7043 – CTFE: ICE illegal reference value 0LU, only with -inline

import std.conv;
string demangleZSymbols(string sym)
{
		char[] res;
			try
				auto len = parse!uint(sym);
			catch (Exception e)
				sym = null;
		return cast(immutable) res;
}
pragma(msg, demangleZSymbols("8serenity9persister6Sqlite7__arrayZ"));
$ dmd -c -release -O -inline treemapgen.d
std/array.d(467): Error: CTFE internal error: illegal reference value 0LU
dmd: interpret.c:6244: void VarDeclaration::createRefValue(Expression*): Assertion `IsRefValueValid(newval)' failed.

Created attachment 1048 [details] 
withoutstd
Here's a reduced version not importing phobos. Don't know if that helps.

Reduced test case, requires -inline:
bool decode(S)(ref int x) {
 return true;
}
bool front(A)() {
 int i = 0;
 return decode!(char)(i);
}
static assert( is(typeof({ front!(int)(); }())) );
static assert ( front!(int)());

Further reduced. Still requires -inline.
bool bug7043(S)(ref int x) {
 return true;
}
static assert( { 
 int i = 0;
 return bug7043!(char)(i);
}() );

https://github.com/D-Programming-Language/dmd/commit/d0e793e0e62d3d11ab9c622e934388d16af51c3b
https://github.com/D-Programming-Language/dmd/commit/325e94c9354fd5d3e21a1976df83b78a2d3a1a41