I'm porting GCC to new processor.
It is almost done. Compiled well with -O options. However, I got
internal error message when i compile with '-g' option.
{{
fibo.c: In function ‘fibo’:
fibo.c:12: internal compiler error: in
compute_frame_pointer_to_fb_displacement, at dwarf2out.c:11187
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
}}
the line is
{{
gcc_assert (elim == (frame_pointer_needed ? hard_frame_pointer_rtx :
stack_pointer_rtx));
}}
so i printed elim and stack_pointer_rtx before execute this
function.(frame_pointer_needed was 0)
elim was (reg:SI 12 r12). r12 is sp register. and stack_pointer_rtx
was (reg/f:SI 12 r12).
I found reg/f means that it is frame related register. But i didn't
understand why my sp, which is elim in this function, is (reg:SI) not
(reg/f:SI).
does anyone know why this is happened?
-- Jabez Kim
