#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*/ action(char, int);
int /*<<< orphan*/ getchar();
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, ...);
main() {
  char my_char;
  int my_num;
  printf("Enter a character\n");
  scanf("%1s", &my_char);
  printf("Enter a number\n");
  scanf("%d", &my_num);
  printf("See function below:\n\n");
  action(my_char, my_num);
  printf("\n\nSee function above:");
  getchar();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xeb1(%rip),%rdi
call   1030 <printf@plt>
lea    0xeb8(%rip),%rdi
lea    -0x1(%rbp),%rsi
mov    $0x0,%al
call   1050 <scanf@plt>
lea    0xeaa(%rip),%rdi
call   1030 <printf@plt>
lea    0xeae(%rip),%rdi
lea    -0x8(%rbp),%rsi
mov    $0x0,%al
call   1050 <scanf@plt>
lea    0xe9f(%rip),%rdi
call   1030 <printf@plt>
mov    -0x1(%rbp),%al
mov    -0x8(%rbp),%esi
movsbl %al,%edi
call   1060 <action@plt>
lea    0xe9b(%rip),%rdi
call   1030 <printf@plt>
mov    $0x0,%al
call   1040 <getchar@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xec5(%rip),%rdi
call   1030 <puts@plt>
lea    0xe9c(%rip),%rdi
lea    0x3(%rsp),%rsi
xor    %eax,%eax
call   1060 <scanf@plt>
lea    0xeb8(%rip),%rdi
call   1030 <puts@plt>
lea    0xe81(%rip),%rdi
lea    0x4(%rsp),%rsi
xor    %eax,%eax
call   1060 <scanf@plt>
lea    0xea8(%rip),%rdi
call   1030 <puts@plt>
movsbl 0x3(%rsp),%edi
mov    0x4(%rsp),%esi
call   1070 <action@plt>
lea    0xe57(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
call   1050 <getchar@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Enter a character\0A\00"
@.str.1 = [4 x i8] c"%1s\00"
@.str.2 = [16 x i8] c"Enter a number\0A\00"
@.str.3 = [3 x i8] c"%d\00"
@.str.4 = [22 x i8] c"See function below:\0A\0A\00"
@.str.5 = [22 x i8] c"\0A\0ASee function above:\00"
define i32 @main() {
%1 = alloca i8
%2 = alloca i32
%3 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%4 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %1)
%5 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0))
%6 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32* %2)
%7 = call i32 @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.4, i64 0, i64 0))
%8 = load i8, i8* %1
%9 = load i32, i32* %2
%10 = call i32 @action(i8 signext %8, i32 %9)
%11 = call i32 @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.5, i64 0, i64 0))
%12 = call i32 (...) @getchar()
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [4 x i8] c"%1s\00"
@.str.3 = [3 x i8] c"%d\00"
@.str.5 = [22 x i8] c"\0A\0ASee function above:\00"
@str = [18 x i8] c"Enter a character\00"
@str.6 = [15 x i8] c"Enter a number\00"
@str.7 = [21 x i8] c"See function below:\0A\00"
define i32 @main() {
%1 = alloca i8
%2 = alloca i32
%3 = bitcast i32* %2 to i8*
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i8* %1)
%6 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @str.6, i64 0, i64 0))
%7 = call i32 (i8*, ...) @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32* %2)
%8 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 x i8]* @str.7, i64 0, i64 0))
%9 = load i8, i8* %1
%10 = load i32, i32* %2
%11 = call i32 @action(i8 signext %9, i32 %10)
%12 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @.str.5, i64 0, i64 0))
%13 = call i32 (...) @getchar()
ret i32 0
}