Currently, the m68k port only defines A0_REG and SP_REG.
We could define more macros like these.
For example, D0_REG would be useful in FUNCTION_VALUE, LIBCALL_VALUE, and
FUNCTION_VALUE_REGNO_P.
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Summary: Use more register name macros in m68k port
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kazu at gcc dot gnu dot org
GCC target triplet: m68k-none-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28882