[Bug target/28193] config/arm/arm.c:3140 ICE

["sjackman at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- 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  <nickc@redhat.com>

        * 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.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28193