Convert all direct memory references to use LO_SUM and remove machdep
hack that used to do this.
Sun Jan 24 21:24:43 1999 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* config/c4x/c4x.c (c4x_emit_move_sequence, c4x_encode_section_info):
New functions.
(c4x_check_legit_addr): Remove USE and PLUS, allow
LO_SUM, and disable SYMBOL_REF, LABEL_REF, and CONST cases.
(c4x_legitimize_address): Penalise SYMBOL_REF, LABEL_REF, and
CONST cases. Add LO_SUM.
(c4x_print_operand): Modified 'C' and 'R' cases for calls.
Added 'U' case. Remove dependence on SYMBOL_REF_FLAG.
(c4x_print_operand_address): Handle LO_SUM.
(c4x_scan_for_ldp): Delete. Hooray!
(c4x_process_after_reload): Remove call to c4x_scan_for_ldp.
Split all insns.
(c4x_immed_int_constant): Renamed from c4x_int_constant. All callers
changed.
(c4x_immed_float_constant): Renamed from c4x_float_constant. All
callers changed.
(c4x_T_constraint): Allow LO_SUM, disable SYMBOL_REF, LABEL_REF,
and CONST.
(c4x_U_constraint, symbolic_operand): New functions.
(src_operand): Allow 'I' constants in HImode. Allow LO_SUM,
disable SYMBOL_REF, LABEL_REF, and CONST.
(lsrc_operand, tsrc_operand): Call src_operand instead of
general_operand.
(c4x_operand_subword): Update comments.
* config/c4x/c4x.c (TARGET_LOAD_ADDRESS): New macro.
(LEGITIMATE_CONSTANT_P): Allow SYMBOL_REF, LABEL_REF, CONST,
plus HIGH and LO_SUM for the C40.
(ENCODE_SECTION_INFO): Define macro.
(symbolic_operand, c4x_U_constraint, c4x_emit_move_sequence): New
prototypes.
(PREDICATE_CODES): Add symbolic_operand.
* config/c4x/c4x.md (movqi, movgqf, movhi, movhi): Call
c4x_emit_move_sequence.
(floatunsqiqf2, fixuns_truncqfqi2): Rework emitted RTL
to avoid symbol references.
(all patterns with g constraint): Replace 'g' constraint with 'rIm'.
(set_high): Renamed from set_high_use.
(set_lo_sum): Renamed from set_ior_lo_use.
(all call patterns): Make MEM explicit in call address operands.
Modified output templates to use 'U' modifier.
From-SVN: r24842
