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  1. 14 Mar, 1997 1 commit
    • mn10300.c (const_costs): Remove unused function. · 38c37a0e 
              * mn10300/mn10300.c (const_costs): Remove unused function.
        * mn10300/mn10300.h (CONST_COSTS): Rework to generate better code.

        * mn10300/mn10300.c (print_operand): Handle 'H' and 'L' output
        modifers for high/low part of a 64bit value.
        * mn10300/mn10300.h (CONST_DOUBLE_OK_FOR_LETTER_P): Handle 'G'
        (LEGITIMATE_CONSTANT_P): Allow any constant.
        * mn10300/mn10300.md (movdi, movdf): Implement.
        (adddi3, subdi3): New expanders and patterns.

        * mn10300/mn10300.c (print_operand): Handle 'A' modifier for an
        address which can't be simple register indirect.
        * mn10300/mn10300.h (EXTRA_CONSTRAINT): Handle 'R' for bit ops.
        * mn10300/mn10300.md: Add several patterns to test, set and clear
        bitfields.

        * mn10300/mn10300.c (can_use_return_insn): New function.
        (expand_epilogue): Emit a RETURN insn if possible.
        * mn10300/mn10300.md (return): New pattern.

        * mn10300/mn10300.h (CONST_OK_FOR_LETTER_P): Handle 'N'.
        * mn10300/mn10300.md (andsi3): Catch "and 255,dn" and "and 65535,dn"
        which were not turned into zero_extend patterns.

        * mn10300/mn10300.h (GO_IF_LEGITIMATE_ADDRESS): Handle symbolic
        constant as an index/base too.

        * mn10300/mn10300.md (movsi): Allow SP to be loaded/saved with
        reg+d8 addresses.

        * mn10300/mn10300.md (cmpsi): Allow second operand to be a constant.
        (subsi3): Likewise.

        * mn10300/mn10300.md (sign extension patterns): Fix thinko when
        extending from memory.

        * mn10300/mn10300.md (tst peepholes): Add peepholes for test/branch
        based on N bit being set/clear and the data value being tested dies.

From-SVN: r13701
      Jeff Law committed
  3. 12 Mar, 1997 1 commit
    • mn10300.c (expand_prologue): Rework so that eliminating the frame pointer… · 777fbf09 
      mn10300.c (expand_prologue): Rework so that eliminating the frame pointer produces faster/smaller code.

        * mn10300/mn10300.c (expand_prologue): Rework so that eliminating
        the frame pointer produces faster/smaller code.
        (expand_epilogue): Likewise.
        (initial_offset): New function for argument pointer and frame pointer
        elimination.
        * mn10300/mn10300.h (FIRST_PSEUDO_REGISTER): Bump to 10.
        (FIXED_REGISTERS): Add argument pointer register, it's a fake fixed
        register.
        (CALL_USED_REGISTERS, REG_ALLOC_ORDER): Corresponding changes.
        (REGNO_REG_CLASS, REG_CLASS_CONTENTS): Likewise.
        (REG_OK_FOR_BASE_P, REGISTER_NAMES): Likewise.
        (reg_class, REG_CLASS_NAMES): Delete unwanted DATA_OR_SP_REGS class.
        (PREFERRED_OUTPUT_RELOAD_CLASS): Define.
        (FIRST_PARM_OFFSET): No longer include register save area in
        computation.
        (STACK_POINTER_REGNUM): Is now register 9.
        (ARG_POINTER_REGNUM): Is now register 8.
        (FRAME_POINTER_REQUIRED): Refine.
        (ELIMINABLE_REGS, INITIAL_ELIMINATION_OFFSET): Define.
        (CAN_DEUG_WITHOUT_FP): Define.
        * mn10300/mn10300.md (return_internal): Break into two patterns.

        * mn10300/mn10300.h (CONST_OK_FOR_LETTER_P): Handle 'M' too.
        (REGISTER_MOVE_COST): Fix errors and refine.

        * mn10300/mn10300.c (notice_update_cc): SET_ZN_C0 insns leave the
        overflow bit in an unuseable state.  Rename CC_SET to CC_TST.
        * mn10300/mn10300.md (cc attributes): "set" is gone, replaced by
        "tst".  Update attributes on various insns.

        * mn10300/mn10300.md: Improve sign and zero extension instructions.
        (ashlsi3): Improve.  Handle address registers too.
        (add peephole): Combine two consecutive adjustments of a register
        into a single adjustment.

From-SVN: r13700
      Jeff Law committed
  5. 11 Mar, 1997 1 commit
  7. 10 Mar, 1997 2 commits
  9. 07 Mar, 1997 1 commit
    • mn10300.c (expand_prologue): Rework to avoid unnecessary "add" operations. · 6e86170d 
              * mn10300/mn10300.c (expand_prologue): Rework to avoid unnecessary
        "add" operations.
        (expand_epilogue): Likewise.
        * mn10300/mn10300.h (STARTING_FRAME_OFFSET): Is zero after the last
        round of prologue/epilogue changes.
        (FIRST_PARM_OFFSET): Is now 16 (-4 for REG_PARM_STACK_SPACE + 20 for
        register save area).
        (REG_PARM_STACK_SPACE): Define as 4 bytes.
        (OUTGOING_REG_PARM_STACK_SPACE): Define so caller allocates it.
        * mn10300/mn10300.md (call expander): Don't emit insns to adjust the
        stack here anymore.
        (call_value expander): Likewise.

        * mn10300/mn10300.md (bCC patterns): Just use "bCC target" now that
        the assembler handles relaxing.

From-SVN: r13696
      Jeff Law committed
  11. 06 Mar, 1997 3 commits
  13. 05 Mar, 1997 3 commits
  15. 04 Mar, 1997 2 commits
  17. 03 Mar, 1997 2 commits
  19. 02 Mar, 1997 2 commits
  21. 28 Feb, 1997 2 commits
  23. 27 Feb, 1997 4 commits
  25. 26 Feb, 1997 1 commit
  27. 24 Feb, 1997 2 commits
  29. 23 Feb, 1997 1 commit
  31. 21 Feb, 1997 1 commit
  33. 20 Feb, 1997 6 commits
  35. 19 Feb, 1997 4 commits
  37. 17 Feb, 1997 1 commit