diff options
| author | Kazu Hirata <kazu@cs.umass.edu> | 2003-03-25 01:17:01 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2003-03-25 01:17:01 +0000 |
| commit | beb14cfeb60559d0c87b64511048334aa4053354 (patch) | |
| tree | 2ae15a892c37f2683fc8985550ed51c6a8b724bc | |
| parent | 9469fe1512e7a4e7ef5f8ff07fb3e9829453e1b5 (diff) | |
| download | gcc-beb14cfeb60559d0c87b64511048334aa4053354.zip gcc-beb14cfeb60559d0c87b64511048334aa4053354.tar.gz gcc-beb14cfeb60559d0c87b64511048334aa4053354.tar.bz2 | |
h8300.md (a peephole2): Extend to support loads in QImode and HImode.
* config/h8300/h8300.md (a peephole2): Extend to support loads
in QImode and HImode.
From-SVN: r64836
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.md | 50 |
2 files changed, 39 insertions, 16 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2dca24b..7c6d4ee 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2003-03-24 Kazu Hirata <kazu@cs.umass.edu> + + * config/h8300/h8300.md (a peephole2): Extend to support loads + in QImode and HImode. + 2003-03-24 Stephane Carrez <stcarrez@nerim.fr> * config/m68hc11/t-m68hc11-gas (LIB1ASMFUNCS): Add _call_far and diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index 43bca10..b9a6094 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -3775,6 +3775,17 @@ ? gen_rtx_GE (VOIDmode, cc0_rtx, const0_rtx) : gen_rtx_LT (VOIDmode, cc0_rtx, const0_rtx));") +;; The next three peephole2's will try to transform +;; +;; mov.b A,r0l (or mov.l A,er0) +;; and.l #CST,er0 +;; +;; into +;; +;; sub.l er0 +;; mov.b A,r0l +;; and.b #CST,r0l (if CST is not 255) + (define_peephole2 [(set (match_operand:QI 0 "register_operand" "") (match_operand:QI 1 "general_operand" "")) @@ -3807,24 +3818,31 @@ operands[3] = gen_lowpart (QImode, operands[1]);") (define_peephole2 - [(set (match_operand:SI 0 "register_operand" "") - (match_operand:SI 1 "general_operand" "")) - (set (match_dup 0) - (and:SI (match_dup 0) - (match_operand:SI 2 "const_int_qi_operand" "")))] + [(set (match_operand 0 "register_operand" "") + (match_operand 1 "general_operand" "")) + (set (match_operand:SI 2 "register_operand" "") + (and:SI (match_dup 2) + (match_operand:SI 3 "const_int_qi_operand" "")))] "(TARGET_H8300H || TARGET_H8300S) - && !reg_overlap_mentioned_p (operands[0], operands[1]) - && !(GET_CODE (operands[1]) == MEM && MEM_VOLATILE_P (operands[1]))" - [(set (match_dup 0) + && (GET_MODE (operands[0]) == QImode + || GET_MODE (operands[0]) == HImode + || GET_MODE (operands[0]) == SImode) + && GET_MODE (operands[0]) == GET_MODE (operands[1]) + && REGNO (operands[0]) == REGNO (operands[2]) + && !reg_overlap_mentioned_p (operands[2], operands[1]) + && !(GET_MODE (operands[1]) != QImode + && GET_CODE (operands[1]) == MEM + && MEM_VOLATILE_P (operands[1]))" + [(set (match_dup 2) (const_int 0)) - (set (strict_low_part (match_dup 3)) - (match_dup 4)) - (set (match_dup 0) - (and:SI (match_dup 0) - (match_dup 5)))] - "operands[3] = gen_lowpart (QImode, operands[0]); - operands[4] = gen_lowpart (QImode, operands[1]); - operands[5] = GEN_INT (~0xff | INTVAL (operands[2]));") + (set (strict_low_part (match_dup 4)) + (match_dup 5)) + (set (match_dup 2) + (and:SI (match_dup 2) + (match_dup 6)))] + "operands[4] = gen_lowpart (QImode, operands[0]); + operands[5] = gen_lowpart (QImode, operands[1]); + operands[6] = GEN_INT (~0xff | INTVAL (operands[3]));") (define_peephole2 [(set (match_operand:SI 0 "register_operand" "") |