#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 *, ...);
void print_buffer(const char *s, size_t n) {
  size_t i;
  printf("{");
  for (i = 0; i < n; ++i) {
    printf("0x%02X (%c)", s[i], s[i]);
    if (i != n)
      printf(", ");
  }
}


x86 assembly (clang, -O0):
<print_buffer>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movq   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%rax
cmp    -0x10(%rbp),%rax
jae    119c <print_buffer+0x8c>
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%rcx
movsbl (%rax,%rcx,1),%esi
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%rcx
movsbl (%rax,%rcx,1),%edx
lea    0xe9f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%rax
cmp    -0x10(%rbp),%rax
je     1186 <print_buffer+0x76>
lea    0xe8f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    118b <print_buffer+0x7b>
mov    -0x18(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x18(%rbp)
jmp    1136 <print_buffer+0x26>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_buffer>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
mov    %rsi,%r13
mov    %rdi,%r14
mov    $0x7b,%edi
call   1030 <putchar@plt>
test   %r13,%r13
je     1174 <print_buffer+0x54>
lea    0xebb(%rip),%r15
lea    0xec0(%rip),%r12
xor    %ebx,%ebx
xchg   %ax,%ax
movsbl (%r14,%rbx,1),%edx
mov    %r15,%rdi
mov    %edx,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %r12,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r13
jne    1150 <print_buffer+0x30>
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [2 x i8] c"{\00"
@.str.1 = [12 x i8] c"0x%02X (%c)\00"
@.str.2 = [3 x i8] c", \00"
define void @print_buffer(i8* %0, i64 %1) {
%3 = alloca i8*
%4 = alloca i64
%5 = alloca i64
store i8* %0, i8** %3
store i64 %1, i64* %4
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i64 0, i64* %5
br label %7
7: ; preds = %29, %2
%8 = load i64, i64* %5
%9 = load i64, i64* %4
%10 = icmp ult i64 %8, %9
br i1 %10, label %11, label %32
11: ; preds = %7
%12 = load i8*, i8** %3
%13 = load i64, i64* %5
%14 = getelementptr inbounds i8, i8* %12, i64 %13
%15 = load i8, i8* %14
%16 = sext i8 %15 to i32
%17 = load i8*, i8** %3
%18 = load i64, i64* %5
%19 = getelementptr inbounds i8, i8* %17, i64 %18
%20 = load i8, i8* %19
%21 = sext i8 %20 to i32
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), i32 %16, i32 %21)
%23 = load i64, i64* %5
%24 = load i64, i64* %4
%25 = icmp ne i64 %23, %24
br i1 %25, label %26, label %28
26: ; preds = %11
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %28
28: ; preds = %26, %11
br label %29
29: ; preds = %28
%30 = load i64, i64* %5
%31 = add i64 %30, 1
store i64 %31, i64* %5
br label %7
32: ; preds = %7
ret void
}

LLVM IR (-O2):
@.str.1 = [12 x i8] c"0x%02X (%c)\00"
@.str.2 = [3 x i8] c", \00"
define void @print_buffer(i8* nocapture %0, i64 %1) {
%3 = tail call i32 @putchar(i32 123)
%4 = icmp eq i64 %1, 0
br i1 %4, label %14, label %5
5: ; preds = %2, %5
%6 = phi i64 [ %12, %5 ], [ 0, %2 ]
%7 = getelementptr inbounds i8, i8* %0, i64 %6
%8 = load i8, i8* %7
%9 = sext i8 %8 to i32
%10 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0), i32 %9, i32 %9)
%11 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%12 = add nuw i64 %6, 1
%13 = icmp eq i64 %12, %1
br i1 %13, label %14, label %5
14: ; preds = %5, %2
ret void
}