------- Comment #3 from sjackman at gmail dot com 2006-06-28 20:51 -------
I tried backporting thumb_compute_save_reg_mask from GCC 4.1.1 to GCC 4.0.3
without success. I'll try backporting this entire patch from svn.
2005-03-01 Nick Clifton <[EMAIL PROTECTED]>
* config/arm/arm.c (thumb_find_work_register): Check all of the
argument registers to see if they are free, and a couple of
special cases where the last argument register but can be proved
to be available during the function's prologue.
(print_multi_reg, arm_compute_save_reg0_reg12_mask,
output_return_instruction, emit_multi_reg_push, thumb_pushpop,
thumb_unexpanded_epilogue): Use unsigned long as the type for the
register bit-mask.
(thumb_compute_save_reg_mask): Likewise. Also use
thumb_find_work_register() to ensure that there is agreement about
which work register is going to be used in the prologue.
(thumb_output_function_prologue): Use unsigned long as the type
for the register bit-mask. Also delay pushing the link register if
other high registers are going to be pushed.
(thumb_compute_save_reg_mask, emit_multi_reg_push,
print_multi-reg, number_of_first_bit_set, thumb_pushpop): Remove
redundant prototypes.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28193
