* function.c (assign_stack_temp_for_type): Clear best_p
when an exact match is found.
* i386.h (LOCAL_ALIGNMENT): Define.
* function.c (assign_stack_local, assign_outer_stack_local): Use it.
(assign_stack_temp_for_type): New function based on assign_stack_temp.
(assign_stack_temp): Call it.
(assign_temp): Use assign_stack_temp_for_type, not assign_stack_temp.
* stmt.c: Use assign_temp, not assign_stack_temp.
* tm.texi: Document LOCAL_ALIGNMENT.
From-SVN: r25143
* expr.c (MOVE_BY_PIECES_P): Define condition for deciding to use
move_by_pieces.
(MOVE_MAX_PIECES): Define maximum number of bytes to move at once.
(USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_DECREMENT): Define defaults.
(USE_STORE_POST_INCREMENT, USE_STORE_PRE_DECREMENT): Define defaults.
(move_by_pieces): Use new macros.
(emit_block_move): Use new macros.
(clear_by_pieces): Use new macros.
(clear_storage): Use new macros.
(emit_push_insn): Use new macros.
(expand_expr): Use new macros.
* config/sh/sh.h (USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_DECREMENT):
Define.
(USE_STORE_POST_INCREMENT, USE_STORE_PRE_DECREMENT): Define.
(MOVE_BY_PIECES_P): Define based on alignment and TARGET_SMALLCODE.
(MOVE_MAX_PIECES): move 8 bytes on SH4.
* tm.texi(MOVE_BY_PIECES_P, MOVE_MAX_PIECES, USE_LOAD_POST_INCREMENT,
USE_LOAD_PRE_DECREMENT, USE_STORE_POST_INCREMENT,
USE_STORE_PRE_DECREMENT): Describe new macros.
From-SVN: r24801
Thu Jan 21 14:13:31 1999 Vladimir N. Makarov <vmakarov@cygnus.com>
* varasm.c (output_constant_pool): Use floor_log2 instead of
exact_log2 for ASM_OUTPUT_ALIGN.
* stor-layout.c (layout_type): Do machine-dependent extra alignment.
* emit-rtl.c (operand_subword): Handle case when a subword outside
the operand.
* tm.texi (ROUND_TYPE_{SIZE,ALIGN}): More accurate descriptions of
the macros.
From-SVN: r24800
* regclass.c (init_reg_sets): Move code that calculates tables
dependent on reg_class_contents from here...
(init_reg_sets_1): To here.
From-SVN: r23858
* expr.c (STACK_BYTES): Delete unused macro.
* calls.c: Provide default for PREFERRED_STACK_BOUNDARY.
(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
(expand_call): Likewise.
(emit_library_call): Likewise.
(emit_library_call_value): Likewise.
* function.c: Provide default for PREFERRED_STACK_BOUNDARY.
(STACK_BYTES): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
* explow.c: Provide default for PREFERRED_STACK_BOUNDARY.
(round_push): Use PREFERRED_STACK_BOUNDARY, not STACK_BOUNDARY.
(allocate_dynamic_stack_space): Likewise.
* tm.texi (PREFERRED_STACK_BOUNDARY): Document new macro.
(STACK_BOUNDARY): Update description to reflect the new situation.
From-SVN: r23730
* flow.c (life_analysis_1): Do not clobber regs_ever_live after
reload. Never perform rescans of the insn chain after reload.
(propagate_block): Do not delete insn or create new autoinc addressing
modes after reload.
* jump.c (jump_optimize): Unconditionally use the code that was
previously conditional on PRESERVE_DEATH_INFO_REGNO_P.
* reload1.c (reload): When reloading is finished, delete all
REG_DEAD and REG_UNUSED notes.
(emit_reload_insns): Delete all code that was conditional on
PRESERVE_DEATH_INFO_REGNO_P.
(no_longer_dead_regs): Delete variable.
(reload_cse_delete_death_notes): Delete function.
(reload_cse_no_longer_dead): Delete function.
(reload_cse_regs_1): Delete all code to handle deletion of death
notes.
(reload_cse_noop_set_p): Likewise.
(reload_cse_simplify_set): Likewise.
(reload_cse_simplify_operands): Likewise.
(reload_cse_move2add): Likewise.
* reorg.c (used_spill_regs): Delete declaration.
(max_label_num_after_reload): Delete declaration.
(find_dead_or_set_registers): Don't assume that spill regs are
dead at a CODE_LABEL.
* rtlanal.c (dead_or_set_regno_p): Death notes are always accurate,
even after reload.
* sched.c (sched_analyze_insn): Likewise.
(update_flow_info): Likewise.
* haifa-sched.c (sched_analyze_insn): Likewise.
(update_flow_info): Likewise.
* tm.texi (PRESERVE_DEATH_INFO_REGNO_P): Delete documentation.
* toplev.c (max_label_num_after_reload): Delete variable.
(rest_of_compilation): Don't set max_label_num_after_reload.
Call life_analysis after reload_cse_regs if optimizing.
* config/gmicro/gmicro.h: Delete comment referring to
PRESERVE_DEATH_INFO_REGNO_P.
* config/i386/i386.h: Likewise.
* config/m88k/m88k.h: Likewise.
* config/m32r/m32r.h (PRESERVE_DEATH_INFO_REGNO_P): Delete definition.
* config/sh/sh.h: Likewise.
Accurate REG_DEAD notes after reload.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r23120
* expr.c (expand_expr): Change ">" to ">=" making MOVE_RATIO use
consistent.
* tm.texi (Costs): Say MOVE_RATIO is number of mem-mem move
*sequences* *below* which scalar moves will be used.
From-SVN: r22107
* tm.texi (Caller Saves): Say that DEFAULT_CALLER_SAVES has no
effect when -O2 and higher.
* invoke.texi (Optimize Options): Likewise for -fcaller-saves.
From-SVN: r21848
* pa.h (LEGITIMIZE_RELOAD_ADDRESS): Handle addresses created by
LEGITIMIZE_RELOAD_ADDRESS.
* tm.texi (LEGITIMIZE_RELOAD_ADDRESS): Note that this macro must be
able to handle addresses created by previous invocations of the macro.
From-SVN: r21014
* expr.h (STACK_SIZE_MODE): New macro.
* explow.c (allocate_dynamic_stack_space): Use it for
mode of allocate_stack pattern increment operand.
* tm.texi (STACK_SAVEAREA_MODE, STACK_SIZE_MODE): Document.
* md.texi (stack_save_block, ...): Reflect use of macro.
* rs6000.h (PROMOTE_MODE): Always promote to word_mode.
(PROMOTE_FUNCTION_ARGS): Define.
(PROMOTE_FUNCTION_RETURN): Define.
(FUNCTION_VALUE): Promote to word_mode if smaller.
Convert to gen_rtx_FOO.
* rs6000.md (call_indirect): Store doubleword in 64-bit mode.
Convert to gen_rtx_FOO.
From-SVN: r20893
* Makefile.in (OBJS): Add gcse.o
(STAGESTUFF): Add *.gcse.
(gcse.o): Add dependencies.
(mostlyclean): Remove *.gcse and */*.gcse.
* gcse.c: New file.
* loop.c (loop_optimize): Move call to init_alias_analysis.
* recog.c (validate_replace_src): New function.
* toplev.c (gcse_dump): New global variable.
(flag_gcse, gcse_time): Likewise.
(compile_file): Initialize gcse_time and clean out the gcse dump
file if necessary.
(rest_of_compilation): Call gcse_main as requested. Dump RTL
after gcse if requested.
(main): Enable gcse for -O2 and above. Handle -dG. Enable gcse
dumps for -da.
* gcc.texi: Add gcse related internal documentation.
* invoke.texi: Note new command line options for gcse.
* tm.texi: Document AVOID_CCMODE_COPIES.
* mips.h (AVOID_CCMODE_COPIES): Define.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r19901
* gcc.c (SWITCH_CURTAILS_COMPILATION): Definition.
(DEFAULT_SWITCH_CURTAILS_COMPILATION): True for options -S and -c.
(process_command): If HAVE_EXECUTABLE_SUFFIX is defined then scan
command line arguments to see if an executable is not being
created, and if so - do not append the suffix.
* tm.texi (SWITCH_CURTAILS_COMPILATION): Add description of new
driver macro.
From-SVN: r19824
* varasm.c (assemble_variable): Compute the alignment of the data
earlier so that both initialized and uninitialized variables are
effected by DATA_ALIGNMENT.
* tm.texi (DATA_ALIGNMENT): Updated appropriately.
From-SVN: r19692
