#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*/ increment(int /*<<< orphan*/);
int /*<<< orphan*/ malloc(int);
int main() {
  for (int i = 0; i < 20; ++i) {
    increment(malloc(sizeof(int)));
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
cmpl   $0x14,-0x8(%rbp)
jge    115f <main+0x3f>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1136 <main+0x16>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
mov    $0x4,%edi
call   1040 <malloc@plt>
mov    %eax,%edi
call   1030 <increment@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
br label %3
3: ; preds = %9, %0
%4 = load i32, i32* %2
%5 = icmp slt i32 %4, 20
br i1 %5, label %6, label %12
6: ; preds = %3
%7 = call i32 @malloc(i32 4)
%8 = call i32 @increment(i32 %7)
br label %9
9: ; preds = %6
%10 = load i32, i32* %2
%11 = add nsw i32 %10, 1
store i32 %11, i32* %2
br label %3
12: ; preds = %3
%13 = load i32, i32* %1
ret i32 %13
}

LLVM IR (-O2):
define i32 @main() {
%1 = tail call i32 @malloc(i32 4)
%2 = tail call i32 @increment(i32 %1)
%3 = tail call i32 @malloc(i32 4)
%4 = tail call i32 @increment(i32 %3)
%5 = tail call i32 @malloc(i32 4)
%6 = tail call i32 @increment(i32 %5)
%7 = tail call i32 @malloc(i32 4)
%8 = tail call i32 @increment(i32 %7)
%9 = tail call i32 @malloc(i32 4)
%10 = tail call i32 @increment(i32 %9)
%11 = tail call i32 @malloc(i32 4)
%12 = tail call i32 @increment(i32 %11)
%13 = tail call i32 @malloc(i32 4)
%14 = tail call i32 @increment(i32 %13)
%15 = tail call i32 @malloc(i32 4)
%16 = tail call i32 @increment(i32 %15)
%17 = tail call i32 @malloc(i32 4)
%18 = tail call i32 @increment(i32 %17)
%19 = tail call i32 @malloc(i32 4)
%20 = tail call i32 @increment(i32 %19)
%21 = tail call i32 @malloc(i32 4)
%22 = tail call i32 @increment(i32 %21)
%23 = tail call i32 @malloc(i32 4)
%24 = tail call i32 @increment(i32 %23)
%25 = tail call i32 @malloc(i32 4)
%26 = tail call i32 @increment(i32 %25)
%27 = tail call i32 @malloc(i32 4)
%28 = tail call i32 @increment(i32 %27)
%29 = tail call i32 @malloc(i32 4)
%30 = tail call i32 @increment(i32 %29)
%31 = tail call i32 @malloc(i32 4)
%32 = tail call i32 @increment(i32 %31)
%33 = tail call i32 @malloc(i32 4)
%34 = tail call i32 @increment(i32 %33)
%35 = tail call i32 @malloc(i32 4)
%36 = tail call i32 @increment(i32 %35)
%37 = tail call i32 @malloc(i32 4)
%38 = tail call i32 @increment(i32 %37)
%39 = tail call i32 @malloc(i32 4)
%40 = tail call i32 @increment(i32 %39)
ret i32 0
}