#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() {
  printf("./prefix_calc <expression>\n\n");
  printf("<expression> must be in prefix form\n");
  printf("and with 1-digit numbers and no spaces\n");
  printf("(Sorry, no error checking for now\n\n");
  printf("For example:\n");
  printf("+23\n");
  printf("*+234\n");
  printf("*2/-593\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xef6(%rip),%rdi
call   1030 <printf@plt>
lea    0xf0f(%rip),%rdi
call   1030 <printf@plt>
lea    0xf2b(%rip),%rdi
call   1030 <printf@plt>
lea    0xf43(%rip),%rdi
call   1030 <printf@plt>
lea    0xf45(%rip),%rdi
call   1030 <printf@plt>
lea    0xf3e(%rip),%rdi
call   1030 <printf@plt>
lea    0xf39(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
lea    0xee8(%rip),%rdi
call   1030 <puts@plt>
lea    0xef8(%rip),%rdi
call   1030 <puts@plt>
lea    0xf10(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2b(%rip),%rdi
call   1030 <puts@plt>
lea    0xf42(%rip),%rdi
call   1030 <puts@plt>
lea    0xf43(%rip),%rdi
call   1030 <puts@plt>
lea    0xf3b(%rip),%rdi
call   1030 <puts@plt>
lea    0xf35(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [29 x i8] c"./prefix_calc <expression>\0A\0A\00"
@.str.1 = [37 x i8] c"<expression> must be in prefix form\0A\00"
@.str.2 = [40 x i8] c"and with 1-digit numbers and no spaces\0A\00"
@.str.3 = [36 x i8] c"(Sorry, no error checking for now\0A\0A\00"
@.str.4 = [14 x i8] c"For example:\0A\00"
@.str.5 = [5 x i8] c"+23\0A\00"
@.str.6 = [7 x i8] c"*+234\0A\00"
@.str.7 = [9 x i8] c"*2/-593\0A\00"
define void @usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.5, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.6, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.7, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [28 x i8] c"./prefix_calc <expression>\0A\00"
@str.8 = [36 x i8] c"<expression> must be in prefix form\00"
@str.9 = [39 x i8] c"and with 1-digit numbers and no spaces\00"
@str.10 = [35 x i8] c"(Sorry, no error checking for now\0A\00"
@str.11 = [13 x i8] c"For example:\00"
@str.12 = [4 x i8] c"+23\00"
@str.13 = [6 x i8] c"*+234\00"
@str.14 = [8 x i8] c"*2/-593\00"
define void @usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([36 x i8], [36 x i8]* @str.8, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([39 x i8], [39 x i8]* @str.9, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @str.10, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @str.11, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @str.12, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @str.13, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @str.14, i64 0, i64 0))
ret void
}