#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 maximum(int, int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *, int *, int *);
void fig05_04() {
  int number1;
  int number2;
  int number3;
  printf("%s", "Enter three integers:");
  scanf("%d%d%d", &number1, &number2, &number3);
  printf("Maximum is:%d\n", maximum(number1, number2, number3));
}


x86 assembly (clang, -O0):
<fig05_04>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xec1(%rip),%rdi
lea    0xebd(%rip),%rsi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec5(%rip),%rdi
lea    -0x4(%rbp),%rsi
lea    -0x8(%rbp),%rdx
lea    -0xc(%rbp),%rcx
call   1050 <scanf@plt>
mov    -0x4(%rbp),%edi
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
call   1030 <maximum@plt>
mov    %eax,%esi
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<fig05_04>:
sub    $0x18,%rsp
lea    0xec5(%rip),%rdi
lea    0xec1(%rip),%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec9(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
call   1050 <scanf@plt>
mov    0x14(%rsp),%edi
mov    0x10(%rsp),%esi
mov    0xc(%rsp),%edx
call   1030 <maximum@plt>
lea    0xea4(%rip),%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%s\00"
@.str.1 = [22 x i8] c"Enter three integers:\00"
@.str.2 = [7 x i8] c"%d%d%d\00"
@.str.3 = [15 x i8] c"Maximum is:%d\0A\00"
define void @fig05_04() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), i32* %1, i32* %2, i32* %3)
%6 = load i32, i32* %1
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = call i32 @maximum(i32 %6, i32 %7, i32 %8)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i32 %9)
ret void
}

LLVM IR (-O2):
@.str = [3 x i8] c"%s\00"
@.str.1 = [22 x i8] c"Enter three integers:\00"
@.str.2 = [7 x i8] c"%d%d%d\00"
@.str.3 = [15 x i8] c"Maximum is:%d\0A\00"
define void @fig05_04() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = bitcast i32* %1 to i8*
%5 = bitcast i32* %2 to i8*
%6 = bitcast i32* %3 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.2, i64 0, i64 0), i32* %1, i32* %2, i32* %3)
%9 = load i32, i32* %1
%10 = load i32, i32* %2
%11 = load i32, i32* %3
%12 = call i32 @maximum(i32 %9, i32 %10, i32 %11)
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0), i32 %12)
ret void
}