#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 */
typedef int /*<<< orphan*/ FILE;

/* Variables and functions */
int /*<<< orphan*/ fflush(int /*<<< orphan*/ *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/ *, char *, ...);
void hexwrite(FILE *fd, char *buf, int n) {
  int i;
  fprintf(fd, "Got:\n");
  for (i = 0; i < n; i++)
    fprintf(fd, " %02X", buf[i]);
  fprintf(fd, "\n");
  fflush(fd);
}


x86 assembly (clang, -O0):
<hexwrite>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %edx,-0x14(%rbp)
mov    -0x8(%rbp),%rdi
lea    0xec2(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    1184 <hexwrite+0x64>
mov    -0x8(%rbp),%rdi
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
movsbl (%rax,%rcx,1),%edx
lea    0xe97(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    114c <hexwrite+0x2c>
mov    -0x8(%rbp),%rdi
lea    0xe75(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    -0x8(%rbp),%rdi
call   1040 <fflush@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<hexwrite>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %edx,%ebp
mov    %rsi,%r14
mov    %rdi,%r12
lea    0xea9(%rip),%rdi
mov    $0x5,%esi
mov    $0x1,%edx
mov    %r12,%rcx
call   1060 <fwrite@plt>
test   %ebp,%ebp
jle    119b <hexwrite+0x5b>
mov    %ebp,%ebp
lea    0xe90(%rip),%r15
xor    %ebx,%ebx
nopl   0x0(%rax,%rax,1)
movsbl (%r14,%rbx,1),%edx
mov    %r12,%rdi
mov    %r15,%rsi
xor    %eax,%eax
call   1040 <fprintf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1180 <hexwrite+0x40>
mov    $0xa,%edi
mov    %r12,%rsi
call   1030 <fputc@plt>
mov    %r12,%rdi
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1050 <fflush@plt>

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

LLVM IR (-O2):
@.str = [6 x i8] c"Got:\0A\00"
@.str.1 = [6 x i8] c" %02X\00"
define void @hexwrite(i32* nocapture %0, i8* nocapture %1, i32 %2) {
%4 = tail call i64 @fwrite(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i64 5, i64 1, i32* %0)
%5 = icmp sgt i32 %2, 0
br i1 %5, label %6, label %16
6: ; preds = %3
%7 = zext i32 %2 to i64
br label %8
8: ; preds = %6, %8
%9 = phi i64 [ 0, %6 ], [ %14, %8 ]
%10 = getelementptr inbounds i8, i8* %1, i64 %9
%11 = load i8, i8* %10
%12 = sext i8 %11 to i32
%13 = tail call i32 (i32*, i8*, ...) @fprintf(i32* %0, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32 %12)
%14 = add nuw nsw i64 %9, 1
%15 = icmp eq i64 %14, %7
br i1 %15, label %16, label %8
16: ; preds = %8, %3
%17 = tail call i32 @fputc(i32 10, i32* %0)
%18 = tail call i32 @fflush(i32* %0)
ret void
}