#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 *, float);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  float float1, float2, float3;
  scanf("%f", &float1);
  scanf("%f", &float2);
  scanf("%f", &float3);
  float max;
  if (float1 > float2) {
    if (float1 > float3)
      max = float1;
    else
      max = float3;
  } else if (float2 > float1) {
    if (float2 > float3)
      max = float2;
    else
      max = float3;
  }
  printf("%.1f", max);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeba(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xeaa(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
ucomiss -0xc(%rbp),%xmm0
jbe    119b <main+0x7b>
movss  -0x8(%rbp),%xmm0
ucomiss -0x10(%rbp),%xmm0
jbe    118c <main+0x6c>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    1196 <main+0x76>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    11dc <main+0xbc>
movss  -0xc(%rbp),%xmm0
ucomiss -0x8(%rbp),%xmm0
jbe    11d7 <main+0xb7>
movss  -0xc(%rbp),%xmm0
ucomiss -0x10(%rbp),%xmm0
jbe    11c8 <main+0xa8>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    11d2 <main+0xb2>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
jmp    11d7 <main+0xb7>
jmp    11dc <main+0xbc>
movss  -0x14(%rbp),%xmm0
lea    0xe1b(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1040 <scanf@plt>
movss  0xc(%rsp),%xmm0
movss  0x8(%rsp),%xmm1
ucomiss %xmm1,%xmm0
jbe    116c <main+0x4c>
maxss  0x4(%rsp),%xmm0
jmp    1175 <main+0x55>
maxss  0x4(%rsp),%xmm1
movaps %xmm1,%xmm0
lea    0xe87(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%f\00"
@.str.1 = [5 x i8] c"%.1f\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 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %2)
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %3)
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %4)
%9 = load float, float* %2
%10 = load float, float* %3
%11 = fcmp ogt float %9, %10
br i1 %11, label %12, label %21
12: ; preds = %0
%13 = load float, float* %2
%14 = load float, float* %4
%15 = fcmp ogt float %13, %14
br i1 %15, label %16, label %18
16: ; preds = %12
%17 = load float, float* %2
store float %17, float* %5
br label %20
18: ; preds = %12
%19 = load float, float* %4
store float %19, float* %5
br label %20
20: ; preds = %18, %16
br label %35
21: ; preds = %0
%22 = load float, float* %3
%23 = load float, float* %2
%24 = fcmp ogt float %22, %23
br i1 %24, label %25, label %34
25: ; preds = %21
%26 = load float, float* %3
%27 = load float, float* %4
%28 = fcmp ogt float %26, %27
br i1 %28, label %29, label %31
29: ; preds = %25
%30 = load float, float* %3
store float %30, float* %5
br label %33
31: ; preds = %25
%32 = load float, float* %4
store float %32, float* %5
br label %33
33: ; preds = %31, %29
br label %34
34: ; preds = %33, %21
br label %35
35: ; preds = %34, %20
%36 = load float, float* %5
%37 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float %36)
%38 = load i32, i32* %1
ret i32 %38
}

LLVM IR (-O2):
@.str = [3 x i8] c"%f\00"
@.str.1 = [5 x i8] c"%.1f\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 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %2)
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %3)
%10 = load float, float* %1
%11 = load float, float* %2
%12 = fcmp ogt float %10, %11
br i1 %12, label %13, label %17
13: ; preds = %0
%14 = load float, float* %3
%15 = fcmp ogt float %10, %14
%16 = select i1 %15, float %10, float %14
br label %22
17: ; preds = %0
%18 = fcmp ogt float %11, %10
%19 = load float, float* %3
%20 = fcmp ogt float %11, %19
%21 = select i1 %20, float %11, float %19
br label %22
22: ; preds = %17, %13
%23 = phi float [ %16, %13 ], [ %21, %17 ]
%24 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float %23)
ret i32 0
}