How about this change, then? (I'm still testing the m32c change, too) 2008-01-09 DJ Delorie <[EMAIL PROTECTED]>
* doc/tm.texi (HARD_REGNO_NREGS): Note that this macro must not return zero. Index: doc/tm.texi =================================================================== --- doc/tm.texi (revision 131434) +++ doc/tm.texi (working copy) @@ -2076,13 +2076,15 @@ This section discusses the macros that d (specifically, which machine modes) each register can hold, and how many consecutive registers are needed for a given mode. @defmac HARD_REGNO_NREGS (@var{regno}, @var{mode}) A C expression for the number of consecutive hard registers, starting at register number @var{regno}, required to hold a value of mode [EMAIL PROTECTED] [EMAIL PROTECTED] This macro must never return zero, even if a register +cannot hold the requested mode - indicate that with HARD_REGNO_MODE_OK +and/or CANNOT_CHANGE_MODE_CLASS instead. On a machine where all registers are exactly one word, a suitable definition of this macro is @smallexample #define HARD_REGNO_NREGS(REGNO, MODE) \