#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 *, float *, float *);
int main() {
  float a, b, c, max;
  scanf("%f %f %f", &a, &b, &c);
  max = a;
  if (b > max) {
    max = b;
  }
  if (c > max) {
    max = c;
  }
  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
lea    -0xc(%rbp),%rdx
lea    -0x10(%rbp),%rcx
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0xc(%rbp),%xmm0
ucomiss -0x14(%rbp),%xmm0
jbe    116a <main+0x4a>
movss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x10(%rbp),%xmm0
ucomiss -0x14(%rbp),%xmm0
jbe    1183 <main+0x63>
movss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x14(%rbp)
movss  -0x14(%rbp),%xmm0
lea    0xe7a(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x18,%rsp
lea    0xed5(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
call   1040 <scanf@plt>
movss  0x10(%rsp),%xmm1
maxss  0x14(%rsp),%xmm1
movss  0xc(%rsp),%xmm0
maxss  %xmm1,%xmm0
lea    0xead(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [9 x i8] c"%f %f %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 ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), float* %2, float* %3, float* %4)
%7 = load float, float* %2
store float %7, float* %5
%8 = load float, float* %3
%9 = load float, float* %5
%10 = fcmp ogt float %8, %9
br i1 %10, label %11, label %13
11: ; preds = %0
%12 = load float, float* %3
store float %12, float* %5
br label %13
13: ; preds = %11, %0
%14 = load float, float* %4
%15 = load float, float* %5
%16 = fcmp ogt float %14, %15
br i1 %16, label %17, label %19
17: ; preds = %13
%18 = load float, float* %4
store float %18, float* %5
br label %19
19: ; preds = %17, %13
%20 = load float, float* %5
%21 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float %20)
%22 = load i32, i32* %1
ret i32 %22
}

LLVM IR (-O2):
@.str = [9 x i8] c"%f %f %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 ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), float* %1, float* %2, float* %3)
%8 = load float, float* %1
%9 = load float, float* %2
%10 = fcmp ogt float %9, %8
%11 = select i1 %10, float %9, float %8
%12 = load float, float* %3
%13 = fcmp ogt float %12, %11
%14 = select i1 %13, float %12, float %11
%15 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), float %14)
ret i32 0
}