#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*/ doit();
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *, int);
int main(int argc, char *argv[]) {
  int j;
  for (j = 0; j < 10; j++) {
    doit();
    printf("I allocated the %3d buffer\n", j);
  }
  exit(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)
movl   $0x0,-0x14(%rbp)
cmpl   $0xa,-0x14(%rbp)
jge    117b <main+0x4b>
mov    $0x0,%al
call   1040 <doit@plt>
mov    -0x14(%rbp),%esi
lea    0xe98(%rip),%rdi
call   1030 <printf@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    114d <main+0x1d>
xor    %edi,%edi
call   1050 <exit@plt>

x86 assembly (clang, -O2):
<main>:
push   %rbx
xor    %eax,%eax
call   1040 <doit@plt>
lea    0xec1(%rip),%rbx
mov    %rbx,%rdi
xor    %esi,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x5,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x6,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x7,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x8,%esi
call   1030 <printf@plt>
xor    %eax,%eax
call   1040 <doit@plt>
mov    %rbx,%rdi
mov    $0x9,%esi
call   1030 <printf@plt>
xor    %edi,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [28 x i8] c"I allocated the %3d buffer\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
store i32 0, i32* %6
br label %7
7: ; preds = %14, %2
%8 = load i32, i32* %6
%9 = icmp slt i32 %8, 10
br i1 %9, label %10, label %17
10: ; preds = %7
%11 = call i32 (...) @doit()
%12 = load i32, i32* %6
%13 = call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 %12)
br label %14
14: ; preds = %10
%15 = load i32, i32* %6
%16 = add nsw i32 %15, 1
store i32 %16, i32* %6
br label %7
17: ; preds = %7
%18 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@.str = [28 x i8] c"I allocated the %3d buffer\0A\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = tail call i32 (...) @doit()
%4 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 0)
%5 = tail call i32 (...) @doit()
%6 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 1)
%7 = tail call i32 (...) @doit()
%8 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 2)
%9 = tail call i32 (...) @doit()
%10 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 3)
%11 = tail call i32 (...) @doit()
%12 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 4)
%13 = tail call i32 (...) @doit()
%14 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 5)
%15 = tail call i32 (...) @doit()
%16 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 6)
%17 = tail call i32 (...) @doit()
%18 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 7)
%19 = tail call i32 (...) @doit()
%20 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 8)
%21 = tail call i32 (...) @doit()
%22 = tail call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str, i64 0, i64 0), i32 9)
%23 = tail call i32 @exit(i32 0)
unreachable
}