#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*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *, ...);
void help(char *cmd) {
  printf("\nMEMCPY Benchmark\n\n");
  printf("usage: %s [loops] [start] [end] [salign] [dalign]\n\n", cmd);
  printf("options:  loops  - initial loop count (thousands)\n");
  printf("          start  - starting buffer size (Kbytes)\n");
  printf("          end    - ending buffer size (Kbytes)\n");
  printf("          salign - source alignment (bytes)\n");
  printf("          dalign - destination alignment (bytes)\n");
  printf("\n");
  exit(0);
}


x86 assembly (clang, -O0):
<help>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xecd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xecf(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xef5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf1a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf3e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf60(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf7f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %edi,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<help>:
push   %rbx
mov    %rdi,%rbx
lea    0xee9(%rip),%rdi
call   1040 <puts@plt>
lea    0xea9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xedf(%rip),%rdi
call   1040 <puts@plt>
lea    0xf05(%rip),%rdi
call   1040 <puts@plt>
lea    0xf2a(%rip),%rdi
call   1040 <puts@plt>
lea    0xf4d(%rip),%rdi
call   1040 <puts@plt>
lea    0xf6d(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %edi,%edi
call   1060 <exit@plt>

LLVM IR (-O0):
@.str = [20 x i8] c"\0AMEMCPY Benchmark\0A\0A\00"
@.str.1 = [52 x i8] c"usage: %s [loops] [start] [end] [salign] [dalign]\0A\0A\00"
@.str.2 = [51 x i8] c"options: loops - initial loop count (thousands)\0A\00"
@.str.3 = [50 x i8] c" start - starting buffer size (Kbytes)\0A\00"
@.str.4 = [48 x i8] c" end - ending buffer size (Kbytes)\0A\00"
@.str.5 = [45 x i8] c" salign - source alignment (bytes)\0A\00"
@.str.6 = [50 x i8] c" dalign - destination alignment (bytes)\0A\00"
@.str.7 = [2 x i8] c"\0A\00"
define void @help(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.5, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.6, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.7, i64 0, i64 0))
%12 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@.str.1 = [52 x i8] c"usage: %s [loops] [start] [end] [salign] [dalign]\0A\0A\00"
@str = [19 x i8] c"\0AMEMCPY Benchmark\0A\00"
@str.8 = [50 x i8] c"options: loops - initial loop count (thousands)\00"
@str.9 = [49 x i8] c" start - starting buffer size (Kbytes)\00"
@str.10 = [47 x i8] c" end - ending buffer size (Kbytes)\00"
@str.11 = [44 x i8] c" salign - source alignment (bytes)\00"
@str.12 = [49 x i8] c" dalign - destination alignment (bytes)\00"
define void @help(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([19 x i8], [19 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([52 x i8], [52 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([50 x i8], [50 x i8]* @str.8, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.9, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([47 x i8], [47 x i8]* @str.10, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([44 x i8], [44 x i8]* @str.11, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str.12, i64 0, i64 0))
%9 = tail call i32 @putchar(i32 10)
%10 = tail call i32 @exit(i32 0)
unreachable
}