Re: patch to implement thread coloring in IRA

[Vladimir Makarov]

On 11/13/2013, 8:34 PM, Ulrich Weigand wrote:

Vladimir Makarov wrote:

      PR rtl-optimization/59036
          * ira-color.c (struct allocno_color_data): Add new members
          first_thread_allocno, next_thread_allocno, thread_freq.
          (sorted_copies): New static var.
          (allocnos_conflict_by_live_ranges_p, copy_freq_compare_func): Move
          up.
          (allocno_thread_conflict_p, merge_threads)
          (form_threads_from_copies, form_threads_from_bucket)
          (form_threads_from_colorable_allocno, init_allocno_threads): New
          functions.
          (bucket_allocno_compare_func): Add comparison by thread frequency
          and threads.
          (add_allocno_to_ordered_bucket): Rename to
          add_allocno_to_ordered_colorable_bucket.  Remove parameter.
          (push_only_colorable): Call form_threads_from_bucket.
          (color_pass): Call init_allocno_threads.  Use
          consideration_allocno_bitmap instead of coloring_allocno_bitmap
          for nuillify allocno color data.
          (ira_initiate_assign, ira_finish_assign): Allocate/free
          sorted_copies.
          (coalesce_allocnos): Use static sorted copies.

Unfortunately, this patch causes cc1 for powerpc64-linux to crash for me
even when compiling "int main () { return 0; }" with -O due to a memory
corruption somewhere:

I've just fixed it, Ulrich.  Really sorry for inconvenience.