#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 usage(char *str) {
  printf("Usage:\n");
  printf("%s r addr(hex)			-- read value from addr\n", str);
  printf("%s w addr(hex) value(hex)		-- write value to addr\n", str);
  printf("%s d addr1(hex) addr2(hex)		-- dump value from addr1 to "
         "addr2\n",
         str);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xeeb(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf0c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rbx
lea    0xf71(%rip),%rdi
call   1030 <puts@plt>
lea    0xec9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xee2(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf04(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
pop    %rbx
jmp    1040 <printf@plt>

LLVM IR (-O0):
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [42 x i8] c"%s r addr(hex)\09\09\09-- read value from addr\0A\00"
@.str.2 = [51 x i8] c"%s w addr(hex) value(hex)\09\09-- write value to addr\0A\00"
@.str.3 = [63 x i8] c"%s d addr1(hex) addr2(hex)\09\09-- dump value from addr1 to addr2\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = load i8*, i8** %2
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.2, i64 0, i64 0), i8* %6)
%8 = load i8*, i8** %2
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.3, i64 0, i64 0), i8* %8)
ret void
}

LLVM IR (-O2):
@.str.1 = [42 x i8] c"%s r addr(hex)\09\09\09-- read value from addr\0A\00"
@.str.2 = [51 x i8] c"%s w addr(hex) value(hex)\09\09-- write value to addr\0A\00"
@.str.3 = [63 x i8] c"%s d addr1(hex) addr2(hex)\09\09-- dump value from addr1 to addr2\0A\00"
@str = [7 x i8] c"Usage:\00"
define void @usage(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([63 x i8], [63 x i8]* @.str.3, i64 0, i64 0), i8* %0)
ret void
}