Forgot to commit ChangeLog for rest of hot/cold partitioning update patch.

From-SVN: r86190

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 89ce5f380fc95f06c121e97ff00b017442b7dd8c..3bb39234550d8af14fc6928adac2c150c300893b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,100 @@
+2004-08-18  Caroline Tice  <ctice@apple.com>
+
+        * Makefile.in (STAGEFEEDBACK_FLAGS_TO_PASS) Add
+       "-freorder-blocks-and-partition" to the flags used in second
+       stage of profiledbootstrap.
+       * bb-reorder.c (push_to_next_round_p): Add new variable,
+       next_round_is_last; set and use variable to make sure, when
+       partitioning, that the last trace construction round consists
+       of all (and only) cold basic blocks.
+       (rotate_loop): Don't copy blocks that end in a section
+       crossing jump.
+       (copy_bb): Correctly initialize "partition" of duplicated bb.
+       (add_unlikely_executed_notes): Add a comment.
+       (find_rarely_executed_basic_blocks_and_crossing_edges): Modify
+       to make sure, if function contains hot blocks, that the
+       successors of ENTRY_BLOCK_PTR are hot; also, only look for
+       crossing edges if the architecture supports named sections.
+       (mark_bb_for_unlikely_executed_section): Modify to always
+       insert the NOTE_INSN_UNLIKELY_EXECUTED_CODE immediately after
+       the basic block note insn.
+       (fix_crossing_unconditional_branches): Remove extra space.
+       (fix_edges_for_rarely_executed_code): Modify to only do
+       partitioning work if the architecture supports named sections.
+       (reorder_basic_blocks): Modify to only add
+       NOTE_INSN_UNLIKELY_EXECUTED_CODE notes if the architecture
+       supports named sections.
+       * c-common.c (handle_section_attribute): Initialize new global
+       variable, user_defined_section_attribute, to true if user has
+       specified one.
+       * cfgcleanup.c (try_forward_edges): Modify to not attempt to
+       forward edges that cross section boundaries.
+       * cfglayout.c (fixup_reorder_chain): Modify to only fix up
+       partitioning information if the architecture supports named
+       sections.
+       * cfgrtl.c (target.h): Add statement to include this.
+       (rtl_split_block): Make sure newly created bb gets correct
+       partition.
+       (try_redirect_by_replacing_jump): Make sure redirection isn't
+       attempting to cross section boundaries.
+       (force_nonfallthru_and_redirect): Only do partition fix up if
+       architecture supports named sections.
+       (rtl_split_edge): Make sure newly created bb ends up in
+       correct partition.
+       (commit_one_edge_insertion): Remove code that incorrectly
+       updated basic block partition; Make sure partition fix up only
+       happens if architecture supports named sections and it's not
+       already done.
+       (rtl_verify_flow_info_1): Fix if-condition on test/error
+       condition that fallthru edges are not allowed to cross section
+       boundaries.
+       * defaults.h (NORMAL_TEXT_SECTION_NAME): Remove this.
+       * final.c (final_scan_insn): Remove redundant test from if-statement;
+       change calls to text_section into calls to function_section; add code
+       to only to partitioning fix up if architecture supports named
+       sections.
+       * ifcvt.c (find_if_case_1): Make sure newly created bb has correct
+       partition.
+       (if_convert): Add targetm.have_named_sections to test.
+       * output.h (unlikely_section_label): Extern declaration for new global
+       variable.
+       (unlikely_text_section_name): Likewise.
+       * opts.c (decode_options): If both partitioning and DWARF debugging
+       are turned on, issue a warning that this doesn't work, and change
+       partitiong to basic block reordering (without hot/cold partitions).
+       * passes.c (rest_of_handle_final): Re-set new global variable, 
+       user_defined_section_attribute, to false.
+       (rest_of_compilation): Change options for calling partitioning
+       function: Don't call if the user defined the section attribute, and
+       don't call if DECL_ONE_ONLY is true for the current function.
+       * predict.c (choose_function_section): Return immediately if we
+       are doing hot/cold partitioning (i.e. let the basic block partitioning
+       determine where the function belongs).
+       * reg-stack.c (emit_swap_insn): Add condition to step over
+       NOTE_INSN_UNLIKELY_EXECUTED_CODE notes.
+       * toplev.c (user_defined_section_attribute): New global variable.
+       * toplev.h (user_defined_section_attribute): Extern declaration for new
+       global variable.
+       * varasm.c (unlikely_section_label): New global variable.
+       (unlikely_text_section_name): New global variable.
+       (unlikely_text_section): Add code to initialize unlikely_text_section_name
+       if necessary; modify to use unlikely_text_section_name and 
+       unlikely_section_label; also to use named_section properly.
+       (in_unlikely_text_section):  Modify to work correctly with named_section
+       and to use unlikely_text_section_name.
+       (named_section):  Add code to work properly with cold section.
+       (function_section): Clean up if-statement.
+       * config/darwin.c (darwin_asm_named_section): Return to original code,
+       removing use of SECTION_FORMAT_STRING.
+       * config/arm/pe.h (switch_to_section):  Add case for 
+       in_unlikely_executed_text to switch statement.
+       * config/i386/cygming.h (switch_to_section): Likewise.
+       * config/i386/darwin.h (NORMAL_TEXT_SECTION_NAME): Remove.
+       (SECTION_FORMAT_STRING): Likewise.
+       * config/mcore/mcore.h (switch_to_section): Likewise.
+       * config/rs6000/darwin.h (NORMAL_TEXT_SECTION_NAME): Remove.
+       (SECTION_FORMAT_STRING): Remove.
+
 2004-08-18  Roger Sayle  <roger@eyesopen.com>
 
        * config/i386/i386.h (FIXED_REGISTERS): Update encoding to be