diff options
Diffstat (limited to 'devel/avr-gcc/files/patch-avr.md')
| -rw-r--r-- | devel/avr-gcc/files/patch-avr.md | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/devel/avr-gcc/files/patch-avr.md b/devel/avr-gcc/files/patch-avr.md new file mode 100644 index 000000000000..476bad2733cf --- /dev/null +++ b/devel/avr-gcc/files/patch-avr.md @@ -0,0 +1,131 @@ +--- gcc/config/avr/avr.md.orig Sat Mar 19 16:45:41 2005 ++++ gcc/config/avr/avr.md Thu Mar 2 09:45:36 2006 +@@ -346,69 +346,75 @@ + + ;;========================================================================= + ;; move string (like memcpy) +-;; implement as RTL loop + + (define_expand "movstrhi" + [(parallel [(set (match_operand:BLK 0 "memory_operand" "") +- (match_operand:BLK 1 "memory_operand" "")) +- (use (match_operand:HI 2 "const_int_operand" "")) +- (use (match_operand:HI 3 "const_int_operand" ""))])] ++ (match_operand:BLK 1 "memory_operand" "")) ++ (use (match_operand:HI 2 "const_int_operand" "")) ++ (use (match_operand:HI 3 "const_int_operand" "")) ++ (clobber (match_scratch:HI 4 "")) ++ (clobber (match_scratch:HI 5 "")) ++ (clobber (match_dup 6))])] + "" + "{ +- int prob; +- HOST_WIDE_INT count; ++ rtx addr0, addr1; ++ int cnt8; + enum machine_mode mode; +- rtx label = gen_label_rtx (); +- rtx loop_reg; +- rtx jump; +- +- /* Copy pointers into new psuedos - they will be changed. */ +- rtx addr0 = copy_to_mode_reg (Pmode, XEXP (operands[0], 0)); +- rtx addr1 = copy_to_mode_reg (Pmode, XEXP (operands[1], 0)); +- +- /* Create rtx for tmp register - we use this as scratch. */ +- rtx tmp_reg_rtx = gen_rtx_REG (QImode, TMP_REGNO); + + if (GET_CODE (operands[2]) != CONST_INT) + FAIL; +- +- count = INTVAL (operands[2]); +- if (count <= 0) +- FAIL; +- +- /* Work out branch probability for latter use. */ +- prob = REG_BR_PROB_BASE - REG_BR_PROB_BASE / count; +- +- /* See if constant fit 8 bits. */ +- mode = (count < 0x100) ? QImode : HImode; +- /* Create loop counter register. */ +- loop_reg = copy_to_mode_reg (mode, gen_int_mode (count, mode)); +- +- /* Now create RTL code for move loop. */ +- /* Label at top of loop. */ +- emit_label (label); +- +- /* Move one byte into scratch and inc pointer. */ +- emit_move_insn (tmp_reg_rtx, gen_rtx_MEM (QImode, addr1)); +- emit_move_insn (addr1, gen_rtx_PLUS (Pmode, addr1, const1_rtx)); +- +- /* Move to mem and inc pointer. */ +- emit_move_insn (gen_rtx_MEM (QImode, addr0), tmp_reg_rtx); +- emit_move_insn (addr0, gen_rtx_PLUS (Pmode, addr0, const1_rtx)); +- +- /* Decrement count. */ +- emit_move_insn (loop_reg, gen_rtx_PLUS (mode, loop_reg, constm1_rtx)); +- +- /* Compare with zero and jump if not equal. */ +- emit_cmp_and_jump_insns (loop_reg, const0_rtx, NE, NULL_RTX, mode, 1, +- label); +- /* Set jump probability based on loop count. */ +- jump = get_last_insn (); +- REG_NOTES (jump) = gen_rtx_EXPR_LIST (REG_BR_PROB, +- GEN_INT (prob), +- REG_NOTES (jump)); +- DONE; ++ cnt8 = byte_immediate_operand (operands[2], GET_MODE (operands[2])); ++ mode = cnt8 ? QImode : HImode; ++ operands[2] = copy_to_mode_reg (mode, ++ gen_int_mode (INTVAL (operands[2]), mode)); ++ addr0 = copy_to_mode_reg (Pmode, XEXP (operands[0], 0)); ++ addr1 = copy_to_mode_reg (Pmode, XEXP (operands[1], 0)); ++ ++ operands[6] = gen_rtx_SCRATCH (mode); ++ operands[0] = gen_rtx (MEM, BLKmode, addr0); ++ operands[1] = gen_rtx (MEM, BLKmode, addr1); + }") ++ ++(define_insn "*movstrqi_insn" ++ [(set (mem:BLK (match_operand:HI 0 "register_operand" "e")) ++ (mem:BLK (match_operand:HI 1 "register_operand" "e"))) ++ (use (match_operand:QI 2 "register_operand" "r")) ++ (use (match_operand:QI 3 "const_int_operand" "i")) ++ (clobber (match_scratch:HI 4 "=0")) ++ (clobber (match_scratch:HI 5 "=1")) ++ (clobber (match_scratch:QI 6 "=2"))] ++ "" ++ "ld __tmp_reg__,%a1+ ++ st %a0+,__tmp_reg__ ++ dec %2 ++ brne .-8" ++ [(set_attr "length" "4") ++ (set_attr "cc" "clobber")]) ++ ++(define_insn "*movstrhi" ++ [(set (mem:BLK (match_operand:HI 0 "register_operand" "e,e")) ++ (mem:BLK (match_operand:HI 1 "register_operand" "e,e"))) ++ (use (match_operand:HI 2 "register_operand" "!w,d")) ++ (use (match_operand:HI 3 "const_int_operand" "")) ++ (clobber (match_scratch:HI 4 "=0,0")) ++ (clobber (match_scratch:HI 5 "=1,1")) ++ (clobber (match_scratch:HI 6 "=2,2"))] ++ "" ++ "*{ ++ if (which_alternative==0) ++ return (AS2 (ld,__tmp_reg__,%a1+) CR_TAB ++ AS2 (st,%a0+,__tmp_reg__) CR_TAB ++ AS2 (sbiw,%A2,1) CR_TAB ++ AS1 (brne,.-8)); ++ else ++ return (AS2 (ld,__tmp_reg__,%a1+) CR_TAB ++ AS2 (st,%a0+,__tmp_reg__) CR_TAB ++ AS2 (subi,%A2,1) CR_TAB ++ AS2 (sbci,%B2,0) CR_TAB ++ AS1 (brne,.-10)); ++}" ++ [(set_attr "length" "4,5") ++ (set_attr "cc" "clobber,clobber")]) + + ;; =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 =0 + ;; memset (%0, 0, %1) |