c3c/test/test_suite/errors/error_regression_2.c3t

// #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.26, 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.28, ptr @.str.29
  %14 = call i32 (ptr, ptr, ...) @fprintf(ptr %1, ptr @.str.27, 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
  %value = alloca %Head, align 8
  %literal10 = alloca %Head, align 8
  %temp = alloca ptr, align 8
  %using = alloca ptr, align 8
  %end_padding = alloca i64, align 8
  %error_var11 = alloca i64, align 8
  %using12 = alloca ptr, align 8
  %end_padding13 = alloca i64, align 8
  %.anon = alloca i64, align 8
  %size = alloca i64, align 8
  %retparam = alloca ptr, align 8
  %varargslots = alloca [1 x %any], align 16
  %indirectarg = alloca %"any[]", align 8
  %reterr23 = alloca i64, align 8
  %literal24 = alloca %Doc, align 8
  %error_var25 = alloca i64, align 8
  %value26 = alloca %Head, align 8
  %literal27 = alloca %Head, align 8
  %error_var28 = alloca i64, align 8
  %value29 = alloca %"char[]", align 8
  %temp30 = alloca ptr, align 8
  %using31 = alloca ptr, align 8
  %end_padding32 = alloca i64, align 8
  %error_var33 = alloca i64, align 8
  %using34 = alloca ptr, align 8
  %end_padding35 = alloca i64, align 8
  %.anon36 = alloca i64, align 8
  %size38 = alloca i64, align 8
  %retparam41 = alloca ptr, align 8
  %varargslots46 = alloca [1 x %any], align 16
  %indirectarg47 = alloca %"any[]", align 8
  %temp54 = alloca ptr, align 8
  %using55 = alloca ptr, align 8
  %end_padding56 = alloca i64, align 8
  %error_var57 = alloca i64, align 8
  %using58 = alloca ptr, align 8
  %end_padding59 = alloca i64, align 8
  %.anon60 = alloca i64, align 8
  %size62 = alloca i64, align 8
  %retparam65 = alloca ptr, align 8
  %varargslots70 = alloca [1 x %any], align 16
  %indirectarg71 = alloca %"any[]", align 8
  %len = alloca i32, align 4
  %str = alloca ptr, align 8
  %using79 = alloca ptr, align 8
  %end_padding80 = alloca i64, align 8
  %error_var81 = alloca i64, align 8
  %using82 = alloca ptr, align 8
  %end_padding83 = alloca i64, align 8
  %.anon84 = alloca i32, align 4
  %size86 = alloca i64, align 8
  %retparam88 = alloca ptr, align 8
  %varargslots93 = alloca [1 x %any], align 16
  %indirectarg94 = alloca %"any[]", align 8
  %reterr102 = alloca i64, align 8
  %literal103 = alloca %Doc, align 8
  %error_var104 = alloca i64, align 8
  %value105 = alloca %Head, align 8
  %literal106 = alloca %Head, align 8
  %error_var107 = alloca i64, align 8
  %value108 = alloca %"char[]", align 8
  %temp112 = alloca ptr, align 8
  %using113 = alloca ptr, align 8
  %end_padding114 = alloca i64, align 8
  %error_var115 = alloca i64, align 8
  %using116 = alloca ptr, align 8
  %end_padding117 = alloca i64, align 8
  %.anon118 = alloca i64, align 8
  %size120 = alloca i64, align 8
  %retparam123 = alloca ptr, align 8
  %varargslots128 = alloca [1 x %any], align 16
  %indirectarg129 = alloca %"any[]", align 8
  %temp136 = alloca ptr, align 8
  %using137 = alloca ptr, align 8
  %end_padding138 = alloca i64, align 8
  %error_var139 = alloca i64, align 8
  %using140 = alloca ptr, align 8
  %end_padding141 = alloca i64, align 8
  %.anon142 = alloca i64, align 8
  %size144 = alloca i64, align 8
  %retparam147 = alloca ptr, align 8
  %varargslots152 = alloca [1 x %any], align 16
  %indirectarg153 = 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
  %11 = getelementptr inbounds %Doc, ptr %literal, i32 0, i32 0
  store ptr null, ptr %11, align 8
  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
  %12 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo5 = load ptr, ptr %12, align 8
  %13 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi6 = load i64, ptr %13, align 8
  %14 = call i8 @test.contains(ptr %lo5, i64 %hi6, ptr @.str.4, i64 13)
  %15 = trunc i8 %14 to i1
  br i1 %15, label %if.then7, label %if.exit19

if.then7:                                         ; preds = %if.exit4
  %16 = getelementptr inbounds %Doc, ptr %literal9, i32 0, i32 0
  %17 = getelementptr inbounds %Head, ptr %literal10, i32 0, i32 0
  store ptr null, ptr %17, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value, ptr align 8 %literal10, i32 8, i1 false)
  %18 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %18, ptr %using, align 8
  store i64 0, ptr %end_padding, align 8
  %19 = load ptr, ptr %using, align 8
  store ptr %19, ptr %using12, align 8
  %20 = load i64, ptr %end_padding, align 8
  store i64 %20, ptr %end_padding13, align 8
  store i64 8, ptr %.anon, align 8
  %21 = load ptr, ptr %using12, align 8
  %22 = load i64, ptr %.anon, align 8
  %23 = load i64, ptr %end_padding13, align 8
  %add = add i64 %22, %23
  store i64 %add, ptr %size, align 8
  %24 = getelementptr inbounds %Allocator, ptr %21, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8
  %26 = load i64, ptr %size, align 8
  %27 = call i64 %25(ptr %retparam, ptr %21, i64 %26, i64 0, i64 0, ptr null, i32 0)
  %not_err = icmp eq i64 %27, 0
  %28 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %28, label %after_check, label %assign_optional

assign_optional:                                  ; preds = %if.then7
  store i64 %27, ptr %error_var11, align 8
  br label %panic_block

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

panic_block:                                      ; preds = %assign_optional
  %30 = insertvalue %any undef, ptr %error_var11, 0
  %31 = insertvalue %any %30, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %32 = getelementptr inbounds [1 x %any], ptr %varargslots, i64 0, i64 0
  store %any %31, ptr %32, align 16
  %33 = insertvalue %"any[]" undef, ptr %varargslots, 0
  %34 = insertvalue %"any[]" %33, i64 1, 1
  store %"any[]" %34, ptr %indirectarg, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7, i32 200, ptr byval(%"any[]") align 8 %indirectarg)
  unreachable

noerr_block:                                      ; preds = %after_check
  store ptr %29, ptr %temp, align 8
  %35 = load ptr, ptr %temp, align 8
  %not = icmp eq ptr %35, null
  br i1 %not, label %if.then16, label %if.exit17

if.then16:                                        ; preds = %noerr_block
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var, align 8
  br label %guard_block

if.exit17:                                        ; preds = %noerr_block
  %36 = load ptr, ptr %temp, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %36, ptr align 8 %value, i32 8, i1 false)
  br label %noerr_block18

guard_block:                                      ; preds = %if.then16
  %37 = load i64, ptr %error_var, align 8
  ret i64 %37

noerr_block18:                                    ; preds = %if.exit17
  %38 = load ptr, ptr %temp, align 8
  store ptr %38, ptr %16, 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.exit19:                                        ; preds = %if.exit4
  %39 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo20 = load ptr, ptr %39, align 8
  %40 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi21 = load i64, ptr %40, align 8
  %41 = call i8 @test.contains(ptr %lo20, i64 %hi21, ptr @.str.5, i64 11)
  %42 = trunc i8 %41 to i1
  br i1 %42, label %if.then22, label %if.exit78

if.then22:                                        ; preds = %if.exit19
  %43 = getelementptr inbounds %Doc, ptr %literal24, i32 0, i32 0
  store ptr null, ptr %literal27, align 8
  %44 = getelementptr inbounds %Head, ptr %literal27, i32 0, i32 0
  store %"char[]" zeroinitializer, ptr %value29, align 8
  %45 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %45, ptr %using31, align 8
  store i64 0, ptr %end_padding32, align 8
  %46 = load ptr, ptr %using31, align 8
  store ptr %46, ptr %using34, align 8
  %47 = load i64, ptr %end_padding32, align 8
  store i64 %47, ptr %end_padding35, align 8
  store i64 16, ptr %.anon36, align 8
  %48 = load ptr, ptr %using34, align 8
  %49 = load i64, ptr %.anon36, align 8
  %50 = load i64, ptr %end_padding35, align 8
  %add39 = add i64 %49, %50
  store i64 %add39, ptr %size38, align 8
  %51 = getelementptr inbounds %Allocator, ptr %48, i32 0, i32 0
  %52 = load ptr, ptr %51, align 8
  %53 = load i64, ptr %size38, align 8
  %54 = call i64 %52(ptr %retparam41, ptr %48, i64 %53, i64 0, i64 0, ptr null, i32 0)
  %not_err42 = icmp eq i64 %54, 0
  %55 = call i1 @llvm.expect.i1(i1 %not_err42, i1 true)
  br i1 %55, label %after_check44, label %assign_optional43

assign_optional43:                                ; preds = %if.then22
  store i64 %54, ptr %error_var33, align 8
  br label %panic_block45

after_check44:                                    ; preds = %if.then22
  %56 = load ptr, ptr %retparam41, align 8
  br label %noerr_block48

panic_block45:                                    ; preds = %assign_optional43
  %57 = insertvalue %any undef, ptr %error_var33, 0
  %58 = insertvalue %any %57, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %59 = getelementptr inbounds [1 x %any], ptr %varargslots46, i64 0, i64 0
  store %any %58, ptr %59, align 16
  %60 = insertvalue %"any[]" undef, ptr %varargslots46, 0
  %61 = insertvalue %"any[]" %60, i64 1, 1
  store %"any[]" %61, ptr %indirectarg47, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7, i32 200, ptr byval(%"any[]") align 8 %indirectarg47)
  unreachable

noerr_block48:                                    ; preds = %after_check44
  store ptr %56, ptr %temp30, align 8
  %62 = load ptr, ptr %temp30, align 8
  %not49 = icmp eq ptr %62, null
  br i1 %not49, label %if.then50, label %if.exit51

if.then50:                                        ; preds = %noerr_block48
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var28, align 8
  br label %guard_block52

if.exit51:                                        ; preds = %noerr_block48
  %63 = load ptr, ptr %temp30, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %63, ptr align 8 %value29, i32 16, i1 false)
  br label %noerr_block53

guard_block52:                                    ; preds = %if.then50
  %64 = load i64, ptr %error_var28, align 8
  ret i64 %64

noerr_block53:                                    ; preds = %if.exit51
  %65 = load ptr, ptr %temp30, align 8
  store ptr %65, ptr %44, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value26, ptr align 8 %literal27, i32 8, i1 false)
  %66 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %66, ptr %using55, align 8
  store i64 0, ptr %end_padding56, align 8
  %67 = load ptr, ptr %using55, align 8
  store ptr %67, ptr %using58, align 8
  %68 = load i64, ptr %end_padding56, align 8
  store i64 %68, ptr %end_padding59, align 8
  store i64 8, ptr %.anon60, align 8
  %69 = load ptr, ptr %using58, align 8
  %70 = load i64, ptr %.anon60, align 8
  %71 = load i64, ptr %end_padding59, align 8
  %add63 = add i64 %70, %71
  store i64 %add63, ptr %size62, align 8
  %72 = getelementptr inbounds %Allocator, ptr %69, i32 0, i32 0
  %73 = load ptr, ptr %72, align 8
  %74 = load i64, ptr %size62, align 8
  %75 = call i64 %73(ptr %retparam65, ptr %69, i64 %74, i64 0, i64 0, ptr null, i32 0)
  %not_err66 = icmp eq i64 %75, 0
  %76 = call i1 @llvm.expect.i1(i1 %not_err66, i1 true)
  br i1 %76, label %after_check68, label %assign_optional67

assign_optional67:                                ; preds = %noerr_block53
  store i64 %75, ptr %error_var57, align 8
  br label %panic_block69

after_check68:                                    ; preds = %noerr_block53
  %77 = load ptr, ptr %retparam65, align 8
  br label %noerr_block72

panic_block69:                                    ; preds = %assign_optional67
  %78 = insertvalue %any undef, ptr %error_var57, 0
  %79 = insertvalue %any %78, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %80 = getelementptr inbounds [1 x %any], ptr %varargslots70, i64 0, i64 0
  store %any %79, ptr %80, align 16
  %81 = insertvalue %"any[]" undef, ptr %varargslots70, 0
  %82 = insertvalue %"any[]" %81, i64 1, 1
  store %"any[]" %82, ptr %indirectarg71, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7, i32 200, ptr byval(%"any[]") align 8 %indirectarg71)
  unreachable

noerr_block72:                                    ; preds = %after_check68
  store ptr %77, ptr %temp54, align 8
  %83 = load ptr, ptr %temp54, align 8
  %not73 = icmp eq ptr %83, null
  br i1 %not73, label %if.then74, label %if.exit75

if.then74:                                        ; preds = %noerr_block72
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var25, align 8
  br label %guard_block76

if.exit75:                                        ; preds = %noerr_block72
  %84 = load ptr, ptr %temp54, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %84, ptr align 8 %value26, i32 8, i1 false)
  br label %noerr_block77

guard_block76:                                    ; preds = %if.then74
  %85 = load i64, ptr %error_var25, align 8
  ret i64 %85

noerr_block77:                                    ; preds = %if.exit75
  %86 = load ptr, ptr %temp54, align 8
  store ptr %86, ptr %43, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal24, i32 8, i1 false)
  ret i64 0

if.exit78:                                        ; preds = %if.exit19
  %87 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %88 = load i64, ptr %87, align 8
  %trunc = trunc i64 %88 to i32
  %89 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %90 = load ptr, ptr %89, align 8
  %91 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr null, i64 0, ptr @.str.6, i32 %trunc, ptr %90)
  store i32 %91, ptr %len, align 4
  %92 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %92, ptr %using79, align 8
  store i64 0, ptr %end_padding80, align 8
  %93 = load ptr, ptr %using79, align 8
  store ptr %93, ptr %using82, align 8
  %94 = load i64, ptr %end_padding80, align 8
  store i64 %94, ptr %end_padding83, align 8
  %95 = load i32, ptr %len, align 4
  %add85 = add i32 %95, 1
  store i32 %add85, ptr %.anon84, align 4
  %96 = load ptr, ptr %using82, align 8
  %97 = load i32, ptr %.anon84, align 4
  %sext = sext i32 %97 to i64
  %98 = load i64, ptr %end_padding83, align 8
  %add87 = add i64 %sext, %98
  store i64 %add87, ptr %size86, align 8
  %99 = getelementptr inbounds %Allocator, ptr %96, i32 0, i32 0
  %100 = load ptr, ptr %99, align 8
  %101 = load i64, ptr %size86, align 8
  %102 = call i64 %100(ptr %retparam88, ptr %96, i64 %101, i64 0, i64 0, ptr null, i32 0)
  %not_err89 = icmp eq i64 %102, 0
  %103 = call i1 @llvm.expect.i1(i1 %not_err89, i1 true)
  br i1 %103, label %after_check91, label %assign_optional90

assign_optional90:                                ; preds = %if.exit78
  store i64 %102, ptr %error_var81, align 8
  br label %panic_block92

after_check91:                                    ; preds = %if.exit78
  %104 = load ptr, ptr %retparam88, align 8
  br label %noerr_block95

panic_block92:                                    ; preds = %assign_optional90
  %105 = insertvalue %any undef, ptr %error_var81, 0
  %106 = insertvalue %any %105, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %107 = getelementptr inbounds [1 x %any], ptr %varargslots93, i64 0, i64 0
  store %any %106, ptr %107, align 16
  %108 = insertvalue %"any[]" undef, ptr %varargslots93, 0
  %109 = insertvalue %"any[]" %108, i64 1, 1
  store %"any[]" %109, ptr %indirectarg94, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7, i32 200, ptr byval(%"any[]") align 8 %indirectarg94)
  unreachable

noerr_block95:                                    ; preds = %after_check91
  store ptr %104, ptr %str, align 8
  %110 = load ptr, ptr %str, align 8
  %not96 = icmp eq ptr %110, null
  br i1 %not96, label %if.then97, label %if.exit98

if.then97:                                        ; preds = %noerr_block95
  ret i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64)

if.exit98:                                        ; preds = %noerr_block95
  %111 = load ptr, ptr %str, align 8
  %112 = load i32, ptr %len, align 4
  %sext99 = sext i32 %112 to i64
  %add100 = add i64 %sext99, 1
  %113 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %114 = load i64, ptr %113, align 8
  %trunc101 = trunc i64 %114 to i32
  %115 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %116 = load ptr, ptr %115, align 8
  %117 = call i32 (ptr, i64, ptr, ...) @snprintf(ptr %111, i64 %add100, ptr @.str.7, i32 %trunc101, ptr %116)
  %118 = getelementptr inbounds %Doc, ptr %literal103, i32 0, i32 0
  store ptr null, ptr %literal106, align 8
  %119 = getelementptr inbounds %Head, ptr %literal106, i32 0, i32 0
  %120 = load ptr, ptr %str, align 8
  %121 = load i32, ptr %len, align 4
  %sub = sub i32 %121, 1
  %sext109 = sext i32 %sub to i64
  %122 = add i64 %sext109, 1
  %size110 = sub i64 %122, 0
  %ptroffset111 = getelementptr inbounds i8, ptr %120, i64 0
  %123 = insertvalue %"char[]" undef, ptr %ptroffset111, 0
  %124 = insertvalue %"char[]" %123, i64 %size110, 1
  store %"char[]" %124, ptr %value108, align 8
  %125 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %125, ptr %using113, align 8
  store i64 0, ptr %end_padding114, align 8
  %126 = load ptr, ptr %using113, align 8
  store ptr %126, ptr %using116, align 8
  %127 = load i64, ptr %end_padding114, align 8
  store i64 %127, ptr %end_padding117, align 8
  store i64 16, ptr %.anon118, align 8
  %128 = load ptr, ptr %using116, align 8
  %129 = load i64, ptr %.anon118, align 8
  %130 = load i64, ptr %end_padding117, align 8
  %add121 = add i64 %129, %130
  store i64 %add121, ptr %size120, align 8
  %131 = getelementptr inbounds %Allocator, ptr %128, i32 0, i32 0
  %132 = load ptr, ptr %131, align 8
  %133 = load i64, ptr %size120, align 8
  %134 = call i64 %132(ptr %retparam123, ptr %128, i64 %133, i64 0, i64 0, ptr null, i32 0)
  %not_err124 = icmp eq i64 %134, 0
  %135 = call i1 @llvm.expect.i1(i1 %not_err124, i1 true)
  br i1 %135, label %after_check126, label %assign_optional125

assign_optional125:                               ; preds = %if.exit98
  store i64 %134, ptr %error_var115, align 8
  br label %panic_block127

after_check126:                                   ; preds = %if.exit98
  %136 = load ptr, ptr %retparam123, align 8
  br label %noerr_block130

panic_block127:                                   ; preds = %assign_optional125
  %137 = insertvalue %any undef, ptr %error_var115, 0
  %138 = insertvalue %any %137, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %139 = getelementptr inbounds [1 x %any], ptr %varargslots128, i64 0, i64 0
  store %any %138, ptr %139, align 16
  %140 = insertvalue %"any[]" undef, ptr %varargslots128, 0
  %141 = insertvalue %"any[]" %140, i64 1, 1
  store %"any[]" %141, ptr %indirectarg129, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7, i32 200, ptr byval(%"any[]") align 8 %indirectarg129)
  unreachable

noerr_block130:                                   ; preds = %after_check126
  store ptr %136, ptr %temp112, align 8
  %142 = load ptr, ptr %temp112, align 8
  %not131 = icmp eq ptr %142, null
  br i1 %not131, label %if.then132, label %if.exit133

if.then132:                                       ; preds = %noerr_block130
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var107, align 8
  br label %guard_block134

if.exit133:                                       ; preds = %noerr_block130
  %143 = load ptr, ptr %temp112, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %143, ptr align 8 %value108, i32 16, i1 false)
  br label %noerr_block135

guard_block134:                                   ; preds = %if.then132
  %144 = load i64, ptr %error_var107, align 8
  ret i64 %144

noerr_block135:                                   ; preds = %if.exit133
  %145 = load ptr, ptr %temp112, align 8
  store ptr %145, ptr %119, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %value105, ptr align 8 %literal106, i32 8, i1 false)
  %146 = load ptr, ptr @std.core.mem.thread_allocator, align 8
  store ptr %146, ptr %using137, align 8
  store i64 0, ptr %end_padding138, align 8
  %147 = load ptr, ptr %using137, align 8
  store ptr %147, ptr %using140, align 8
  %148 = load i64, ptr %end_padding138, align 8
  store i64 %148, ptr %end_padding141, align 8
  store i64 8, ptr %.anon142, align 8
  %149 = load ptr, ptr %using140, align 8
  %150 = load i64, ptr %.anon142, align 8
  %151 = load i64, ptr %end_padding141, align 8
  %add145 = add i64 %150, %151
  store i64 %add145, ptr %size144, align 8
  %152 = getelementptr inbounds %Allocator, ptr %149, i32 0, i32 0
  %153 = load ptr, ptr %152, align 8
  %154 = load i64, ptr %size144, align 8
  %155 = call i64 %153(ptr %retparam147, ptr %149, i64 %154, i64 0, i64 0, ptr null, i32 0)
  %not_err148 = icmp eq i64 %155, 0
  %156 = call i1 @llvm.expect.i1(i1 %not_err148, i1 true)
  br i1 %156, label %after_check150, label %assign_optional149

assign_optional149:                               ; preds = %noerr_block135
  store i64 %155, ptr %error_var139, align 8
  br label %panic_block151

after_check150:                                   ; preds = %noerr_block135
  %157 = load ptr, ptr %retparam147, align 8
  br label %noerr_block154

panic_block151:                                   ; preds = %assign_optional149
  %158 = insertvalue %any undef, ptr %error_var139, 0
  %159 = insertvalue %any %158, i64 ptrtoint (ptr @"$ct.anyfault" to i64), 1
  %160 = getelementptr inbounds [1 x %any], ptr %varargslots152, i64 0, i64 0
  store %any %159, ptr %160, align 16
  %161 = insertvalue %"any[]" undef, ptr %varargslots152, 0
  %162 = insertvalue %"any[]" %161, i64 1, 1
  store %"any[]" %162, ptr %indirectarg153, align 8
  call void @std.core.builtin.panicf(ptr @.panic_msg, i64 36, ptr @.file, i64 6, ptr @.func, i64 7, i32 200, ptr byval(%"any[]") align 8 %indirectarg153)
  unreachable

noerr_block154:                                   ; preds = %after_check150
  store ptr %157, ptr %temp136, align 8
  %163 = load ptr, ptr %temp136, align 8
  %not155 = icmp eq ptr %163, null
  br i1 %not155, label %if.then156, label %if.exit157

if.then156:                                       ; preds = %noerr_block154
  store i64 ptrtoint (ptr @"test.ReadError$OUT_OF_MEMORY" to i64), ptr %error_var104, align 8
  br label %guard_block158

if.exit157:                                       ; preds = %noerr_block154
  %164 = load ptr, ptr %temp136, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %164, ptr align 8 %value105, i32 8, i1 false)
  br label %noerr_block159

guard_block158:                                   ; preds = %if.then156
  %165 = load i64, ptr %error_var104, align 8
  ret i64 %165

noerr_block159:                                   ; preds = %if.exit157
  %166 = load ptr, ptr %temp136, align 8
  store ptr %166, ptr %118, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %0, ptr align 8 %literal103, 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
  %9 = getelementptr inbounds %Summary, ptr %literal, i32 0, i32 0
  store ptr null, ptr %9, align 8
  %10 = getelementptr inbounds %Summary, ptr %literal, i32 0, i32 1
  store i8 0, ptr %10, align 8
  %11 = load %Summary, ptr %literal, align 8
  br label %phi_block

phi_block:                                        ; preds = %else_block, %after_check
  %val = phi %Summary [ %8, %after_check ], [ %11, %else_block ]
  store %Summary %val, ptr %taddr, align 8
  %12 = load { ptr, i8 }, ptr %taddr, align 8
  ret { ptr, i8 } %12
}

; 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.8, i64 4 }, %"char[]" { ptr @.str.9, 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.10

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.11

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.12

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

switch.default:                                   ; preds = %next_if6
  ret ptr @.str.13
}

; 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
  %0 = getelementptr inbounds [5 x %"char[]"], ptr %literal, i64 0, i64 0
  store %"char[]" { ptr @.str.14, i64 4 }, ptr %0, align 8
  %1 = getelementptr inbounds [5 x %"char[]"], ptr %literal, i64 0, i64 1
  store %"char[]" { ptr @.str.15, i64 11 }, ptr %1, align 8
  %2 = getelementptr inbounds [5 x %"char[]"], ptr %literal, i64 0, i64 2
  store %"char[]" { ptr @.str.16, i64 13 }, ptr %2, align 8
  %3 = getelementptr inbounds [5 x %"char[]"], ptr %literal, i64 0, i64 3
  store %"char[]" { ptr @.str.17, i64 12 }, ptr %3, align 8
  %4 = getelementptr inbounds [5 x %"char[]"], ptr %literal, i64 0, i64 4
  store %"char[]" { ptr @.str.18, i64 4 }, ptr %4, align 8
  %5 = insertvalue %"char[][]" undef, ptr %literal, 0
  %6 = insertvalue %"char[][]" %5, i64 5, 1
  store %"char[][]" %6, ptr %URLS, align 8
  %7 = getelementptr inbounds %"char[][]", ptr %URLS, i32 0, i32 1
  %8 = load i64, ptr %7, align 8
  store i64 %8, ptr %.anon, align 8
  store i64 0, ptr %.anon1, align 8
  br label %loop.cond

loop.cond:                                        ; preds = %phi_block16, %entry
  %9 = load i64, ptr %.anon1, align 8
  %10 = load i64, ptr %.anon, align 8
  %lt = icmp ult i64 %9, %10
  br i1 %lt, label %loop.body, label %loop.exit

loop.body:                                        ; preds = %loop.cond
  %11 = getelementptr inbounds %"char[][]", ptr %URLS, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8
  %13 = load i64, ptr %.anon1, align 8
  %ptroffset = getelementptr inbounds %"char[]", ptr %12, i64 %13
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %url, ptr align 8 %ptroffset, i32 16, i1 false)
  %14 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %15 = load i64, ptr %14, align 8
  %trunc = trunc i64 %15 to i32
  %16 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %17 = load ptr, ptr %16, align 8
  %18 = call i32 (ptr, ...) @printf(ptr @.str.19, i32 %trunc, ptr %17)
  %19 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo = load ptr, ptr %19, align 8
  %20 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi = load i64, ptr %20, align 8
  %21 = call { ptr, i8 } @test.readAndBuildSummary(ptr %lo, i64 %hi)
  store { ptr, i8 } %21, ptr %result, align 8
  call void @llvm.memcpy.p0.p0.i32(ptr align 8 %summary, ptr align 8 %result, i32 16, i1 false)
  %22 = call i32 (ptr, ...) @printf(ptr @.str.20)
  %23 = load ptr, ptr @__stdoutp, align 8
  call void @test.Summary.print(ptr %summary, ptr %23)
  %24 = call i32 (ptr, ...) @printf(ptr @.str.21)
  %25 = getelementptr inbounds %Summary, ptr %summary, i32 0, i32 0
  %26 = load ptr, ptr %25, align 8
  %ptrbool = icmp ne ptr %26, null
  br i1 %ptrbool, label %cond.lhs, label %cond.rhs

cond.lhs:                                         ; preds = %loop.body
  %27 = getelementptr inbounds %Summary, ptr %summary, i32 0, i32 0
  %28 = load ptr, ptr %27, align 8
  %29 = load %"char[]", ptr %28, 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[]" [ %29, %cond.lhs ], [ zeroinitializer, %cond.rhs ]
  store %"char[]" %val, ptr %title_sure, align 8
  %30 = getelementptr inbounds %"char[]", ptr %title_sure, i32 0, i32 1
  %31 = load i64, ptr %30, align 8
  %trunc2 = trunc i64 %31 to i32
  %32 = getelementptr inbounds %"char[]", ptr %title_sure, i32 0, i32 0
  %33 = load ptr, ptr %32, align 8
  %34 = call i32 (ptr, ...) @printf(ptr @.str.22, i32 %trunc2, ptr %33)
  %35 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 0
  %lo3 = load ptr, ptr %35, align 8
  %36 = getelementptr inbounds %"char[]", ptr %url, i32 0, i32 1
  %hi4 = load i64, ptr %36, align 8
  %37 = call i64 @test.readWhetherTitleNonEmpty(ptr %retparam, ptr %lo3, i64 %hi4)
  %not_err = icmp eq i64 %37, 0
  %38 = call i1 @llvm.expect.i1(i1 %not_err, i1 true)
  br i1 %38, label %after_check, label %assign_optional

assign_optional:                                  ; preds = %cond.phi
  store i64 %37, ptr %has_title.f, align 8
  br label %after_assign

after_check:                                      ; preds = %cond.phi
  %39 = load i8, ptr %retparam, align 1
  store i8 %39, 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
  %40 = call i1 @llvm.expect.i1(i1 %not_err5, i1 true)
  br i1 %40, label %after_check6, label %else_block

after_check6:                                     ; preds = %after_assign
  %41 = load i8, ptr %has_title, align 1
  %42 = call ptr @test.bool_to_string(i8 zeroext %41)
  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
  %43 = call i1 @llvm.expect.i1(i1 %not_err8, i1 true)
  br i1 %43, 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
  %44 = load i64, ptr %f, align 8
  %neq = icmp ne i64 %44, 0
  br i1 %neq, label %if.then, label %if.exit

if.then:                                          ; preds = %end_block
  %45 = load i64, ptr %f, align 8
  store i64 %45, 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
  %46 = load i64, ptr %blockret, align 8
  %47 = call ptr @test.nameFromError(i64 %46)
  br label %phi_block

phi_block:                                        ; preds = %expr_block.exit, %after_check6
  %val11 = phi ptr [ %42, %after_check6 ], [ %47, %expr_block.exit ]
  %optval12 = load i64, ptr %has_title.f, align 8
  %not_err13 = icmp eq i64 %optval12, 0
  %48 = call i1 @llvm.expect.i1(i1 %not_err13, i1 true)
  br i1 %48, label %after_check14, label %else_block15

after_check14:                                    ; preds = %phi_block
  %49 = load i8, ptr %has_title, align 1
  %50 = trunc i8 %49 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 [ %50, %after_check14 ], [ false, %else_block15 ]
  %ternary = select i1 %val17, ptr @.str.24, ptr @.str.25
  %51 = call i32 (ptr, ...) @printf(ptr @.str.23, ptr %val11, ptr %ternary)
  %52 = load i64, ptr %.anon1, align 8
  %add = add i64 %52, 1
  store i64 %add, ptr %.anon1, align 8
  br label %loop.cond

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