65b7473beb
This allows DWARF debugging output to use the common register mneumonics, such as ra, sp, or t0. DWARF registers 0-31 are mapped to the 32 general purpose registers, which are then followed by the 32 floating point registers. Reviewed by: markj Approved by: markj (mentor) MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D20779