diff options
| author | ciceron <ciceron@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-06-28 21:16:58 +0000 |
|---|---|---|
| committer | ciceron <ciceron@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-06-28 21:16:58 +0000 |
| commit | faf8dab54b28ab718ed5b14a711b8889a83ac381 (patch) | |
| tree | 0e12e414ea04f37ee073eb449142ab8e89e77c4b /gcc/config/m68hc11/m68hc11.md | |
| parent | 5e606a0f268f5abdb9f86e8c33001db8d2a125ac (diff) | |
| download | gcc-faf8dab54b28ab718ed5b14a711b8889a83ac381.tar.gz | |
* config/m68hc11/m68hc11.md ("*addsi3"): Use 'o' constraint to
avoid the auto increment addressing modes.
("*subsi3"): Likewise.
(split for add/sub on address): For 68HC12 push the value on
the stack and do the operation with a pop.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@55083 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/m68hc11/m68hc11.md')
| -rw-r--r-- | gcc/config/m68hc11/m68hc11.md | 55 |
1 files changed, 46 insertions, 9 deletions
diff --git a/gcc/config/m68hc11/m68hc11.md b/gcc/config/m68hc11/m68hc11.md index 6cad95162a9..ce32b53a50a 100644 --- a/gcc/config/m68hc11/m68hc11.md +++ b/gcc/config/m68hc11/m68hc11.md @@ -1,6 +1,6 @@ ;;- Machine description file for Motorola 68HC11 and 68HC12. ;;- Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc. -;;- Contributed by Stephane Carrez (stcarrez@worldnet.fr) +;;- Contributed by Stephane Carrez (stcarrez@nerim.fr) ;; This file is part of GNU CC. @@ -1900,9 +1900,9 @@ }") (define_insn "*addsi3" - [(set (match_operand:SI 0 "non_push_operand" "=m,D,!u,?D,D") + [(set (match_operand:SI 0 "non_push_operand" "=o,D,!u,?D,D") (plus:SI (match_operand:SI 1 "non_push_operand" "%0,0,0,0,0") - (match_operand:SI 2 "general_operand" "ML,i,ML,?D,?miu"))) + (match_operand:SI 2 "general_operand" "ML,i,ML,?D,?oiu"))) (clobber (match_scratch:HI 3 "=d,X,d,X,X"))] "" "* @@ -2500,8 +2500,8 @@ (define_insn "*subsi3" [(set (match_operand:SI 0 "register_operand" "=D,D,D,D,!u") - (minus:SI (match_operand:SI 1 "general_operand" "0,mi,0,!u,0") - (match_operand:SI 2 "general_operand" "mi,D,!u,D,!mui"))) + (minus:SI (match_operand:SI 1 "general_operand" "0,oi,0,!u,0") + (match_operand:SI 2 "general_operand" "oi,D,!u,D,!oui"))) (clobber (match_scratch:HI 3 "=X,X,X,X,d"))] "" "#") @@ -3932,19 +3932,55 @@ || (GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) >= -4 && INTVAL (operands[2]) <= 4)))" - [(set (match_dup 4) (match_dup 5)) + [(set (match_dup 9) (match_dup 0)) + (set (match_dup 4) (match_dup 5)) (set (match_dup 8) (match_dup 7)) + (set (match_dup 0) (match_dup 1)) (parallel [(set (reg:HI D_REGNUM) (match_dup 0)) (set (match_dup 0) (reg:HI D_REGNUM))]) (set (reg:HI D_REGNUM) (match_op_dup 3 [(reg:HI D_REGNUM) (match_dup 6)])) (parallel [(set (reg:HI D_REGNUM) (match_dup 0)) (set (match_dup 0) (reg:HI D_REGNUM))])] " + operands[9] = operands[0]; + /* For 68HC12, push the value on the stack and do the operation + with a pop. */ + if (TARGET_M6812 + && m68hc11_non_shift_operator (operands[3], HImode) + && (H_REG_P (operands[2]) + || (m68hc11_small_indexed_indirect_p (operands[2], HImode) + && reg_mentioned_p (operands[0], operands[2])))) + { + operands[4] = gen_rtx (MEM, HImode, + gen_rtx (PRE_DEC, HImode, + gen_rtx (REG, HImode, HARD_SP_REGNUM))); + operands[6] = gen_rtx (MEM, HImode, + gen_rtx (POST_INC, HImode, + gen_rtx (REG, HImode, HARD_SP_REGNUM))); + operands[5] = operands[2]; + operands[8] = operands[7] = operands[0]; + } /* Save the operand2 in a temporary location and use it. */ - if ((H_REG_P (operands[2]) - || reg_mentioned_p (operands[0], operands[2])) - && !(SP_REG_P (operands[2]) && GET_CODE (operands[3]) == PLUS)) + else if ((H_REG_P (operands[2]) + || reg_mentioned_p (operands[0], operands[2])) + && !(SP_REG_P (operands[2]) && GET_CODE (operands[3]) == PLUS)) { + if (GET_CODE (operands[3]) == MINUS + && reg_mentioned_p (operands[0], operands[2])) + { + operands[9] = gen_rtx (MEM, HImode, + gen_rtx (PRE_DEC, HImode, + gen_rtx (REG, HImode, HARD_SP_REGNUM))); + operands[1] = gen_rtx (MEM, HImode, + gen_rtx (POST_INC, HImode, + gen_rtx (REG, HImode, HARD_SP_REGNUM))); + operands[8] = gen_rtx (REG, HImode, SOFT_TMP_REGNUM); + operands[4] = operands[7] = operands[0]; + operands[6] = operands[8]; + operands[5] = operands[2]; + } + else + { operands[4] = gen_rtx (REG, HImode, SOFT_TMP_REGNUM); operands[6] = operands[4]; if (!H_REG_P (operands[2])) @@ -3958,6 +3994,7 @@ operands[5] = operands[2]; operands[8] = operands[7] = operands[0]; } + } } else { |