* expr.c (store_field): Force usage of bitfield instructions when
the field position requires it, whatever SLOW_UNALIGNED_ACCESS.
(expand_expr, case BIT_FIELD_REF): likewise.
From-SVN: r65701
* expr.c (expand_assignment): Extend offset_rtx with convert_to_mode
not with convert_memory_address.
(store_constructor): Ditto, and same for copy_size_rtx.
(expand_expr): Ditto.
From-SVN: r65433
PR c/9516
* expr.c (safe_from_p): Rearrange to avoid deep recursion in
favour of looping and tail recursion for TREE_LIST and binops.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r65363
PR c++/10091
* expr.c (expand_expr) [ADDR_EXPR]: Disallow taking the address of
an unaligned member of TREE_ADDRESSABLE type.
* cp/typeck.c (build_class_member_access_expr): Compare
TYPE_MAIN_VARIANTs.
From-SVN: r64520
PR c++/7050
* expr.c (store_expr): Don't attempt to store void-typed trees,
just evaluate them for side effects.
* cp/expr.c (cxx_expand_expr): Return const0_rtx for throw
expressions.
From-SVN: r64268
* objc-act.c: Include cgraph.h
(mark_referenced_methods): New function.
(objc_init): Call it.
* objc-lang.c (LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION): Set.
* c-decl.c (finish_function): Honor can_defer_p even in unit-at-a-time
mode.
* optabs.c (expand_fix): Do not widen the input operand.
* expr.c (emit_group_store): Fix crash when converting single
register into complex register.
* Makefile.in (jump.o, regclass.o, alias.o): Add dependency on timevar.h
* alias.c: Include timevar.h
(init_alias_analysis): Set timevar
* jump.c: Include timevar.h
(rebuild_jump_labels): Set timevar
* regcalss.c: Include timevar.h
(reg_scan): Set timevar
* timevar.def (TV_ALIAS_ANALYSIS, TV_REG_SCAN, TV_REBUILD_JUMP): New
From-SVN: r63464
* calls.c (store_one_arg): Revert 1999-02-16 change. Revert
2000-12-17 change. Pass EXPAND_STACK_PARM to expand_expr.
* expr.h (enum expand_modifier): Define EXPAND_STACK_PARM.
(enum block_op_methods): Reorder for better store_expr optimization.
* expr.c (store_expr): Test bit 1 of "want_value" for call param
stores, test bit 0 for original want_value meaning. Pass
BLOCK_OP_CALL_PARM to emit_block_move when bit 1 set. Adjust
recursive calls, and calls to expand_param.
(expand_expr): Handle EXPAND_STACK_PARM modifier. When cse
expected, set target to 0 rather than to subtarget. Formatting.
From-SVN: r63337
* expr.c (gen_group_rtx, emit_group_move): New functions.
* expr.h (gen_group_rtx, emit_group_move): Prototype.
* function.c (expand_function_start): Use gen_group_rtx to create a
PARALLEL rtx to hold the return value when the real return rtx is a
PARALLEL.
(expand_function_end): Use emit_group_move to move the return value
from a PARALLEL to the real return registers.
* rtl.h (REG_FUNCTION_VALUE_P): Allow function values to be returned
in PARALLELs.
From-SVN: r59554
2002-11-10 H.J. Lu <hjl@gnu.org>
* calls.c (PUSH_ARGS_REVERSED): Define only if not defined.
* expr.c (PUSH_ARGS_REVERSED): Likewise.
* config/i386/i386.h (PUSH_ARGS_REVERSED): Set to 1.
From-SVN: r59002
PR c/7411
* expr.c (expand_expr) [PLUS]: Simplify after the operands
have been expanded in EXPAND_NORMAL mode.
Co-Authored-By: Volker Reichelt <reichelt@igpm.rwth-aachen.de>
From-SVN: r57882
* expr.c (emit_group_load): Revise to allow splitting TCmode source
into DImode pieces.
* pa-64.h (LONG_DOUBLE_TYPE_SIZE): Define to 128.
* pa64-regs.h (CLASS_CANNOT_CHANGE_MODE_P): Inhibit changes from SImode
for floating-point register class.
* pa.c (function_arg): Fix handling of modes wider than one word for
TARGET_64BIT.
From-SVN: r56805
* expr.c (TARGET_MEM_FUNCTIONS): Transform to boolean.
(emit_block_move): Split out subroutines.
(emit_block_move_via_movstr): New.
(emit_block_move_via_libcall): New. Emit bcopy via normal call also.
(emit_block_move_libcall_fn): New. Construct function prototype for
bcopy as well.
(clear_storage): Split out subroutines.
(clear_storage_via_clrstr): New.
(clear_storage_via_libcall): New. Emit bzero as a normal call also.
(clear_storage_libcall_fn): New. Construct function prototype for
bzero as well.
(emit_push_insn): Use emit_block_move.
(expand_assignment): Booleanize TARGET_MEM_FUNCTIONS.
(store_constructor): Likewise.
From-SVN: r56464
* langhooks-def.h (LANG_HOOKS_EXPR_SIZE): New macro.
* langhooks.c (lhd_expr_size): Define default.
* langhooks.h (struct lang_hooks): Add expr_size.
* explow.c (expr_size): Call it.
* expr.c (store_expr): Don't copy an expression of size zero.
(expand_expr) [CONSTRUCTOR]: Use expr_size to calculate how much
to store.
* Makefile.in (builtins.o): Depend on langhooks.h.
* cp-lang.c (LANG_HOOKS_EXPR_SIZE): Define.
(cp_expr_size): New fn.
* call.c (build_over_call): Lose empty class hackery.
(convert_arg_to_ellipsis): Promote non-POD warning to error.
* typeck.c (build_modify_expr): Don't use save_expr on an lvalue.
From-SVN: r55983
* emit-rtl.c (set_mem_attributes_minus_bitpos): Rename from
set_mem_attributes and add BITPOS argument. Subtract it from
OFFSET when same is adjusted.
(set_mem_attributes): New wrapper function.
* expr.c (expand_assignment): Use set_mem_attributes_minus_bitpos;
remove offset adjustment hack.
* expr.h (set_mem_attributes_minus_bitpos): Declare.
From-SVN: r55846
* expr.c (expand_expr) [TRY_FINALLY_EXPR]: Don't use
GOTO_SUBROUTINE_EXPR when finally_block can be re-expanded.
* lang.c (java_unsafe_for_reeval): New.
(LANG_HOOKS_UNSAFE_FOR_REEVAL): New.
From-SVN: r55636
* expr.c (emit_move_insn_1): Handle arbitrary moves that are
the same size as a word.
* regrename.c (find_oldest_value_reg): Take WORDS_BIG_ENDIAN /
BYTES_BIG_ENDIAN into account.
From-SVN: r55482
* expr.c [CLEAR_RATIO]: New macro defining the maximum number
of move instructions to use when clearing memory, c.f. MOVE_RATIO.
[CLEAR_BY_PIECES]: New macro, using CLEAR_RATIO, to determine
whether clear_by_pieces should be used to clear storage.
(clear_storage): Use CLEAR_BY_PIECES instead of MOVE_BY_PIECES.
* doc/tm.texi: Document these two new target macros.
From-SVN: r55429
2002-06-16 Aldy Hernandez <aldyh@redhat.com>
* gcc.c-torture/execute/simd-1.c: New.
* gcc.dg/simd-1.c: New.
* doc/extend.texi (Vector Extensions): Document that we can
specify simd types not specifically supported by the hardware.
Document that simd types can be used as function arguments.
Document that signness does make a difference in SIMD types.
Misc cleanups and revisions to the "vector extensions" section.
* simplify-rtx.c (simplify_subreg): Simplify subregs of vector
constants.
* expr.c (vector_mode_valid_p): New.
* expr.h: Add vector_mode_valid_p.
* defaults.h (VECTOR_MODE_SUPPORTED_P): Set default.
* emit-rtl.c (immed_double_const): Do not abort on vectors.
* c-common.c (type_for_mode): Always build vector nodes regardless
of VECTOR_MODE_SUPPORTED_P.
(handle_mode_attribute): Error if we can't emulate a nonexisting
vector mode.
(handle_vector_size_attribute): Same.
* optabs.c (expand_binop): Open-code vector operations.
(expand_unop): Open-code vector unops.
(expand_vector_binop): New.
(expand_vector_unop): New.
* c-typeck.c (build_binary_op): Allow vectors in binops.
Allow vectors in conditional operatiors.
(build_unary_op): Allow vectors in unary minus.
* config/rs6000/rs6000.h (ALTIVEC_VECTOR_MODE): Conditionalize on
TARGET_ALTIVEC.
From-SVN: r54727
* expr.c (compare_from_rtx): Call simplify_relational_operation
on all comparisons, not just those between integer constants,
with the correct (possibly unsigned) comparison code.
(do_compare_rtx_and_jump): Likewise.
From-SVN: r54657
2002-06-05 David S. Miller <davem@redhat.com>
Delete SEQUENCE rtl usage outside of reorg and ssa passes.
* rtl.h (gen_sequence, emit_insns, emit_insns_before,
emit_insns_before_scope, emit_insns_after,
emit_insns_after_scope): Delete declaration.
* ada/misc.c (insert_code_for): Use emit_insn* instead of
emit_insns_foo.
* config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE.
(alpha_set_memflags): Fix comment.
(set_frame_related_p): Use get_insns instead of gen_sequence.
* config/alpha/alpha.md (setjmp receiver splitter): Avoid
emitting no insns.
* config/arm/arm.c (arm_finalize_pic): Use get_insns instead of
gen_sequence.
(arm_gen_load_multiple, arm_gen_store_multiple): Likewise.
* config/fr30/fr30.c (fr30_move_double): Likewise.
* config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr):
Likewise.
* config/ia64/ia64.c (spill_restore_mem): Likewise.
* config/ia64/ia64.md (conditional move spliiter): Avoid emitting
no insns.
* config/m32r/m32r.c (gen_split_move_double): Use get_insns
instead of gen_sequence.
* config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise.
(mips_expand_prologue, mips16_gp_pseudo_reg): Likewise.
* config/sh/sh.c (sh_need_epilogue): Likewise.
* config/sparc/sparc.md (current_function_calls_alloca, flat): New
attributes.
(setjmp pattern and split): Use them to avoid splitter which emits
no RTL.
* genattrtab.c (main): Emit include of function.h
* config/stormy16/stormy16.c (xstormy16_split_cbranch): Use
get_insns instead of gen_sequence.
* config/cris/cris.c (cris_split_movdx): Likewise.
* emit-rtl.c (emit_insns*): Kill.
(try_split): Expect insn list instead of SEQUENCE.
(make_jump_insn_raw, make_call_insn_raw): Fix comments.
(emit_*insn*): Reimplement to work with INSN lists and PATTERNs.
Make them abort if a SEQUENCE is given and RTL checking is
enabled.
(emit_*_scope): Don't forget to set scope on final insn.
(gen_sequence): Move from here...
* ssa.c (gen_sequence): To here as private function.
* builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix
comments.
(expand_builtin_return, expand_builtin_mathfn): Likewise.
(expand_builtin_strlen): Use get_insns instead of gen_sequence.
(expand_builtin_saveregs): Use emit_insn_foo, fix comments.
(expand_builtin_expect_jump): Use get_insns and fix comments.
* calls.c (try_to_integrate): Use emit_insn_foo.
(expand_call, emit_library_call_value_1): Likewise.
* expr.c (emit_queue): Handle insn lists instead of SEQUENCE.
(emit_move_insn_1): Use get_insns instead of gen_sequence.
(expand_expr): Use emit_insn_foo.
* cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo.
* except.c (build_post_landing_pads): Likewise.
* flow.c (attempt_auto_inc): Likewise.
* stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label,
expand_nl_goto_receivers, expand_decl_cleanup): Likewise.
* function.c (fixup_var_refs_insn): Use get_insns instead of
gen_sequence.
(fixup_var_refs_1): Likewise and expect insn list from gen_foo.
(fixup_memory_subreg): Use get_insns instead of gen_sequence.
(fixup_stack_1, purge_addressof_1, expand_main_function,
get_arg_pointer_save_area): Likewise.
(optimize_bit_field, instantiate_virtual_regs_1, assign_parms,
expand_function_end): Use emit_insn_foo.
(record_insns, keep_stack_depressed): Work with insn list instead
of SEQUENCE, fix comments.
* ifcvt.c (noce_emit_store_flag, noce_try_store_flag,
noce_try_store_flag_constants, noce_try_store_flag_inc,
noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith,
noce_try_minmax, noce_try_abs): Use emit_insn_foo.
(noce_process_if_block): Use get_insns instead of gen_sequence.
* optabs.c (add_equal_note): Work with insn list, fix comments.
(expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo.
(expand_unop, expand_complex_abs, expand_unop_insn,
expand_no_conflict_block): Likewise.
(gen_move_insn): Use get_insns instead of gen_sequence.
(gen_cond_trap): Likewise.
* integrate.c (copy_rtx_and_substitute): Likewise.
(emit_initial_value_sets): Use emit_insn_foo.
* reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise.
(fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently
now that RTL generators give insn lists.
* sibcall.c (replace_call_placeholder): Use emit_insn_foo.
* doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns
instead of gen_sequence.
(doloop_optimize): Work with insn lists instead of SEQUENCE rtl.
* explow.c (emit_stack_save, emit_stack_restore): Use get_insns
instead of gen_sequence.
* loop.c (move_movables, emit_prefetch_instructions,
gen_add_mult, check_dbra_loop, gen_load_of_final_value):
Likewise.
(loop_regs_update): Work with insn list instead of SEQUENCE rtl.
(product_cheap_p): Likewise, and add commentary about RTL wastage
here.
* lcm.c (optimize_mode_switching): Use get_insns instead of
gen_sequence.
* profile.c (gen_edge_profiler): Likewise.
* regmove.c (copy_src_to_dest): Likewise.
* reg-stack.c (compensate_edge): Likewise and fix comment.
* gcse.c (process_insert_insn): Likewise.
(insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl.
* jump.c (delete_prior_computation): Update comment.
* genemit.c (gen_expand, gen_split, main): Use get_insns instead
of gen_sequence, update comments to match.
* recog.c (peephole2_optimize): Work with insn lists instead of
SEQUENCE rtl.
* sched-vis.c (print_pattern): Abort on SEQUENCE.
* unroll.c (unroll_loop, find_splittable_givs, final_giv_value):
Use get_insns instead of gen_sequence.
(copy_loop_body): Likewise and don't emit dummy NOTE.
* genrecog.c: Don't mention SEQUENCE rtl in comments.
* combine.c (try_combine): Expect insn lists from split generator.
* reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by
hand.
From-SVN: r54497
* alias.c (static_reg_base_value): New to hold RTL for
items allocated once per function for the aliasing code.
(init_alias_once_per_function): Initialize static_reg_base_value.
(init_alias_analysis): Avoid throw-away allocations of RTL by
using pre-computed values in static_reg_base_value.
* function.c (prepare_function_start): Call
init_alias_once_per_function appropriately.
* rtl.h (init_alias_once_per_function): Declare.
* caller-save (init_caller_save): Restructure slightly to
avoid lots of silly RTL generation.
* expr.c (init_expr_once): Likewise.
* reload1.c (reload_cse_regs_1): Allocate throw-away register
RTL object here. Pass it into children.
(reload_cse_simplify_operands): Use passed-in register RTL
object.
(reload_cse_simplify): Pass through throw-away register
RTL object.
From-SVN: r54442
* tree.h: Forward-declare struct realvaluetype.
(struct tree_real_cst): Point to the REAL_VALUE_TYPE, do not
contain it.
(TREE_REAL_CST_PTR): New accessor.
(TREE_REAL_CST): Update.
* real.h: Include machmode.h.
(realvaluetype): Make it struct realvaluetype, not a typedef.
(build_real): Prototype here.
* tree.c: Include real.h.
(build_real): Allocate the REAL_VALUE_TYPE as a separate
object in GC memory, set TREE_REAL_CST_PTR to point to it.
(build_real_from_int_cst): Use build_real.
* ggc-common.c (ggc_mark_trees): Mark TREE_REAL_CST_PTR of a
REAL_CST.
* builtins.c, c-common.c, c-lex.c, dwarf2out.c, expr.c,
fold-const.c, print-tree.c, real.c, cp/mangle.c, cp/tree.c,
f/bld.c, f/com.c, f/expr.c, f/target.c, java/decl.c,
java/jcf-parse.c, java/parse.y, java/typeck.c: Include real.h.
* Makefile.in, cp/Make-lang.in, f/Make-lang.in,
java/Make-lang.in: Update dependency lists.
From-SVN: r53959
PR middle-end/6600
* expr.c (STORE_MAX_PIECES): New macro to avoid immediate constants
larger than INTEGER_CST. (store_by_pieces_1): Use it here...
(can_store_by_pieces): ... and here to limit the largest mode used.
Add a comment to document this function.
From-SVN: r53706
* expr.c (init_expr_once): Don't use start/end_sequence.
Use rtx_alloc instead of emit_insn.
* toplev.c (lang_dependent_init): Run init_expr_once here ...
(lang_independent_init): ... not here.
From-SVN: r53572
* emit-rtl.c (global_rtl): Update comment.
(const_double_htab, const_double_htab_hash,
const_double_htab_hash, lookup_const_double): New.
(const_int_htab_hash, const_int_htab_eq): Remove const
qualifiers, which cause tons of warnings with RTL checking on.
(gen_rtx_CONST_DOUBLE): Deleted.
(const_double_from_real_value): New function - bears some
resemblance to the former immed_real_const_1.
(immed_double_const): Moved here from varasm.c and
simplified.
(gen_rtx_REG): Make REGNO unsigned to squelch warnings.
(gen_rtx_SUBREG): Use gen_rtx_raw_SUBREG.
(gen_rtx): Use immed_double_const.
(init_emit_once): Initialize the const_double_htab. Use
REAL_VALUE_FROM_INT where possible. Can now use
CONST_DOUBLE_FROM_REAL_VALUE when setting up const_tiny_rtx.
* varasm.c (struct varasm_status): Remove x_const_double_chain.
(const_double_chain, immed_real_const, clear_const_double_mem): Delete.
(immed_double_const, immed_real_const_1): Moved to emit-rtl.c.
(init_varasm_status, mark_varasm_status): Don't touch
x_const_double_chain.
* output.h: Delete prototype for clear_const_double_mem.
* real.h: Make REAL_VALUE_TYPE a macro again. Remove leading
'0' slot from all CONST_DOUBLE_FORMAT definitions. Prototype
const_double_from_real_value, not immed_real_const_1, and use
it to define CONST_DOUBLE_FROM_REAL_VALUE. Define new macro
CONST_DOUBLE_ATOF.
* rtl.h (CONST_DOUBLE_CHAIN): Kill.
(CONST_DOUBLE_LOW, CONST_DOUBLE_HIGH): Adjust.
(gen_rtx_CONST_DOUBLE, immed_real_const): Delete prototypes.
(gen_rtx_REG): Second arg is unsigned.
* gengenrtl.c (special_rtx): Take out CONST_DOUBLE.
(excluded_rtx): New, return true for CONST_DOUBLE.
(genmacro): Write nothing for excluded codes.
* combine.c (combine_simplify_rtx): Use CONST_DOUBLE_FROM_REAL_VALUE.
* expr.c (expand_expr): Likewise.
* ggc-common.c (ggc_mark_rtx_children_1): Don't mark the
CONST_DOUBLE_CHAIN.
* toplev.c (rest_of_compilation): Don't call
clear_const_double_mem.
* config/rs6000/rs6000.c (rs6000_float_const): Delete.
(rs6000_hash_constant): Remove CONST_DOUBLE special case.
(toc_hash_eq): Remove CONST_DOUBLE and LABEL_REF special cases.
* config/rs6000/rs6000-protos.h: Don't prototype rs6000_float_const.
* config/c4x/c4x.md, config/rs6000/rs6000.md: Use CONST_DOUBLE_ATOF.
* config/dsp16xx/dsp16xx.md, config/mips/mips.md,
config/pa/pa.md: Use CONST_DOUBLE_FROM_REAL_VALUE.
* config/sparc/sparc.md, config/sparc/sparc.c: Use immed_double_const.
From-SVN: r53409
* expr.c (compress_float_constant): New.
(emit_move_insn): Use it.
(float_extend_from_mem): New.
(init_expr_once): Initialize it.
* real.c (exact_real_truncate): New.
* config/i386/i386.h (CONST_COSTS): Assume CONST_DOUBLE gets
dropped into memory; penalize for size.
(RTX_COSTS): FLOAT_EXTEND is free.
* config/i386/i386.md (extendsfdf2, extendsfxf2, extendsftf2,
extenddfxf2, extenddftf2): Accept constants and drop them to memory.
From-SVN: r53401
PR optimization/5999, middle-end/5731
* expr.c (expand_expr) [RDIV_EXPR]: Only convert real divisions into
multiplications by reciprocals.
* gcc.c-torture/compile/20020319-1.c: New test.
From-SVN: r51071
* expr.c (expand_expr, case NE_EXPR): Do not call copy_to_reg with
VOIDmode operand. Add compile-time optimization for constant results.
From-SVN: r50734
* doc/rtl.texi (SUBREG_PROMOTED_UNSIGNED_P): Change definition
to take ptr_extend into account as third type of extension.
(SUBREG_PROMOTED_UNSIGNED_SET): Definition of new macro to set bit
fields used by SUBREG_PROMOTED_UNSIGNED_P.
* rtl.h (SUBREG_PROMOTED_UNSIGNED_SET): New macro.
(SUBREG_PROMOTED_UNSIGNED_P): Change to return -1 as well as 0 or 1.
* calls.c (precompute_arguments): Use new macro.
(expand_call): Ditto.
* combine.c (nonzero_bits): Ditto.
(record_promoted_value): Ditto.
* expr.c (store_expr): Ditto.
(expand_expr): Ditto.
* function.c (assign_parms): Ditto.
From-SVN: r50174
