why -mhitachi gives ICE for SH-coff toolchain [gcc 3.4]

[Jim Wilson]

Nitin Yewale wrote:
> 	why -mhitachi option generates ICE [http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14093]?
> 	The condition which generates ICE checks for the mode of function.

Actually, it fails because the two arguments to emit_move_insn have 
different modes.  There is a QImode dest and a SImode source.

It appears the problem is that FUNCTION_VALUE disagrees with 
TARGET_PROMOTE_FUNCTION_RETURN.  One says the function result is 
promoted, and the other says it isn't.  Probably FUNCTION_VALUE is 
wrong.  It probably needs a call to sh_promote_prototypes passing in the 
function type.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com