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| author | Richard Kenner <kenner@gcc.gnu.org> | 1995-05-31 20:44:10 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1995-05-31 20:44:10 -0400 |
| commit | 35f456e3977f35b0de8a39d5da5bfae59e0de63c (patch) | |
| tree | b4f654b5fc9a8540f3443e3e5040dcdbe7010639 | |
| parent | e65886db7dfb5cd98b806945386a2e294074e234 (diff) | |
| download | gcc-35f456e3977f35b0de8a39d5da5bfae59e0de63c.zip gcc-35f456e3977f35b0de8a39d5da5bfae59e0de63c.tar.gz gcc-35f456e3977f35b0de8a39d5da5bfae59e0de63c.tar.bz2 | |
(one_cmpldi2): New pattern.
({a,l}shrdi{3,_const}): Allow 63 as shift count.
From-SVN: r9854
| -rw-r--r-- | gcc/config/m68k/m68k.md | 50 |
1 files changed, 37 insertions, 13 deletions
diff --git a/gcc/config/m68k/m68k.md b/gcc/config/m68k/m68k.md index d2667ea..fab1159 100644 --- a/gcc/config/m68k/m68k.md +++ b/gcc/config/m68k/m68k.md @@ -4009,6 +4009,24 @@ ;; one complement instructions +;; "one_cmpldi2" is only here to help combine(). +(define_insn "one_cmpldi2" + [(set (match_operand:DI 0 "general_operand" "=dm") + (not:DI (match_operand:DI 1 "general_operand" "0")))] + "" + "* +{ + CC_STATUS_INIT; + if (GET_CODE (operands[0]) == REG) + operands[2] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1); + else if (GET_CODE (XEXP (operands[0], 0)) == POST_INC + || GET_CODE (XEXP (operands[0], 0)) == PRE_DEC) + operands[1] = operands[0]; + else + operands[1] = adj_offsettable_operand (operands[0], 4); + return \"not%.l %1\;not%.l %0\"; +}") + (define_insn "one_cmplsi2" [(set (match_operand:SI 0 "general_operand" "=dm") (not:SI (match_operand:SI 1 "general_operand" "0")))] @@ -4293,12 +4311,14 @@ [(set (match_operand:DI 0 "general_operand" "=d") (ashiftrt:DI (match_operand:DI 1 "general_operand" "0") (match_operand 2 "const_int_operand" "n")))] - "(INTVAL (operands[2]) == 1 - || INTVAL (operands[2]) == 8 || INTVAL (operands[2]) == 16 - || INTVAL (operands[2]) == 2 || INTVAL (operands[2]) == 3)" + "(INTVAL (operands[2]) == 1 || INTVAL (operands[2]) == 2 + || INTVAL (operands[2]) == 3 || INTVAL (operands[2]) == 8 + || INTVAL (operands[2]) == 16 || INTVAL (operands[2]) == 63)" "* { operands[1] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1); + if (INTVAL (operands[2]) == 63) + return \"add%.l %0,%0\;subx%.l %0,%0\;move%.l %0,%1\"; CC_STATUS_INIT; if (INTVAL (operands[2]) == 1) return \"asr%.l %#1,%0\;roxr%.l %#1,%1\"; @@ -4320,9 +4340,10 @@ " { if (GET_CODE (operands[2]) != CONST_INT - || (INTVAL (operands[2]) != 1 && INTVAL (operands[2]) != 32 - && INTVAL (operands[2]) != 8 && INTVAL (operands[2]) != 16 - && INTVAL (operands[2]) != 2 && INTVAL (operands[2]) != 3)) + || (INTVAL (operands[2]) != 1 && INTVAL (operands[2]) != 2 + && INTVAL (operands[2]) != 3 && INTVAL (operands[2]) != 8 + && INTVAL (operands[2]) != 16 && INTVAL (operands[2]) != 32 + && INTVAL (operands[2]) != 63)) FAIL; } ") @@ -4434,13 +4455,15 @@ [(set (match_operand:DI 0 "general_operand" "=d") (lshiftrt:DI (match_operand:DI 1 "general_operand" "0") (match_operand 2 "const_int_operand" "n")))] - "(INTVAL (operands[2]) == 1 - || INTVAL (operands[2]) == 8 || INTVAL (operands[2]) == 16 - || INTVAL (operands[2]) == 2 || INTVAL (operands[2]) == 3)" + "(INTVAL (operands[2]) == 1 || INTVAL (operands[2]) == 2 + || INTVAL (operands[2]) == 3 || INTVAL (operands[2]) == 8 + || INTVAL (operands[2]) == 16 || INTVAL (operands[2]) == 63)" "* { - CC_STATUS_INIT; operands[1] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1); + if (INTVAL (operands[2]) == 63) + return \"add%.l %0,%0\;clr%.l %0\;clr%.l %1\;addx%.l %1,%1\"; + CC_STATUS_INIT; if (INTVAL (operands[2]) == 1) return \"lsr%.l %#1,%0\;roxr%.l %#1,%1\"; else if (INTVAL (operands[2]) == 8) @@ -4461,9 +4484,10 @@ " { if (GET_CODE (operands[2]) != CONST_INT - || (INTVAL (operands[2]) != 1 && INTVAL (operands[2]) != 32 - && INTVAL (operands[2]) != 8 && INTVAL (operands[2]) != 16 - && INTVAL (operands[2]) != 2 && INTVAL (operands[2]) != 3)) + || (INTVAL (operands[2]) != 1 && INTVAL (operands[2]) != 2 + && INTVAL (operands[2]) != 3 && INTVAL (operands[2]) != 8 + && INTVAL (operands[2]) != 16 && INTVAL (operands[2]) != 32 + && INTVAL (operands[2]) != 63)) FAIL; } ") |