* gcse.c (gcse_main): Avoid global optimizations if we have a
large number of basic blocks and the ratio of edges to blocks
is high.
(delete_null_pointer_checks): Likewise.
From-SVN: r29882
* Makefile.in (flow.o): Depend on TREE_H.
* basic-block.h (REG_SET_EQUAL_P): New.
(XOR_REG_SET): New.
(n_edges): Declare.
(free_regset_vector): Remove declaration.
(flow_delete_insn_chain): Declare.
(enum update_life_extent): New.
(update_life_info, count_or_remove_death_notes): Declare.
* combine.c (distribute_notes) [REG_DEAD]: Stop search at bb->head.
Verify register live at bb->global_live_at_start before adding USE.
* flow.c (HAVE_epilogue, HAVE_prologue): Provide default.
(CLEAN_ALLOCA): New.
(n_edges): New.
(PROP_*): New flags.
(find_basic_blocks_1): Use alloc_EXPR_LIST.
(clear_edges): Zero n_edges.
(make_edge): Increment n_edges.
(split_edge): Don't allocate bb->local_set. Increment n_edges.
(flow_delete_insn_chain): Export.
(delete_block): Decrement n_edges.
(merge_blocks_nomove): Likewise.
(life_analysis): Give life_analysis_1 PROP flags.
(verify_wide_reg_1, verify_wide_reg): New.
(verify_local_live_at_start): New.
(update_life_info): Rewrite to call into propogate_block.
(mark_reg): New.
(mark_regs_live_at_end): After reload, if epilogue as rtl,
always mark stack pointer. Conditionally mark PIC register.
After reload, mark call-saved registers, return regsiters.
(life_analysis_1): Accept PROP flags not remove_dead_code.
Call mark_regs_live_at_end before zeroing regs_ever_live.
Use calculate_global_regs_live. Copy global_live_at_end before
calling final propagate_block. Zero reg_next_use on exit.
(calculate_global_regs_live): New.
(allocate_bb_life_data): Don't allocate bb->local_set.
(init_regset_vector, free_regset_vector): Remove.
(propagate_block): Accept FLAGS not FINAL or REMOVE_DEAD_CODE.
Test flags before every operation. Warn if prologue/epilogue insn
would have been deleted.
(mark_set_regs, mark_set_1): Accept and use FLAGS.
Use alloc_EXPR_LIST.
(mark_used_regs): Accept and use FLAGS, not FINAL.
Remove special handling for RETURN.
(try_pre_increment): Use alloc_EXPR_LIST.
(dump_flow_info): Dump n_edges.
(unlink_insn_chain, split_hard_reg_notes): Remove.
(maybe_add_dead_note, maybe_add_dead_note_use): Remove.
(find_insn_with_note, new_insn_dead_notes): Remove.
(update_n_sets, sets_reg_or_subreg_1, sets_reg_or_subreg): Remove.
(maybe_remove_dead_notes, prepend_reg_notes): Remove.
(replace_insns): Remove.
(count_or_remove_death_notes): New.
(verify_flow_info): Abort on error after all checks.
(remove_edge): Decrement n_edges.
(remove_fake_edges): Tweek format.
* haifa-sched.c (schedule_insns): Use split_all_insns.
* output.h (update_life_info): Remove declaration.
* recog.c (split_all_insns): From the corpse of split_block_insns,
do the whole function block by block. Use update_life_info.
(recog_last_allowed_insn): New.
(recog_next_insn): Mind it.
(peephole2_optimize): Set it. Walk backwards through blocks.
Use update_life_info.
* rtl.h (update_flow_info, replace_insns): Remove declarations.
(split_all_insns): Declare.
* toplev.c (rest_of_compilation): Thread prologue before flow2.
Use split_all_insns.
* i386.md (or -1 peep2s): Disable.
From-SVN: r29877
* config/mips/mips.md (movstrsi+[123]) : Combine these into
a single pattern. Scrap the 'd' versions as unnecessary.
* config/mips/mips.md (tablejump_internal3,tablejump_mips161,
tablejump_mips162,tablejump_internal4): The operands to a
label_ref must be VOIDmode.
From-SVN: r29874
* Makefile.in (insn-recog.o): Depend on hard-reg-set.h and resource.h.
* alpha.h (ASM_OUTPUT_MI_THUNK): Pass the correct number of
arguments to `current_file_function_operand'.
* genrecog.c: Include hard-reg-set.h and resource.h in the
generated output file.
* real.c: Include tm_p.h.
cp:
* method.c: Include tm_p.h.
From-SVN: r29869
* pt.c (tsubst_expr): Set DECL_TEMPLATE_INSTANTIATED for a catch
paramter.
* semantics.c (expand_stmt): Don't pretend to have asmspecs for
local statics if we don't really have them.
* ir.texi: Improve documentation for STMT_EXPR. Describe
CLEANUP_POINT_EXPR.
From-SVN: r29863
* expr.c (expand_expr, TARGET_EXPR): Set TREE_USED sooner.
* c-decl.c (finish_struct): Use simpler method of
removing elements of a singly-linked list.
From-SVN: r29860
* class.c (build_vtable_entry_ref): Use finish_asm_stmt.
* class.c (finish_struct_1): Use simpler method of
removing elements of a singly-linked list which doesn't
lose for classes without data members.
From-SVN: r29859
During class file generation, generate_classfile occasionally writes
out a bunch of data and then skips backwards to fill in blanks. When
configured with --enable-checking, this patching up will often trip
the checking code. This change introduces UNSAFE_PUTx macros which
never use CHECK_PUT. These should only be used in cases we know
CHECK_PUT will fail.
From-SVN: r29854
* configure.in (GCJ): Define as "target-gcj", not "target/gcj"
when building Canadian cross.
(NATIVE): Don't define when cross-compiling.
From-SVN: r29848
* decl.c (grokdeclarator): Only warn about non-zero arrays if
!in_system_header (linux socketbits.h can give this for
__cmsg_data, which is using a GNU extension).
From-SVN: r29842
