xtensa: add --auto-litpools option

[deliverable/binutils-gdb.git] / gas / ChangeLog

diff --git a/gas/ChangeLog b/gas/ChangeLog
index aea5508bddc51cd44374bb574acc351632dec657..220047c9d6ef4dbbff364ea7524aacb27156ad42 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,40 @@
+2015-08-12  David Weatherford  <weath@cadence.com>
+
+       * config/tc-xtensa.c (struct litpool_frag, struct litpool_seg):
+       New structures.
+       (xtensa_maybe_create_literal_pool_frag): New function.
+       (litpool_seg_list, auto_litpools, auto_litpool_limit)
+       (litpool_buf, litpool_slotbuf): New static variables.
+       (option_auto_litpools, option_no_auto_litpools)
+       (option_auto_litpool_limit): New enum identifiers.
+       (md_longopts): Add entries for auto-litpools, no-auto-litpools
+       and auto-litpool-limit.
+       (md_parse_option): Handle option_auto_litpools,
+       option_no_auto_litpools and option_auto_litpool_limit.
+       (md_show_usage): Add help for --[no-]auto-litpools and
+       --auto-litpool-limit.
+       (xtensa_mark_literal_pool_location): Record a place for literal
+       pool with a call to xtensa_maybe_create_literal_pool_frag.
+       (get_literal_pool_location): Find highest priority literal pool
+       or convert candidate to literal pool when auto-litpools are used.
+       (xg_assemble_vliw_tokens): Create literal pool after jump
+       instruction.
+       (xtensa_check_frag_count): Create candidate literal pool every
+       auto_litpool_limit frags.
+       (xtensa_relax_frag): Add jump around literals to non-empty
+       literal pool.
+       (xtensa_move_literals): Estimate literal pool addresses and move
+       unreachable literals closer to their users, converting candidate
+       to literal pool if needed.
+       (xtensa_switch_to_non_abs_literal_fragment): Only emit error
+       about missing .literal_position in case auto-litpools are not
+       used.
+       * config/tc-xtensa.h (xtensa_relax_statesE): New relaxation
+       state: RELAX_LITERAL_POOL_CANDIDATE_BEGIN.
+       * doc/as.texinfo (Xtensa options):  Document --auto-litpools and
+       --no-auto-litpools options.
+       * doc/c-xtensa.texi (Xtensa options): Likewise.
+
 2015-08-12  Simon Dardis  <simon.dardis@imgtec.com>
 
        * config/tc-mips.c (move_register): Change to use 'or' only.