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| author | Paul Koning <ni1d@arrl.net> | 2018-06-27 17:58:24 -0400 |
|---|---|---|
| committer | Paul Koning <pkoning@gcc.gnu.org> | 2018-06-27 17:58:24 -0400 |
| commit | b4324a144b4499725143baf1f69722f92814572e (patch) | |
| tree | ed5e61eed2d97171a207721de22310cec011d782 /gcc/common | |
| parent | 356d53635faecee4b8abfc6b21208432c72eebff (diff) | |
| download | gcc-b4324a144b4499725143baf1f69722f92814572e.tar.gz | |
Convert pdp11 back end to CCmode.
* common/config/pdp11/pdp11-common.c (pdp11_handle_option): Handle
mutually exclusive options.
* config/pdp11/constraints.md (h): New constraint.
(O): Update definition to match shift code generation.
(D): New constraint.
* config/pdp11/pdp11-modes.def (CCNZ): Define mode.
(CCFP): Remove.
* config/pdp11/pdp11-protos.h (int_no_side_effect_operand): New
function.
(output_jump): Change arguments.
(pdp11_fixed_cc_regs): New function.
(pdp11_cc_mode): Ditto.
(pdp11_expand_shift): Ditto.
(pdp11_assemble_shift): Ditto.
(pdp11_small_shift): Ditto.
(pdp11_branch_cost): Remove.
* config/pdp11/pdp11.c (pdp11_assemble_integer): Remove comments
from output.
(pdp11_register_move_cost): Update for CC registers.
(pdp11_rtx_costs): Add case for LSHIFTRT.
(pdp11_output_jump): Add CCNZ mode conditional branches.
(notice_update_cc_on_set): Remove.
(pdp11_cc_mode): New function.
(simple_memory_operand): Correct pre/post decrement case.
(no_side_effect_operand): New function.
(pdp11_regno_reg_class): Add CC_REGS class.
(pdp11_fixed_cc_regs): New function.
(pdp11_small_shift): New function.
(pdp11_expand_shift): New function to expand shift insns.
(pdp11_assemble_shift): New function to output shifts.
(pdp11_branch_cost): Remove.
(pdp11_modes_tieable_p): Make QI/HI modes tieable.
* config/pdp11/pdp11.h (SIZE_TYPE): Ensure 16-bit type.
(WCHAR_TYPE): Ditto.
(PTRDIFF_TYPE): Ditto.
(ADJUST_INSN_LENGTH): New macro.
(FIXED_REGISTERS): Add CC registers.
(CALL_USED_REGISTERS): Ditto.
(reg_class): Ditto.
(REG_CLASS_NAMES): Ditto.
(REG_CLASS_CONTENTS): Ditto.
(SELECT_CC_MODE): Use new function.
(TARGET_FLAGS_REGNUM): New macro.
(TARGET_FIXED_CONDITION_CODE_REGS): Ditto.
(cc0_reg_rtx): Remove.
(CC_STATUS_MDEP): Remove.
(CC_STATUS_MDEFP_INIT): Remove.
(CC_IN_FPU): Remove.
(NOTICE_UPDATE_CC): Remove.
(REGISTER_NAMES): Add CC registers.
(BRANCH_COST): Change to constant 1.
* config/pdp11/pdp11.md: Rewrite for CCmode condition code
handling.
* config/pdp11/pdp11.opt (mbcopy): Remove.
(mbcopy-builtin): Remove.
(mbranch-cheap): Remove.
(mbranch-expensive): Remove.
* config/pdp11/predicates.md (expand_shift_operand): Update to
match shift code generation.
(ccnz_operator): New predicate.
* doc/invoke.texi (PDP-11 Options): Remove deleted options
-mbcopy, -mbcopy-builtin, -mbranch-cheap, -mbranch-expensive.
Remove non-existent option -mabshi, -mno-abshi. Document mutually
exclusive options.
* doc/md.texi (PDP-11): Document new D and h constraints. Update
description of O constraint.
From-SVN: r262198
Diffstat (limited to 'gcc/common')
| -rw-r--r-- | gcc/common/config/pdp11/pdp11-common.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/gcc/common/config/pdp11/pdp11-common.c b/gcc/common/config/pdp11/pdp11-common.c index aa809a9d457..9feb4fd4ea1 100644 --- a/gcc/common/config/pdp11/pdp11-common.c +++ b/gcc/common/config/pdp11/pdp11-common.c @@ -39,9 +39,27 @@ pdp11_handle_option (struct gcc_options *opts, switch (code) { case OPT_m10: - opts->x_target_flags &= ~(MASK_40 | MASK_45); + opts->x_target_flags &= ~(MASK_40 | MASK_45 | MASK_FPU | MASK_AC0 | MASK_SPLIT); return true; + case OPT_m40: + opts->x_target_flags &= ~(MASK_45 | MASK_FPU | MASK_AC0 | MASK_SPLIT); + return true; + + case OPT_mfpu: + opts->x_target_flags &= ~MASK_40; + opts->x_target_flags |= MASK_45; + return true; + + case OPT_msoft_float: + opts->x_target_flags &= ~MASK_AC0; + return true; + + case OPT_msplit: + opts->x_target_flags &= ~MASK_40; + opts->x_target_flags |= MASK_45; + return true; + default: return true; } |