#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*/ write(int, char *, int);
int my_puterror(char *str) {
  int i;
  if (str == NULL)
    return (1);
  i = 0;
  while (str[i] != '\0') {
    write(2, &str[i], 1);
    i = i + 1;
  }
  return (0);
}


x86 assembly (clang, -O0):
<my_puterror>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
cmpq   $0x0,-0x10(%rbp)
jne    1133 <my_puterror+0x23>
movl   $0x1,-0x4(%rbp)
jmp    117e <my_puterror+0x6e>
movl   $0x0,-0x14(%rbp)
mov    -0x10(%rbp),%rax
movslq -0x14(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
cmp    $0x0,%eax
je     1177 <my_puterror+0x67>
mov    -0x10(%rbp),%rsi
movslq -0x14(%rbp),%rax
add    %rax,%rsi
mov    $0x2,%edi
mov    $0x1,%edx
call   1030 <write@plt>
mov    -0x14(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x14(%rbp)
jmp    113a <my_puterror+0x2a>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<my_puterror>:
push   %rbp
push   %rbx
push   %rax
test   %rdi,%rdi
je     114e <my_puterror+0x3e>
mov    %rdi,%rbx
xor    %ebp,%ebp
cmpb   $0x0,(%rdi)
je     1153 <my_puterror+0x43>
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax)
mov    $0x2,%edi
mov    %rbx,%rsi
mov    $0x1,%edx
call   1030 <write@plt>
cmpb   $0x0,0x1(%rbx)
lea    0x1(%rbx),%rbx
jne    1130 <my_puterror+0x20>
jmp    1153 <my_puterror+0x43>
mov    $0x1,%ebp
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
define i32 @my_puterror(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i32
store i8* %0, i8** %3
%5 = load i8*, i8** %3
%6 = icmp eq i8* %5, null
br i1 %6, label %7, label %8
7: ; preds = %1
store i32 1, i32* %2
br label %26
8: ; preds = %1
store i32 0, i32* %4
br label %9
9: ; preds = %17, %8
%10 = load i8*, i8** %3
%11 = load i32, i32* %4
%12 = sext i32 %11 to i64
%13 = getelementptr inbounds i8, i8* %10, i64 %12
%14 = load i8, i8* %13
%15 = sext i8 %14 to i32
%16 = icmp ne i32 %15, 0
br i1 %16, label %17, label %25
17: ; preds = %9
%18 = load i8*, i8** %3
%19 = load i32, i32* %4
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i8, i8* %18, i64 %20
%22 = call i32 @write(i32 2, i8* %21, i32 1)
%23 = load i32, i32* %4
%24 = add nsw i32 %23, 1
store i32 %24, i32* %4
br label %9
25: ; preds = %9
store i32 0, i32* %2
br label %26
26: ; preds = %25, %7
%27 = load i32, i32* %2
ret i32 %27
}

LLVM IR (-O2):
define i32 @my_puterror(i8* %0) {
%2 = icmp eq i8* %0, null
br i1 %2, label %14, label %3
3: ; preds = %1
%4 = load i8, i8* %0
%5 = icmp eq i8 %4, 0
br i1 %5, label %14, label %6
6: ; preds = %3, %6
%7 = phi i64 [ %10, %6 ], [ 0, %3 ]
%8 = phi i8* [ %11, %6 ], [ %0, %3 ]
%9 = tail call i32 @write(i32 2, i8* %8, i32 1)
%10 = add nuw i64 %7, 1
%11 = getelementptr inbounds i8, i8* %0, i64 %10
%12 = load i8, i8* %11
%13 = icmp eq i8 %12, 0
br i1 %13, label %14, label %6
14: ; preds = %6, %3, %1
%15 = phi i32 [ 1, %1 ], [ 0, %3 ], [ 0, %6 ]
ret i32 %15
}