#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*/ sprintf(char *, char *, unsigned char);
char *pt(unsigned char *md, unsigned int len) {
  unsigned int i;
  static char buf[80];
  for (i = 0; i < len; i++)
    sprintf(&(buf[i * 2]), "%02x", md[i]);
  return buf;
}


x86 assembly (clang, -O0):
<pt>:
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
jae    1169 <pt+0x59>
mov    -0x10(%rbp),%eax
shl    $0x1,%eax
mov    %eax,%eax
lea    0x2eff(%rip),%rdi
add    %rax,%rdi
mov    -0x8(%rbp),%rax
mov    -0x10(%rbp),%ecx
lea    0xeae(%rip),%rsi
movzbl (%rax,%rcx,1),%edx
call   1030 <sprintf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1126 <pt+0x16>
lea    0x2ed0(%rip),%rax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<pt>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
test   %esi,%esi
je     1162 <pt+0x52>
mov    %rdi,%r12
mov    %esi,%r15d
add    %r15,%r15
xor    %ebx,%ebx
lea    0x2f11(%rip),%r13
lea    0xeca(%rip),%r14
cs nopw 0x0(%rax,%rax,1)
mov    %ebx,%edi
and    $0xfffffffe,%edi
add    %r13,%rdi
movzbl (%r12),%edx
mov    %r14,%rsi
call   1030 <sprintf@plt>
add    $0x2,%rbx
add    $0x1,%r12
cmp    %rbx,%r15
jne    1140 <pt+0x30>
lea    0x2ed7(%rip),%rax
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@pt.buf = internal global [80 x i8] zeroinitializer
@.str = [5 x i8] c"%02x\00"
define i8* @pt(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 = %21, %2
%7 = load i32, i32* %5
%8 = load i32, i32* %4
%9 = icmp ult i32 %7, %8
br i1 %9, label %10, label %24
10: ; preds = %6
%11 = load i32, i32* %5
%12 = mul i32 %11, 2
%13 = zext i32 %12 to i64
%14 = getelementptr inbounds [80 x i8], [80 x i8]* @pt.buf, i64 0, i64 %13
%15 = load i8*, i8** %3
%16 = load i32, i32* %5
%17 = zext i32 %16 to i64
%18 = getelementptr inbounds i8, i8* %15, i64 %17
%19 = load i8, i8* %18
%20 = call i32 @sprintf(i8* %14, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8 zeroext %19)
br label %21
21: ; preds = %10
%22 = load i32, i32* %5
%23 = add i32 %22, 1
store i32 %23, i32* %5
br label %6
24: ; preds = %6
ret i8* getelementptr inbounds ([80 x i8], [80 x i8]* @pt.buf, i64 0, i64 0)
}

LLVM IR (-O2):
@pt.buf = internal global [80 x i8] zeroinitializer
@.str = [5 x i8] c"%02x\00"
define i8* @pt(i8* nocapture %0, i32 %1) {
%3 = icmp eq i32 %1, 0
br i1 %3, label %16, label %4
4: ; preds = %2
%5 = zext i32 %1 to i64
br label %6
6: ; preds = %4, %6
%7 = phi i64 [ 0, %4 ], [ %14, %6 ]
%8 = shl nuw i64 %7, 1
%9 = and i64 %8, 4294967294
%10 = getelementptr inbounds [80 x i8], [80 x i8]* @pt.buf, i64 0, i64 %9
%11 = getelementptr inbounds i8, i8* %0, i64 %7
%12 = load i8, i8* %11
%13 = tail call i32 @sprintf(i8* %10, i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i8 zeroext %12)
%14 = add nuw nsw i64 %7, 1
%15 = icmp eq i64 %14, %5
br i1 %15, label %16, label %6
16: ; preds = %6, %2
ret i8* getelementptr inbounds ([80 x i8], [80 x i8]* @pt.buf, i64 0, i64 0)
}