#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 *);
int explanation_matrix(void) {
  printf("\n");
  printf("|--------------------------------------------|\n");
  printf("| Select a number to                         |\n");
  printf("| Show remaining vacant seats         : 1    |\n");
  printf("| Occupy a vacant seat                : 2    |\n");
  printf("| Occupy first vacant window seat     : 3    |\n");
  printf("| Cancel occupied seat                : 4    |\n");
  printf("| Check if a seat is occupied         : 5    |\n");
  printf("| Show occupied seats                 : 6    |\n");
  printf("| Show on screen seats status         : 7    |\n");
  printf("| Save seats status (layout.txt)      : 8    |\n");
  printf("| Exit the program                    : 0    |\n");
  printf("|--------------------------------------------|\n");
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<explanation_matrix>:
push   %rbp
mov    %rsp,%rbp
lea    0xf43(%rip),%rdi
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
call   1030 <printf@plt>
lea    0xefd(%rip),%rdi
call   1030 <printf@plt>
lea    0xf21(%rip),%rdi
call   1030 <printf@plt>
lea    0xf45(%rip),%rdi
call   1030 <printf@plt>
lea    0xf69(%rip),%rdi
call   1030 <printf@plt>
lea    0xf8d(%rip),%rdi
call   1030 <printf@plt>
lea    0xfb1(%rip),%rdi
call   1030 <printf@plt>
lea    0xfd5(%rip),%rdi
call   1030 <printf@plt>
lea    0xff9(%rip),%rdi
call   1030 <printf@plt>
lea    0x101d(%rip),%rdi
call   1030 <printf@plt>
lea    0x1041(%rip),%rdi
call   1030 <printf@plt>
lea    0xe55(%rip),%rdi
call   1030 <printf@plt>
lea    0xea7(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rbp
ret

x86 assembly (clang, -O2):
<explanation_matrix>:
push   %rbx
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0x10a4(%rip),%rbx
mov    %rbx,%rdi
call   1040 <puts@plt>
lea    0xebf(%rip),%rdi
call   1040 <puts@plt>
lea    0xee2(%rip),%rdi
call   1040 <puts@plt>
lea    0xf05(%rip),%rdi
call   1040 <puts@plt>
lea    0xf28(%rip),%rdi
call   1040 <puts@plt>
lea    0xf4b(%rip),%rdi
call   1040 <puts@plt>
lea    0xf6e(%rip),%rdi
call   1040 <puts@plt>
lea    0xf91(%rip),%rdi
call   1040 <puts@plt>
lea    0xfb4(%rip),%rdi
call   1040 <puts@plt>
lea    0xfd7(%rip),%rdi
call   1040 <puts@plt>
lea    0xffa(%rip),%rdi
call   1040 <puts@plt>
mov    %rbx,%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@.str.1 = [48 x i8] c"|--------------------------------------------|\0A\00"
@.str.2 = [48 x i8] c"| Select a number to |\0A\00"
@.str.3 = [48 x i8] c"| Show remaining vacant seats : 1 |\0A\00"
@.str.4 = [48 x i8] c"| Occupy a vacant seat : 2 |\0A\00"
@.str.5 = [48 x i8] c"| Occupy first vacant window seat : 3 |\0A\00"
@.str.6 = [48 x i8] c"| Cancel occupied seat : 4 |\0A\00"
@.str.7 = [48 x i8] c"| Check if a seat is occupied : 5 |\0A\00"
@.str.8 = [48 x i8] c"| Show occupied seats : 6 |\0A\00"
@.str.9 = [48 x i8] c"| Show on screen seats status : 7 |\0A\00"
@.str.10 = [48 x i8] c"| Save seats status (layout.txt) : 8 |\0A\00"
@.str.11 = [48 x i8] c"| Exit the program : 0 |\0A\00"
define i32 @explanation_matrix() {
%1 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.5, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.6, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.7, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.8, i64 0, i64 0))
%10 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.9, i64 0, i64 0))
%11 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.10, i64 0, i64 0))
%12 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.11, i64 0, i64 0))
%13 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.1, i64 0, i64 0))
%14 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@str.12 = [47 x i8] c"| Select a number to |\00"
@str.13 = [47 x i8] c"| Show remaining vacant seats : 1 |\00"
@str.14 = [47 x i8] c"| Occupy a vacant seat : 2 |\00"
@str.15 = [47 x i8] c"| Occupy first vacant window seat : 3 |\00"
@str.16 = [47 x i8] c"| Cancel occupied seat : 4 |\00"
@str.17 = [47 x i8] c"| Check if a seat is occupied : 5 |\00"
@str.18 = [47 x i8] c"| Show occupied seats : 6 |\00"
@str.19 = [47 x i8] c"| Show on screen seats status : 7 |\00"
@str.20 = [47 x i8] c"| Save seats status (layout.txt) : 8 |\00"
@str.21 = [47 x i8] c"| Exit the program : 0 |\00"
@str.22 = [47 x i8] c"|--------------------------------------------|\00"
define i32 @explanation_matrix() {
%1 = tail call i32 @putchar(i32 10)
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.22, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.12, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.13, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.14, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.15, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.16, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.17, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.18, i64 0, i64 0))
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.19, i64 0, i64 0))
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.20, i64 0, i64 0))
%12 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.21, i64 0, i64 0))
%13 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.22, i64 0, i64 0))
%14 = tail call i32 @putchar(i32 10)
ret i32 0
}