#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 *, char);
void print_chars(char *chars) {
  for (int i = 0; i < 10; i++) {
    printf("%c", chars[i]);
  }
}


x86 assembly (clang, -O0):
<print_chars>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0xa,-0xc(%rbp)
jge    1153 <print_chars+0x43>
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
lea    0xec4(%rip),%rdi
movsbl (%rax,%rcx,1),%esi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1123 <print_chars+0x13>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_chars>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
movsbl (%rdi),%esi
lea    0xedf(%rip),%r14
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x1(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x2(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x3(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x4(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x5(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x6(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x7(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x8(%rbx),%esi
mov    %r14,%rdi
call   1030 <printf@plt>
movsbl 0x9(%rbx),%esi
mov    %r14,%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1030 <printf@plt>

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

LLVM IR (-O2):
@.str = [3 x i8] c"%c\00"
define void @print_chars(i8* nocapture %0) {
%2 = load i8, i8* %0
%3 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %2)
%4 = getelementptr inbounds i8, i8* %0, i64 1
%5 = load i8, i8* %4
%6 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %5)
%7 = getelementptr inbounds i8, i8* %0, i64 2
%8 = load i8, i8* %7
%9 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %8)
%10 = getelementptr inbounds i8, i8* %0, i64 3
%11 = load i8, i8* %10
%12 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %11)
%13 = getelementptr inbounds i8, i8* %0, i64 4
%14 = load i8, i8* %13
%15 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %14)
%16 = getelementptr inbounds i8, i8* %0, i64 5
%17 = load i8, i8* %16
%18 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %17)
%19 = getelementptr inbounds i8, i8* %0, i64 6
%20 = load i8, i8* %19
%21 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %20)
%22 = getelementptr inbounds i8, i8* %0, i64 7
%23 = load i8, i8* %22
%24 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %23)
%25 = getelementptr inbounds i8, i8* %0, i64 8
%26 = load i8, i8* %25
%27 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %26)
%28 = getelementptr inbounds i8, i8* %0, i64 9
%29 = load i8, i8* %28
%30 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8 signext %29)
ret void
}