#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 *, double *, double *, double *, double *);
int main() {
  double a, b, c, d;
  printf("Please enter 4 numbers separated by spaces > ");
  scanf("%lf%lf%lf%lf", &a, &b, &c, &d);
  if (a < b && a < c && a < d)
    printf("%.0f is the smallest\n", a);
  else if (b < a && b < c && b < d)
    printf("%.0f is the smallest\n", b);
  else if (c < b && c < a && c < d)
    printf("%.0f is the smallest\n", c);
  else if (d < b && d < c && d < a)
    printf("%.0f is the smallest\n", d);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeea(%rip),%rdi
lea    -0x10(%rbp),%rsi
lea    -0x18(%rbp),%rdx
lea    -0x20(%rbp),%rcx
lea    -0x28(%rbp),%r8
call   1040 <scanf@plt>
movsd  -0x10(%rbp),%xmm1
movsd  -0x18(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    11ad <main+0x8d>
movsd  -0x10(%rbp),%xmm1
movsd  -0x20(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    11ad <main+0x8d>
movsd  -0x10(%rbp),%xmm1
movsd  -0x28(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    11ad <main+0x8d>
movsd  -0x10(%rbp),%xmm0
lea    0xe9a(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
jmp    12b3 <main+0x193>
movsd  -0x18(%rbp),%xmm1
movsd  -0x10(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    1201 <main+0xe1>
movsd  -0x18(%rbp),%xmm1
movsd  -0x20(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    1201 <main+0xe1>
movsd  -0x18(%rbp),%xmm1
movsd  -0x28(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    1201 <main+0xe1>
movsd  -0x18(%rbp),%xmm0
lea    0xe46(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
jmp    12ae <main+0x18e>
movsd  -0x20(%rbp),%xmm1
movsd  -0x18(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    1255 <main+0x135>
movsd  -0x20(%rbp),%xmm1
movsd  -0x10(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    1255 <main+0x135>
movsd  -0x20(%rbp),%xmm1
movsd  -0x28(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    1255 <main+0x135>
movsd  -0x20(%rbp),%xmm0
lea    0xdf2(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
jmp    12a9 <main+0x189>
movsd  -0x28(%rbp),%xmm1
movsd  -0x18(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    12a4 <main+0x184>
movsd  -0x28(%rbp),%xmm1
movsd  -0x20(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    12a4 <main+0x184>
movsd  -0x28(%rbp),%xmm1
movsd  -0x10(%rbp),%xmm0
ucomisd %xmm1,%xmm0
jbe    12a4 <main+0x184>
movsd  -0x28(%rbp),%xmm0
lea    0xd9e(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
jmp    12a9 <main+0x189>
jmp    12ae <main+0x18e>
jmp    12b3 <main+0x193>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x28,%rsp
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xef5(%rip),%rdi
lea    0x20(%rsp),%rsi
lea    0x18(%rsp),%rdx
lea    0x10(%rsp),%rcx
lea    0x8(%rsp),%r8
call   1040 <scanf@plt>
movsd  0x20(%rsp),%xmm1
movsd  0x18(%rsp),%xmm3
ucomisd %xmm1,%xmm3
movsd  0x10(%rsp),%xmm2
movsd  0x8(%rsp),%xmm0
jbe    1182 <main+0x62>
ucomisd %xmm1,%xmm2
jbe    1182 <main+0x62>
ucomisd %xmm1,%xmm0
jbe    1182 <main+0x62>
movapd %xmm1,%xmm0
jmp    11c4 <main+0xa4>
ucomisd %xmm3,%xmm1
jbe    119a <main+0x7a>
ucomisd %xmm3,%xmm2
jbe    119a <main+0x7a>
ucomisd %xmm3,%xmm0
jbe    119a <main+0x7a>
movapd %xmm3,%xmm0
jmp    11c4 <main+0xa4>
ucomisd %xmm2,%xmm3
jbe    11b2 <main+0x92>
ucomisd %xmm2,%xmm1
jbe    11b2 <main+0x92>
ucomisd %xmm2,%xmm0
jbe    11b2 <main+0x92>
movapd %xmm2,%xmm0
jmp    11c4 <main+0xa4>
ucomisd %xmm0,%xmm3
jbe    11d2 <main+0xb2>
ucomisd %xmm0,%xmm2
jbe    11d2 <main+0xb2>
ucomisd %xmm0,%xmm1
jbe    11d2 <main+0xb2>
lea    0xe70(%rip),%rdi
mov    $0x1,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x28,%rsp
ret

LLVM IR (-O0):
@.str = [46 x i8] c"Please enter 4 numbers separated by spaces > \00"
@.str.1 = [13 x i8] c"%lf%lf%lf%lf\00"
@.str.2 = [22 x i8] c"%.0f is the smallest\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca double
%3 = alloca double
%4 = alloca double
%5 = alloca double
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double* %2, double* %3, double* %4, double* %5)
%8 = load double, double* %2
%9 = load double, double* %3
%10 = fcmp olt double %8, %9
br i1 %10, label %11, label %22
11: ; preds = %0
%12 = load double, double* %2
%13 = load double, double* %4
%14 = fcmp olt double %12, %13
br i1 %14, label %15, label %22
15: ; preds = %11
%16 = load double, double* %2
%17 = load double, double* %5
%18 = fcmp olt double %16, %17
br i1 %18, label %19, label %22
19: ; preds = %15
%20 = load double, double* %2
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), double %20)
br label %70
22: ; preds = %15, %11, %0
%23 = load double, double* %3
%24 = load double, double* %2
%25 = fcmp olt double %23, %24
br i1 %25, label %26, label %37
26: ; preds = %22
%27 = load double, double* %3
%28 = load double, double* %4
%29 = fcmp olt double %27, %28
br i1 %29, label %30, label %37
30: ; preds = %26
%31 = load double, double* %3
%32 = load double, double* %5
%33 = fcmp olt double %31, %32
br i1 %33, label %34, label %37
34: ; preds = %30
%35 = load double, double* %3
%36 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), double %35)
br label %69
37: ; preds = %30, %26, %22
%38 = load double, double* %4
%39 = load double, double* %3
%40 = fcmp olt double %38, %39
br i1 %40, label %41, label %52
41: ; preds = %37
%42 = load double, double* %4
%43 = load double, double* %2
%44 = fcmp olt double %42, %43
br i1 %44, label %45, label %52
45: ; preds = %41
%46 = load double, double* %4
%47 = load double, double* %5
%48 = fcmp olt double %46, %47
br i1 %48, label %49, label %52
49: ; preds = %45
%50 = load double, double* %4
%51 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), double %50)
br label %68
52: ; preds = %45, %41, %37
%53 = load double, double* %5
%54 = load double, double* %3
%55 = fcmp olt double %53, %54
br i1 %55, label %56, label %67
56: ; preds = %52
%57 = load double, double* %5
%58 = load double, double* %4
%59 = fcmp olt double %57, %58
br i1 %59, label %60, label %67
60: ; preds = %56
%61 = load double, double* %5
%62 = load double, double* %2
%63 = fcmp olt double %61, %62
br i1 %63, label %64, label %67
64: ; preds = %60
%65 = load double, double* %5
%66 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), double %65)
br label %67
67: ; preds = %64, %60, %56, %52
br label %68
68: ; preds = %67, %49
br label %69
69: ; preds = %68, %34
br label %70
70: ; preds = %69, %19
ret i32 0
}

LLVM IR (-O2):
@.str = [46 x i8] c"Please enter 4 numbers separated by spaces > \00"
@.str.1 = [13 x i8] c"%lf%lf%lf%lf\00"
@.str.2 = [22 x i8] c"%.0f is the smallest\0A\00"
define i32 @main() {
%1 = alloca double
%2 = alloca double
%3 = alloca double
%4 = alloca double
%5 = bitcast double* %1 to i8*
%6 = bitcast double* %2 to i8*
%7 = bitcast double* %3 to i8*
%8 = bitcast double* %4 to i8*
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([46 x i8], [46 x i8]* @.str, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.1, i64 0, i64 0), double* %1, double* %2, double* %3, double* %4)
%11 = load double, double* %1
%12 = load double, double* %2
%13 = fcmp olt double %11, %12
%14 = load double, double* %3
%15 = fcmp olt double %11, %14
%16 = select i1 %13, i1 %15, i1 false
%17 = load double, double* %4
%18 = fcmp olt double %11, %17
%19 = select i1 %16, i1 %18, i1 false
br i1 %19, label %38, label %20
20: ; preds = %0
%21 = fcmp olt double %12, %11
%22 = fcmp olt double %12, %14
%23 = select i1 %21, i1 %22, i1 false
%24 = fcmp olt double %12, %17
%25 = select i1 %23, i1 %24, i1 false
br i1 %25, label %38, label %26
26: ; preds = %20
%27 = fcmp olt double %14, %12
%28 = fcmp olt double %14, %11
%29 = select i1 %27, i1 %28, i1 false
%30 = fcmp olt double %14, %17
%31 = select i1 %29, i1 %30, i1 false
br i1 %31, label %38, label %32
32: ; preds = %26
%33 = fcmp olt double %17, %12
%34 = fcmp olt double %17, %14
%35 = select i1 %33, i1 %34, i1 false
%36 = fcmp olt double %17, %11
%37 = select i1 %35, i1 %36, i1 false
br i1 %37, label %38, label %41
38: ; preds = %32, %26, %20, %0
%39 = phi double [ %11, %0 ], [ %12, %20 ], [ %14, %26 ], [ %17, %32 ]
%40 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), double %39)
br label %41
41: ; preds = %38, %32
ret i32 0
}