#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 /*<<< orphan*/ scanf(char *, int *);
int prompt_for_precision(void) {
  int result;
  printf("\nMENU to select precision : \n");
  printf("  0. standard double precision;\n");
  printf("  1. double double precision;\n");
  printf("  2. quad double precision;\n");
  printf("Type 0, 1, or 2 to select the precision : ");
  scanf("%d", &result);
  return result;
}


x86 assembly (clang, -O0):
<prompt_for_precision>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed1(%rip),%rdi
call   1030 <printf@plt>
lea    0xee3(%rip),%rdi
call   1030 <printf@plt>
lea    0xef8(%rip),%rdi
call   1030 <printf@plt>
lea    0xf0b(%rip),%rdi
call   1030 <printf@plt>
lea    0xf1c(%rip),%rdi
call   1030 <printf@plt>
lea    0xf3b(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<prompt_for_precision>:
push   %rax
lea    0xef6(%rip),%rdi
call   1030 <puts@plt>
lea    0xf07(%rip),%rdi
call   1030 <puts@plt>
lea    0xf1b(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2d(%rip),%rdi
call   1030 <puts@plt>
lea    0xe98(%rip),%rdi
call   1040 <printf@plt>
lea    0xeb7(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [30 x i8] c"\0AMENU to select precision : \0A\00"
@.str.1 = [33 x i8] c" 0. standard double precision;\0A\00"
@.str.2 = [31 x i8] c" 1. double double precision;\0A\00"
@.str.3 = [29 x i8] c" 2. quad double precision;\0A\00"
@.str.4 = [43 x i8] c"Type 0, 1, or 2 to select the precision : \00"
@.str.5 = [3 x i8] c"%d\00"
define i32 @prompt_for_precision() {
%1 = alloca i32
%2 = call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.2, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str.4, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i32* %1)
%8 = load i32, i32* %1
ret i32 %8
}

LLVM IR (-O2):
@.str.4 = [43 x i8] c"Type 0, 1, or 2 to select the precision : \00"
@.str.5 = [3 x i8] c"%d\00"
@str = [29 x i8] c"\0AMENU to select precision : \00"
@str.6 = [32 x i8] c" 0. standard double precision;\00"
@str.7 = [30 x i8] c" 1. double double precision;\00"
@str.8 = [28 x i8] c" 2. quad double precision;\00"
define i32 @prompt_for_precision() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([32 x i8], [32 x i8]* @str.6, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @str.7, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @str.8, i64 0, i64 0))
%7 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @.str.4, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.5, i64 0, i64 0), i32* %1)
%9 = load i32, i32* %1
ret i32 %9
}