* builtins.c (fold_builtin_strcpy): Merge functionality from
simplify_builtin_strcpy. Add additional len argument. No longer
static. Remove function prototype.
(fold_builtin_strncpy): Likewise integrate functionality from
simplify_builtin_strncpy. Add additional slen argument. No
longer static. Remove function prototype.
(simplify_builtin_strcy, simplify_builtin_strncpy): Delete.
(simplify_builtin_fputs): Rename to fold_builtin_fputs. Change
types of "ignore" and "unlocked" parameters to bool.
(fold_builtin_1): Add additional ignore argument. Call renamed
fold_builtin_fputs to simplify GCC "fputs" and "fputs_unlocked"
builtins. Update arguments to fold_builtin_strncpy and
fold_builtin_strcpy. Add function prototype.
(fold_builtin): Add additional Boolean ignore argument to pass
to fold_builtin_1.
(simplify_builtin): Call fold_builtin_fputs, fold_builtin_strcpy
and fold_builtin_strncpy instead of simplify_builtin_fputs,
simplify_builtin_strcpy and simplify_builtin_strncpy respectively.
* expr.h (simplify_builtin_fputs, simplify_builtin_strcpy,
simplify_builtin_strncpy): Delete function prototypes.
* tree.h (fold_builtin_fputs, fold_builtin_strcpy,
fold_builtin_strncpy): Add function prototypes here.
(fold_builtin): Update function prototype with new "bool ignore".
* tree-ssa-ccp.c (ccp_fold): Update call to fold_builtin.
(ccp_fold_builtin): Update call to fold_builtin. Call
fold_builtin_fputs, fold_builtin_strcpy and fold_builtin_strncpy
instead of simplify_builtin_fputs, simplify_builtin_strcpy and
simplify_builtin_strncpy respectively.
* fold-const.c (fold): Update call to fold_builtin.
From-SVN: r84302
* expr.c (expand_strcpy): Renamed and moved to...
* builtins.c (expand_movstr): ... here. Tweak.
(expand_builtin_strcpy): Adjust. Use movstr if len can't be
computed or has side effects.
(expand_builtin_stpcpy): Likewise. Use strcpy if return value is
unused, or if mempcpy fails. Adjust the return value in the
latter case. Use movstr if everything else fails.
* doc/md.texi (movstr): Document.
(movmemM, clrmemM): Fix explanation of memory block operands.
* config/h8300/h8300.md (stpcpy): Renamed to...
(movstr): ... this. Adjust.
2004-07-07 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.md: Rename movstr*, except for movstrict*, to
movmem* and clrstr* to clrmem*.
2004-06-27 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.c (h8300_reg_class_from_letter): Map 'D' to
GENERAL_REGS, always.
(h8300_swap_into_er6, h8300_swap_into_er6): Handle the case of
getting the stack pointer as addr.
* config/h8300/h8300.h (PREDICATE_CODES): Remove constant rtxes
from general_operand_dst.
* config/h8300/h8300.md (movmd_internal_normal): New, normal-mode
variant of...
(movmd_internal): ... this. Add modes to operands. Disparage `D'
instead of requiring it to match only before reload.
(stpcpy_internal_normal): New, normal-mode variant of...
(stpcpy_internal): ... this. Add modes to operands. Disparage
`D' instead of requiring it to match only before reload.
* config/h8300/h8300-protos.h (h8300_legitimate_address_p): Add
mode argument.
* config/h8300/h8300.h (GO_IF_LEGITIMATE_ADDRESS): Pass it to...
* config/h8300/h8300.c (h8300_legitimate_address_p): Pass it to
h8300_get_index.
* config/h8300/h8300.md (attr type): Add call.
(attr can_delay): If type is call, set it no.
(call, call_value): Set type to call.
2004-06-21 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.md (logicalhi3_sn, logicalsi3_sn): New.
2004-06-16 Alexandre Oliva <aoliva@redhat.com>
* tree.c (get_narrower): Don't narrow integral types into
non-integral types.
* config/h8300/h8300.c (h8300_expand_epilogue): Initialize
frame_size *before* the first use.
* config/h8300/h8300.md (movstrictqi): Reintroduce post-increment
on input.
(peephole2): Don't widen instructions that push SP. Move
decrement of SP to the end of all stm-generating peepholes.
2003-07-24 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md (insv): Prefer to use AND to clear a bitfield
and OR to set it to all ones.
2003-07-24 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md (can_delay): Default to "no" for bit branches.
(call, call_value): Set can_delay to "no".
2003-07-22 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md (extzv): Make subreg check more robust.
2003-07-21 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md (*brabit): Remove.
* config/h8300/h8300.md (*brabc, *brabs): Remove mode from
zero_extract. Use bit_memory_operand as the predicate for
operand 1 and 'WU' as the constraint. Check the difference
between the base length and the final one when deciding which
type of branch to use.
2003-07-21 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md (extzv): Remove mode from operands 0 and 1.
Use convert_move to extend the result for TARGET_H8300SX. Check
for QImode memory references. Optimize the case where the
destination is a paradoxical subreg.
2003-07-21 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md (*movsf_h8sx): Add an r <- G alternative.
* config/h8300/h8300.md (andqi): Remove bclr from h8sx version.
2003-07-21 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.md: Include mova.md
(length_table): Add mova and mova_zero.
* config/h8300/h8300.c (print_operand): Handle '%o'. Print a length
after all constant addresses for '%R', '%X', '%T' and '%S'.
(h8300_mova_length): New function.
(h8300_insn_length_from_table): Use it to handle mova and mova_zero.
* config/h8300/t-h8300 (mova.md): Generate from genmova.sh. Add to
dependencies for s-config, etc.
* config/h8300/gemova.sh: New file.
* config/h8300/mova.md: Generated.
2003-07-20 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.c (h8300_bitfield_length): New.
(nibble_operand): Adjust.
(h8300_binary_length): Handle conditional binary op.
(h8300_insn_length_from_table): Handle bitfield and bitbranch.
* config/h8300/h8300.h: Change constraints W# and Y# to P#>X and
P#<X, respectively. The original P is now IP4>X. Introduced P#>0
and P#<0, unused so far. W and Y are now prefixes to multi-letter
constraints. WU is introduced as a variant of U that requires a
mem, and is therefore considered an EXTRA_MEMORY_CONSTRAINT.
* config/h8300/h8300.md (attr type): Added bitbranch.
(attr length_table): Added bitfield and bitbranch.
(attr length): Compute bitbranch length.
(andqi): Separate pattern for H8300SX. Use bfld for loading the
least-significant bit of a byte.
(brabit, brabc, brabs): New.
(insv, extzv): Emit bfst and bfld on H8300SX.
(bfld, bfst, seq, sne): New.
(bstzhireg, cmpstz, bstz, bistz): New.
(cmpcondbset, condbset, cmpcondbclr, condbclr): New.
(cmpcondbsetreg, condbsetreg, cmpcondbclrreg, condbclrreg): New.
2003-07-11 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.c (h8sx_binary_memory_operator): New function.
(h8sx_unary_memory_operator): New function.
* config/h8300/h8300.h (EXTRA_MEMORY_CONSTRAINT): Disable.
(PREDICATE_CODES): Add h8sx_{unary,binary}_memory_operator.
* config/h8300/h8300.md: Add peepholes to combine reloads and
arithmetic insns.
2003-07-10 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h830.md (cmpqi): Use 'i' rather than 'n' in constraints.
(*cmphi_h8300hs, *addqi3, *addhi3_h8sx, subhi3): Likewise.
(and?i, ior?i, xor?i): Likewise.
2003-07-10 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.c: Move enums and prototypes to head of file.
Various whitespace fixes.
(h8300_constant_length): New function, split out from...
(h8300_displacement_size): ...here. Rename h8300_displacement_length.
(h8300_classify_operand): Use IN_RANGE.
(h8300_classify_operand): Use h8300_constant_length.
(h8300_short_move_mem_p): Tighten size check.
(h8sx_mergeable_memrefs_p): Tighten equality check.
2003-06-30 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.h (TARGET_CPU_CPP_BUILTINS): Define __H8300SX__
for -msx.
* config/h8300/crti.asm: Use .h8300sx or .h8300sxn for -msx code.
* config/h8300/crtn.asm: Likewise.
* config/h8300/lib1funcs.asm: Likewise. Use 32-bit pointers
if __H8300SX__ is defined.
2003-06-27 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300-protos.h (h8300_get_index): Add mode parameter.
* config/h8300/h8300.h (GO_IF_LEGITIMATE_ADDRESS): Update accordingly.
(GO_IF_MODE_DEPENDENT_ADDRESS): Treat POST_DEC, PRE_INC and indexed
addresses as mode-dependent.
* config/h8300/h8300.c (print_operand_address): Update call to
h8300_get_index.
(h8300_get_index): Take a mode argument. Rework to fix an
earlier misunderstanding.
2003-06-26 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.c (zero_extendqisi2): Force the source operand
into a register if TARGET_H8300SX.
(*zero_extendqisi2_h8300hs, *extendqisi2_h8300): Disable for
TARGET_H8300SX. Also disable related define_splits.
(*zero_extendqisi2_h8sx, *extendqisi2_h8sx): New patterns.
2003-06-23 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.c (h8300_rtx_costs): Add h8sx handling.
2003-06-20 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.h (OK_FOR_Z): New macro.
(EXTRA_CONSTRAINT_STR): Check it.
* config/h8300/h8300.c (h8300_classify_operand): Accept null
class arguments.
(h8300_insn_length_from_table): Handle LENGTH_TABLE_MOV_IMM4.
* config/h8300/h8300.md (length_table): Add mov_imm4.
(movqi, movhi): Add Z <- W4 alternatives to h8sx patterns.
2003-06-20 Richard Sandiford <rsandifo@redhat.com>
* genattrtab.c (write_eligible_delay): Allow candidate_insn to
be a label.
* config/h8300/h8300.h (DELAY_SLOT_LENGTH): New macro.
* config/h8300/h8300.c (h8300_reorg): New function.
(TARGET_MACHINE_DEPENDENT_REORG): Define.
* config/h8300/h8300.md (length): Subtract the length of the
delay slot from (pc) when checking the range of forward branches.
(delay_slot, can_delay): New attributes.
(define_delay): Add bra/s handling.
(movmd_internal, return_h8sx, *return_1): Set can_delay to no.
(jump): Add delayed-branch handling.
2003-06-17 Richard Sandiford <rsandifo@redhat.com>
* expr.c (expand_strcpy): New function.
* builtins.c (expand_builtin_strcpy): Fall back on expand_strcpy.
(expand_builtin_stpcpy): Likewise.
* config/h8300/h8300-protos.h (h8sx_split_movmd): Remove.
(h8300_swap_into_er6, h8300_swap_out_of_er6): Declare.
* config/h8300/h8300.c (h8300_reg_class_from_letter): Tweak 'd'
handling to improve register allocation for -fno-omit-frame-pointer.
(h8sx_split_movmd): Delete, moving er6 handling into...
(h8300_swap_into_er6, h8300_swap_out_of_er6): ...these new functions.
* config/h8300/h8300.md (UNSPEC_STPCPY): New unspec constant.
(movmd): Add calls to copy_rtx.
(movmd_internal): In the second alternative, allow the initial and
final destination registers to be different . Update the splitter
accordingly. Call h8300_swap_into_er6 and h8300_swap_out_of_er6
instead of h8sx_split_movmd.
(stpcpy, movsd): New expanders.
(movsd_internal): New define_insn.
2003-06-13 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300-protos.h (h8300_reg_class_from_letter): Declare.
(h8sx_emit_movmd, h8sx_split_movmd): Declare.
* config/h8300/h8300.h (reg_class): Add COUNTER_REGS, SOURCE_REGS
and DESTINATION_REGS.
(REG_CLASS_NAMES, REG_CLASS_CONTENTS): Update accordingly.
(REGNO_REG_CLASS): Map er4, er5 and er6 to the new classes.
(REG_CLASS_FROM_LETTER): Use h8300_reg_class_from_letter.
(h8300_move_ratio): Declare.
(MOVE_RATIO): Use it.
* config/h8300/h8300.c (h8300_move_ratio): New variable.
(h8300_init_once): Initialize it.
(h8300_reg_class_from_letter): New function.
(print_operand): Add an 'm' prefix for printing ".b", ".w" or ".l".
(h8sx_emit_movmd, h8sx_split_movmd): New functions.
* config/h8300/h8300.md (UNSPEC_MOVMD): New unspec constant.
(COUNTER_REG, SOURCE_REG, DESTINATION_REG): New register constants.
(movstrsi, movmd): New expanders.
(movmd_internal): New insn.
2003-06-06 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.h (EXTRA_MEMORY_CONSTRAINT): Define.
2003-06-04 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/elf.h (LINK_SPEC): Use -m h8300sxnelf for -msx -mn.
* config/h8300/h8300.c (asm_file_start): Use .h8300sxn likewise.
2003-06-03 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.c (nibble_operand): Fix warning.
* config/h8300/h8300.md (movstricthi): Set adjust_length to no.
(movsi_h8sx): Likewise here and the normal h8sx movhi pattern.
(movsf_h8300h): Disable for TARGET_H8300SX.
2003-06-03 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.h (PREDICATE_CODES): Add h8300_ldm_parallel,
h8300_stm_parallel and h8300_return_parallel.
* config/h8300/h8300.c (h8300_push_pop, h8300_stack_offset_p,
h8300_ldm_stm_regno, h8300_ldm_stm_parallel, h8300_ldm_parallel,
h8300_stm_parallel, h8300_return_parallel): New functions.
(h8300_expand_prologue): Don't enforce ldm/stm register alignment
if TARGET_H8300SX. Use h8300_push_pop.
(h8300_expand_epilogue): Likewise. Try to merge the return insn
and final pop when generating h8sx code. Always emit some form
of return insn.
* config/h8300/h8300.md: Don't enforce register alignment in
stm peepholes if TARGET_H8300SX.
(ldm_h8300s, stm_h8300s, return_h8sx): New patterns.
(ldm_h8300s_[234], stm_h8300_[234]): Disable.
(epilogue): Expect h8300_expand_epilogue to emit a return insn.
2003-06-03 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/t-h8300 (MULTILIB_OPTIONS): Add a -msx multilib.
(MULTILIB_DIRNAMES): Add a directory for it.
(MULTILIB_MATCHES): Delete.
2003-05-28 Richard Sandiford <rsandifo@redhat.com>
* final.c (walk_alter_subreg): Handle addresses with subregs
inside a ZERO_EXTEND or AND.
* config/h8300/h8300-protos.h (h8300_get_index): Declare.
* config/h8300/h8300.h (INDEX_REG_CLASS): Set to GENERAL_REGS
if TARGET_H8300SX.
(GO_IF_LEGITIMATE_ADDRESS): Use h8300_get_index.
* config/h8300/h8300.c (print_operand_address): Handle @(dd,RnL.b),
@(dd,Rn.w) and @(dd,ERn.L).
(h8300_displacement_size): Take the whole address as argument.
(h8300_classify_operand, h8300_short_move_mem_p): Adjust accordingly.
2003-05-28 Richard Sandiford <rsandifo@redhat.com>
* config/mips/mips-protos.h (h8300_operands_match_p): Declare.
(h8sx_mergeable_memrefs_p): Declare.
* config/h8300/h8300.h (HAVE_POST_DECREMENT): Define to TARGET_H8300SX.
(HAVE_PRE_INCREMENT): Likewise.
(GO_IF_LEGITIMATE_ADDRESS): Accept pre/post increment/decrement
addresses for TARGET_H8300SX,
* config/h8300/h8300.c (print_operand_address): Deal with PRE_INC
and POST_DEC.
(movb_length_table, movl_length_table): New tables.
(movw_length_table): Define to movb_length_table.
(h8300_displacement_size): New, split out from...
(h8300_classify_address): ...here. Handle pre/post inc/dec.
(h8300_short_immediate_length): Allow H8OP_MEM_COMPLEX operands.
(h8300_insn_length_from_table): Add cases for movb, movw and movl.
(h8sx_mergeable_memrefs_p, h8300_operands_match_p): New functions.
(output_plussi): Use add.l #xx:3,Rn and sub.l #xx:3,Rn for h8sx.
(compute_plussi_length, compute_plussi_cc): Update accordingly.
(h8sx_unary_shift_operator): Get the mode from the operator.
(binary_shift_operator): Likewise.
* config/h8300/h8300.md: If a peephole2 applies gen_lowpart to
a memory reference, check whether the reference is offsettable.
(length_table): Add movb, movw and movl.
(movqi): Add new h8sx pattern. Don't force one operand to be a
register when generating h8sx code.
(movhi, movsi, movsf): Likewise.
(movstrictqi): Use the length_table attribute.
(movstricthi): Likewise. Add h8sx alternative for mov.w #xx:3,Rn.
(addqi3): Split into a define_expand and define_insn. Don't accept
memory operands in the expander. Use h8300_operands_match_p to
check for matching operands in the define_insn.
(subqi3, negqi2, one_cmplqi2): Likewise.
(add[hs]i3): Don't accept memory operands in the expander. Likewise
in any patterns that are unused in h8sx code. In the h8sx patterns,
use h8300_operands_match_p to check whether operands match.
(sub[hs]i3, and[hi]3, ior[hs]i3, xor[hs]i3, neg[hsi]3,
one_cmpl[hs]i3): Likewise.
(andqi3, iorqi3, xorqi3): Likewise. Don't call fix_bit_operand
in the expander.
2003-05-23 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300-protos.h (expand_a_shift): Return a bool.
(h8300_insn_length_from_table): Add a second parameter.
(output_h8sx_shift): Declare.
* config/h8300/h8300.h (OK_FOR_W, OK_FOR_Y): New macros.
(EXTRA_CONSTRAINT): Replace with...
(EXTRA_CONSTRAINT_STR): ...this. Use OK_FOR_W and OK_FOR_Y.
(CONSTRAINT_LEN): Define, returning 2 for 'W' and 'Y'.
(PREDICATE_CODES): Add entries for h8sx_unary_shift_operator
and h8sx_binary_shift_operator.
* config/h8300/h8300.c (two_insn_adds_subs_operand): Return false
for TARGET_H8300SX.
(bit_operand): Replace use of EXTRA_CONSTRAINT with OK_FOR_U.
(bit_memory_operand, fix_bit_operand): Likewise.
(h8300_length_table_for_insn): Remove.
(h8300_classify_operand): Fix check for 16-bit operands in 32-bit
instructions.
(h8300_short_immediate_length, h8300_binary_length): New functions.
(h8300_insn_length_from_table): Add an opcodes parameter. Rework.
(output_plussi): Use sub to add negative constants.
(compute_plussi_length): Adjust accordingly.
(h8sx_single_shift_type): New enum.
(h8sx_single_shift, h8sx_unary_shift_operator,
h8sx_binary_shift_operator, output_h8sx_shift): New functions.
(expand_a_shift, expand_a_rotate): Emit nothing if the shift is a
single h8sx instruction. Return false in this case.
* config/h8300/h8300.md (length_table): Add short_immediate.
(length): Pass the operand array to h8300_insn_length_from_table.
(adjust_length): Assume "no" for insns with a length_table attribute.
(*cmphi_h8300hs, cmpsi): Add alternatives for #xx:3.
(*addhi3_h8300hs): Don't use for h8sx.
(*addhi3_h8sx): New pattern, with alternatives for add.w #xx:3
and sub.w #xx:3.
(ashl[qhs]i3, lshr[qhs]i3, ashr[qhs]i3, rotl[qhs]i3): Change operand
1's predicate to nonimmediate_operand. Only skip default expansion
if expand_a_shift or expand_a_rotate returns true. Add new patterns
for single h8sx shift instructions.
2003-05-22 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.c (nibble_operand): Split out of...
(reg_or_nibble_operand): ... this.
* config/h8300/h8300.h (PREDICATE_CODES): Added nibble_operand.
* config/h8300/h8300.md: (mulqihi3, mulhisi3, umulqihi3,
umulhisi3): Introduce expand, and introduce separate insns for
sign- or zero-extended REG and already-extended CONST_INT.
2003-05-20 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.c (h8300_unary_length): Fix miscounting.
* config/h8300/h8300.md (subqi3): Generalize for h8sx.
(subhi3): Likewise. Don't accept immediates for operand 1.
Remove the early clobber from second alternative of the h8300s pattern.
(subsi3): Generalize for h8sx. Force operand 2 into a register
on plain h8300 targets.
(subsi3_h8300): Use h8300_dst_operand for consistency with expander.
(subsi3_h8300h): Generalize for h8sx.
(one_cmplqi2, one_cmplhi2, one_cmplsi2): Likewise.
2003-05-19 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.c (reg_or_nibble_operand): New.
* config/h8300/h8300.h (PREDICATE_CODES): Adjust.
(TARGET_H8300SXMUL): New.
(CONST_OK_FOR_P): New.
(CONST_OK_FOR_LETTER_P): Adjust.
* config/h8300/h8300.md (mulqihi3, mulhisi3, umulqihi3,
umulhisi3): Accept 4-bit immediate on H8SX.
(mulhi3, mulsi3, smulsi3_highpart, umulsi3_highpart): New.
(udivsi3, divhi3, udivsi3, divsi3): New.
2003-05-19 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300-protos.h (h8300_insn_length_from_table): Declare.
* config/h8300/h8300.h (OK_FOR_Q): New macro.
(EXTRA_CONSTRAINT): Use it to check the 'Q' constraint.
(PREDICATE_CODES): Add h8300_src_operand and h8300_dst_operand.
Add ADDRESSOF to the bit_operand entry.
* config/h8300/h8300.c (h8300_dst_operand): New predicate.
(h8300_src_operand): Likewise.
(bit_operand): Check nonimmediate_operand rather than general_operand.
Accept any nonimmediate_operand in h8sx code.
(h8300_and_costs): Initialize operands[1].
(h8300_rtx_costs) <AND>: Return false if the operands aren't valid.
(h8300_operand_class): New enum.
(h8300_length_table): New typedef.
(addb_length_table, addw_length_table, addl_length_table,
logicl_length_table): New tables.
(logicb_length_table, logicw_length_table): New macros.
(h8300_classify_operand, h8300_length_from_table,
h8300_length_table_for_insn, h8300_unary_length,
h8300_insn_length_from_table): New functions.
(output_plussi): Only use adds and subs for register destinations.
Disable redundant clause.
(compute_plussi_cc): Likewise.
(compute_plussi_length): Likewise. Use h8300_length_from_table
to work out the length of an insn.
(output_logical_op): Only use narrower immediate instructions
if the destination is a register.
(compute_logical_op_cc): Likewise.
(compute_logical_op_length): Likewise. Use h8300_length_from_table.
(h8300_adjust_insn_length): Tighten check for reg<->mem moves.
* config/h8300/h8300.md (length_table): New attribute.
(length): When an instruction has a length_table attribute, use
h8300_insn_length_from_table to calculate its default length.
(cmpqi): Use h8300_dst_operand for the first operand and
h8300_src_operand for the second.
(cmphi, *cmphi_h8300hs, cmpsi, negqi2, neghi2, neghi2_h8300h, negsi2,
negsi2_h8300h, addqi3, addhi3, *addhi3_h8300, *addhi3_h8300hs, addsi3,
addsi_h8300, addsi_h8300h, andhi3, andsi3, iorhi3,
iorsi3, xorhi3, xorsi3): Likewise.
(andqi3): Use h8300_src_operand for operand 2. Adjust the condition
so that it allows any combination of operands for TARGET_H8300SX.
(iorqi3, xorqi3): Likewise.
(cmpqi): Use the length_table attribute.
(*cmphi_h8300hs, cmpsi, addqi, *addhi3_h8300hs, andqi3, iorqi3,
xorqi3, negqi2, neghi2_h8300h, negsi2_h8300h): Likewise.
(cmpqi): Add 'Q' constraint.
(*cmphi_h8300hs, cmpsi, addqi, *addhi3_h8300hs, addsi_h8300h, andqi3,
iorqi3, xorqi3, negqi2, neghi2_h8300h, negsi2_h8300h): Likewise.
2003-05-14 Richard Sandiford <rsandifo@redhat.com>
* config/h8300/h8300.h (MASK_H8300SX): New macro.
(TARGET_H8300S): True for both -ms and -msx.
(TARGET_H8300SX): New macro.
(TARGET_SWITCHES): Add entries for -msx and -mno-sx.
* config/h8300/h8300.c (asm_file_start): Write .h8300sx for -msx.
* config/h8300/elf.h (LINK_SPEC): Use -m h8300sxelf for -msx.
* config/h8300/t-h8300 (MULTILIB_MATCHES): Use -ms multilibs for -msx.
[Temporary change.]
2003-02-28 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.h (SIZE_TYPE, PTRDIFF_TYPE): Use short with
16-bit pointers and 32-bit ints.
* config/h8300/h8300.h (LEGITIMATE_CONSTANT_P): Accept
CONST_DOUBLE with mode no wider than SImode.
* config/h8300/h8300.md (extendqisi2_h8300): Add constraints for
output operand.
2003-02-27 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.c (general_operand_src): Match CONSTANT_P_RTX
or SUBREG thereof.
* config/h8300/h8300.h (PREDICATE_CODES): Adjust.
2003-02-22 Alexandre Oliva <aoliva@redhat.com>
* config/h8300/h8300.c (dosize): Truncate sign * size to Pmode.
From-SVN: r84257
2004-06-20 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/16089
* builtins.c (entry_of_function): Move to ...
* cfgrtl.c (entry_of_function): Here and make non-static.
* integrate.c (emit_initial_value_sets): Use entry_of_function.
* rtl.h (entry_of_function): Prototype.
From-SVN: r83415
* c-common.h (has_c_linkage): New interface.
* c-cppbuiltin.c: Include target.h.
(c_cpp_builtins): Define __PRAGMA_REDEFINE_EXTNAME and
__PRAGMA_EXTERN_PREFIX when appropriate.
* c-pragma.c: Include target.h.
Document clarified semantics of symbol-renaming #pragmas.
(handle_pragma_redefine_extname, handle_pragma_extern_prefix)
(maybe_apply_renaming_pragma): Rewrite according to clarified
semantics. Always recognize, but do not necessarily execute.
(init_pragma): Unconditionally register symbol-renaming pragmas.
* system.h: Poison HANDLE_PRAGMA_REDEFINE_EXTNAME
and HANDLE_PRAGMA_EXTERN_PREFIX.
* target.h (struct gcc_target): Add handle_pragma_redefine_extname
and handle_pragma_extern_prefix flags.
* target-def.h: Add defaults for TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME
and TARGET_HANDLE_PRAGMA_EXTERN_PREFIX.
* Makefile.in (c-pragma.o, c-cppbuiltin.o): Update dependencies.
* config/sol2.h: Define TARGET_HANDLE_PRAGMA_REDEFINE_EXTNAME,
not HANDLE_PRAGMA_REDEFINE_EXTNAME.
(TARGET_OS_CPP_BUILTINS): No need to define __PRAGMA_REDEFINE_EXTNAME.
(TRANSFER_FROM_TRAMPOLINE): Prototype mprotect.
* config/alpha/osf.h: Define TARGET_HANDLE_PRAGMA_EXTERN_PREFIX,
not HANDLE_PRAGMA_EXTERN_PREFIX.
(TARGET_OS_CPP_BUILTINS): No need to define __PRAGMA_EXTERN_PREFIX.
* doc/extend.texi (Solaris Pragmas, Tru64 Pragmas): Combine
into one section "Symbol-Renaming Pragmas"; clarify; document
adjusted semantics.
* builtins.c (expand_builtin): Do not issue error for a builtin
with no special case code and no DECL_ASSEMBLER_NAME; just do the
library call.
* c-decl.c (builtin_function): Don't call make_decl_rtl.
* c-objc-common.c (has_c_linkage): Stub implementation.
* cgraphunit.c (cgraph_expand_function)
(cgraph_remove_unreachable_nodes): Don't clear DECL_ARGUMENTS.
cp:
* cp-lang.c (has_c_linkage): Implement.
* cp-tree.h (set_mangled_name_for_decl): Don't prototype.
* decl.c (duplicate_decls): Use COPY_DECL_RTL.
(builtin_function_1): Don't call make_decl_rtl.
(build_cp_library_fn): Don't call set_mangled_name_for_decl.
(grokvardecl): Don't call mangle_decl.
* except.c (nothrow_libfn_p): Look at DECL_NAME, not
DECL_ASSEMBLER_NAME.
* method.c (set_mangled_name_for_decl): Delete.
* name-lookup.c (pushdecl): When a local extern shadows a
file-scope declaration of the same object, give both DECLs the
same DECL_UID.
* typeck.c (cxx_mark_addressable): Don't set TREE_ADDRESSABLE
on DECL_ASSEMBLER_NAME.
testsuite:
* g++.dg/expr/enum1.C, g++.dg/opt/const3.C: Declare abort with
extern "C".
* g++.dg/other/pragma-re-1.C: Add comments.
From-SVN: r83405
* builtins.c (fold_builtin_unordered_cmp): Take an EXP argument
instead of both an ARGLIST and a result TYPE. Handle these C99
comparison functions as "polymorphic" builtins. Also handle
lowering of BUILT_IN_ISUNORDERED to an UNORDERED_EXPR tree node.
(fold_builtin_1): Update calls to fold_builtin_unordered_cmp.
Move handling of BUILT_IN_ISUNORDERED from here to there.
From-SVN: r83404
* Makefile.in (cfgexpand.o): New object file.
(builtins.o): Add dependency on basic-block.h
* builtins.c: Include basic-block.h
(entry_of_function): New function.
(expand_builtin_apply_args, expand_builtin_saveargs): Use it.
* cfgexpand.c: New file.
* expr.c (execute_expand, pass_expand): Kill.
* pass.c (rest_of_compilation): Do not build CFG unless called from
coverage code.
* tree-cfg.c (delete_tree_cfg): Rename to..
(delete_tree_cfg_annotations): ... this one; Do not remove the CFG itself.
* tree-flow.h (delete_tree_cfg_annotations): Declare.
(dleete_tree_cfg): Kill.
* tree-optimize.c (execute_rebuild_bind, pass_rebuild_bind): Kill.
(execute_del_cfg): Rename to...
(execute_free_datastructures): This one...
(pass_del_cfg): Rename to...
(pass_free_datastructures): ... this one; Do not kill PROP_cfg.
(init_tree_optimization_passes): Make cfg build and profiling to happen
unconditionally.
* tree-mudflap.c (mf_decl_cache_locals): Skip labels before
inserting the cache variables.
* tree-mudflap.c: Include headers to make basic_block available.
Move functions around such that related functions are near each
other. Add prototypes for all static functions. Add comments
briefly explaining what IR the mudflap1 and mudflap2 work on and
what they do.
(mudflap_function_decls): Rename to execute_mudflap_function_decls.
(mudflap_function_ops): Rename to execute_mudflap_function_ops.
(pass_mudflap_1, pass_mudflap_2): Update.
(mf_decl_cache_locals): Make it work on the CFG instead of the saved
function tree.
(mf_build_check_statement_for): Make it work on the CFG.
(mf_xform_derefs_1): Likewise. Cleanup code style.
(mf_xform_derefs): Likewise.
* tree-cfg.c (label_to_block): Invent the label destination for
undefined labels.
(cleanup_dead_labels): Update table in the case label_to_block added
new label.
From-SVN: r83385
* fold-const.c (omit_two_operands): New function.
* tree.h (omit_two_operands): Prototype here.
* builtins.c (fold_builtin_unordered_cmp): New function to lower
C99 unordered comparison builtins to the appropriate tree nodes.
(fold_builtin_1): Use fold_builtin_unordered_cmp to lower
BUILT_IN_ISGREATER, BUILT_IN_ISGREATEREQUAL, BUILT_IN_ISLESS,
BUILT_IN_ISLESSEQUAL and BUILT_IN_ISLESSGREATER. Manually lower
BUILT_IN_ISUNORDERED comparisons to an UNORDERED_EXPR tree node.
(simplify_builtin_memcmp, simplify_builtin_strncmp,
simplify_builtin_strncat, simplify_builtin_strspn): Use the new
omit_two_operands function to build the required COMPOUND_EXPRs.
From-SVN: r83040
* builtins.c (expand_builtin): Fall back to library function call for
conj, conjf, conjl, creal, crealf, creall, cimag, cimagf and cimagl.
(fold_builtin_1): Lower built-ins BUILT_IN_CONJ{,F,L} to CONJ_EXPR,
BUILT_IN_CREAL{,F,L} to REALPART_EXPR, and BUILT_IN_CIMAG{,F,L} to
IMAGPART_EXPR respectively.
From-SVN: r82938
* fold-const.c (fold_abs_const): Make extern.
* tree.h (fold_abs_const): Prototype here.
* builtins.c (fold_builtin_fabs): New function to transform
fabs, fabsf and fabsl builtins into ABS_EXPR tree nodes.
(fold_builtin_abs): New function to transform abs, labs, llabs
and imaxabs builtins into ABS_EXPR tree nodes.
(expand_builtin): Fall back to a function call for abs, labs,
llabs and imaxabs builtins that survive constant folding.
(fold_builtin_1): Call fold_builtin_fabs for FABS, FABSF and
FABSL, and fold_builtin_abs for ABS, LABS, LLABS and IMAXABS.
From-SVN: r82916
* target.h: Add gimplify_va_arg_expr hook.
* target-def.h: Add TARGET_GIMPLIFY_VA_ARG_EXPR.
* fold-const.c (build_fold_addr_expr)
(build_fold_addr_expr_with_type): Move from gimplify.c.
* tree.h: Declare them.
* gimplify.c (gimplify_and_add): New fn.
(build_addr_expr, build_addr_expr_with_type): Move to fold-const.c.
(gimplify_array_ref_to_plus, gimplify_modify_expr)
(gimplify_expr): Use build_fold_*.
(copy_if_shared_r): Only mark VA_ARG_EXPR volatile if we
don't know how to gimplify it.
* builtins.c (std_gimplify_va_arg_expr): New fn.
(dummy_object): New static fn.
(gimplify_va_arg_expr): New fn.
(stabilize_va_list): Use build_fold_*.
* tree-gimple.h: Declare new fns.
* config/i386/i386.c (TARGET_GIMPLIFY_VA_ARG_EXPR): Define.
(ix86_gimplify_va_arg): New fn.
* config/i386/ia64.c (TARGET_GIMPLIFY_VA_ARG_EXPR): Define.
(ia64_gimplify_va_arg): New fn.
* config/i386/rs6000.c (rs6000_gimplify_va_arg): New fn.
(TARGET_GIMPLIFY_VA_ARG_EXPR): Define.
* config/i386/sparc.c (sparc_gimplify_va_arg): New fn.
* alias.c (get_varargs_alias_set): Just return 0 for now.
* c-objc-common.c (c_tree_printer): Improve handling of %T.
From-SVN: r82838
* real.c (real_copysign): New function to implement libm's copysign.
* real.h (real_copysign): Prototype here.
* fold-const.c (tree_expr_nonnegative_p): The result of sqrt, sqrtf
and sqrtl can be negative, as sqrt(-0.0) = -0.0. Correct whitespace.
* builtins.c (fold_builtin_isascii, fold_builtin_toascii,
fold_builtin_isdigit): Add function prototypes.
(fold_builtin_copysign): New function to fold copysign, copysignf
and copysignl. Optimize copysign(x,x) as x. Evaluate copysign of
constant arguments at compile-time using real_copysign. Fold
copysign(X,Y) as fabs(X) if Y is always non-negative.
(fold_builtin_1): Correct minor whitespace/style issues. Call
fold_builtin_copysign for BUILT_IN_COPYSIGN{,F,L}.
* gcc.dg/builtins-41.c: New test case.
* gcc.dg/builtins-42.c: New test case.
From-SVN: r82721
PR tree-optimization/14197
* builtins.c: Include "tree-gimple.h"
(readonly_data_expr): Use get_base_address. Make sure to call
decl_readonly_section only on trees it can handle.
* tree-gimple.c (get_base_address): Accept STRING_CST and
CONSTRUCTOR expressions.
* Makefile.in: Update dependencies.
From-SVN: r82209
* optabs.h (enum optab_index): Add new OTI_fmod and OTI_drem.
(fmod_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize fmod_optab and drem_optab.
* genopinit.c (optabs): Implement fmod_optab and drem_optab
using fmod?f3 and drem?f3 patterns.
* builtins.c (expand_builtin_mathfn_2): Handle BUILT_IN_FMOD{,F,L}
using fmod_optab and BUILT_IN_DREM{,F,L} using drem_optab.
(expand_builtin): Expand BUILT_IN_FMOD{,F,L} and
BUILT_IN_DREM{,F,L} using expand_builtin_mathfn_2 if
flag_unsafe_math_optimizations is set.
* reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_FPREM_F,
UNSPEC_FPREM_U, UNSPEC_FPREM1_F and UNSPEC_FPREM1_U.
* config/i386/i386.c (ix86_emit_fp_unordered_jump): New function.
* config/i386/i386-protos.h (ix86_emit_fp_unordered_jump):
Prototype here.
* config/i386/i386.md (UNSPEC_FPREM_F, UNSPEC_FPREM_U,
UNSPEC_FPREM1_F, UNSPEC_FPREM1_U): New unspecs to represent x87's
fprem and fprem1 instructions.
(*x86_fnstsw_1): Change input parameter to (reg:CCFP 18).
Rename insn definition to x86_fnstsw_1.
(fpremxf4, fprem1xf4): New patterns to implement fprem and fprem1
x87 instructions.
(fmodsf3, fmoddf3, fmodxf3): New expanders to implement fmodf, fmod
and fmodl built-ins as inline x87 intrinsics.
(dremsf3, dremdf3, dremxf3): New expanders to implement dremf, drem
and dreml built-ins as inline x87 intrinsics.
* testsuite/gcc.dg/builtins-40.c: New test.
From-SVN: r81555
* builtins.c (fold_fixed_mathfn): New function.
(fold_builtin_lround, fold_builtin): Use it.
testsuite:
* gcc.dg/torture/builtin-integral-1.c: Reorg and add more cases.
* gcc.dg/torture/builtin-convert-3.c: New test.
From-SVN: r81403
* builtins.c (expand_builtin_update_setjmp_buf): New function.
(expand_builtin, case BUILT_IN_UPDATE_SETJMP_BUF): New case.
* builtins.def (BUILT_IN_UPDATE_SETJMP_BUF): New code.
From-SVN: r81198
2004-04-20 Uros Bizjak <uros@kss-loka.si>
* optabs.h (enum optab_index): Add new OTI_asin and OTI_acos.
(asin_optab, acos_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize asin_optab and acos_optab.
* genopinit.c (optabs): Implement asin_optab and acos_optab
using asin?f2 and acos?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_ASIN{,F,L}
using asin_optab, and BUILT_IN_ACOS{,F,L} using acos_optab.
(expand_builtin): Expand BUILT_IN_ASIN{,F,L} and BUILT_IN_ACOS{,F,L}
using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* config/i386/i386.md (asindf2, asinsf2, asinxf2, acosdf2,
acossf2, acosxf2): New expanders to implement asin, asinf, asinl,
acos, acosf and acosl built-ins as inline x87 intrinsics.
* gcc.dg/builtins-39.c: New test.
From-SVN: r80921
2004-04-14 Uros Bizjak <uros@kss-loka.si>
* optabs.h (enum optab_index): Add new OTI_logb and OTI_ilogb.
(logb_optab, ilogb_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize logb_optab and ilogb_optab.
* genopinit.c (optabs): Implement logb_optab and ilogb_optab
using logb?f2 and ilogb?i2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOGB{,F,L}
using logb_optab, and BUILT_IN_ILOGB{,F,L} using ilogb_optab.
(expand_builtin): Expand BUILT_IN_LOGB{,F,L} and BUILT_IN_ILOGB{,F,L}
using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* reg-stack.c (subst_stack_regs_pat): Handle UNSPEC_XTRACT_FRACT
and UNSPEC_XTRACT_EXP.
* config/i386/i386.md (*fxtractdf3, *fxtractsf3, *fxtractxf3): New
patterns to implement fxtract x87 instruction.
(logbdf2, logbsf2, logbxf2, ilogbsi2): New expanders to implement
logb, logbf, logbl, ilogb, ilogbf and ilogbl built-ins as inline x87
intrinsics.
(UNSPEC_XTRACT_FRACT, UNSPEC_XTRACT_EXP): New unspecs to represent
x87's fxtract insn.
* gcc.dg/builtins-38.c: New test.
From-SVN: r80709
* real.h (struct real_value): Use the same type for all
bitfields. Rename exp to uexp.
(REAL_EXP, SET_REAL_EXP): New accessor macros for uexp.
Adjust all uses of exp...
* builtins.c: ... here, ...
* emit-rtl.c: ... here, and ...
* real.c: ... and here.
From-SVN: r79802
2004-03-10 Uros Bizjak <uros@kss-loka.si>
* optabs.h (enum optab_index): Add new OTI_exp10 and OTI_exp2.
(exp10_optab, exp2_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize exp10_optab and exp2_optab.
* genopinit.c (optabs): Implement exp10_optab and exp2_optab
using exp10?f2 and exp2?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_EXP10{,F,L}
using exp10_optab, and BUILT_IN_EXP2{,F,L} using exp2_optab.
(expand_builtin): Expand BUILT_IN_EXP10{,F,L} and BUILT_IN_EXP2{,F,L}
using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* config/i386/i386.md (exp10sf2, exp10df2, exp10xf2, exp2sf2,
exp2df2, exp2xf2): New patterns to implement exp10, exp10f, exp10l,
exp2, exp2f and exp2l built-ins as inline x87 intrinsics.
* gcc.dg/builtins-34.c: New test.
From-SVN: r79279
2004-02-11 Uros Bizjak <uros@kss-loka.si>
* optabs.h (enum optab_index): Add new OTI_log10 and OTI_log2.
(log10_optab, log2_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize log10_optab and log2_optab.
* genopinit.c (optabs): Implement log10_optab and log2_optab
using log10?f2 and log2?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_LOG10{,F,L}
using log10_optab, and BUILT_IN_LOG2{,F,L} using log2_optab.
(expand_builtin): Expand BUILT_IN_LOG10{,F,L} and BUILT_IN_LOG2{,F,L}
using expand_builtin_mathfn if flag_unsafe_math_optimizations is set.
* config/i386/i386.md (log10sf2, log10df2, log10xf2, log2sf2,
log2df2, log2xf2): New patterns to implement log10, log10f, log10l,
log2, log2f and log2l built-ins as inline x87 intrinsics.
* gcc.dg/builtins-33.c: New test.
From-SVN: r77675
* builtins.c (expand_builtin_signbit): Use extract_bit_field instead
of gen_highpart or gen_lowpart when the floating point format is
wider than the result mode.
Co-Authored-By: Ulrich Weigand <uweigand@de.ibm.com>
From-SVN: r77439
* builtins.def (BUILT_IN_SIGNBIT, BUILT_IN_SIGNBITF,
BUILT_IN_SIGNBITL): New GCC builtins.
* builtins.c (expand_builtin_signbit): New function to RTL expand
calls to signbit, signbitf and signbitl as inline intrinsics.
(expand_builtin): Call expand_builtin_signbit for BUILT_IN_SIGNBIT*.
(fold_builtin_signbit): New function to perform constant folding
of signbit, signbitf and signbitl.
(fold_builtin): Call fold_builtin_signbit for BUILT_IN_SIGNBIT*.
* doc/extend.texi: Document new signbit{,f,l} builtins.
* gcc.dg/builtins-1.c: Also test for __builtin_signbit{,f,l}.
* gcc.dg/builtins-31.c: New testcase.
* gcc.dg/builtins-32.c: New testcase.
From-SVN: r77070
* real.c (real_floor, real_ceil): Tweak to allow input and output
arguments to overlap.
(real_round): New function to implement round(3m) semantics.
* real.h (real_round): Prototype here.
* builtins.c (fold_builtin_round): New function to constant fold
round, roundf and roundl.
(fold_builtin): Call fold_builtin_round for BUILT_IN_ROUND{,F,L}.
* gcc.dg/builtins-29.c: New test case.
From-SVN: r76428
* builtins.c (expand_builtin_expect_jump): Simplify logic. Handle
conditional jumps that drop through to unconditional jumps or the
end of the sequence.
From-SVN: r75780
PR middle-end/13392
* builtins.c (expand_builtin_expect_jump): Handle conditional jumps
to drop through label. Don't fall back to SCC even when conditional
jump has not been found.
* g++.dg/opt/expect2.C: New test.
From-SVN: r75684
PR c++/13239
* builtins.c (expand_builtin_expect_jump): Update
TREE_VALUE (arglist) if unsave_expr_now langhook
created a new tree.
* g++.dg/opt/expect1.C: New test.
From-SVN: r74832
PR middle-end/11151
* function.h (struct function): New field 'x_naked_return_label'.
* function.c (free_after_compilation): Set it to NULL.
(expand_function_end): Emit 'naked_return_label' if it exists.
* rtl.h (expand_naked_return): Declare.
* stmt.c (expand_naked_return): New function to generate a
jump to 'naked_return_label'.
* builtins.c (expand_builtin_return): Call expand_naked_return
instead of expand_null_return.
* config/sparc/sparc.md (untyped_return): Likewise.
From-SVN: r74312
PR middle-end/8028
PR middle-end/9890
PR middle-end/11151
PR middle-end/12210
PR middle-end/12503
PR middle-end/12692
* builtins.c (expand_builtin_apply): Use virtual_outgoing_args_rtx
as the base address to copy the memory arguments to.
From-SVN: r73976
* builtins.c (fold_builtin_memcpy, fold_builtin_mempcpy,
fold_builtin_memmove, fold_builtin_strcpy, fold_builtin_strncpy,
fold_builtin_memcmp, fold_builtin_strcmp, fold_builtin_strncmp):
New functions.
(expand_builtin_memcpy): Use integer_zerop instead of testing
host_integerp and tree_low_cst directly. Move misapplied hunk
for optimization wher SRC and DEST point to the same location.
(expand_builtin_mempcpy): From here.
(expand_builtin_memmove): Use integer_zerop instead of testing
host_integerp and tree_low_cst_directly.
(expand_builtin_memset): Likewise.
(expand_builtin_memcmp): Likewise (and for integer_onep).
(expand_builtin_strncmp): Likewise.
(fold_builtin): Call the appropriate fold_builtin_foo functions
to optimize memcpy, mempcpy, memmove, strcpy, strncpy, memcmp,
strcmp and strncmp.
From-SVN: r72547
* builtins.c (expand_builtin_strcmp): Defend against the possibility
that gen_cmpstrsi may fail: Stabilize the argument list against
re-evaluation and expand the library call directly using this saved
argument list if a cmpstrsi sequence can't be generated.
(expand_builtin_strncmp): Likewise.
* config/i386/i386.md (cmpstrsi, movstrsi): Disable with -Os.
* gcc.c-torture/execute/string-opt-8.c: Don't test optimizations
that inline strncmp as cmpstrsi on i386 when compiled with -Os.
From-SVN: r72380
* builtins.c (expand_builtin_memcpy): Optimize case when the two
pointer arguments are the equal, non-volatile and side-effect free.
(expand_builtin_mempcpy): Likewise.
(expand_builtin_memmove): Likewise.
(expand_builtin_strcpy): Likewise.
(expand_builtin_memcmp): Likewise.
(expand_builtin_strcmp): Likewise.
(expand_builtin_strncmp): Likewise.
* gcc.c-torture/execute/string-opt-18.c: New testcase.
From-SVN: r72335
* builtins.c (builtin_mathfn_code): Generalize to check whether
the call is to any built-in function by comparing the call's
argument list against the builtin decl's function type.
From-SVN: r72327
* target.h (init_libfuncs): New hook.
* target-def.h: Default TARGET_INIT_BUILTINS and
TARGET_INIT_LIBFUNCS to hook_void_void. Add
TARGET_INIT_LIBFUNCS to TARGET_INITIALIZER.
* builtins.c (default_init_builtins): Delete.
* expr.h (default_init_builtins): Delete prototype.
* doc/tm.texi: Document TARGET_INIT_LIBFUNCS and US_SOFTWARE_GOFAST.
Tweak documentation of TARGET_FLOAT_LIB_COMPARE_RETURNS_BOOL.
Remove documentation of INIT_TARGET_OPTABS, MULSI3_LIBCALL,
DIVSI3_LIBCALL, UDIVSI3_LIBCALL, MODSI3_LIBCALL, UMODSI3_LIBCALL,
MULDI3_LIBCALL, DIVDI3_LIBCALL, UDIVDI3_LIBCALL, MODDI3_LIBCALL,
and UMODDI3_LIBCALL,
* Makefile.in (optabs.o): Depends on target.h.
* defaults.h: Provide default for FLOAT_LIB_COMPARE_RETURNS_BOOL.
* optabs.c: Include target.h.
(prepare_float_lib_cmp): No need for #ifdef around use of
FLOAT_LIB_COMPARE_RETURNS_BOOL.
(set_optab_libfunc): New function.
(init_optabs): Delete use of all *_LIBCALL defines.
Call targetm.init_libfuncs not INIT_TARGET_OPTABS.
* optabs.h: Prototype set_optab_libfunc.
* config.gcc: Remove all references to pa/long_double.h,
ia64/hpux_longdouble.h, and gofast.h.
(mips-*-*): When --enable-gofast, just add US_SOFTWARE_GOFAST
to tm_defines; don't set INIT_SUBTARGET_OPTABS or change tm_file.
* config/alpha/alpha.c, config/c4x/c4x.c, config/cris/cris.c
* config/frv/frv.c, config/h8300/h8300.c, config/i860/i860.c
* config/ia64/ia64.c, config/ip2k/ip2k.c, config/m68hc11/m68hc11.c
* config/mips/mips.c, config/pa/pa.c, config/rs6000/rs6000.c
* config/sparc/sparc.c, config/vax/vax.c:
Provide a definition for TARGET_INIT_LIBFUNCS. Where
necessary, include optabs.h, libfuncs.h, and/or config/gofast.h.
* config/alpha/unicosmk.h, config/alpha/vms.h, config/c4x/c4x.h
* config/avr/avr.h, config/cris/cris.h, config/frv/frv.h
* config/h8300/h8300.h, config/i860/i860.h, config/ip2k/ip2k.h
* config/iq2000/iq2000.h, config/m68hc11/m68hc11.h, config/mips/mips.h
* config/rs6000/aix.h, config/rs6000/sysv4.h, config/sparc/elf.h
* config/sparc/lite.h, config/sparc/netbsd-elf.h, config/sparc/sol2.h
* config/sparc/sparc.h, config/v850/v850.h, config/vax/vax.h
* config/vax/elf.h: Don't define or use INIT_TARGET_OPTABS,
INIT_SUBTARGET_OPTABS, or any *_LIBCALL macros.
* config/ia64/hpux.h: Redefine INTEL_EXTENDED_IEEE_FORMAT to 0.
Set TARGET_INIT_LIBFUNCS and FLOAT_LIB_COMPARE_RETURNS_BOOL here.
* config/pa/pa-hpux.h: Define LONG_DOUBLE_TYPE_SIZE,
HPUX_LONG_DOUBLE_LIBRARY, and FLOAT_LIB_COMPARE_RETURNS_BOOL here.
* config/ia64/hpux_longdouble.h, config/pa/long_double.h: Delete.
* config/rs6000/xcoff.h: Don't define RS6000_ITRUNC nor RS6000_UITRUNC.
* config/sparc/sparc.h: Default SUN_CONVERSION_LIBFUNCS and
SUN_INTEGER_MULTIPLY_64 to 0.
* config/sparc/sol2.h: Redefine SUN_CONVERSION_LIBFUNCS and
SUN_INTEGER_MULTIPLY_64 to 1.
* config/sparc/elf.h: Redefine SUN_CONVERSION_LIBFUNCS and
SUN_INTEGER_MULTIPLY_64 to 0.
* config/sparc/lite.h, config/sparc/liteelf.h, config/sparc/sp86x-elf.h:
Define US_SOFTWARE_GOFAST.
* config/vax/vax.h: Default TARGET_ELF to 0.
* config/vax/elf.h: Redefine TARGET_ELF to 1.
* config/gofast.h: Don't define any macros here. Provide one
static function, gofast_maybe_init_libfuncs, which does what
INIT_GOFAST_LIBFUNCS used to do but only if US_SOFTWARE_GOFAST
is already defined. Do not clear negation libfuncs. Do
not mess with HFmode, XFmode, or TFmode libfuncs.
* config/avr/avr.c (avr_init_once): #if 0 out; mark FIXME.
From-SVN: r72009
* builtins.c (fold_builtin_logarithm): if N can't be truncated to
MODE exactly, then only convert logN(N) -> 1.0 if
flag_unsafe_math_optimizations is set.
From-SVN: r71322
* builtins.c (real_dconstp, fold_builtin_logarithm,
fold_builtin_exponent): New, split out from fold_builtin. Also
generalize to add log2, log10, exp2 and exp10/pow10 equivalents.
* emit-rtl.c (dconst3, dconst10, dconstthird): New.
(init_emit_once): Initialize new dconsts, use ARRAY_SIZE in lieu
of hardcoded array size.
* fold-const.c (fold): Add cases for exp2, exp10 and pow10.
(tree_expr_nonnegative_p): Likewise.
* real.h (dconst3, dconst10, dconstthird): New.
testsuite:
* gcc.dg/torture/builtin-explog-1.c: New testcase.
From-SVN: r71252
* targhooks.c: New file.
* targhooks.h: New file.
* Makefile.in: Add targhooks.o support.
(function.o): Depend on$(TARGET_H).
(stmt.o): Likewise.
(combine.o): Depend on $(TREE_H) and $(TARGET_H).
* builtins.c (apply_args_size, expand_builtin_apply_args_1,
expand_builtin_apply): Convert to calls.struct_value_rtx hook.
(expand_builtin_saveregs): Convert to
calls.expand_builtin_saveregs hook.
* c-decl.c (start_decl): Handle new calls.promote_prototypes hook
here, instead of ...
(get_parm_info) ... here.
(store_parm_decls_oldstyle): Convert to calls.promote_prototypes
hook.
(finish_function): Handle calls.promote_prototypes hook here too.
* c-typeck.c (convert_arguments): Convert to
calls.promote_prototypes hook.
(c_convert_parm_for_inlining): Likewise.
* calls.c (initialize_argument_information): Convert to
calls.promote_function_args hook.
(expand_call): Convert to calls.struct_value_rtx,
calls.strict_argument_naming,
calls.pretend_outgoing_varargs_named, and
calls.promote_function_return hooks. Pass fndecl to
aggregate_value_p. Initialize CUMULATIVE_ARGS before calling
hooks, so they can use that.
(emit_library_call_value_1): Likewise.
* combine.c (setup_incoming_promotions): Convert to
calls.promote_function_args hook.
* emit-rtl.c: Convert to calls.struct_value_rtx hook.
* expr.c (expand_assignment): Pass call to aggregate_value_p.
(expand_expr): Likewise.
* expr.h: Remove support for SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
RETURN_IN_MEMORY macro defaults.
* final.c (profile_function): Convert to calls.struct_value_rtx
hook.
* function.c (aggregate_value_p): Accept function type tree as
second parameter; try to deduce fntype from it. Convert to
calls.return_in_memory hook.
(assign_parms): Convert to calls.setup_incoming_varargs,
calls.strict_argument_naming, calls.promote_function_args,
calls.pretend_outgoing_varargs_named hooks. Pass fndecl to
aggregate_value_p.
(expand_function_start): Likewise. Convert to
calls.struct_value_rtx hook.
(expand_function_end): Convert to calls.promote_function_return hook.
(allocate_struct_function): Pass fndecl to aggregate_value_p.
* hard-reg-set.h: Update comments to new hook names.
* integrate.c (expand_inline_function): Pass fndecl to aggregate_value_p.
* reg-stack.c (stack_result): Likewise.
* rtl.h (struct_value_rtx, struct_value_incoming_rtx): Delete.
* stmt.c (expand_value_return): Convert to
calls.promote_function_return hook.
* target-def.h: Add TARGET_PROMOTE_FUNCTION_ARGS,
TARGET_PROMOTE_FUNCTION_RETURN, TARGET_PROMOTE_PROTOTYPES,
TARGET_STRUCT_VALUE_RTX, TARGET_RETURN_IN_MEMORY,
TARGET_EXPAND_BUILTIN_SAVEREGS, TARGET_SETUP_INCOMING_VARARGS,
TARGET_STRICT_ARGUMENT_NAMING,
TARGET_PRETEND_OUTGOING_VARARGS_NAMED, and TARGET_CALLS.
* target.h: Likewise.
* tree.h (aggregate_value_p): Also takes a tree to deduce function
attributes from (for target hooks).
* doc/tm.texi (PROMOTE_FUNCTION_ARGS, PROMOTE_FUNCTION_RETURN,
PROMOTE_PROTOTYPES, RETURN_IN_MEMORY, STRUCT_VALUE_REGNUM,
STRUCT_VALUE, STRUCT_VALUE_INCOMING_REGNUM, STRUCT_VALUE_INCOMING,
EXPAND_BUILTIN_SAVEREGS, SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED): Convert
to hooks.
* config/alpha/alpha.c (alpha_output_mi_thunk_osf): Pass function
to aggregate_value_p.
* config/arm/arm.c (arm_init_cumulative_args,
arm_output_mi_thunk): Likewise.
* config/i386/i386.c (ix86_return_pops_args, x86_this_parameter):
Likewise.
* config/mips/mips.c (mips_save_reg_p, mips_expand_prologue,
mips_can_use_return_insn): Likewise.
* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
* config/s390/s390.c (s390_output_mi_thunk): Likewise.
* config/sparc/sparc.c (sparc_output_mi_thunk): Pass function to
aggregate_value_p.
* config/story16/stormy16.c (xstormy16_asm_output_mi_thunk): Pass
function to aggregate_value_p.
* objc/objc-act.c (generate_struct_by_value_array): Pass NULL to
aggregate_value_p.
* config/sh/sh-protos.h (sh_builtin_saveregs): Remove.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p, sh_function_arg,
sh_function_arg_advance, sh_pass_in_reg_p): New. * config/sh/sh.c
(sh_handle_renesas_attribute, sh_promote_prototypes,
sh_struct_value_rtx, sh_return_in_memory, sh_builtin_saveregs,
sh_setup_incoming_varargs, sh_strict_argument_naming,
sh_pretend_outgoing_varargs_named): New decls.
(targetm): Add new hooks.
(calc_live_regs): Save MACL and MACH if the function has the
renesas attribute.
(sh_expand_prologue): Support renesas attribute.
(sh_builtin_saveregs): Make static.
(sh_build_va_list): Support renesas attribute.
(sh_va_start): Likewise.
(sh_va_arg): Likewise.
(sh_promote_prototypes): New.
(sh_function_arg): New, moved from sh.h. Support renesas
attribute.
(sh_function_arg_advance): Likewise.
(sh_return_in_memory): Likewise.
(sh_strict_argument_naming): Likewise.
(sh_pretend_outgoing_varargs_named): Likewise.
(sh_struct_value_rtx): New.
(sh_attribute): Add renesas attribute.
(sh_handle_renesas_attribute): New.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p): New.
(sh_ms_bitfield_layout_p): Support renesas attribute also.
(sh_output_mi_thunk): Pass function to aggregate_value_p. *
config/sh/sh.h (TARGET_SWITCHES): Add -mrenesas as an alias for
-mhitachi.
(STRUCT_VALUE_REGNUM, STRUCT_VALUE, RETURN_IN_MEMORY): Moved to
target hooks.
(sh_args): Add renesas_abi flag.
(INIT_CUMULATIVE_ARGS): Set it. Pass fndecl to aggregate_value_p.
(FUNCTION_ARG_ADVANCE, FUNCTION_ARG): Move to sh.c.
(PASS_IN_REG_P): Support renesas attribute. Pass DF and TF on the
stack for the renesas abi.
(STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
SETUP_INCOMING_VARARGS, EXPAND_BUILTIN_SAVEREGS,
PROMOTE_PROTOTYPES): Moved to sh.c. * config/sh/sh.md (call): Set
call cookie to indicate renesas calls.
* decl.c (finish_function): Pass fndecl to aggregate_value_p.
* misc.c (default_pass_by_ref): Convert to calls.return_in_memory
hook.
From-SVN: r71048
* builtins.c (expand_builtin_setjmp): Use emit_jump to jump around
the != 0 case, which ensures pending stack adjustments are flushed.
From-SVN: r70958
* builtins.c (expand_builtin_expect_jump): Save pending_stack_adjust
and restore it if returning NULL.
* gcc.dg/20030826-2.c: New test.
From-SVN: r70844
* builtins.c (fold_builtin_bitop): New function to perform constant
folding of ffs, clz, ctz, popcount and parity builtin functions
and their long and long long variants (such as ffsl and ffsll).
(fold_builtin): fold_builtin_bitop when appropriate.
* simplify-rtx.c (simplify_unary_operation): Honor both
CLZ_DEFINED_VALUE_AT_ZERO and CTZ_DEFINED_VALUE_AT_ZERO when
evaluating clz and ctz at compile-time, for operands wider
than HOST_WIDE_INT.
From-SVN: r70806
* builtins.c (expand_builtin_mathfn): Rearrange so that we only
return 0 for invalid argument types. Instead drop through to a
call of expand_call at the bottom of function. If op is SQRT,
try attaching a SQRT rtx as the REQ_EQUAL note of the libcall.
From-SVN: r70792
* builtins.c (expand_builtin): When not optimizing, call the library
function for all builtins that have library functions (except alloca).
From-SVN: r70195
* fold-const.c (fold <MULT_EXPR>): Optimize both x*pow(x,c) and
pow(x,c)*x as pow(x,c+1) for constant values c. Optimize x*x
as pow(x,2.0) when the latter will be expanded back into x*x.
(fold <RDIV_EXPR>): Optimize pow(x,c)/x as pow(x,c-1).
* builtins.c (expand_builtin_pow): Ignore flag_errno_math as
pow can never set errno when used with an integer exponent.
Always use expand_powi when exponent is -1, 0, 1 or 2.
(fold_builtin): Don't rewrite pow(x,2.0) as x*x nor pow(x,-2.0)
as 1.0/(x*x). This avoids unbounded recursion as we now prefer
the pow forms of these expressions.
* gcc.dg/builtins-27.c: New test case.
From-SVN: r70030
* builtins.def (BUILT_IN_PRINTF, BUILT_IN_FPRINTF): Changed from
front-end builtins to normal builtins, using DEF_LIB_BUILTIN.
(BUILT_IN_PRINTF_UNLOCKED, BUILT_IN_FPRINTF_UNLOCKED): Changed
from front-end to normal builtins, using DEF_EXT_LIB_BUILTIN.
(DEF_FRONT_END_LIB_BUILTIN): Delete.
(DEF_EXT_FRONT_END_LIB_BUILTIN): Delete.
(BUILT_IN_FWRITE_UNLOCKED): Wrap long line.
* builtins.c (build_string_literal): New function to construct
a char* pointer to a string literal.
(expand_builtin_fputs): Change 2nd argument from "int ignore" to
"rtx target" to be consistent with other expand_builtin_* functions.
Change 3rd argument from "int unlocked" to "bool unlocked".
(expand_builtin_printf): Rewrite of c_expand_builtin_printf from
c-common.c to avoid front-end dependencies. Optimize printf("")
as a no-op when the result isn't required. Handle embedded NULs
in format string.
(expand_builtin_fprintf): A rewrite of c_expand_builtin_fprintf
from c-common.c to avoid front-end dependencies. Likewise, optimize
fprintf(fp,"") as a no-op when the result isn't required, evaluating
fp for side-effects. Handle embedded NULs in format string.
(expand_builtin_sprintf): Fix typo.
(expand_builtin): Don't expand BUILT_IN_FPRINT{,_UNLOCKED} when not
optimizing. Adjust calls of expand_builtin_fputs to match the API
change. Expand BUILT_IN_PRINTF and BUILT_IN_PRINTF_UNLOCKED using
expand_builtin_printf. Likewise, expand BUILT_IN_FPRINTF_UNLOCKED
and BUILT_IN_FPRINTF using expand_builtin_fprintf.
* c-common.c (is_valid_printf_arglist): Delete.
(c_expand_builtin): Delete.
(c_expand_builtin_printf): Moved to builtins.c. Delete.
(c_expand_builtin_fprintf): Moved to builtins.c. Delete.
(c_expand_expr): No longer treat CALL_EXPRs specially.
(CALLED_AS_BUILT_IN): Delete.
From-SVN: r69760
* real.c (real_trunc, real_floor, real_ceil): New functions
to implement trunc, floor and ceil respectively.
* real.h (real_trunc, real_floor, real_ceil): Prototype here.
* builtins.c (integer_valued_real_p): New function to test if
a floating point expression has an integer valued result.
(fold_trunc_transparent_mathfn): Optimize foo(foo(x)) as
foo(x) where foo is an integer rounding function. Similarly,
optimize foo(bar(x)) as bar(x), and foo((double)(int)x) as
(double)(int)x when both foo and bar are integer rounding
functions and we don't need to honor errno.
(fold_builtin_trunc, fold_builtin_floor, fold_builtin_ceil):
New functions to fold trunc, floor and ceil.
(fold_builtin): Use fold_builtin_trunc to fold BUILT_IN_TRUNC*,
fold_builtin_floor to fold BUILT_IN_FLOOR* and fold_builtin_ceil
to fold BUILT_IN_CEIL*.
* fold-const.c (tree_expr_nonnegative_p): Handle FLOAT_EXPR and
the remaining integer rounding functions.
* gcc.dg/builtins-25.c: New testcase.
* gcc.dg/builtins-26.c: New testcase.
From-SVN: r68903
* builtins.c (expand_builtin_sprintf): Use c_getstr and strlen to
obtain the format string instead of using TREE_STRING_POINTER and
TREE_STRING_LENGTH. Only optimize sprintf(dst,"%s",src) when the
return value is unused or the length of src is a known constant.
* gcc.c-torture/execute/string-opt-16.c: Remove test for disabled
sprintf(dst,"%s",src) optimization.
* gcc.c-torture/execute/20030626-1.c: New test case.
* gcc.c-torture/execute/20030626-2.c: New test case.
Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r68555
* builtins.c (expand_builtin_mathfn): Always stabilize the argument
list against re-evaluation. If expand_unop fails, call expand_call
with the stabilized argument list rather than return NULL_RTX.
(expand_builtin_mathfn2): Likewise, always stabilize the argument
list, and call expand_call ourselves if expand_binop fails.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r68526
PR optimization/11311
* builtins.c (powi_cost): Fix typo. The number of multiplications
required is the number to reduce the argument, result, plus the
cost of calculating the residual, val [not n, the original value].
* gcc.c-torture/compile/20030624-1.c: New test case.
From-SVN: r68452
* builtins.c (expand_builtin): Use expand_builtin_pow to expand
calls for pow, powf, powl and their __builtin_ variants.
(expand_builtin_pow): If the second argument is a constant
integer and compiling with -ffast-math, use expand_powi to
generate RTL if powi_cost is less than POWI_MAX_MULTS.
(powi_cost): New function to return the number of multiplications
necessary to evaluate an Nth power, for integer constant N.
(expand_powi): New function to expand the RTL for evaluating
the Nth power of a floating point value, for integer constant N.
* doc/tm.texi (POWI_MAX_MULTS): Document new target macro.
* gcc.dg/builtins-24.c: New test case.
From-SVN: r68401
* builtins.c (expand_builtin_mathfn_2): Use tree_cons to build
up the stabilized argument list, not build_tree_list.
(expand_builtin_strcpy): Construct new argument list manually
instead of using chainon to modify the original argument list.
(expand_builtin_stpcpy): Construct new argument list manually
instead of using copy_list and chainon.
(expand_builtin_sprintf): New function. Optimize calls to
sprintf when the format is "%s" or doesn't contain a '%'.
(expand_builtin): Expand BUILT_IN_SPRINTF using the new function
expand_builtin_sprintf.
* gcc.c-torture/execute/string-opt-16.c: New test case.
From-SVN: r68355
* builtins.c (expand_errno_check): Assume that flag_errno_math
and HONOR_NANS have been tested before calling here. Only try
to set errno ourselves if the decl can't throw an exception.
(expand_builtin_mathfn): Move the code to stabilize the arg
after the main switch, so that that its only done when needed.
BUILT_IN_SQRT{,F,L} doesn't set errno if its arg is nonnegative.
Don't modify the original expr when stabilizing the argument.
(expand_builtin_mathfn_2): Likewise, move the code to stabilize
the args after the main switch, and don't modify the orginal exp.
From-SVN: r68217
* optabs.h (enum optab_index): Add new OTI_tan and OTI_atan.
(tan_optab, atan_optab): Define corresponding macros.
* optabs.c (init_optabs): Initialize tan_optab and atan_optab.
* genopinit.c (optabs): Implement tan_optab and atan_optab
using tan?f2 and atan?f2 patterns.
* builtins.c (expand_builtin_mathfn): Handle BUILT_IN_TAN{,F,L}
using tan_optab, and BUILT_IN_ATAN{,F,L} using atan_optab.
Change the default value of errno_set to false.
(expand_builtin): Expand BUILT_IN_TAN{,F,L} and BUILT_IN_ATAN{,F,L}
using expand_builtin_mathfn.
* config/i386/i386.md (atansf2, atandf2, atanxf2, atantf2): New
expander patterns implemented using existing atan2?f3 patterns.
* gcc.dg/i386-387-5.c: New test case.
* gcc.dg/i386-387-6.c: New test case.
* gcc.dg/builtins-23.c: New test case.
From-SVN: r68013
* alloc-pool.c: Convert to ISO C90 prototypes.
* alloc-pool.h: Likewise.
* alias.c: Likewise.
* attribs.c: Likewise.
* bb-reorder.c: Likewise.
* bitmap.h: Likewise.
* bitmap.c: Likewise.
* builtins.c: Likewise.
* tree.h: Convert prototypes of attribs.c to ISO C90.
* basic-block.h: Convert prototypes of bb-reorder.c to ISO C90.
* rtl.h: Convert prototypes of alias.c and builtins.c to ISO C90.
* expr.h: Convert prototypes of builtins.c to ISO C90.
From-SVN: r67975
* builtins.c (fold_builtin): Optimize cos(-x) as cos(x).
* fold-const.c (fold <NEGATE_EXPR>): Convert -f(x) into f(-x)
when x is easily negated and f is sin, tan or atan.
(fold <MULT_EXPR>): Optimize tan(x)*cos(x) and cos(x)*tan(x) as
sin(x) with flag_unsafe_math_optimizations.
(fold <RDIV_EXPR>): With flag_unsafe_math_optimizations fold
sin(x)/cos(x) as tan(x) and cos(x)/sin(x) as 1.0/tan(x).
* gcc.dg/builtins-20.c: New test case.
From-SVN: r67701
* fold-const.c (fold <ABS_EXPR>): Re-fold the result of folding
fabs(-x) into fabs(x). Use tree_expr_nonnegative_p to determine
when the ABS_EXPR (fabs or abs) is not required.
(tree_expr_nonnegative_p): Move the logic that sqrt and exp are
always nonnegative from fold to here. Additionally, cabs and fabs
are always non-negative, and pow and atan are non-negative if
their first argument is non-negative.
* builtins.c (fold_builtin_cabs): New function to fold cabs{,f,l}.
Evaluate cabs of a constant at compile-time. Convert cabs of a
non-complex argument into fabs. Convert cabs(z) into
sqrt(z.r*z.r + z.i*z.i) at the tree-level with -ffast-math or
-funsafe-math-optimizations or -ffast-math.
(fold_builtin): Convert BUILT_IN_FABS{,F,L} into an ABS_EXPR.
Fold BUILT_IN_CABS{,F,L} using fold_builtin_cabs.
* gcc.dg/builtins-2.c: Add some more tests.
* gcc.dg/builtins-18.c: New test case.
* gcc.dg/builtins-19.c: New test case.
From-SVN: r67541
* builtins.c (dconstpi, dconste): New mathematical constants.
(init_builtin_dconsts): New function to initialize dconstpi
and dconste.
(fold_builtin): Optimize exp(1.0) = e. Evaluate exp(x) at
compile time with -ffast-math when x is an integer constant.
Optimize tan(0.0) = 0.0. Optimize atan(0.0) = 0.0,
atan(1.0) = pi/4 and tan(atan(x)) = x with -ffast-math.
* gcc.dg/builtins-2.c: Add tests for tan(atan(x)).
* gcc.dg/builtins-3.c: Add tests for tan(0.0) and atan(0.0).
* gcc.dg/builtins-7.c: Add tests for tan(atan(x)) == x.
* gcc.dg/builtins-17.c: New test case.
* gcc.dg/i386-387-4.c: New test case.
* gcc.c-torture/execute/ieee/mzero4.c: New test case.
From-SVN: r67438
* builtins.def (BUILT_IN_CABS, BUILT_IN_CABSF, BUILT_IN_CABSL):
New builtins representing ISO C99's cabs, cabsf and cabsl.
* builtins.c (expand_builtin_fabs): New function.
(expand_builtin_cabs): New function.
(expand_builtin): Expand BUILT_IN_FABS{,F,L} and BUILT_IN_CABS{,F,L}
using expand_builtin_fabs and expand_builtin_cabs respectively.
* doc/extend.texi: Document new cabs, cabsf and cabsl builtins.
* gcc.dg/builtins-16.c: New test case.
From-SVN: r67368
* builtins.def: Defome atan, atanf, atanl, tan, tanf and tanl
builtin functions (and their __builtin_* variants).
* builtins.c (mathfn_built_in): Handle tan{,f,l} and atan{,f,l}.
(expand_builtin): Don't expand tan{,f,l} or atan{,f,l} when not
optimizing.
* doc/extend.texi: Document new tan and atan builtins, and
their float and long double variants.
* gcc.dg/builtins-1.c: Add tests for tan and atan.
* gcc.dg/builtins-4.c: Add test for fmod.
From-SVN: r67137
