#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*/ less_than_zero(float, int *);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, float *);
int main() {
  int i;
  float num = 0.0;
  int a[20] = {};
  printf("input a num:");
  scanf("%f", &num);
  less_than_zero(num, a);
  printf("0.");
  for (i = 0; i < 20; i++) {
    printf("%d", a[i]);
  }
  printf("\n");
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x60,%rsp
movl   $0x0,-0x4(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0xc(%rbp)
lea    -0x60(%rbp),%rdi
xor    %esi,%esi
mov    $0x50,%edx
call   1040 <memset@plt>
lea    0xe92(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe91(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1050 <scanf@plt>
movss  -0xc(%rbp),%xmm0
lea    -0x60(%rbp),%rdi
call   1060 <less_than_zero@plt>
lea    0xe76(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x8(%rbp)
cmpl   $0x14,-0x8(%rbp)
jge    11d6 <main+0x96>
movslq -0x8(%rbp),%rax
mov    -0x60(%rbp,%rax,4),%esi
lea    0xe52(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    11a8 <main+0x68>
lea    0xe39(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x60,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x60,%rsp
movl   $0x0,0xc(%rsp)
xorps  %xmm0,%xmm0
movaps %xmm0,0x50(%rsp)
movaps %xmm0,0x40(%rsp)
movaps %xmm0,0x30(%rsp)
movaps %xmm0,0x20(%rsp)
movaps %xmm0,0x10(%rsp)
lea    0xe90(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xe8f(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
movss  0xc(%rsp),%xmm0
lea    0x10(%rsp),%rdi
call   1060 <less_than_zero@plt>
lea    0xe71(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x10(%rsp),%esi
lea    0xe62(%rip),%rbx
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x14(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x18(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x1c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x20(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x24(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x28(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x2c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x30(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x34(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x38(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x3c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x40(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x44(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x48(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x4c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x50(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x54(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x58(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x5c(%rsp),%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x60,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [13 x i8] c"input a num:\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [3 x i8] c"0.\00"
@.str.3 = [3 x i8] c"%d\00"
@.str.4 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca float
%4 = alloca [20 x i32]
store i32 0, i32* %1
store float 0.000000e+00, float* %3
%5 = bitcast [20 x i32]* %4 to i8*
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 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* %3)
%8 = load float, float* %3
%9 = getelementptr inbounds [20 x i32], [20 x i32]* %4, i64 0, i64 0
%10 = call i32 @less_than_zero(float %8, i32* %9)
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
store i32 0, i32* %2
br label %12
12: ; preds = %21, %0
%13 = load i32, i32* %2
%14 = icmp slt i32 %13, 20
br i1 %14, label %15, label %24
15: ; preds = %12
%16 = load i32, i32* %2
%17 = sext i32 %16 to i64
%18 = getelementptr inbounds [20 x i32], [20 x i32]* %4, i64 0, i64 %17
%19 = load i32, i32* %18
%20 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %19)
br label %21
21: ; preds = %15
%22 = load i32, i32* %2
%23 = add nsw i32 %22, 1
store i32 %23, i32* %2
br label %12
24: ; preds = %12
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.4, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str = [13 x i8] c"input a num:\00"
@.str.1 = [3 x i8] c"%f\00"
@.str.2 = [3 x i8] c"0.\00"
@.str.3 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca float
%2 = alloca [20 x i32]
%3 = bitcast float* %1 to i8*
store float 0.000000e+00, float* %1
%4 = bitcast [20 x i32]* %2 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), float* %1)
%7 = load float, float* %1
%8 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 0
%9 = call i32 @less_than_zero(float %7, i32* %8)
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%11 = load i32, i32* %8
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %11)
%13 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 1
%14 = load i32, i32* %13
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %14)
%16 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 2
%17 = load i32, i32* %16
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %17)
%19 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 3
%20 = load i32, i32* %19
%21 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %20)
%22 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 4
%23 = load i32, i32* %22
%24 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %23)
%25 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 5
%26 = load i32, i32* %25
%27 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %26)
%28 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 6
%29 = load i32, i32* %28
%30 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %29)
%31 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 7
%32 = load i32, i32* %31
%33 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %32)
%34 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 8
%35 = load i32, i32* %34
%36 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %35)
%37 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 9
%38 = load i32, i32* %37
%39 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %38)
%40 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 10
%41 = load i32, i32* %40
%42 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %41)
%43 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 11
%44 = load i32, i32* %43
%45 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %44)
%46 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 12
%47 = load i32, i32* %46
%48 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %47)
%49 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 13
%50 = load i32, i32* %49
%51 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %50)
%52 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 14
%53 = load i32, i32* %52
%54 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %53)
%55 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 15
%56 = load i32, i32* %55
%57 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %56)
%58 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 16
%59 = load i32, i32* %58
%60 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %59)
%61 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 17
%62 = load i32, i32* %61
%63 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %62)
%64 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 18
%65 = load i32, i32* %64
%66 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %65)
%67 = getelementptr inbounds [20 x i32], [20 x i32]* %2, i64 0, i64 19
%68 = load i32, i32* %67
%69 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.3, i64 0, i64 0), i32 %68)
%70 = call i32 @putchar(i32 10)
ret i32 0
}