Repro of an internal compiler error in Visual Studio 2017 15.9.4

ice_vs_15.9.4.cpp

// compiled in x64, Release with:
// /std:c++latest /permissive- /arch:AVX2 /fp:except- /Qpar- /GF /GS- /O2 /Ot /fp:fast /Oy /openmp- /GL
// bug encountered using visual studio 2017 15.9.4 (_MSC_FULL_VER: 191627025)
#include <string_view>
#include <array>
#include <cstdint>

using namespace std::literals;

constexpr auto operator"" _u8(unsigned long long n) noexcept
{
	return static_cast<uint8_t>(n);
}

template <typename T>
constexpr bool __vectorcall Between(T value, T min, T max) noexcept
{
	return !(value < min || value > max);
}

constexpr bool IsDigit(char c) noexcept
{
	return Between(c, '0', '9');
}

constexpr bool IsHexadecimal(char c) noexcept
{
	return IsDigit(c)
		|| Between(c, 'a', 'f')
		|| Between(c, 'A', 'F');
}

constexpr uint8_t HexToByte(char c) noexcept
{
	if (IsDigit(c))
		return static_cast<uint8_t>(c - '0');
	else if (Between(c, 'a', 'f'))
		return static_cast<uint8_t>(c - 'a' + 10_u8);
	else if (Between(c, 'A', 'F'))
		return static_cast<uint8_t>(c - 'A' + 10_u8);
	return 255_u8;
}

struct Guid
{
	std::array<uint8_t, 16> Bytes;

	constexpr Guid() noexcept
		: Bytes{ { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } }
	{}

	template <typename STR>
	static constexpr bool TryParse(STR && str, Guid& output) noexcept
	{
		if (str.length() < 32u) //two hex characters per byte, ignoring punctuation etc.
			return false;

		Guid outVal;
		char last{};
		size_t index{};
		for (auto ch : str)
		{
			const auto ishex = IsHexadecimal(ch);
			if (!(ishex
				|| ch == '\t' || ch == ' '
				|| ch == ',' || ch == '-'
				|| ch == '{' || ch == '}'))
				return false;

			if (ishex)
			{
				if (!last)
					last = ch;
				else
				{
					outVal.Bytes[ParseIndices[index++]] = static_cast<uint8_t>((HexToByte(last) << 4) | HexToByte(ch));
					last = 0;
					if (index == 16)
					{
						output = outVal;
						return true;
					}
				}
			}
		}
		return false;
	}

	template <typename STR>
	static constexpr Guid Parse(STR && str) noexcept
	{
		Guid guid;
		TryParse(std::forward<STR>(str), guid);
		return guid;
	}

private:
	static constexpr std::array<size_t, 16> ParseIndices = { {
		3,2,1,0,
		5,4,
		7,6,
		8,9,10,11,12,13,14,15
	} };
};

struct AssetLibraryID final
{
	Guid ID;

	constexpr AssetLibraryID(const Guid& id) noexcept
		: ID{ id }
	{}
};

constexpr Guid operator"" _guid(const char* str, size_t len) noexcept
{
	return Guid::Parse(std::string_view{ str, len });
	
	// changing this function's implementation to this also fixes the issue:
	// auto view = std::string_view{ str, len };
	// return Guid::Parse(view);
}

//this will cause an ICE when whole program optimization (/GL) is enabled
inline constexpr auto assetLibID_constexpr = AssetLibraryID { "5C0C3B98-5E24-4319-83C0-1710A2C9353F"_guid };

int main()
{
	return 0;
}

/*
the compiler log for the error looks like this:

1>------ Build started: Project: wpo_guid_bug, Configuration: Release x64 ------
1>cl : Command line warning D9025 : overriding '/sdl' with '/GS-'
1>Main.cpp
1>Generating code
1>c:\users\marze\source\repos\wpo_guid_bug\main.cpp : fatal error C1001: An internal error has occurred in the compiler.
1>(compiler file 'd:\agent\_work\2\s\src\vctools\compiler\utc\src\p2\main.c', line 187)
1> To work around this problem, try simplifying or changing the program near the locations listed above.
1>Please choose the Technical Support command on the Visual C++
1> Help menu, or open the Technical Support help file for more information
1>  link!InvokeCompilerPassW()+0x4357e
1>
1>c:\users\marze\source\repos\wpo_guid_bug\main.cpp : fatal error C1001: An internal error has occurred in the compiler.
1>(compiler file 'd:\agent\_work\2\s\src\vctools\compiler\utc\src\p2\main.c', line 187)
1> To work around this problem, try simplifying or changing the program near the locations listed above.
1>Please choose the Technical Support command on the Visual C++
1> Help menu, or open the Technical Support help file for more information
1>  link!InvokeCompilerPassW()+0x4357e
1>
1>
1>LINK : fatal error LNK1000: Internal error during IMAGE::BuildImage
1>
1>  Version 14.16.27025.1
1>
1>  ExceptionCode            = C0000005
1>  ExceptionFlags           = 00000000
1>  ExceptionAddress         = 0FE7092E (0FBC0000) "C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\VC\Tools\MSVC\14.16.27023\bin\HostX86\x64\c2.dll"
1>  NumberParameters         = 00000002
1>  ExceptionInformation[ 0] = 00000000
1>  ExceptionInformation[ 1] = 00000034
1>
1>CONTEXT:
1>  Eax    = 00000000  Esp    = 010FE000
1>  Ebx    = 043073D4  Ebp    = 010FE034
1>  Ecx    = 00000000  Esi    = 043CB21C
1>  Edx    = 013A9010  Edi    = 05533EFC
1>  Eip    = 0FE7092E  EFlags = 00010246
1>  SegCs  = 00000023  SegDs  = 0000002B
1>  SegSs  = 0000002B  SegEs  = 0000002B
1>  SegFs  = 00000053  SegGs  = 0000002B
1>  Dr0    = 00000000  Dr3    = 00000000
1>  Dr1    = 00000000  Dr6    = 00000000
1>  Dr2    = 00000000  Dr7    = 00000000
1>Done building project "wpo_guid_bug.vcxproj" -- FAILED.
Build has been canceled.

*/