A\00"
@.str.10 = [58 x i8] c"\0AYou may also need to enable flow control in the driver:\0A\00"
@.str.11 = [34 x i8] c" stty -F /dev/ttyAMA0 crtscts\0A\00"
define void @print_usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.5, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.6, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.7, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.8, i64 0, i64 0))
%10 = call i32 @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.9, i64 0, i64 0))
%11 = call i32 @printf(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.10, i64 0, i64 0))
%12 = call i32 @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.11, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [13 x i8] c"Version: 2.0\00"
@str.12 = [24 x i8] c"Usage: rpirtscts on|off\00"
@str.13 = [57 x i8] c"Enable or disable hardware flow control pins on ttyAMA0.\00"
@str.14 = [32 x i8] c"\0AFor 26 pin GPIO header boards:\00"
@str.15 = [33 x i8] c"P5 header pins remap as follows:\00"
@str.16 = [34 x i8] c" P5-05 (GPIO30) -> CTS (input)\00"
@str.17 = [35 x i8] c" P5-06 (GPIO31) -> RTS (output)\00"
@str.18 = [32 x i8] c"\0AFor 40 pin GPIO header boards:\00"
@str.19 = [34 x i8] c" P1-36 (GPIO16) -> CTS (input)\00"
@str.20 = [35 x i8] c" P1-11 (GPIO17) -> RTS (output)\00"
@str.21 = [57 x i8] c"\0AYou may also need to enable flow control in the driver:\00"
@str.22 = [33 x i8] c" stty -F /dev/ttyAMA0 crtscts\00"
define void @print_usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str.12, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([57 x i8], [57 x i8]* @str.13, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.14, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.15, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str.16, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @str.17, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.18, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([34 x i8], [34 x i8]* @str.19, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @str.20, i64 0, i64 0))
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([57 x i8], [57 x i8]* @str.21, i64 0, i64 0))
%12 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @str.22, i64 0, i64 0))
ret void
}