#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 callback(char *file, void *data) {
  int *p = (int *)data;
  int i = 0;
  for (i = 0; i < *p; i++)
    printf("    ");
  printf("[%s]\n", file);
  return 0;
}


x86 assembly (clang, -O0):
<callback>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    -0x10(%rbp),%rax
mov    %rax,-0x18(%rbp)
movl   $0x0,-0x1c(%rbp)
movl   $0x0,-0x1c(%rbp)
mov    -0x1c(%rbp),%eax
mov    -0x18(%rbp),%rcx
cmp    (%rcx),%eax
jge    1161 <callback+0x51>
lea    0xeb4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1136 <callback+0x26>
mov    -0x8(%rbp),%rsi
lea    0xe99(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<callback>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %rdi,%r14
cmpl   $0x0,(%rsi)
jle    1141 <callback+0x31>
mov    %rsi,%rbx
lea    0xed7(%rip),%r15
xor    %ebp,%ebp
nopl   0x0(%rax,%rax,1)
mov    %r15,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
add    $0x1,%ebp
cmp    (%rbx),%ebp
jl     1130 <callback+0x20>
lea    0xebd(%rip),%rdi
mov    %r14,%rsi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [5 x i8] c" \00"
@.str.1 = [6 x i8] c"[%s]\0A\00"
define i32 @callback(i8* %0, i8* %1) {
%3 = alloca i8*
%4 = alloca i8*
%5 = alloca i32*
%6 = alloca i32
store i8* %0, i8** %3
store i8* %1, i8** %4
%7 = load i8*, i8** %4
%8 = bitcast i8* %7 to i32*
store i32* %8, i32** %5
store i32 0, i32* %6
store i32 0, i32* %6
br label %9
9: ; preds = %16, %2
%10 = load i32, i32* %6
%11 = load i32*, i32** %5
%12 = load i32, i32* %11
%13 = icmp slt i32 %10, %12
br i1 %13, label %14, label %19
14: ; preds = %9
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
br label %16
16: ; preds = %14
%17 = load i32, i32* %6
%18 = add nsw i32 %17, 1
store i32 %18, i32* %6
br label %9
19: ; preds = %9
%20 = load i8*, i8** %3
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %20)
ret i32 0
}

LLVM IR (-O2):
@.str = [5 x i8] c" \00"
@.str.1 = [6 x i8] c"[%s]\0A\00"
define i32 @callback(i8* %0, i8* nocapture %1) {
%3 = bitcast i8* %1 to i32*
%4 = load i32, i32* %3
%5 = icmp sgt i32 %4, 0
br i1 %5, label %6, label %12
6: ; preds = %2, %6
%7 = phi i32 [ %9, %6 ], [ 0, %2 ]
%8 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%9 = add nuw nsw i32 %7, 1
%10 = load i32, i32* %3
%11 = icmp slt i32 %9, %10
br i1 %11, label %6, label %12
12: ; preds = %6, %2
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %0)
ret i32 0
}