#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 main(int argc, char *argv[]) {
  printf("Hello, world!\n");
  printf("sizeof(unsigned char):       %d\n", sizeof(unsigned char));
  printf("sizeof(unsigned short):      %d\n", sizeof(unsigned short));
  printf("sizeof(unsigned int):        %d\n", sizeof(unsigned int));
  printf("sizeof(unsigned long):       %d\n", sizeof(unsigned long));
  printf("sizeof(unsigned long long):  %d\n", sizeof(unsigned long long));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed4(%rip),%rdi
mov    $0x1,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee2(%rip),%rdi
mov    $0x2,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef0(%rip),%rdi
mov    $0x4,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xefe(%rip),%rdi
mov    $0x8,%esi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf0c(%rip),%rdi
mov    $0x8,%esi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xf7d(%rip),%rdi
call   1030 <puts@plt>
lea    0xecc(%rip),%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeda(%rip),%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xee8(%rip),%rdi
mov    $0x4,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xef6(%rip),%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf04(%rip),%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [15 x i8] c"Hello, world!\0A\00"
@.str.1 = [33 x i8] c"sizeof(unsigned char): %d\0A\00"
@.str.2 = [33 x i8] c"sizeof(unsigned short): %d\0A\00"
@.str.3 = [33 x i8] c"sizeof(unsigned int): %d\0A\00"
@.str.4 = [33 x i8] c"sizeof(unsigned long): %d\0A\00"
@.str.5 = [33 x i8] c"sizeof(unsigned long long): %d\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.1, i64 0, i64 0), i64 1)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.2, i64 0, i64 0), i64 2)
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.3, i64 0, i64 0), i64 4)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.4, i64 0, i64 0), i64 8)
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.5, i64 0, i64 0), i64 8)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [33 x i8] c"sizeof(unsigned char): %d\0A\00"
@.str.2 = [33 x i8] c"sizeof(unsigned short): %d\0A\00"
@.str.3 = [33 x i8] c"sizeof(unsigned int): %d\0A\00"
@.str.4 = [33 x i8] c"sizeof(unsigned long): %d\0A\00"
@.str.5 = [33 x i8] c"sizeof(unsigned long long): %d\0A\00"
@str = [14 x i8] c"Hello, world!\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.1, i64 0, i64 0), i64 1)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.2, i64 0, i64 0), i64 2)
%6 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.3, i64 0, i64 0), i64 4)
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.4, i64 0, i64 0), i64 8)
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.5, i64 0, i64 0), i64 8)
ret i32 0
}