[Bug target/15718] [3.3 regression][alpha] ICE in subreg_hard_regno, at emit-rtl.c:928

[jbuck at gcc dot gnu dot org]

------- Additional Comments From jbuck at gcc dot gnu dot org  2004-06-02 01:03 -------
OK, I'll reluctantly accept leaving this as WONTFIX if people can help me
produce a release note saying how to avoid the bug.  

"Avoid passing __complex__ in a register" doesn't cut it, because the user
doesn't write "__complex__" or "register".

Consider g77.f-torture/execute/19990826-2.f .  In this case we have a simple
Fortran program that defines an inline function with a complex argument.
Evidently we have to tell Fortran users that they must never do this?

In short: what are the contexts in which a __complex__ is passed in a register
on the Alpha?  Are all such contexts broken?



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15718