mirror of git://gcc.gnu.org/git/gcc.git
3371a64f00
2013-06-06 Teresa Johnson <tejohnson@google.com> PR c++/53743 * ifcvt.c (find_if_case_1): Replace BB_COPY_PARTITION with assert as this is now done by redirect_edge_and_branch_force. * function.c (thread_prologue_and_epilogue_insns): Insert new bb after barriers, and fix interaction with splitting. * emit-rtl.c (try_split): Copy REG_CROSSING_JUMP notes. * cfgcleanup.c (try_forward_edges): Fix early return value to properly reflect changes made in the routine. * bb-reorder.c (emit_barrier_after_bb): Move to cfgrtl.c. (fix_up_fall_thru_edges): Remove incorrect check for bb layout order since this is called in cfglayout mode, and replace partition fixup with assert as that is now done by force_nonfallthru_and_redirect. (add_reg_crossing_jump_notes): Handle the fact that some jumps may already be marked with region crossing note. (insert_section_boundary_note): Make non-static, gate on flag has_bb_partition, rewrite to also check for multiple partitions. (rest_of_handle_reorder_blocks): Remove call to insert_section_boundary_note, now done later during free_cfg. (duplicate_computed_gotos): Don't duplicate partition crossing edge. * bb-reorder.h (insert_section_boundary_note): Declare. * Makefile.in (cfgrtl.o): Depend on bb-reorder.h * cfgrtl.c (rest_of_pass_free_cfg): If partitions exist invoke insert_section_boundary_note. (try_redirect_by_replacing_jump): Remove unnecessary check for region crossing note. (fixup_partition_crossing): New function. (rtl_redirect_edge_and_branch): Fixup partition boundaries. (emit_barrier_after_bb): Move here from bb-reorder.c, handle insertion in non-cfglayout mode. (force_nonfallthru_and_redirect): Fixup partition boundaries, remove old code that tried to do this. Emit barrier correctly when we are in cfglayout mode. (last_bb_in_partition): New function. (rtl_split_edge): Correctly fixup partition boundaries. (commit_one_edge_insertion): Remove old code that tried to fixup region crossing edge since this is now handled in split_block, and set up insertion point correctly since block may now end in a jump. (verify_hot_cold_block_grouping): Guard against checking when not in linearized RTL mode. (rtl_verify_edges): Add checks for incorrect/missing REG_CROSSING_JUMP notes. (rtl_verify_flow_info_1): Move verify_hot_cold_block_grouping to rtl_verify_flow_info, so not called in cfglayout mode. (rtl_verify_flow_info): Move verify_hot_cold_block_grouping here. (fixup_reorder_chain): Remove old code that attempted to fixup region crossing note as this is now handled in force_nonfallthru_and_redirect. (duplicate_insn_chain): Don't duplicate switch section notes. (rtl_can_remove_branch_p): Remove unnecessary check for region crossing note. * basic-block.h (emit_barrier_after_bb): Declare. * testsuite/gcc.dg/tree-prof/va-arg-pack-1.c: Cloned from c-torture, made into -freorder-blocks-and-partition test. * testsuite/gcc.dg/tree-prof/comp-goto-1.c: Ditto. * testsuite/gcc.dg/tree-prof/20041218-1.c: Ditto. * testsuite/gcc.dg/tree-prof/pr52027.c: Use -O2. * testsuite/gcc.dg/tree-prof/pr50907.c: Ditto. * testsuite/gcc.dg/tree-prof/pr45354.c: Ditto. * testsuite/g++.dg/tree-prof/partition2.C: Ditto. * testsuite/g++.dg/tree-prof/partition3.C: Ditto. From-SVN: r199744 |
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