Bug 6502 – failing with -release -inline -noboundscheck

The following program fails when compiled with -release -inline -noboundscheck ------------- import std.process; void main() { } --------------- with the message: \cbx\mars\druntime\import\core\time.di(253): Error: template core.time.TickDuration.to(string units, T) if ((units == "seconds" || units == "msecs" || units == "usecs" || units == "hnsecs" || units == "nsecs") && (__traits(isIntegral,T) && T.sizeof >= 4)) does not match any function template declarat ion \cbx\mars\druntime\import\core\time.di(253): Error: template core.time.TickDuration.to(string units, T) if ((units == "seconds" || units == "msecs" || units == "usecs" || units == "hnsecs" || units == "nsecs") && (__traits(isIntegral,T) && T.sizeof >= 4)) cannot deduce template function from argument types !("seconds",long)() It is unclear if it is a druntime problem or a dmd bug.

There may very well be a druntime bug here, but I fail to see how something compiling with one set of flags and failing to compile with another could be anything other than a compiler bug (save for flags such as version which affect conditional compilation).

*** Issue 6671 has been marked as a duplicate of this issue. ***

bug 6488 seems very much the same issue. Please see my recent comment there. Summary: boils down to di file generation converting function templates to eponymous templates, that have problems matching template arguments when qualifiers are involved.

*** Issue 6824 has been marked as a duplicate of this issue. ***

*** This issue has been marked as a duplicate of issue 6488 ***