#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_arch() {
  int len = sizeof(int) * 8;
  printf("sizeof(int)=%d\n", len);
  len = sizeof(int *) * 8;
  printf("sizeof(int*)=%d\n", len);
  printf("__GNUC__ is defined\n");
  printf("__x86_64__  is defined\n");
  printf("__linux__ is defined\n");
  printf("__LP64__ is defined\n");
  printf("__amd64 is defined\n");
}


x86 assembly (clang, -O0):
<print_arch>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x20,-0x4(%rbp)
mov    -0x4(%rbp),%esi
lea    0xed7(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x40,-0x4(%rbp)
mov    -0x4(%rbp),%esi
lea    0xecf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeeb(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_arch>:
push   %rax
lea    0xed8(%rip),%rdi
mov    $0x20,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed5(%rip),%rdi
mov    $0x40,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xed3(%rip),%rdi
call   1030 <puts@plt>
lea    0xedb(%rip),%rdi
call   1030 <puts@plt>
lea    0xee6(%rip),%rdi
call   1030 <puts@plt>
lea    0xeef(%rip),%rdi
call   1030 <puts@plt>
lea    0xef7(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [16 x i8] c"sizeof(int)=%d\0A\00"
@.str.1 = [17 x i8] c"sizeof(int*)=%d\0A\00"
@.str.2 = [21 x i8] c"__GNUC__ is defined\0A\00"
@.str.3 = [24 x i8] c"__x86_64__ is defined\0A\00"
@.str.4 = [22 x i8] c"__linux__ is defined\0A\00"
@.str.5 = [21 x i8] c"__LP64__ is defined\0A\00"
@.str.6 = [20 x i8] c"__amd64 is defined\0A\00"
define void @print_arch() {
%1 = alloca i32
store i32 32, i32* %1
%2 = load i32, i32* %1
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i32 %2)
store i32 64, i32* %1
%4 = load i32, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.5, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.6, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [16 x i8] c"sizeof(int)=%d\0A\00"
@.str.1 = [17 x i8] c"sizeof(int*)=%d\0A\00"
@str = [20 x i8] c"__GNUC__ is defined\00"
@str.7 = [23 x i8] c"__x86_64__ is defined\00"
@str.8 = [21 x i8] c"__linux__ is defined\00"
@str.9 = [20 x i8] c"__LP64__ is defined\00"
@str.10 = [19 x i8] c"__amd64 is defined\00"
define void @print_arch() {
%1 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0), i32 32)
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 64)
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @str.7, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @str.8, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str.9, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str.10, i64 0, i64 0))
ret void
}