// #target: macos-x64
module test;
import std;
import libc;

struct Doc { Head *head; }
struct Head { char[]* title; }

struct Summary
{
	char[]* title;
	bool ok;
}

fn void Summary.print(Summary *s, CFile out)
{
	// We don't have a native printf in C3 yet, so use libc,
	// which is not all that nice for the strings but...
	char[] title = s.title ? *s.title : "missing";
	libc::fprintf(out, "Summary({ .title = %.*s, .ok = %s})", (int)title.len, title.ptr, s.ok ? (char*)"true" : (char*)"false");
}

fn bool contains(char[] haystack, char[] needle)
{
	usz len = haystack.len;
	usz needle_len = needle.len;
	if (len < needle_len) return false;
	if (!needle_len) return true;
	len -= needle_len - 1;
	for (usz i = 0; i < len; i++)
	{
		if (libc::memcmp(&haystack[i], needle.ptr, needle_len) == 0)
		{
			return true;
		}
	}
	return false;
}

macro dupe(value)
{
	$typeof(&value) temp = malloc($sizeof(value));
	if (!temp) return ReadError.OUT_OF_MEMORY?;
	*temp = value;
	return temp;
}

fault ReadError
{
	BAD_READ,
	OUT_OF_MEMORY
}

fn Doc! readDoc(char[] url)
{
	if (contains(url, "fail")) return ReadError.BAD_READ?;
	if (contains(url, "head-missing")) return { .head = null };
	if (contains(url, "title-missing")) return { dupe(Head { .title = null })! };
	if (contains(url, "title-empty")) return { dupe(Head { .title = dupe((char[])"")! })! };
	// Not particularly elegant due to missing string functions.
	int len = libc::snprintf(null, 0, "Title of %.*s", (int)url.len, url.ptr);
	char* str = malloc(len + 1);
	if (!str) return ReadError.OUT_OF_MEMORY?;
	libc::snprintf(str, len + 1, "Title of %.*s", (int)url.len, url.ptr);
	return { dupe(Head { .title = dupe(str[..len - 1])! })! };
}

fn Summary buildSummary(Doc doc)
{
    return Summary {
        .title = doc.head ? doc.head.title : null,
        .ok = true,
    };
}

fn Summary readAndBuildSummary(char[] url)
{
	return buildSummary(readDoc(url)) ?? Summary { .title = null, .ok = false };
	/*
	// or
	Summary summary = buildSummary(readDoc(url));
	if (catch summary) return Summary { .title = null, .ok = false };
	return summary;
	// or
	Summary summary = buildSummary(readDoc(url));
	if (try summary) return summary;
	return Summary { .title = null, .ok = false };
	*/
}


fault TitleResult
{
	TITLE_MISSING
}

fn bool! isTitleNonEmpty(Doc doc)
{
	if (!doc.head) return TitleResult.TITLE_MISSING?;
	char[]* head = doc.head.title;
	if (!head) return TitleResult.TITLE_MISSING?;
	return (*head).len > 0;
}


fn bool! readWhetherTitleNonEmpty(char[] url)
{
    return isTitleNonEmpty(readDoc(url));
}

fn char* bool_to_string(bool b)
{
	return b ? "true" : "false";
}
fn char* nameFromError(anyfault e)
{
	switch (e)
	{
		case TitleResult.TITLE_MISSING:
			return "no title";
		case ReadError.BAD_READ:
			return "bad read";
		case ReadError.OUT_OF_MEMORY:
			return "out of memory";
		default:
			return "unknown error";
	}
}


fn void main()
{
    const char[][] URLS = { "good", "title-empty", "title-missing", "head-missing", "fail" };
    foreach (char[] url : URLS)
    {
        // Yes, it's pretty onerous to print strings for the moment in C3
        libc::printf(`Checking "https://%.*s/":` "\n", (int)url.len, url.ptr);
        Summary summary = readAndBuildSummary(url);
        libc::printf("  Summary: ");
        summary.print(libc::stdout());
        libc::printf("\n");
        char[] title_sure = summary.title ? *summary.title : "";
        libc::printf("  Title: %.*s\n", (int)title_sure.len, title_sure.ptr);
        bool! has_title = readWhetherTitleNonEmpty(url);
        // This looks a bit less than elegant, but as you see it's mostly due to having to
        // use printf here.
        libc::printf("  Has title: %s vs %s\n", bool_to_string(has_title) ?? nameFromError(@catchof(has_title)), (has_title ?? false) ? (char*)"true" : (char*)"false");
    }
}

/* #expect: test.ll

define void @test.Summary.print(ptr %0, ptr %1) #0 {
entry:
  %title = alloca %"char[]", align 8
  %2 = getelementptr inbounds %Summary, ptr %0, i32 0, i32 0
  %3 = load ptr, ptr %2, align 8
  %ptrbool = icmp ne ptr %3, null
  br i1 %ptrbool, label %cond.lhs, label %cond.rhs

cond.lhs:                                         ; preds = %entry
  %4 = getelementptr inbounds %Summary, ptr %0, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8
  %6 = load %"char[]", ptr %5, align 8
  br label %cond.phi

cond.rhs:                                         ; preds = %entry
  br label %cond.phi

cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
  %val = phi %"char[]" [ %6, %cond.lhs ], [ { ptr @.str.29, i64 7 }, %cond.rhs ]
  store %"char[]" %val, ptr %title, align 8
  %7 = getelementptr inbounds %"char[]", ptr %title, i32 0, i32 1
  %8 = load i64, ptr %7, align 8
  %trunc = trunc i64 %8 to i32
  %9 = getelementptr inbounds %"char[]", ptr %title, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8
  %11 = getelementptr inbounds %Summary, ptr %0, i32 0, i32 1
  %12 = load i8, ptr %11, align 8
  %13 = trunc i8 %12 to i1
  %ternary = select i1 %13, ptr @.str.31, ptr @.str.32
  %14 = call i32 (ptr, ptr, ...) @fprintf(ptr %1, ptr @.str.30, i32 %trunc, ptr %10, ptr %ternary)
  ret void
}

; Function Attrs: nounwind
define zeroext i8 @test.contains(ptr %0, i64 %1, ptr %2, i64 %3) #0 {
entry:
  %haystack = alloca %"char[]", align 8
  %needle = alloca %"char[]", align 8
  %len = alloca i64, align 8
  %needle_len = alloca i64, align 8
  %i = alloca i64, align 8
  store ptr %0, ptr %haystack, align 8
  %ptroffset = getelementptr inbounds i64, ptr %haystack, i64 1
  store i64 %1, ptr %ptroffset, align 8
  store ptr %2, ptr %needle, align 8
  %ptroffset1 = getelementptr inbounds i64, ptr %needle, i64 1
  store i64 %3, ptr %ptroffset1, align 8
  %4 = getelementptr inbounds %"char[]", ptr %haystack, i32 0, i32 1
  %5 = load i64, ptr %4, align 8
  store i64 %5, ptr %len, align 8
  %6 = getelementptr inbounds %"char[]", ptr %needle, i32 0, i32 1
  %7 = load i64, ptr %6, align 8
  store i64 %7, ptr %needle_len, align 8
  %8 = load i64, ptr %len, align 8
  %9 = load i64, ptr %needle_len, align 8
  %lt = icmp ult i64 %8, %9
  br i1 %lt, label %if.then, label %if.exit

if.then:                                          ; preds = %entry
  ret i8 0

if.exit:                                          ; preds = %entry
  %10 = load i64, ptr %needle_len, align 8
  %not = icmp eq i64 %10, 0
  br i1 %not, label %if.then2, label %if.exit3

if.then2:                                         ; preds = %if.exit
  ret i8 1

if.exit3:                                         ; preds = %if.exit
  %11 = load i64, ptr %len, align 8
  %12 = load i64, ptr %needle_len, align 8
  %sub = sub i64 %12, 1
  %sub4 = sub i64 %11, %sub
  store i64 %sub4, ptr %len, align 8
  store i64 0, ptr %i, align 8
  br label %loop.cond

loop.cond:                                        ; preds = %if.exit8, %if.exit3
  %13 = load i64, ptr %i, align 8
  %14 = load i64, ptr %len, align 8
  %lt5 = icmp ult i64 %13, %14
  br i1 %lt5, label %loop.body, label %loop.exit

loop.body:                                        ; preds = %loop.cond
  %15 = getelementptr inbounds %"char[]", ptr %haystack, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8
  %17 = load i64, ptr %i, align 8
  %ptroffset6 = getelementptr inbounds i8, ptr %16, i64 %17
  %18 = getelementptr inbounds %"char[]", ptr %needle, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8
  %20 = load i64, ptr %needle_len, align 8
  %21 = call i32 @memcmp(ptr %ptroffset6, ptr %19, i64 %20)
  %eq = icmp eq i32 %21, 0
  br i1 %eq, label %if.then7, label %if.exit8

if.then7:                                         ; preds = %loop.body
  ret i8 1

if.exit8:                                         ; preds = %loop.body
  %22 = load i64, ptr %i, align 8
  %add = add i64 %22, 1
  store i64 %add, ptr %i, align 8
  br label %loop.cond

loop.exit:                                        ; preds = %loop.cond
  ret i8 0
}

; Function Attrs: nounwind
define i64 @test.readDoc(ptr %0, ptr %1, i64 %2) #0 {
entry:
  %url = alloca %"char[]", align 8
  %reterr = alloca i64, align 8
  %literal = alloca %Doc, align 8
  %reterr8 = alloca i64, align 8
  %literal9 = alloca %Doc, align 8
  %error_var = alloca i64, align 8
  %literal10 = alloca %Head, align 8
  %value = alloca %Head, align 8
  %temp = alloca ptr, align 8
  %using = alloca ptr, align 8
  %error_var11 = alloca i64, align 8
  %using12 = alloca ptr, align 8
  %allocator = alloca ptr, align 8
  %retparam = alloca ptr, align 8
  %varargslots = alloca [1 x %any], align 16
  %indirectarg = alloca %"any[]", align 8
  %reterr22 = alloca i64, align 8
  %literal23 = alloca %Doc, align 8
  %error_var24 = alloca i64, align 8
  %literal25 = alloca %Head, align 8
  %error_var26 = alloca i64, align 8
  %value27 = alloca %"char[]", align 8
  %temp28 = alloca ptr, align 8
  %using29 = alloca ptr, align 8
  %error_var30 = alloca i64, align 8
  %using31 = alloca ptr, align 8
  %allocator33 = alloca ptr, align 8
  %retparam35 = alloca ptr, align 8
  %varargslots40 = alloca [1 x %any], align 16
  %indirectarg42 = alloca %"any[]", align 8
  %value49 = alloca %Head, align 8
  %temp50 = alloca ptr, align 8
  %using51 = alloca ptr, align 8
  %error_var52 = alloca i64, align 8
  %using53 = alloca ptr, align 8
  %allocator55 = alloca ptr, align 8
  %retparam57 = alloca ptr, align 8
  %varargslots62 = alloca [1 x %any], align 16
  %indirectarg64 = alloca %"any[]", align 8
  %len = alloca i32, align 4
  %str = alloca ptr, align 8
  %using72 = alloca ptr, align 8
  %error_var73 = alloca i64, align 8
  %using74 = alloca ptr, align 8
  %allocator75 = alloca ptr, align 8
  %retparam77 = alloca ptr, align 8
  %varargslots82 = alloca [1 x %any], align 16
  %indirectarg84 = alloca %"any[]", align 8
  %reterr92 = alloca i64, align 8
  %literal93 = alloca %Doc, align 8
  %error_var94 = alloca i64, align 8
  %literal95 = alloca %Head, align 8
  %error_var96 = alloca i64, align 8
  %value99 = alloca %"char[]", align 8
  %temp100 = alloca ptr, align 8
  %using101 = alloca ptr, align 8
  %error_var102 = alloca i64, align 8
  %using103 = alloca ptr, align 8
  %allocator105 = alloca ptr, align 8
  %retparam107 = alloca ptr, align 8
  %varargslots112 = alloca [1 x %any], align 16
  %indirectarg114 = alloca %"any[]", align 8
  %value121 = alloca %Head, align 8
  %temp122 = alloca ptr, align 8
  %using123 = alloca ptr, align 8
  %error_var124 = alloca i64, align 8
  %using125 = alloca ptr, align 8
  %allocator127 = alloca ptr, align 8
  %retparam129 = alloca ptr, align 8
  %varargslots134 = alloca [1 x %any], align 16
  %indirectarg136 = alloca %"any[]", align 8
  store ptr %1, ptr %url, align 8
  %ptroffset = getelementptr inbounds i64, ptr %url, i64 1
  store i64 %2, ptr %ptroffset, align 8
  %3 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo = load ptr, ptr %3, align 8
  %4 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi = load i64, ptr %4, align 8
  %5 = call i8 @test.contains(ptr %lo, i64 %hi, ptr @.str, i64 4)
  %6 = trunc i8 %5 to i1
  br i1 %6, label %if.then, label %if.exit

if.then:                                          ; preds = %entry
  ret i64 ptrtoint (ptr @"test.ReadError$BAD_READ" to i64)

if.exit:                                          ; preds = %entry
  %7 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo1 = load ptr, ptr %7, align 8
  %8 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi2 = load i64, ptr %8, align 8
  %9 = call i8 @test.contains(ptr %lo1, i64 %hi2, ptr @.str.3, i64 12)
  %10 = trunc i8 %9 to i1
  br i1 %10, label %if.then3, label %if.exit4

if.then3:                                         ; preds = %if.exit
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const, i32 8, i1 false)
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal, i32 8, i1 false)
  ret i64 0

if.exit4:                                         ; preds = %if.exit
  %11 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo5 = load ptr, ptr %11, align 8
  %12 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi6 = load i64, ptr %12, align 8
  %13 = call i8 @test.contains(ptr %lo5, i64 %hi6, ptr @.str.4, i64 13)
  %14 = trunc i8 %13 to i1
  br i1 %14, label %if.then7, label %if.exit18

if.then7:                                         ; preds = %if.exit4
  %15 = getelementptr inbounds %Doc, ptr %literal9, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal10, ptr align 8 @.__const.5, i32 8, i1 false)
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value, ptr align 8 %literal10, i32 8, i1 false)
  %16 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %16, ptr %using, align 8
  %17 = load ptr, ptr %using, align 8
  store ptr %17, ptr %using12, align 8
  %18 = load ptr, ptr %using12, align 8
  store ptr %18, ptr %allocator, align 8
  %19 = load ptr, ptr %allocator, align 8
  %20 = getelementptr inbounds %Allocator, ptr %19, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8
  %22 = load ptr, ptr %allocator, align 8
  %23 = call i64 %21(ptr %retparam, ptr %22, i64 8, i64 0, i64 0, ptr null, i32 0)
  %not_err = icmp eq i64 %23, 0
  %24 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %24, label %after_check, label %assign_optional

assign_optional:                                  ; preds = %if.then7
  store i64 %23, ptr %error_var11, align 8
  br label %panic_block

after_check:                                      ; preds = %if.then7
  %25 = load ptr, ptr %retparam, align 8
  br label %noerr_block

panic_block:                                      ; preds = %assign_optional
  %26 = insertvalue %any undef, ptr %error_var11, 0
  %27 = insertvalue %any %26, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %28 = getelementptr inbounds [1 x %any], ptr %varargslots, i64 0, i64 0
  store %any %27, ptr %28, align 16
  %29 = insertvalue %"any[]" undef, ptr %varargslots, 0
  %"#temp#" = insertvalue %"any[]" %29, i64 1, 1
  store %"any[]" %"#temp#", ptr %indirectarg, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7
  unreachable

noerr_block:                                      ; preds = %after_check
  store ptr %25, ptr %temp, align 8
  %30 = load ptr, ptr %temp, align 8
  %not = icmp eq ptr %30, null
  br i1 %not, label %if.then15, label %if.exit16

if.then15:                                        ; preds = %noerr_block
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var, align 8
  br label %guard_block

if.exit16:                                        ; preds = %noerr_block
  %31 = load ptr, ptr %temp, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %31, ptr align 8 %value, i32 8, i1 false)
  br label %noerr_block17

guard_block:                                      ; preds = %if.then15
  %32 = load i64, ptr %error_var, align 8
  ret i64 %32

noerr_block17:                                    ; preds = %if.exit16
  %33 = load ptr, ptr %temp, align 8
  store ptr %33, ptr %15, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal9, i32 8, i1 false)
  ret i64 0

if.exit18:                                        ; preds = %if.exit4
  %34 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo19 = load ptr, ptr %34, align 8
  %35 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi20 = load i64, ptr %35, align 8
  %36 = call i8 @test.contains(ptr %lo19, i64 %hi20, ptr @.str.6, i64 11)
  %37 = trunc i8 %36 to i1
  br i1 %37, label %if.then21, label %if.exit71

if.then21:                                        ; preds = %if.exit18
  %38 = getelementptr inbounds %Doc, ptr %literal23, i32 0, i32 0
  store ptr null, ptr %literal25, align 8
  %39 = getelementptr inbounds %Head, ptr %literal25, i32 0, i32 0
  store %"char[]" zeroinitializer, ptr %value27, align 8
  %40 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %40, ptr %using29, align 8
  %41 = load ptr, ptr %using29, align 8
  store ptr %41, ptr %using31, align 8
  %42 = load ptr, ptr %using31, align 8
  store ptr %42, ptr %allocator33, align 8
  %43 = load ptr, ptr %allocator33, align 8
  %44 = getelementptr inbounds %Allocator, ptr %43, i32 0, i32 0
  %45 = load ptr, ptr %44, align 8
  %46 = load ptr, ptr %allocator33, align 8
  %47 = call i64 %45(ptr %retparam35, ptr %46, i64 16, i64 0, i64 0, ptr null, i32 0)
  %not_err36 = icmp eq i64 %47, 0
  %48 = call i1 @llvm.expect.i1(i1 %not_err36, i1 true)
  br i1 %48, label %after_check38, label %assign_optional37

assign_optional37:                                ; preds = %if.then21
  store i64 %47, ptr %error_var30, align 8
  br label %panic_block39

after_check38:                                    ; preds = %if.then21
  %49 = load ptr, ptr %retparam35, align 8
  br label %noerr_block43

panic_block39:                                    ; preds = %assign_optional37
  %50 = insertvalue %any undef, ptr %error_var30, 0
  %51 = insertvalue %any %50, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %52 = getelementptr inbounds [1 x %any], ptr %varargslots40, i64 0, i64 0
  store %any %51, ptr %52, align 16
  %53 = insertvalue %"any[]" undef, ptr %varargslots40, 0
  %"#temp#41" = insertvalue %"any[]" %53, i64 1, 1
  store %"any[]" %"#temp#41", ptr %indirectarg42, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func
  unreachable

noerr_block43:                                    ; preds = %after_check38
  store ptr %49, ptr %temp28, align 8
  %54 = load ptr, ptr %temp28, align 8
  %not44 = icmp eq ptr %54, null
  br i1 %not44, label %if.then45, label %if.exit46

if.then45:                                        ; preds = %noerr_block43
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var26, align 8
  br label %guard_block47

if.exit46:                                        ; preds = %noerr_block43
  %55 = load ptr, ptr %temp28, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %55, ptr align 8 %value27, i32 16, i1 false)
  br label %noerr_block48

guard_block47:                                    ; preds = %if.then45
  %56 = load i64, ptr %error_var26, align 8
  ret i64 %56

noerr_block48:                                    ; preds = %if.exit46
  %57 = load ptr, ptr %temp28, align 8
  store ptr %57, ptr %39, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value49, ptr align 8 %literal25, i32 8, i1 false)
  %58 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %58, ptr %using51, align 8
  %59 = load ptr, ptr %using51, align 8
  store ptr %59, ptr %using53, align 8
  %60 = load ptr, ptr %using53, align 8
  store ptr %60, ptr %allocator55, align 8
  %61 = load ptr, ptr %allocator55, align 8
  %62 = getelementptr inbounds %Allocator, ptr %61, i32 0, i32 0
  %63 = load ptr, ptr %62, align 8
  %64 = load ptr, ptr %allocator55, align 8
  %65 = call i64 %63(ptr %retparam57, ptr %64, i64 8, i64 0, i64 0, ptr null, i32 0)
  %not_err58 = icmp eq i64 %65, 0
  %66 = call i1 @llvm.expect.i1(i1 %not_err58, i1 true)
  br i1 %66, label %after_check60, label %assign_optional59

assign_optional59:                                ; preds = %noerr_block48
  store i64 %65, ptr %error_var52, align 8
  br label %panic_block61

after_check60:                                    ; preds = %noerr_block48
  %67 = load ptr, ptr %retparam57, align 8
  br label %noerr_block65

panic_block61:                                    ; preds = %assign_optional59
  %68 = insertvalue %any undef, ptr %error_var52, 0
  %69 = insertvalue %any %68, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %70 = getelementptr inbounds [1 x %any], ptr %varargslots62, i64 0, i64 0
  store %any %69, ptr %70, align 16
  %71 = insertvalue %"any[]" undef, ptr %varargslots62, 0
  %"#temp#63" = insertvalue %"any[]" %71, i64 1, 1
  store %"any[]" %"#temp#63", ptr %indirectarg64, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func
  unreachable

noerr_block65:                                    ; preds = %after_check60
  store ptr %67, ptr %temp50, align 8
  %72 = load ptr, ptr %temp50, align 8
  %not66 = icmp eq ptr %72, null
  br i1 %not66, label %if.then67, label %if.exit68

if.then67:                                        ; preds = %noerr_block65
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var24, align 8
  br label %guard_block69

if.exit68:                                        ; preds = %noerr_block65
  %73 = load ptr, ptr %temp50, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %73, ptr align 8 %value49, i32 8, i1 false)
  br label %noerr_block70

guard_block69:                                    ; preds = %if.then67
  %74 = load i64, ptr %error_var24, align 8
  ret i64 %74

noerr_block70:                                    ; preds = %if.exit68
  %75 = load ptr, ptr %temp50, align 8
  store ptr %75, ptr %38, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal23, i32 8, i1 false)
  ret i64 0

if.exit71:                                        ; preds = %if.exit18
  %76 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %77 = load i64, ptr %76, align 8
  %trunc = trunc i64 %77 to i32
  %78 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %79 = load ptr, ptr %78, align 8
  %80 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr null, i64 0, ptr @.str.7, i32 %trunc, ptr %79)
  store i32 %80, ptr %len, align 4
  %81 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %81, ptr %using72, align 8
  %82 = load ptr, ptr %using72, align 8
  store ptr %82, ptr %using74, align 8
  %83 = load i32, ptr %len, align 4
  %add = add i32 %83, 1
  %84 = load ptr, ptr %using74, align 8
  store ptr %84, ptr %allocator75, align 8
  %sext = sext i32 %add to i64
  %add76 = add i64 %sext, 0
  %85 = load ptr, ptr %allocator75, align 8
  %86 = getelementptr inbounds %Allocator, ptr %85, i32 0, i32 0
  %87 = load ptr, ptr %86, align 8
  %88 = load ptr, ptr %allocator75, align 8
  %89 = call i64 %87(ptr %retparam77, ptr %88, i64 %add76, i64 0, i64 0, ptr null, i32 0)
  %not_err78 = icmp eq i64 %89, 0
  %90 = call i1 @llvm.expect.i1(i1 %not_err78, i1 true)
  br i1 %90, label %after_check80, label %assign_optional79

assign_optional79:                                ; preds = %if.exit71
  store i64 %89, ptr %error_var73, align 8
  br label %panic_block81

after_check80:                                    ; preds = %if.exit71
  %91 = load ptr, ptr %retparam77, align 8
  br label %noerr_block85

panic_block81:                                    ; preds = %assign_optional79
  %92 = insertvalue %any undef, ptr %error_var73, 0
  %93 = insertvalue %any %92, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %94 = getelementptr inbounds [1 x %any], ptr %varargslots82, i64 0, i64 0
  store %any %93, ptr %94, align 16
  %95 = insertvalue %"any[]" undef, ptr %varargslots82, 0
  %"#temp#83" = insertvalue %"any[]" %95, i64 1, 1
  store %"any[]" %"#temp#83", ptr %indirectarg84, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func
  unreachable

noerr_block85:                                    ; preds = %after_check80
  store ptr %91, ptr %str, align 8
  %96 = load ptr, ptr %str, align 8
  %not86 = icmp eq ptr %96, null
  br i1 %not86, label %if.then87, label %if.exit88

if.then87:                                        ; preds = %noerr_block85
  ret i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64)

if.exit88:                                        ; preds = %noerr_block85
  %97 = load ptr, ptr %str, align 8
  %98 = load i32, ptr %len, align 4
  %sext89 = sext i32 %98 to i64
  %add90 = add i64 %sext89, 1
  %99 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %100 = load i64, ptr %99, align 8
  %trunc91 = trunc i64 %100 to i32
  %101 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %102 = load ptr, ptr %101, align 8
  %103 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr %97, i64 %add90, ptr @.str.8, i32 %trunc91, ptr %102)
  %104 = getelementptr inbounds %Doc, ptr %literal93, i32 0, i32 0
  store ptr null, ptr %literal95, align 8
  %105 = getelementptr inbounds %Head, ptr %literal95, i32 0, i32 0
  %106 = load ptr, ptr %str, align 8
  %107 = load i32, ptr %len, align 4
  %sub = sub i32 %107, 1
  %sext97 = sext i32 %sub to i64
  %108 = add i64 %sext97, 1
  %size = sub i64 %108, 0
  %ptroffset98 = getelementptr inbounds i8, ptr %106, i64 0
  %109 = insertvalue %"char[]" undef, ptr %ptroffset98, 0
  %110 = insertvalue %"char[]" %109, i64 %size, 1
  store %"char[]" %110, ptr %value99, align 8
  %111 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %111, ptr %using101, align 8
  %112 = load ptr, ptr %using101, align 8
  store ptr %112, ptr %using103, align 8
  %113 = load ptr, ptr %using103, align 8
  store ptr %113, ptr %allocator105, align 8
  %114 = load ptr, ptr %allocator105, align 8
  %115 = getelementptr inbounds %Allocator, ptr %114, i32 0, i32 0
  %116 = load ptr, ptr %115, align 8
  %117 = load ptr, ptr %allocator105, align 8
  %118 = call i64 %116(ptr %retparam107, ptr %117, i64 16, i64 0, i64 0, ptr null, i32 0)
  %not_err108 = icmp eq i64 %118, 0
  %119 = call i1 @llvm.expect.i1(i1 %not_err108, i1 true)
  br i1 %119, label %after_check110, label %assign_optional109

assign_optional109:                               ; preds = %if.exit88
  store i64 %118, ptr %error_var102, align 8
  br label %panic_block111

after_check110:                                   ; preds = %if.exit88
  %120 = load ptr, ptr %retparam107, align 8
  br label %noerr_block115

panic_block111:                                   ; preds = %assign_optional109
  %121 = insertvalue %any undef, ptr %error_var102, 0
  %122 = insertvalue %any %121, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %123 = getelementptr inbounds [1 x %any], ptr %varargslots112, i64 0, i64 0
  store %any %122, ptr %123, align 16
  %124 = insertvalue %"any[]" undef, ptr %varargslots112, 0
  %"#temp#113" = insertvalue %"any[]" %124, i64 1, 1
  store %"any[]" %"#temp#113", ptr %indirectarg114, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func
  unreachable

noerr_block115:                                   ; preds = %after_check110
  store ptr %120, ptr %temp100, align 8
  %125 = load ptr, ptr %temp100, align 8
  %not116 = icmp eq ptr %125, null
  br i1 %not116, label %if.then117, label %if.exit118

if.then117:                                       ; preds = %noerr_block115
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var96, align 8
  br label %guard_block119

if.exit118:                                       ; preds = %noerr_block115
  %126 = load ptr, ptr %temp100, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %126, ptr align 8 %value99, i32 16, i1 false)
  br label %noerr_block120

guard_block119:                                   ; preds = %if.then117
  %127 = load i64, ptr %error_var96, align 8
  ret i64 %127

noerr_block120:                                   ; preds = %if.exit118
  %128 = load ptr, ptr %temp100, align 8
  store ptr %128, ptr %105, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value121, ptr align 8 %literal95, i32 8, i1 false)
  %129 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %129, ptr %using123, align 8
  %130 = load ptr, ptr %using123, align 8
  store ptr %130, ptr %using125, align 8
  %131 = load ptr, ptr %using125, align 8
  store ptr %131, ptr %allocator127, align 8
  %132 = load ptr, ptr %allocator127, align 8
  %133 = getelementptr inbounds %Allocator, ptr %132, i32 0, i32 0
  %134 = load ptr, ptr %133, align 8
  %135 = load ptr, ptr %allocator127, align 8
  %136 = call i64 %134(ptr %retparam129, ptr %135, i64 8, i64 0, i64 0, ptr null, i32 0)
  %not_err130 = icmp eq i64 %136, 0
  %137 = call i1 @llvm.expect.i1(i1 %not_err130, i1 true)
  br i1 %137, label %after_check132, label %assign_optional131

assign_optional131:                               ; preds = %noerr_block120
  store i64 %136, ptr %error_var124, align 8
  br label %panic_block133

after_check132:                                   ; preds = %noerr_block120
  %138 = load ptr, ptr %retparam129, align 8
  br label %noerr_block137

panic_block133:                                   ; preds = %assign_optional131
  %139 = insertvalue %any undef, ptr %error_var124, 0
  %140 = insertvalue %any %139, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %141 = getelementptr inbounds [1 x %any], ptr %varargslots134, i64 0, i64 0
  store %any %140, ptr %141, align 16
  %142 = insertvalue %"any[]" undef, ptr %varargslots134, 0
  %"#temp#135" = insertvalue %"any[]" %142, i64 1, 1
  store %"any[]" %"#temp#135", ptr %indirectarg136, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7
  unreachable

noerr_block137:                                   ; preds = %after_check132
  store ptr %138, ptr %temp122, align 8
  %143 = load ptr, ptr %temp122, align 8
  %not138 = icmp eq ptr %143, null
  br i1 %not138, label %if.then139, label %if.exit140

if.then139:                                       ; preds = %noerr_block137
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var94, align 8
  br label %guard_block141

if.exit140:                                       ; preds = %noerr_block137
  %144 = load ptr, ptr %temp122, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %144, ptr align 8 %value121, i32 8, i1 false)
  br label %noerr_block142

guard_block141:                                   ; preds = %if.then139
  %145 = load i64, ptr %error_var94, align 8
  ret i64 %145

noerr_block142:                                   ; preds = %if.exit140
  %146 = load ptr, ptr %temp122, align 8
  store ptr %146, ptr %104, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal93, i32 8, i1 false)
  ret i64 0
}

; Function Attrs: nounwind
define { ptr, i8 } @test.buildSummary(ptr %0) #0 {
entry:
  %doc = alloca %Doc, align 8
  %literal = alloca %Summary, align 8
  store ptr %0, ptr %doc, align 8
  %1 = getelementptr inbounds %Summary, ptr %literal, i32 0, i32 0
  store ptr null, ptr %1, align 8
  %2 = getelementptr inbounds %Summary, ptr %literal, i32 0, i32 1
  store i8 0, ptr %2, align 8
  %3 = getelementptr inbounds %Summary, ptr %literal, i32 0, i32 0
  %4 = getelementptr inbounds %Doc, ptr %doc, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8
  %ptrbool = icmp ne ptr %5, null
  br i1 %ptrbool, label %cond.lhs, label %cond.rhs

cond.lhs:                                         ; preds = %entry
  %6 = getelementptr inbounds %Doc, ptr %doc, i32 0, i32 0
  %7 = load ptr, ptr %6, align 8
  %8 = getelementptr inbounds %Head, ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8
  br label %cond.phi

cond.rhs:                                         ; preds = %entry
  br label %cond.phi

cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
  %val = phi ptr [ %9, %cond.lhs ], [ null, %cond.rhs ]
  store ptr %val, ptr %3, align 8
  %10 = getelementptr inbounds %Summary, ptr %literal, i32 0, i32 1
  store i8 1, ptr %10, align 8
  %11 = load { ptr, i8 }, ptr %literal, align 8
  ret { ptr, i8 } %11
}

; Function Attrs: nounwind
define { ptr, i8 } @test.readAndBuildSummary(ptr %0, i64 %1) #0 {
entry:
  %url = alloca %"char[]", align 8
  %retparam = alloca %Doc, align 8
  %result = alloca %Summary, align 8
  %literal = alloca %Summary, align 8
  %taddr = alloca %Summary, align 8
  store ptr %0, ptr %url, align 8
  %ptroffset = getelementptr inbounds i64, ptr %url, i64 1
  store i64 %1, ptr %ptroffset, align 8
  %2 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo = load ptr, ptr %2, align 8
  %3 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi = load i64, ptr %3, align 8
  %4 = call i64 @test.readDoc(ptr %retparam, ptr %lo, i64 %hi)
  %not_err = icmp eq i64 %4, 0
  %5 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %5, label %after_check, label %else_block

after_check:                                      ; preds = %entry
  %6 = load ptr, ptr %retparam, align 8
  %7 = call { ptr, i8 } @test.buildSummary(ptr %6)
  store { ptr, i8 } %7, ptr %result, align 8
  %8 = load %Summary, ptr %result, align 8
  br label %phi_block

else_block:                                       ; preds = %entry
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 8 @.__const.9, i32 16, i1 false)
  %9 = load %Summary, ptr %literal, align 8
  br label %phi_block

phi_block:                                        ; preds = %else_block, %after_check
  %val = phi %Summary [ %8, %after_check ], [ %9, %else_block ]
  store %Summary %val, ptr %taddr, align 8
  %10 = load { ptr, i8 }, ptr %taddr, align 8
  ret { ptr, i8 } %10
}

; Function Attrs: nounwind
define i64 @test.isTitleNonEmpty(ptr %0, ptr %1) #0 {
entry:
  %doc = alloca %Doc, align 8
  %head = alloca ptr, align 8
  %reterr = alloca i64, align 8
  store ptr %1, ptr %doc, align 8
  %2 = getelementptr inbounds %Doc, ptr %doc, i32 0, i32 0
  %3 = load ptr, ptr %2, align 8
  %not = icmp eq ptr %3, null
  br i1 %not, label %if.then, label %if.exit

if.then:                                          ; preds = %entry
  ret i64 ptrtoint (ptr @"test.TitleResult$TITLE_MISSING" to i64)

if.exit:                                          ; preds = %entry
  %4 = getelementptr inbounds %Doc, ptr %doc, i32 0, i32 0
  %5 = load ptr, ptr %4, align 8
  %6 = getelementptr inbounds %Head, ptr %5, i32 0, i32 0
  %7 = load ptr, ptr %6, align 8
  store ptr %7, ptr %head, align 8
  %8 = load ptr, ptr %head, align 8
  %not1 = icmp eq ptr %8, null
  br i1 %not1, label %if.then2, label %if.exit3

if.then2:                                         ; preds = %if.exit
  ret i64 ptrtoint (ptr @"test.TitleResult$TITLE_MISSING" to i64)

if.exit3:                                         ; preds = %if.exit
  %9 = load ptr, ptr %head, align 8
  %10 = getelementptr inbounds %"char[]", ptr %9, i32 0, i32 1
  %11 = load i64, ptr %10, align 8
  %lt = icmp ult i64 0, %11
  %12 = zext i1 %lt to i8
  store i8 %12, ptr %0, align 1
  ret i64 0
}

; Function Attrs: nounwind
define i64 @test.readWhetherTitleNonEmpty(ptr %0, ptr %1, i64 %2) #0 {
entry:
  %url = alloca %"char[]", align 8
  %reterr = alloca i64, align 8
  %retparam = alloca i8, align 1
  %retparam1 = alloca %Doc, align 8
  store ptr %1, ptr %url, align 8
  %ptroffset = getelementptr inbounds i64, ptr %url, i64 1
  store i64 %2, ptr %ptroffset, align 8
  %3 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo = load ptr, ptr %3, align 8
  %4 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi = load i64, ptr %4, align 8
  %5 = call i64 @test.readDoc(ptr %retparam1, ptr %lo, i64 %hi)
  %not_err = icmp eq i64 %5, 0
  %6 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %6, label %after_check, label %assign_optional

assign_optional:                                  ; preds = %entry
  store i64 %5, ptr %reterr, align 8
  br label %err_retblock

after_check:                                      ; preds = %entry
  %7 = load ptr, ptr %retparam1, align 8
  %8 = call i64 @test.isTitleNonEmpty(ptr %retparam, ptr %7)
  %not_err2 = icmp eq i64 %8, 0
  %9 = call i1 @llvm.expect.i1(i1 %not_err2, i1 true)
  br i1 %9, label %after_check4, label %assign_optional3

assign_optional3:                                 ; preds = %after_check
  store i64 %8, ptr %reterr, align 8
  br label %err_retblock

after_check4:                                     ; preds = %after_check
  %10 = load i8, ptr %retparam, align 1
  store i8 %10, ptr %0, align 1
  ret i64 0

err_retblock:                                     ; preds = %assign_optional3, %assign_optional
  %11 = load i64, ptr %reterr, align 8
  ret i64 %11
}

; Function Attrs: nounwind
define ptr @test.bool_to_string(i8 zeroext %0) #0 {
entry:
  %1 = trunc i8 %0 to i1
  %ternary = select i1 %1, %"char[]" { ptr @.str.10, i64 4 }, %"char[]" { ptr @.str.11, i64 5 }
  %2 = extractvalue %"char[]" %ternary, 0
  ret ptr %2
}

; Function Attrs: nounwind
define ptr @test.nameFromError(i64 %0) #0 {
entry:
  %switch = alloca i64, align 8
  store i64 %0, ptr %switch, align 8
  br label %switch.entry

switch.entry:                                     ; preds = %entry
  %1 = load i64, ptr %switch, align 8
  %eq = icmp eq i64 ptrtoint (ptr @"test.TitleResult$TITLE_MISSING" to i64), %1
  br i1 %eq, label %switch.case, label %next_if

switch.case:                                      ; preds = %switch.entry
  ret ptr @.str.12

next_if:                                          ; preds = %switch.entry
  %eq1 = icmp eq i64 ptrtoint (ptr @"test.ReadError$BAD_READ" to i64), %1
  br i1 %eq1, label %switch.case2, label %next_if3

switch.case2:                                     ; preds = %next_if
  ret ptr @.str.13

next_if3:                                         ; preds = %next_if
  %eq4 = icmp eq i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), %1
  br i1 %eq4, label %switch.case5, label %next_if6

switch.case5:                                     ; preds = %next_if3
  ret ptr @.str.14

next_if6:                                         ; preds = %next_if3
  br label %switch.default

switch.default:                                   ; preds = %next_if6
  ret ptr @.str.15
}

; Function Attrs: nounwind
define void @test.main() #0 {
entry:
  %URLS = alloca %"char[][]", align 8
  %literal = alloca [5 x %"char[]"], align 16
  %.anon = alloca i64, align 8
  %.anon1 = alloca i64, align 8
  %url = alloca %"char[]", align 8
  %summary = alloca %Summary, align 8
  %result = alloca %Summary, align 8
  %title_sure = alloca %"char[]", align 8
  %has_title = alloca i8, align 1
  %has_title.f = alloca i64, align 8
  %retparam = alloca i8, align 1
  %blockret = alloca i64, align 8
  %f = alloca i64, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %literal, ptr align 16 @.__const.21, i32 80, i1 false)
  %0 = insertvalue %"char[][]" undef, ptr %literal, 0
  %1 = insertvalue %"char[][]" %0, i64 5, 1
  store %"char[][]" %1, ptr %URLS, align 8
  %2 = getelementptr inbounds %"char[][]", ptr %URLS, i32 0, i32 1
  %3 = load i64, ptr %2, align 8
  store i64 %3, ptr %.anon, align 8
  store i64 0, ptr %.anon1, align 8
  br label %loop.cond

loop.cond:                                        ; preds = %phi_block16, %entry
  %4 = load i64, ptr %.anon1, align 8
  %5 = load i64, ptr %.anon, align 8
  %lt = icmp ult i64 %4, %5
  br i1 %lt, label %loop.body, label %loop.exit

loop.body:                                        ; preds = %loop.cond
  %6 = getelementptr inbounds %"char[][]", ptr %URLS, i32 0, i32 0
  %7 = load ptr, ptr %6, align 8
  %8 = load i64, ptr %.anon1, align 8
  %ptroffset = getelementptr inbounds %"char[]", ptr %7, i64 %8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %url, ptr align 8 %ptroffset, i32 16, i1 false)
  %9 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %10 = load i64, ptr %9, align 8
  %trunc = trunc i64 %10 to i32
  %11 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8
  %13 = call i32 (ptr, ...) @printf(ptr @.str.22, i32 %trunc, ptr %12)
  %14 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo = load ptr, ptr %14, align 8
  %15 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi = load i64, ptr %15, align 8
  %16 = call { ptr, i8 } @test.readAndBuildSummary(ptr %lo, i64 %hi)
  store { ptr, i8 } %16, ptr %result, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %summary, ptr align 8 %result, i32 16, i1 false)
  %17 = call i32 (ptr, ...) @printf(ptr @.str.23)
  %18 = load ptr, ptr @__stdoutp, align 8
  call void @test.Summary.print(ptr %summary, ptr %18)
  %19 = call i32 (ptr, ...) @printf(ptr @.str.24)
  %20 = getelementptr inbounds %Summary, ptr %summary, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8
  %ptrbool = icmp ne ptr %21, null
  br i1 %ptrbool, label %cond.lhs, label %cond.rhs

cond.lhs:                                         ; preds = %loop.body
  %22 = getelementptr inbounds %Summary, ptr %summary, i32 0, i32 0
  %23 = load ptr, ptr %22, align 8
  %24 = load %"char[]", ptr %23, align 8
  br label %cond.phi

cond.rhs:                                         ; preds = %loop.body
  br label %cond.phi

cond.phi:                                         ; preds = %cond.rhs, %cond.lhs
  %val = phi %"char[]" [ %24, %cond.lhs ], [ zeroinitializer, %cond.rhs ]
  store %"char[]" %val, ptr %title_sure, align 8
  %25 = getelementptr inbounds %"char[]", ptr %title_sure, i32 0, i32 1
  %26 = load i64, ptr %25, align 8
  %trunc2 = trunc i64 %26 to i32
  %27 = getelementptr inbounds %"char[]", ptr %title_sure, i32 0, i32 0
  %28 = load ptr, ptr %27, align 8
  %29 = call i32 (ptr, ...) @printf(ptr @.str.25, i32 %trunc2, ptr %28)
  %30 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo3 = load ptr, ptr %30, align 8
  %31 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi4 = load i64, ptr %31, align 8
  %32 = call i64 @test.readWhetherTitleNonEmpty(ptr %retparam, ptr %lo3, i64 %hi4)
  %not_err = icmp eq i64 %32, 0
  %33 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %33, label %after_check, label %assign_optional

assign_optional:                                  ; preds = %cond.phi
  store i64 %32, ptr %has_title.f, align 8
  br label %after_assign

after_check:                                      ; preds = %cond.phi
  %34 = load i8, ptr %retparam, align 1
  store i8 %34, ptr %has_title, align 1
  store i64 0, ptr %has_title.f, align 8
  br label %after_assign

after_assign:                                     ; preds = %after_check, %assign_optional
  %optval = load i64, ptr %has_title.f, align 8
  %not_err5 = icmp eq i64 %optval, 0
  %35 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
  br i1 %35, label %after_check6, label %else_block

after_check6:                                     ; preds = %after_assign
  %36 = load i8, ptr %has_title, align 1
  %37 = call ptr @test.bool_to_string(i8 zeroext %36)
  br label %phi_block

else_block:                                       ; preds = %after_assign
  br label %testblock

testblock:                                        ; preds = %else_block
  %optval7 = load i64, ptr %has_title.f, align 8
  %not_err8 = icmp eq i64 %optval7, 0
  %38 = call i1 @llvm.expect.i1(i1 %not_err8, i1 true)
  br i1 %38, label %after_check10, label %assign_optional9

assign_optional9:                                 ; preds = %testblock
  store i64 %optval7, ptr %f, align 8
  br label %end_block

after_check10:                                    ; preds = %testblock
  store i64 0, ptr %f, align 8
  br label %end_block

end_block:                                        ; preds = %after_check10, %assign_optional9
  %39 = load i64, ptr %f, align 8
  %neq = icmp ne i64 %39, 0
  br i1 %neq, label %if.then, label %if.exit

if.then:                                          ; preds = %end_block
  %40 = load i64, ptr %f, align 8
  store i64 %40, ptr %blockret, align 8
  br label %expr_block.exit

if.exit:                                          ; preds = %end_block
  store i64 0, ptr %blockret, align 8
  br label %expr_block.exit

expr_block.exit:                                  ; preds = %if.exit, %if.then
  %41 = load i64, ptr %blockret, align 8
  %42 = call ptr @test.nameFromError(i64 %41)
  br label %phi_block

phi_block:                                        ; preds = %expr_block.exit, %after_check6
  %val11 = phi ptr [ %37, %after_check6 ], [ %42, %expr_block.exit ]
  %optval12 = load i64, ptr %has_title.f, align 8
  %not_err13 = icmp eq i64 %optval12, 0
  %43 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
  br i1 %43, label %after_check14, label %else_block15

after_check14:                                    ; preds = %phi_block
  %44 = load i8, ptr %has_title, align 1
  %45 = trunc i8 %44 to i1
  br label %phi_block16

else_block15:                                     ; preds = %phi_block
  br label %phi_block16

phi_block16:                                      ; preds = %else_block15, %after_check14
  %val17 = phi i1 [ %45, %after_check14 ], [ false, %else_block15 ]
  %ternary = select i1 %val17, ptr @.str.27, ptr @.str.28
  %46 = call i32 (ptr, ...) @printf(ptr @.str.26, ptr %val11, ptr %ternary)
  %47 = load i64, ptr %.anon1, align 8
  %add = add i64 %47, 1
  store i64 %add, ptr %.anon1, align 8
  br label %loop.cond

loop.exit:                                        ; preds = %loop.cond
  ret void
}