[Bug middle-end/60102] powerpc fp-bit ices at dwf_regno

[sandra at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60102

--- Comment #9 from Sandra Loosemore <sandra at codesourcery dot com> ---
I've been looking at this a little bit more.

DWARF_FRAME_REGNUM is specifically documented to take a hard register number as
its operand, so the assertion in dwf_regno is at least consistent with that. 
The one in dbx_reg_number is more dubious, since neither LEAF_REG_REMAP or
DBX_REGISTER_NUMBER are documented to require a hard register number.

So: either the powerpc backend is broken to be using a pseudo in this context,
or else the documentation for DWARF_FRAME_REGNUM should be changed to permit
this and the assertions (as necessary) moved into the target-specific
implementations of these macros.