#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 *, int *);
int main(int argc, char *argv[]) {
  int i, j, n;
  printf(" Number of lines");
  scanf("%d", &n);
  for (i = 1; i <= n; i++) {
    for (j = 1; j <= i; j++)
      printf("* ");
    printf("\n");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec3(%rip),%rdi
call   1030 <printf@plt>
lea    0xec8(%rip),%rdi
lea    -0x1c(%rbp),%rsi
call   1040 <scanf@plt>
movl   $0x1,-0x14(%rbp)
mov    -0x14(%rbp),%eax
cmp    -0x1c(%rbp),%eax
jg     11ac <main+0x8c>
movl   $0x1,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jg     1192 <main+0x72>
lea    0xe95(%rip),%rdi
call   1030 <printf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    116c <main+0x4c>
lea    0xe7e(%rip),%rdi
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    1159 <main+0x39>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
sub    $0x10,%rsp
lea    0xec1(%rip),%rdi
call   1040 <printf@plt>
lea    0xec6(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
cmpl   $0x0,0xc(%rsp)
jle    11a5 <main+0x75>
mov    $0x1,%r14d
lea    0xeab(%rip),%rbx
nopl   0x0(%rax)
mov    %r14d,%ebp
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
mov    %rbx,%rdi
call   1040 <printf@plt>
add    $0xffffffff,%ebp
jne    1180 <main+0x50>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0x1(%r14),%eax
cmp    0xc(%rsp),%r14d
mov    %eax,%r14d
jl     1170 <main+0x40>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r14
pop    %rbp
ret

LLVM IR (-O0):
@.str = [17 x i8] c" Number of lines\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [3 x i8] c"* \00"
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
%8 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%9 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 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), i32* %8)
store i32 1, i32* %6
br label %11
11: ; preds = %27, %2
%12 = load i32, i32* %6
%13 = load i32, i32* %8
%14 = icmp sle i32 %12, %13
br i1 %14, label %15, label %30
15: ; preds = %11
store i32 1, i32* %7
br label %16
16: ; preds = %22, %15
%17 = load i32, i32* %7
%18 = load i32, i32* %6
%19 = icmp sle i32 %17, %18
br i1 %19, label %20, label %25
20: ; preds = %16
%21 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %22
22: ; preds = %20
%23 = load i32, i32* %7
%24 = add nsw i32 %23, 1
store i32 %24, i32* %7
br label %16
25: ; preds = %16
%26 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %27
27: ; preds = %25
%28 = load i32, i32* %6
%29 = add nsw i32 %28, 1
store i32 %29, i32* %6
br label %11
30: ; preds = %11
ret i32 0
}

LLVM IR (-O2):
@.str = [17 x i8] c" Number of lines\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [3 x i8] c"* \00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = bitcast i32* %3 to i8*
%5 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 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), i32* %3)
%7 = load i32, i32* %3
%8 = icmp slt i32 %7, 1
br i1 %8, label %23, label %9
9: ; preds = %2, %17
%10 = phi i32 [ %22, %17 ], [ 2, %2 ]
%11 = phi i32 [ %19, %17 ], [ 1, %2 ]
br label %12
12: ; preds = %9, %12
%13 = phi i32 [ 1, %9 ], [ %15, %12 ]
%14 = call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%15 = add nuw i32 %13, 1
%16 = icmp eq i32 %15, %10
br i1 %16, label %17, label %12
17: ; preds = %12
%18 = call i32 @putchar(i32 10)
%19 = add nuw nsw i32 %11, 1
%20 = load i32, i32* %3
%21 = icmp slt i32 %11, %20
%22 = add nuw i32 %10, 1
br i1 %21, label %9, label %23
23: ; preds = %17, %2
ret i32 0
}