#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 pstate3(const unsigned char *st, int len) {
  int i;
  for (i = 0; i < len; i++) {
    printf("%01x", st[i] & 0xf);
    if (((i % 16) == (16 - 1)) && (i + 1 != len))
      printf("\n");
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<pstate3>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1193 <pstate3+0x83>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movzbl (%rax,%rcx,1),%esi
and    $0xf,%esi
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
mov    $0x10,%ecx
cltd
idiv   %ecx
cmp    $0xf,%edx
jne    1180 <pstate3+0x70>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
cmp    -0xc(%rbp),%eax
je     1180 <pstate3+0x70>
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1185 <pstate3+0x75>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1126 <pstate3+0x16>
lea    0xe6b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<pstate3>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
push   %rax
test   %esi,%esi
jle    1187 <pstate3+0x67>
mov    %rdi,%r15
mov    %esi,%r13d
lea    -0x1(%r13),%r12
lea    0xec0(%rip),%r14
xor    %ebp,%ebp
jmp    1155 <pstate3+0x35>
cs nopw 0x0(%rax,%rax,1)
xchg   %ax,%ax
cmp    %rbp,%r13
je     1187 <pstate3+0x67>
mov    %rbp,%rbx
movzbl (%r15,%rbp,1),%esi
and    $0xf,%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebx,%eax
not    %eax
add    $0x1,%rbp
test   $0xf,%al
jne    1150 <pstate3+0x30>
cmp    %rbx,%r12
je     1150 <pstate3+0x30>
mov    $0xa,%edi
call   1030 <putchar@plt>
jmp    1150 <pstate3+0x30>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [5 x i8] c"%01x\00"
@.str.1 = [2 x i8] c"\0A\00"
define void @pstate3(i8* %0, i32 %1) {
%3 = alloca i8*
%4 = alloca i32
%5 = alloca i32
store i8* %0, i8** %3
store i32 %1, i32* %4
store i32 0, i32* %5
br label %6
6: ; preds = %30, %2
%7 = load i32, i32* %5
%8 = load i32, i32* %4
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %33
10: ; preds = %6
%11 = load i8*, i8** %3
%12 = load i32, i32* %5
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds i8, i8* %11, i64 %13
%15 = load i8, i8* %14
%16 = zext i8 %15 to i32
%17 = and i32 %16, 15
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %17)
%19 = load i32, i32* %5
%20 = srem i32 %19, 16
%21 = icmp eq i32 %20, 15
br i1 %21, label %22, label %29
22: ; preds = %10
%23 = load i32, i32* %5
%24 = add nsw i32 %23, 1
%25 = load i32, i32* %4
%26 = icmp ne i32 %24, %25
br i1 %26, label %27, label %29
27: ; preds = %22
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
br label %29
29: ; preds = %27, %22, %10
br label %30
30: ; preds = %29
%31 = load i32, i32* %5
%32 = add nsw i32 %31, 1
store i32 %32, i32* %5
br label %6
33: ; preds = %6
%34 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [5 x i8] c"%01x\00"
define void @pstate3(i8* nocapture %0, i32 %1) {
%3 = icmp sgt i32 %1, 0
br i1 %3, label %4, label %22
4: ; preds = %2
%5 = zext i32 %1 to i64
br label %6
6: ; preds = %4, %20
%7 = phi i64 [ 0, %4 ], [ %15, %20 ]
%8 = getelementptr inbounds i8, i8* %0, i64 %7
%9 = load i8, i8* %8
%10 = and i8 %9, 15
%11 = zext i8 %10 to i32
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %11)
%13 = and i64 %7, 15
%14 = icmp ne i64 %13, 15
%15 = add nuw nsw i64 %7, 1
%16 = icmp eq i64 %15, %5
%17 = select i1 %14, i1 true, i1 %16
br i1 %17, label %20, label %18
18: ; preds = %6
%19 = tail call i32 @putchar(i32 10)
br label %20
20: ; preds = %6, %18
%21 = icmp eq i64 %15, %5
br i1 %21, label %22, label %6
22: ; preds = %20, %2
%23 = tail call i32 @putchar(i32 10)
ret void
}