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|
2009-03-07 H.J. Lu <hongjiu.lu@intel.com>
PR c/39323
* c-common.c (handle_aligned_attribute): Properly check alignment
overflow. Use (1U << i) instead of (1 << i).
* emit-rtl.c (get_mem_align_offset): Use "unsigned int" for
align.
* expr.h (get_mem_align_offset): Updated.
* tree.h (tree_decl_common): Change align to "unsigned int" and
move it before pointer_alias_set.
2009-02-28 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/39315
* cfgexpand.c (expand_one_stack_var_at): Change alignment
limit to MAX_SUPPORTED_STACK_ALIGNMENT.
2009-02-20 Joey Ye <joey.ye@intel.com>
PR middle-end/39146
* cfgexpand.c (get_decl_align_unit): Update
max_used_stack_slot_alignment with align instead of
stack_alignment_needed.
* function.c (assign_stack_local_1): Update
max_used_stack_slot_alignment with alignment_in_bits instead
of stack_alignment_needed.
(locate_and_pad_parm): Don't update max_used_stack_slot_alignment
here.
2008-08-05 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/37010
* calls.c (expand_call): Use the biggest preferred stack
boundary.
2008-08-04 H.J. Lu <hongjiu.lu@intel.com>
PR target/37049
* config/i386/i386.c (ix86_expand_push): Set memory alignment
to function argument boundary.
2008-08-04 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/37009
* cfgexpand.c (expand_stack_alignment): Check parm_stack_boundary
for incoming stack boundary.
* function.c (assign_parm_find_entry_rtl): Update
parm_stack_boundary.
* function.h (rtl_data): Add parm_stack_boundary.
* config/i386/i386.c (ix86_finalize_stack_realign_flags): Check
parm_stack_boundary for incoming stack boundary.
2008-08-01 H.J. Lu <hongjiu.lu@intel.com>
PR debug/37002
* dwarf2out.c (mem_loc_descriptor): Use DRAP for vDRAP which
has been optimized out.
2008-07-30 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (expand_stack_alignment): Set stack_realign_tried.
* dwarf2out.c (based_loc_descr): Check crtl->stack_realign_tried
for stack alignment.
* function.h (rtl_data): Add stack_realign_tried. Update
comments.
2008-07-28 H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (dwarf2out_args_size_adjust): New.
(dwarf2out_stack_adjust): Use it.
(dwarf2out_frame_debug_expr): Likewise.
2008-07-22 Xuepeng Guo <xuepeng.guo@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (dwarf2out_frame_debug_expr): When adjusting
DW_CFA_GNU_args_size if CSA pass merged some adjustments into
prologue sp adjustment, also update cfa_store.offset.
2008-07-20 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_gimplify_va_arg): Re-indent.
2008-07-19 H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (std_gimplify_va_arg_expr): Replace
PREFERRED_STACK_BOUNDARY with MAX_SUPPORTED_STACK_ALIGNMENT.
* config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
2008-07-19 H.J. Lu <hongjiu.lu@intel.com>
* function.c (assign_stack_local_1): Use ">" instead of ">="
to check MAX_SUPPORTED_STACK_ALIGNMENT.
(locate_and_pad_parm): Likewise.
2008-07-08 H.J. Lu <hongjiu.lu@intel.com>
Xuepeng Guo <xuepeng.guo@intel.com>
* dwarf2out.c (dw_fde_node): Add drap_reg_saved.
(dwarf2out_frame_debug_expr): Update rule 16 to set drap_reg,
update rules 19 and 20.
2008-07-07 H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (add_cfi): Don't allow redefine CFA when CFA is
defined with an expression.
2008-07-07 H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (dwarf2out_frame_debug_expr): After stack is
aligned, for (set reg sp), assert reg == fp and drap is used.
2008-07-07 H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c: Update comments.
2008-07-07 H.J. Lu <hongjiu.lu@intel.com>
Xuepeng Guo <xuepeng.guo@intel.com>
* dwarf2out.c (dw_fde_struct): Remove fp_has_aligned_sp.
(dwarf2out_frame_debug_expr): Don't generate dwarf2 information for
"mov sp bp" for drap cases. Only redefine cfa with expression in
Rule 19.
(build_cfa_aligned_loc): Swap parameter order.
(reg_save): Updated.
2008-07-07 Joey Ye <joey.ye@intel.com>
* config/i386/i386.c (ix86_expand_prologue): Add comments for
pushing return address.
2008-07-06 H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (dw_fde_node): Add fp_has_aligned_sp.
(dwarf2out_frame_debug_expr): Set fp_has_aligned_sp. Assert
cfa.reg != FP for rule 18. Assert fp_has_aligned_sp == 1 and
simplify rule 19.
2008-07-05 H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (build_cfa_aligned_loc): New.
(reg_save): Moved back. Use build_cfa_aligned_loc.
(int_loc_descriptor): Move prototype forward. Move definition
back. Also define if DWARF2_UNWIND_INFO is true.
2008-07-05 H.J. Lu <hongjiu.lu@intel.com>
Xuepeng Guo <xuepeng.guo@intel.com>
PR debug/36728
* dwarf2out.c (dw_fde_node): Add drap_reg and vdrap_reg. Remove
cfa_uses_expression.
(add_cfi): Check drap_reg instead of cfa_uses_expression.
(dwarf2out_frame_debug_expr): Add rule 20 to handle virtual
drap. Update rule 19 to set drap_reg instead of
cfa_uses_expression.
(dwarf2out_begin_prologue): Initialize drap_reg and vdrap_reg
to INVALID_REGNUM.
(based_loc_descr): Use cfa+offset to represent the location of
arguments passed on stack when drap is used to align stack.
* config/i386/i386.c (ix86_get_drap_rtx): Set RTX_FRAME_RELATED_P
bit on virtual drap insn.
2008-07-04 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (expand_stack_alignment): Fix a typo in comments.
2008-07-04 Xuepeng Guo <xuepeng.guo@intel.com>
PR debug/36728
* dwarf2out.c (based_loc_descr): For local variables, use
sp+offset when stack is aligned without drap and fp+offset
when stack is aligned with drap.
2008-06-30 H.J. Lu <hongjiu.lu@intel.com>
* global.c (compute_regsets): Reorder.
2008-06-28 H.J. Lu <hongjiu.lu@intel.com>
* global.c (compute_regsets): Update comments.
2008-06-27 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_update_stack_boundary): Don't check
eh_return.
2008-06-27 Xuepeng Guo <xuepeng.guo@intel.com>
* dwarf2out.c (dw_fde_node): Remove drap_regnum, uses_drap
and drap_reg_saved. Add cfa_uses_expression.
(reg_save_with_expression): Removed.
(add_cfi): Updated. Don't redefine CFA when CFA was defined
with DW_CFA_def_cfa_expression.
(reg_save): Moved before build_cfa_loc. Handle stack
alignment.
(dwarf2out_frame_debug_expr): Update Rule 18 and 19.
(int_loc_descriptor): Moved before output_cfa_loc.
(compute_frame_pointer_to_fb_displacement): Update assert.
2008-06-12 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (expand_stack_alignment): Don't set need_drap
to true for calling eh_return.
* dwarf2out.c (dw_fde_struct): Remove calls_eh_return.
(dwarf2out_begin_prologue): Updated.
(reg_save_with_expression): Likewise.
* config/i386/i386.c (find_drap_reg): Don't check calls_eh_return.
(ix86_update_stack_boundary): Set incoming stack boundary
to preferred stack boundary if a function calls eh_return.
(ix86_expand_epilogue): Assert stack isn't realigned when
eh_return is called.
2008-06-10 Joey Ye <joey.ye@intel.com>
* dwarf2out.c (based_loc_descr): Assert eliminate arg or frame
pointer with hard frame or stack pointer if stack alignment is
supported.
2008-06-08 H.J. Lu <hongjiu.lu@intel.com>
* caller-save.c (setup_save_areas): Upate comments for spill
space allocation.
* function.c (assign_stack_local_1): Update comments for stack
alignment.
(locate_and_pad_parm): Likewise.
2008-06-07 H.J. Lu <hongjiu.lu@intel.com>
* defaults.h (MAX_STACK_ALIGNMENT): Update comments.
(MAX_SUPPORTED_STACK_ALIGNMENT): New.
* cfgexpand.c (get_decl_align_unit): Ignore alignment if it
exceeds MAX_SUPPORTED_STACK_ALIGNMENT.
* function.c (assign_stack_local_1): Likewise.
(locate_and_pad_parm): Likewise.
* doc/tm.texi (MAX_STACK_ALIGNMENT): Updated.
2008-06-05 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_get_drap_rtx): Update comments.
(ix86_internal_arg_pointer): Reformat.
2008-06-03 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_gen_andsp): New.
(override_options): Initialize ix86_gen_andsp.
(ix86_expand_prologue): Updated.
(ix86_expand_epilogue): Likewise.
2008-06-03 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (find_drap_reg): Fix a comment typo.
2008-06-03 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (find_drap_reg): Use static-chain register
if possible.
2008-06-02 Xuepeng Guo <xuepeng.guo@intel.com>
* dwarf2out.c (dw_fde_struct): Rename is_drap to uses_drap.
(add_cfi): Replace is_drap with uses_drap.
(dwarf2out_frame_debug_expr): Update the comments, replace is_drap
with uses_drap and add two assertions.
(reg_save_with_expression): Replace is_drap with uses_drap.
2008-06-01 H.J. Lu <hongjiu.lu@intel.com>
* reload1.c (clear_can_eliminate): Removed.
(set_label_offsets): Updated.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
(mark_not_eliminable): Likewise.
2008-06-01 H.J. Lu <hongjiu.lu@intel.com>
* function.h (rtl_data): Remove save_param_ptr_reg.
* config/i386/i386.c (ix86_get_drap_rtx): Likewise.
(ix86_expand_prologue): Check call_used_regs on DRAP register
instead of crtl->save_param_ptr_reg.
(ix86_expand_epilogue): Likewise.
2008-05-30 H.J. Lu <hongjiu.lu@intel.com>
* defaults.h (INCOMING_STACK_BOUNDARY): New.
* cfgexpand.c (expand_stack_alignment): Call
targetm.calls.update_stack_boundary to update stack boundary
if needed. Check if stack alignment is needed.
* target.h (gcc_target): Add update_stack_boundary.
* target-def.h (TARGET_UPDATE_STACK_BOUNDARY): New.
(TARGET_CALLS): Add TARGET_UPDATE_STACK_BOUNDARY.
* config/i386/i386.c (ix86_update_stack_boundary): New.
(ix86_get_drap_rtx): Likewise.
(TARGET_UPDATE_STACK_BOUNDARY): Likewise.
(ix86_handle_drap): Removed.
(TARGET_GET_DRAP_RTX): Replace ix86_handle_drap with
ix86_get_drap_rtx.
* doc/tm.texi (INCOMING_STACK_BOUNDARY): New.
(TARGET_UPDATE_STACK_BOUNDARY): Likewise.
(TARGET_GET_DRAP_RTX): Updated.
2008-05-30 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (handle_drap): Renamed to ...
(expand_stack_alignment): This. Call targetm.calls.get_drap_rtx
instead of targetm.calls.internal_arg_pointer for virtual
DRAP.
(tree_expand_cfg): Updated.
* target.h (gcc_target): Add get_drap_rtx.
* target-def.h (TARGET_GET_DRAP_RTX): New.
(TARGET_CALLS): Add TARGET_GET_DRAP_RTX.
* config/i386/i386.c (find_drap_reg): Add a FIXME to use an
unused call-clobbered register.
(ix86_internal_arg_pointer): Move stack alignment and virtual
drap processing to ...
(ix86_handle_drap): This. New.
(TARGET_GET_DRAP_RTX): New.
* doc/tm.texi (TARGET_GET_DRAP_RTX): New.
2008-05-29 H.J. Lu <hongjiu.lu@intel.com>
* reload1.c (mark_not_eliminable): Call clear_can_eliminate
to clear the can_eliminate field.
2008-05-29 H.J. Lu <hongjiu.lu@intel.com>
* reload1.c (SET_NOT_ELIMINABLE): Removed.
(clear_can_eliminate): New.
(set_label_offsets): Replace SET_NOT_ELIMINABLE with
clear_can_eliminate.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
* config/i386/i386.h (SET_NOT_ELIMINABLE): Removed.
* doc/tm.texi (SET_NOT_ELIMINABLE): Likewise.
2008-05-29 H.J. Lu <hongjiu.lu@intel.com>
* doc/tm.texi (SET_NOT_ELIMINABLE): Updated.
2008-05-29 Joey Ye <joey.ye@intel.com>
* config/i386/i386.h (SET_NOT_ELIMINABLE): Add more checks on
eliminable registers.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* reload1.c (SET_NOT_ELIMINABLE): Set can_eliminate directly.
(set_not_eliminable): Removed.
* config/i386/i386.h (SET_NOT_ELIMINABLE): Set can_eliminate
directly.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (expand_builtin_longjmp): Replace comparison of
MAX_STACK_ALIGNMENT and STACK_BOUNDARY with
SUPPORTS_STACK_ALIGNMENT.
(expand_builtin_apply): Likewise.
* calls.c (emit_call_1): Likewise.
* cfgexpand.c (get_decl_align_unit): Likewise.
(expand_one_var): Likewise.
(handle_drap): Likewise.
* emit-rtl.c (gen_reg_rtx): Likewise.
* function.c (assign_stack_local_1): Likewise.
(assign_parms): Likewise.
(locate_and_pad_parm): Likewise.
* global.c (compute_regsets): Likewise.
* reload1.c (set_label_offsets): Likewise.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
(update_eliminables): Likewise.
(init_elim_table): Likewise.
* defaults.h (MAX_STACK_ALIGNMENT): Add FIXME.
(SUPPORTS_STACK_ALIGNMENT): New.
* function.c (assign_stack_local_1): Limit alignment to
MAX_STACK_ALIGNMENT.
(locate_and_pad_parm): Likewise.
* doc/tm.texi (MAX_STACK_ALIGNMENT): Add FIXME.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (expand_builtin_longjmp): Replace MAX_STACK_ALIGNMENT
with comparison of MAX_STACK_ALIGNMENT and STACK_BOUNDARY.
(expand_builtin_apply): Likewise.
* calls.c (emit_call_1): Likewise.
* cfgexpand.c (get_decl_align_unit): Likewise.
(expand_one_var): Likewise.
(handle_drap): Likewise.
* emit-rtl.c (gen_reg_rtx): Likewise.
* function.c (assign_stack_local_1): Likewise.
(assign_parms): Likewise.
(locate_and_pad_parm): Likewise.
* global.c (compute_regsets): Likewise.
* reload1.c (set_label_offsets): Likewise.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
(update_eliminables): Likewise.
(init_elim_table): Likewise.
* tree-vectorizer.c (vect_can_force_dr_alignment_p): Use
MAX_STACK_ALIGNMENT to check stack alignment.
* defaults.h (MAX_STACK_ALIGNMENT): Default to STACK_BOUNDARY.
* doc/tm.texi (MAX_STACK_ALIGNMENT): Likewise.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* reload1.c (SET_NOT_ELIMINABLE): New.
(set_not_eliminable): Remove gcc_assert.
(set_label_offsets): Use SET_NOT_ELIMINABLE instead of
set_not_eliminable.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
* config/i386/i386.c (ix86_can_elimination): Renamed to ...
(ix86_can_eliminate): This.
* config/i386/i386.h (SET_NOT_ELIMINABLE): New.
* doc/tm.texi (SET_NOT_ELIMINABLE): New.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_can_elimination): New.
* config/i386/i386-protos.h (ix86_can_eliminate): Likewise.
* config/i386/i386.h (CAN_ELIMINATE): Use it.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* reload1.c (set_not_eliminatable): Renamed to ...
(set_not_eliminable): This.
(set_label_offsets): Updated.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
2008-05-28 Richard Guenther <rguenther@suse.de>
Joey Ye <joey.ye@intel.com>
* reload1.c (set_not_eliminatable): New.
(set_label_offsets): Use it.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
2008-05-28 Joey Ye <joey.ye@intel.com>
* dwarf2out.c (compute_frame_pointer_to_fb_displacement): Change
assertion for stack realign.
2008-05-28 H.J. Lu <hongjiu.lu@intel.com>
* doc/tm.texi (LOCAL_ALIGNMENT): Revert the last change.
* config/bfin/bfin.c (bfin_local_alignment): Likewise.
* config/bfin/bfin.h (LOCAL_ALIGNMENT): Likewise.
* config/bfin/bfin-protos.h (bfin_local_alignment): Likewise.
* config/mips/mips.h (LOCAL_ALIGNMENT): Likewise.
* config/mmix/mmix.c (mmix_local_alignment): Likewise.
* config/mmix/mmix.h (LOCAL_ALIGNMENT): Likewise.
* config/mmix/mmix-protos.h (mmix_local_alignment): Likewise.
* config/rs6000/rs6000.h (LOCAL_ALIGNMENT): Likewise.
* config/score/score.h (LOCAL_ALIGNMENT): Likewise.
* config/sh/sh.h (LOCAL_ALIGNMENT): Likewise.
* config/sparc/sparc.h (LOCAL_ALIGNMENT): Likewise.
* config/spu/spu.h (LOCAL_ALIGNMENT): Likewise.
2008-05-27 Xuepeng Guo <xuepeng.guo@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (CUR_FDE): Removed.
(dw_fde_struct): Reformat comments.
(add_cfi): Updated to replace CUR_FDE with current_fde.
Reformat and update comments.
(dwarf2out_frame_debug_expr): Likewise.
(reg_save_with_expression): Likewise.
2008-05-26 Joey Ye <joey.ye@intel.com>
* dwarf2out.c (based_loc_descr): Update assertion for stack
realign.
2008-05-26 Joey Ye <joey.ye@intel.com>
* function.h (frame_pointer_needed_set): Remove.
* global.c (compute_regsets): Remove frame_pointer_needed_set
and add comments.
* reload1.c (init_elim_table): Likewise.
2008-05-26 Joey Ye <joey.ye@intel.com>
* function.h (rtl_data): Add more descriptive comments to
preferred_stack_boundary, stack_alignment_estimated,
frame_pointer_needed_set, stack_realign_needed,
stack_realign_processed, stack_realign_finalized. Remove
stack_realign_really. Rename stack_alignment_used to
max_used_stack_slot_alignment.
* cfgexpand.c (get_decl_align_unit): Updated.
(tree_expand_cfg): Likewise.
* function.c (assign_stack_local_1): Likewise.
(locate_and_pad_parm): Likewise.
* config/i386/i386.c (ix86_finalize_stack_realign_flags): Likewise.
* config/i386/i386.c (ix86_finalize_stack_realign_flags): Remove
stack_realign_really and reuse stack_realign_needed.
(ix86_expand_prologue): Likewise.
(ix86_expand_epilogue): Likewise.
2008-05-25 H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (expand_builtin_longjmp): Replace
MAX_VECTORIZE_STACK_ALIGNMENT with MAX_STACK_ALIGNMENT.
(expand_builtin_apply): Likewise.
* calls.c (emit_call_1): Likewise.
* cfgexpand.c (get_decl_align_unit): Likewise.
(expand_one_var): Likewise.
(handle_drap): Likewise.
* emit-rtl.c (gen_reg_rtx): Likewise.
* function.c (assign_stack_local_1): Likewise.
(assign_parms): Likewise.
(locate_and_pad_parm): Likewise.
* global.c (compute_regsets): Likewise.
* reload1.c (set_label_offsets): Likewise.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
(update_eliminables): Likewise.
(init_elim_table): Likewise.
* tree-vectorizer.c (vect_can_force_dr_alignment_p): Likewise.
* defaults.h (MAX_VECTORIZE_STACK_ALIGNMENT): Renamed to ...
(MAX_STACK_ALIGNMENT): This.
* config/i386/i386.h (MAX_VECTORIZE_STACK_ALIGNMENT): Removed.
(MAX_STACK_ALIGNMENT): New.
* doc/tm.texi (MAX_STACK_ALIGNMENT): New.
2008-05-25 H.J. Lu <hongjiu.lu@intel.com>
* function.h (rtl_data): Replace need_frame_pointer and
need_frame_pointer_set with frame_pointer_needed and
frame_pointer_needed_set, respectively.
(frame_pointer_needed): Replace need_frame_pointer with
frame_pointer_needed.
* global.c (compute_regsets): Replace need_frame_pointer_set
with frame_pointer_needed_set.
* reload1.c (init_elim_table): Likewise.
2008-05-18 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* caller-save.c (setup_save_areas): Call assign_stack_local_1
instead of assign_stack_local to allow alignment reduction.
* function.c (assign_stack_local_1): New function to implement
original assign_stack_local with one additional parameter.
(assign_stack_local): Wrap assign_stack_local_1 with one
additional parameter.
* rtl.h (assign_stack_local_1): Declare new funtion.
2008-05-17 H.J. Lu <hongjiu.lu@intel.com>
PR middle-end/36253
* caller-save.c (insert_restore): Verify alignment of spill
space.
(insert_save): Likewise.
* cfgexpand.c (LOCAL_ALIGNMENT): Removed.
(get_decl_align_unit): Pass VOIDmode to LOCAL_ALIGNMENT.
* defaults.h (LOCAL_ALIGNMENT): New. Provide default.
* function.c (LOCAL_ALIGNMENT): Removed.
(get_stack_local_alignment): New.
(assign_stack_local): Use it. Set alignment on stack slot.
(assign_stack_temp_for_type): Use get_stack_local_alignment.
* config/bfin/bfin.c (bfin_local_alignment): Updated.
* config/bfin/bfin.h (LOCAL_ALIGNMENT): Likewise.
* config/bfin/bfin-protos.h (bfin_local_alignment): Likewise.
* config/i386/i386.h (LOCAL_ALIGNMENT): Likewise.
* config/i386/i386-protos.h (ix86_local_alignment): Likewise.
* config/mips/mips.h (LOCAL_ALIGNMENT): Likewise.
* config/mmix/mmix.c (mmix_local_alignment): Likewise.
* config/mmix/mmix.h (LOCAL_ALIGNMENT): Likewise.
* config/mmix/mmix-protos.h (mmix_local_alignment): Likewise.
* config/rs6000/rs6000.h (LOCAL_ALIGNMENT): Likewise.
* config/score/score.h (LOCAL_ALIGNMENT): Likewise.
* config/sh/sh.h (LOCAL_ALIGNMENT): Likewise.
* config/sparc/sparc.h (LOCAL_ALIGNMENT): Likewise.
* config/spu/spu.h (LOCAL_ALIGNMENT): Likewise.
* config/i386/i386.c (ix86_local_alignment): Handle caller-save
stack slot in XFmode.
* config/rs6000/rs6000.h (LOCAL_ALIGNMENT_1): New.
* config/sh/sh.h (LOCAL_ALIGNMENT_1): Likewise.
* doc/tm.texi (LOCAL_ALIGNMENT): Add mode.
2008-05-15 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.h (GET_MODE_SPILL_ALIGNMENT): Removed.
* defaults.h (GET_MODE_SPILL_ALIGNMENT): Likewise.
* doc/rtl.texi (GET_MODE_SPILL_ALIGNMENT): Likewise.
* emit-rtl.c (gen_reg_rtx): Replace GET_MODE_SPILL_ALIGNMENT
with GET_MODE_ALIGNMENT.
2008-05-09 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_internal_arg_pointer): Check non-call
exceptions instead of exceptions.
2008-05-07 H.J. Lu <hongjiu.lu@intel.com>
* defaults.h (GET_MODE_SPILL_ALIGNMENT): New.
* config/i386/i386.h (GET_MODE_SPILL_ALIGNMENT): Likewise.
* emit-rtl.c (gen_reg_rtx): Use GET_MODE_SPILL_ALIGNMENT instead
of GET_MODE_ALIGNMENT.
* doc/rtl.texi (GET_MODE_SPILL_ALIGNMENT): New.
2008-05-07 H.J. Lu <hongjiu.lu@intel.com>
Joey Ye <joey.ye@intel.com>
* config/i386/i386.c (ix86_internal_arg_pointer): Check
PREFERRED_STACK_BOUNDARY if there may be exceptions.
2008-05-07 H.J. Lu <hongjiu.lu@intel.com>
* calls.c (expand_call): Don't use callgraph to increase
preferred_stack_boundary.
* cgraph.h (cgraph_rtl_info): Use unsigned on
preferred_incoming_stack_boundary.
* final.c (rest_of_clean_state): Use unsigned on
preferred_stack_boundary.
2008-05-06 Joey Ye <joey.ye@intel.com>
* calls.c (expand_call): Do calculate preferred stack
boundary according to incoming stack boundary.
* config/i386/i386.c (ix86_internal_arg_pointer): Check
crtl->preferred_stack_boundary instead of PREFERRED_STACK_BOUNDARY.
2008-04-26 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (handle_drap): Replace current_function_calls_alloca,
current_function_has_nonlocal_goto and
current_function_calls_eh_return with cfun->calls_alloca,
crtl->has_nonlocal_goto and crtl->calls_eh_return, respectively.
* dwarf2out.c (dwarf2out_begin_prologue): Replace
cfun->calls_eh_return with crtl->calls_eh_return.
* global.c (compute_regsets): Replace
current_function_accesses_prior_frames with
crtl->accesses_prior_frames.
* config/i386/i386.c (find_drap_reg): Replace cfun->tail_call_emit
and current_function_calls_eh_return with crtl->tail_call_emit
and crtl->calls_eh_return, respectively.
(ix86_internal_arg_pointer): Replace current_function_stdarg with
cfun->stdarg.
(ix86_expand_epilogue): Replace cfun->calls_eh_return with
crtl->calls_eh_return.
2008-04-26 H.J. Lu <hongjiu.lu@intel.com>
* function.h (rtl_data): Change stack_alignment_used,
stack_alignment_estimated, stack_realign_needed,
stack_realign_really, need_drap, save_param_ptr_reg,
stack_realign_processed and stack_realign_finalized to bool.
2008-04-21 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (expand_one_var): Don't collect stack alignment
on error_mark_node.
2008-04-19 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (tree_expand_cfg): Initialize stack_alignment_used
and stack_alignment_estimated to STACK_BOUNDARY.
* function.h (function): Move stack_alignment_used,
stack_alignment_estimated, stack_realign_needed,
stack_realign_really, need_drap, save_param_ptr_reg,
stack_realign_processed and stack_realign_finalized to ...
(rtl_data): Here.
(stack_realign_fp): Updated.
(stack_realign_drap): Likewise.
* calls.c (emit_call_1): Likewise.
(expand_call): Likewise.
(emit_library_call_value_1): Likewise.
* cfgexpand.c (get_decl_align_unit): Likewise.
(expand_one_var): Likewise.
(handle_drap): Likewise.
* emit-rtl.c (gen_reg_rtx): Likewise.
* function.c (assign_stack_local): Likewise.
(assign_parm_adjust_stack_rtl): Likewise.
(assign_parms): Likewise.
(locate_and_pad_parm): Likewise.
* global.c (compute_regsets): Likewise.
* reload1.c (reload): Likewise.
(update_eliminables): Likewise.
* config/i386/i386.c (ix86_compute_frame_layout): Likewise.
(ix86_internal_arg_pointer): Likewise.
(ix86_finalize_stack_realign_flags): Likewise.
(ix86_expand_prologue): Likewise.
(ix86_expand_epilogue): Likewise.
* function.c (allocate_struct_function): Remove initialization
of stack_alignment_used and stack_alignment_estimated.
2008-04-15 Joey Ye <joey.ye@intel.com>
* global.c (compute_regsets): Replace cfun->need_frame_pointer_set
with crtl->need_frame_pointer_set.
* reload1.c (init_elim_table): Likewise.
* function.h (function): Move need_frame_pointer and
need_frame_pointer_set to ...
(rtl_data): Here.
(frame_pointer_needed): Updated.
2008-04-14 Xuepeng Guo <xuepeng.guo@intel.com>
Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* dwarf2out.c (struct dw_fde_struct): Rename is_stack_realign
to stack_realign and is_drap_reg_saved to drap_reg_saved. Add
calls_eh_return.
(add_cfi): Updated.
(dwarf2out_frame_debug_expr): Likewise.
(dwarf2out_begin_prologue): Initialize calls_eh_return.
(reg_save_with_expression): Don't generate unwind information
for restoring the stack pointer if __builtin_eh_return is called.
* cfgexpand.c (handle_drap): Need drap if functon calls
__builtin_eh_return.
* config/i386/i386.c (find_drap_reg): Use DI_REG if function
calls __builtin_eh_return.
(ix86_internal_arg_pointer): Remove setting incoming stack
boundary to preferred when __builtin_eh_return is called.
(ix86_finalize_stack_realign_flags): New.
(ix86_expand_prologue): Call ix86_finalize_stack_realign_flags.
(ix86_expand_epilogue): Likewise. Handle __builtin_eh_return
with stack realignment.
2008-04-14 Joey Ye <joey.ye@intel.com>
* emit-rtl.c (gen_reg_rtx): Don't update stack_alignment_estimated
if stack_align_prcocessed is true.
2008-04-14 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (handle_drap): Make it void. Return if
MAX_VECTORIZE_STACK_ALIGNMENT is 0.
(tree_expand_cfg): Call handle_drap.
(gate_handle_drap): Removed.
(pass_handle_drap): Likewise.
* passes.c (pass_handle_drap): Likewise.
* tree-pass.h (pass_handle_drap): Likewise.
2008-04-12 H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (expand_builtin_longjmp): Don't check !cfun->need_drap
when setting cfun->need_drap.
(expand_builtin_apply): Likewise.
* calls.c (emit_call_1): Likewise.
* cfgexpand.c (handle_drap): Likewise.
2008-04-11 H.J. Lu <hongjiu.lu@intel.com>
* function.c (assign_stack_local): Update alignment_in_bits.
Set alignment on stack slot.
2008-04-11 Joey Ye <joey.ye@intel.com>
* dojump.c (discard_pending_stack_adjust): Insert empty line,
which makes it same as trunk.
2008-04-09 Joey Ye <joey.ye@intel.com>
* dojump.c (clear_pending_stack_adjust): Revert comments.
* function.c (locate_and_pad_parm): cfun->preferred_stack_boundary
should be max of outgoing parameter alignment.
* tree-vectorizer.c (vect_can_force_dr_alignment_p): Don't
collect stack alignment here.
* config/i386/i386.c (ix86_compute_frame_layout): Add assertion.
2008-04-09 H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (expand_builtin_setjmp_receiver): Replace
current_function_internal_arg_pointer with
crtl->args.internal_arg_pointer.
(expand_builtin_apply_args_1): Likewise.
* calls.c (expand_call): Likewise.
* cfgexpand.c (handle_drap): Likewise.
* function.c (instantiate_new_reg): Likewise.
(get_arg_pointer_save_area): Likewise.
* stmt.c (expand_nl_goto_receiver): Likewise.
* function.h (function): Move drap_reg to ...
(rtl_data): Here.
* config/i386/i386.c (ix86_va_start): Replace
current_function_internal_arg_pointer with
crtl->args.internal_arg_pointer.
(ix86_select_alt_pic_regnum): Replace cfun->drap_reg with
crtl->drap_reg.
(ix86_save_reg): Likewise.
(ix86_internal_arg_pointer): Likewise.
(ix86_expand_prologue): Likewise.
(ix86_expand_epilogue): Likewise.
2008-04-08 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* builtins.c (expand_builtin_longjmp): Need drap for longjmp.
(expand_builtin_apply): Need drap for builtin_apply.
* calls.c (emit_call_1): Need drap for callee pop function call.
* cfgexpand.c (gate_stack_realign): Renamed to ...
(gate_handle_drap): This.
(collect_stackrealign_info): Removed.
(pass_collect_stackrealign_info): Likewise.
(handle_drap): Check DRAP conditions here. Update comments.
(pass_handle_drap): Updated. Remove PROP_rtl.
* emit-rtl.c (gen_reg_rtx): Update stack_alignment_estimated.
* passes.c (pass_collect_stackrealign_info): Removed.
* tree-pass.h (pass_collect_stackrealign_info): Likewise.
* tree-inline.c (expand_call_inline): Don't collect alignment
information here.
2008-03-24 H.J. Lu <hongjiu.lu@intel.com>
* cfgexpand.c (get_decl_align_unit): Update stack_alignment_used.
* function.c (assign_stack_local_1): Likewise.
(locate_and_pad_parm): Likewise.
(allocate_struct_function): Initialize stack_alignment_used.
* function.h (function): Update stack_alignment_needed
comment. Add stack_alignment_used.
* config/i386/i386.c (ix86_expand_prologue): For leaf function,
check stack_alignment_used to set stack_realign_really.
2008-03-24 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_select_alt_pic_regnum): Check
DRAP register.
2008-03-23 Uros Bizjak <ubizjak@gmail.com>
Revert:
2008-03-05 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386-modes.def: Use 4 byte alignment on DI for
32bit host.
2008-03-19 Uros Bizjak <ubizjak@gmail.com>
PR target/35496
* stor-layout.c (update_alignment_for_field): Set minimum alignment
of the underlying type of a MS bitfield layout to the natural
alignment of the type.
2008-03-22 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (ix86_function_regparm): Remove check
ix86_force_align_arg_pointer in the last patch.
2008-03-22 Uros Bizjak <ubizjak@gmail.com>
H.J. Lu <hongjiu.lu@intel.com>
PR target/12329
* config/i386/i386.c (ix86_function_regparm): Limit the number of
register passing arguments to 2 for nested functions.
2008-03-19 Joey Ye <joey.ye@intel.com>
H.J. Lu <hongjiu.lu@intel.com>
Xuepeng Guo <xuepeng.guo@intel.com>
* builtins.c (expand_builtin_setjmp_receiver): Replace
virtual_incoming_args_rtx with
current_function_internal_arg_pointer.
(expand_builtin_apply_args_1): Likewise.
* calls.c (expand_call): Don't calculate preferred stack
boundary according to incoming stack boundary. Replace
virtual_incoming_args_rtx with
current_function_internal_arg_pointer.
* cfgexpand.c (get_decl_align_unit): Estimate stack variable
alignment and store to stack_alignment_estimated.
(expand_one_var): Likewise.
(gate_stack_realign): Gate new pass pass_collect_stackrealign_info
and pass_handle_drap.
(collect_stackrealign_info): Execute new pass
pass_collect_stackrealign_info.
(pass_collect_stackrealign_info): Define new pass.
(handle_drap): Execute new pass pass_handle_drap.
(pass_handle_drap): Define new pass.
* defaults.h (MAX_VECTORIZE_STACK_ALIGNMENT): New.
* dojump.c (clear_pending_stack_adjust): Leave an FIXME in
comments in case pending stack ajustment is discard when stack
realign is needed.
* flags.h (frame_pointer_needed): Removed.
* final.c (frame_pointer_needed): Likewise.
* function.c (assign_stack_local_1): Estimate stack variable
alignment and store to stack_alignment_estimated.
(instantiate_new_reg): Instantiate virtual incoming args rtx to
vDRAP if stack realignment and DRAP is needed.
(assign_parms): Collect parameter/return type alignment and
contribute to stack_alignment_estimated.
(locate_and_pad_parm): Likewise.
(allocate_struct_function): Init stack_alignment_estimated.
(get_arg_pointer_save_area): Replace virtual_incoming_args_rtx
with current_function_internal_arg_pointer.
* function.h (function): Add drap_reg, stack_alignment_estimated,
need_frame_pointer, need_frame_pointer_set, stack_realign_needed,
stack_realign_really, need_drap, save_param_ptr_reg,
stack_realign_processed, and stack_realign_finalized.
(frame_pointer_needed): New.
(stack_realign_fp): Likewise.
(stack_realign_drap): Likewise.
* global.c (compute_regsets): Set frame_pointer_needed cannot_elim
wrt stack_realign_needed.
* stmt.c (expand_nl_goto_receiver): Replace
virtual_incoming_args_rtx with
current_function_internal_arg_pointer.
* passes.c (pass_collect_stackrealign_info): Insert this new pass
immediately before expand.
(pass_handle_drap): Insert this new pass immediately after expand.
* tree-inline.c (expand_call_inline): Estimate stack variable
alignment and store to stack_alignment_estimated.
* tree-pass.h (pass_handle_drap): New.
(pass_collect_stackrealign_info): Likewise.
* tree-vectorizer.c (vect_can_force_dr_alignment_p): Estimate
stack variable alignment and store to stack_alignment_estimated.
* reload1.c (set_label_offsets): Assert that frame pointer must be
elimiated to stack pointer in case stack realignment is estimated
to happen without DRAP.
(elimination_effects): Likewise.
(eliminate_regs_in_insn): Likewise.
(mark_not_eliminable): Likewise.
(update_eliminables): Frame pointer is needed in case of stack
realignment needed.
(init_elim_table): Don't set frame_pointer_needed here.
* config/i386/i386.c (ix86_force_align_arg_pointer_string): Break
long line.
(ix86_user_incoming_stack_boundary): New.
(ix86_default_incoming_stack_boundary): Likewise.
(ix86_incoming_stack_boundary): Likewise.
(find_drap_reg): Likewise.
(override_options): Overide option value for new options.
(ix86_function_ok_for_sibcall): Sibcall is OK even stack need
realigning.
(ix86_handle_cconv_attribute): Stack realign no longer impacts
number of regparm.
(ix86_function_regparm): Likewise.
(setup_incoming_varargs_64): Remove the logic to set
stack_alignment_needed here.
(ix86_va_start): Replace virtual_incoming_args_rtx with
current_function_internal_arg_pointer.
(ix86_save_reg): Replace force_align_arg_pointer with drap_reg.
(ix86_compute_frame_layout): Compute frame layout wrt stack
realignment.
(ix86_internal_arg_pointer): Estimate if stack realignment is
needed and returns appropriate arg pointer rtx accordingly.
(ix86_expand_prologue): Finally decide if stack realignment
is needed and generate prologue code accordingly.
(ix86_expand_epilogue): Generate epilogue code wrt stack
realignment is really needed or not.
* config/i386/i386.h (MAIN_STACK_BOUNDARY): New.
(ABI_STACK_BOUNDARY): Likewise.
PREFERRED_STACK_BOUNDARY_DEFAULT): Likewise.
(STACK_REALIGN_DEFAULT): Likewise.
(INCOMING_STACK_BOUNDARY): Likewise.
(MAX_VECTORIZE_STACK_ALIGNMENT): Likewise.
(ix86_incoming_stack_boundary): Likewise.
(REAL_PIC_OFFSET_TABLE_REGNUM): Updated to use BX_REG.
(CAN_ELIMINATE): Redefine the macro to eliminate frame pointer to
stack pointer and arg pointer to hard frame pointer in case of
stack realignment without DRAP.
(machine_function): Remove force_align_arg_pointer.
* config/i386/i386.md (BX_REG): New.
(R13_REG): Likewise.
* config/i386/i386.opt (mforce_drap): New.
(mincoming-stack-boundary): Likewise.
(mstackrealign): Updated.
* doc/extend.texi: Update force_align_arg_pointer.
* doc/invoke.texi: Document -mincoming-stack-boundary. Update
-mstackrealign.
2008-03-19 Xuepeng Guo <xuepeng.guo@intel.com>
Joey Ye <joey.ye@intel.com>
* dwarf2out.c (CUR_FDE): New.
(reg_save_with_expression): Likewise.
(dw_fde_struct): Add drap_regnum, stack_realignment,
is_stack_realign, is_drap and is_drap_reg_saved.
(add_cfi): If stack is realigned, call reg_save_with_expression
to represent the location of stored vars.
(dwarf2out_frame_debug_expr): Add rules 16-19 to handle stack
realign.
(output_cfa_loc): Handle DW_CFA_expression.
(based_loc_descr): Update assert for stack realign.
2008-02-06 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386-modes.def: Use 8 byte alignment on DI for
TARGET_ALIGN_DOUBLE.
2008-02-06 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386-modes.def: Use 4 byte alignment on DI for
32bit host.
2008-02-06 Joey Ye <joey.ye@intel.com>
PR middle-end/34921
* tree-nested.c (insert_field_into_struct): Set type alignment
to field alignment if the former is less than the latter.
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