#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 *, float *);
int main() {
  float a, b, c, max;
  printf("4islo");
  scanf("%f", &a);
  printf("4islo");
  scanf("%f", &b);
  printf("4islo");
  scanf("%f", &c);
  max = a;
  if (b > a)
    max = b;
  if (c > max)
    max = c;
  printf("\n%f", max);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec3(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeac(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xea5(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xe8e(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe87(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0xc(%rbp),%xmm0
ucomiss -0x8(%rbp),%xmm0
jbe    11ac <main+0x8c>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x10(%rbp),%xmm0
ucomiss -0x14(%rbp),%xmm0
jbe    11c5 <main+0xa5>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
lea    0xe31(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x18,%rsp
lea    0xed2(%rip),%r14
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xec8(%rip),%rbx
lea    0x14(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x10(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0x10(%rsp),%xmm0
maxss  0x14(%rsp),%xmm0
movss  0xc(%rsp),%xmm1
maxss  %xmm0,%xmm1
xorps  %xmm0,%xmm0
cvtss2sd %xmm1,%xmm0
lea    0xe68(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [6 x i8] c"4islo\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [4 x i8] c"\0A%f\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = alloca float
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %4)
%12 = load float, float* %2
store float %12, float* %5
%13 = load float, float* %3
%14 = load float, float* %2
%15 = fcmp ogt float %13, %14
br i1 %15, label %16, label %18
16: ; preds = %0
%17 = load float, float* %3
store float %17, float* %5
br label %18
18: ; preds = %16, %0
%19 = load float, float* %4
%20 = load float, float* %5
%21 = fcmp ogt float %19, %20
br i1 %21, label %22, label %24
22: ; preds = %18
%23 = load float, float* %4
store float %23, float* %5
br label %24
24: ; preds = %22, %18
%25 = load float, float* %5
%26 = fpext float %25 to double
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), double %26)
ret i32 0
}

LLVM IR (-O2):
@.str = [6 x i8] c"4islo\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [4 x i8] c"\0A%f\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = bitcast float* %1 to i8*
%5 = bitcast float* %2 to i8*
%6 = bitcast float* %3 to i8*
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %2)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %3)
%13 = load float, float* %1
%14 = load float, float* %2
%15 = fcmp ogt float %14, %13
%16 = select i1 %15, float %14, float %13
%17 = load float, float* %3
%18 = fcmp ogt float %17, %16
%19 = select i1 %18, float %17, float %16
%20 = fpext float %19 to double
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), double %20)
ret i32 0
}