#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*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ insert_data(char *, char, unsigned int);
int /*<<< orphan*/ load_base_trd(char *);
unsigned int load_block(char *);
int /*<<< orphan*/ stderr;
int /*<<< orphan*/ write_new_trd(char *);
int main(int argc, char *argv[]) {
  unsigned int len;
  if (argc != 4) {
    fprintf(stderr, "%s image name data.\n", argv[0]);
    exit(1);
  }
  load_base_trd(argv[1]);
  len = load_block(argv[3]);
  insert_data(argv[2], 'C', len);
  write_new_trd(argv[1]);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x4,-0x8(%rbp)
je     11a6 <main+0x46>
mov    0x2e59(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xe69(%rip),%rsi
call   1060 <fprintf@plt>
mov    $0x1,%edi
call   1080 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1030 <load_base_trd@plt>
mov    -0x10(%rbp),%rax
mov    0x18(%rax),%rdi
call   1070 <load_block@plt>
mov    %eax,-0x14(%rbp)
mov    -0x10(%rbp),%rax
mov    0x10(%rax),%rdi
mov    -0x14(%rbp),%edx
mov    $0x43,%esi
call   1040 <insert_data@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1050 <write_new_trd@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    %rsi,%rbx
cmp    $0x4,%edi
jne    1198 <main+0x38>
mov    0x8(%rbx),%rdi
call   1030 <load_base_trd@plt>
mov    0x18(%rbx),%rdi
call   1070 <load_block@plt>
mov    0x10(%rbx),%rdi
mov    $0x43,%esi
mov    %eax,%edx
call   1040 <insert_data@plt>
mov    0x8(%rbx),%rdi
call   1050 <write_new_trd@plt>
xor    %eax,%eax
pop    %rbx
ret
mov    0x2e41(%rip),%rax
mov    (%rax),%edi
mov    (%rbx),%rdx
lea    0xe55(%rip),%rsi
call   1060 <fprintf@plt>
mov    $0x1,%edi
call   1080 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [21 x i8] c"%s image name data.\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp ne i32 %7, 4
br i1 %8, label %9, label %16
9: ; preds = %2
%10 = load i32, i32* @stderr
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 0
%13 = load i8*, i8** %12
%14 = call i32 @fprintf(i32 %10, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0), i8* %13)
%15 = call i32 @exit(i32 1)
unreachable
16: ; preds = %2
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 1
%19 = load i8*, i8** %18
%20 = call i32 @load_base_trd(i8* %19)
%21 = load i8**, i8*** %5
%22 = getelementptr inbounds i8*, i8** %21, i64 3
%23 = load i8*, i8** %22
%24 = call i32 @load_block(i8* %23)
store i32 %24, i32* %6
%25 = load i8**, i8*** %5
%26 = getelementptr inbounds i8*, i8** %25, i64 2
%27 = load i8*, i8** %26
%28 = load i32, i32* %6
%29 = call i32 @insert_data(i8* %27, i8 signext 67, i32 %28)
%30 = load i8**, i8*** %5
%31 = getelementptr inbounds i8*, i8** %30, i64 1
%32 = load i8*, i8** %31
%33 = call i32 @write_new_trd(i8* %32)
ret i32 0
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [21 x i8] c"%s image name data.\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 4
br i1 %3, label %9, label %4
4: ; preds = %2
%5 = load i32, i32* @stderr
%6 = load i8*, i8** %1
%7 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0), i8* %6)
%8 = tail call i32 @exit(i32 1)
unreachable
9: ; preds = %2
%10 = getelementptr inbounds i8*, i8** %1, i64 1
%11 = load i8*, i8** %10
%12 = tail call i32 @load_base_trd(i8* %11)
%13 = getelementptr inbounds i8*, i8** %1, i64 3
%14 = load i8*, i8** %13
%15 = tail call i32 @load_block(i8* %14)
%16 = getelementptr inbounds i8*, i8** %1, i64 2
%17 = load i8*, i8** %16
%18 = tail call i32 @insert_data(i8* %17, i8 signext 67, i32 %15)
%19 = load i8*, i8** %10
%20 = tail call i32 @write_new_trd(i8* %19)
ret i32 0
}