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| author | Kazu Hirata <kazu@cs.umass.edu> | 2002-12-11 13:27:29 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2002-12-11 13:27:29 +0000 |
| commit | 68d0a3d2797b1fef210c973c1dbf7db2a52ef83a (patch) | |
| tree | a7f7499227047b98fb9824227249a1bf3c72cc72 /gcc | |
| parent | 722d59a3375f50d6a56191ddf2dd6a822daae19f (diff) | |
| download | gcc-68d0a3d2797b1fef210c973c1dbf7db2a52ef83a.zip gcc-68d0a3d2797b1fef210c973c1dbf7db2a52ef83a.tar.gz gcc-68d0a3d2797b1fef210c973c1dbf7db2a52ef83a.tar.bz2 | |
* config/h8300/h8300.md (two define_peephole2): New.
From-SVN: r60036
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.md | 56 |
2 files changed, 60 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 364c1f5..caf1f4b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2002-12-11 Kazu Hirata <kazu@cs.umass.edu> + * config/h8300/h8300.md (two define_peephole2): New. + +2002-12-11 Kazu Hirata <kazu@cs.umass.edu> + * config/h8300/h8300.h (CONST_OK_FOR_J): Remove. (CONST_OK_FOR_K): Likewise. (CONST_OK_FOR_M): Likewise. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index b1d39d7..051b81f 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -2689,3 +2689,59 @@ (set (mem:SI (plus:SI (reg:SI SP_REG) (const_int -8))) (match_dup 1))])] "") + +;; Turn +;; +;; mov.w #2,r0 +;; add.w r7,r0 (6 bytes) +;; +;; into +;; +;; mov.w r7,r0 +;; adds #2,r0 (4 bytes) + +(define_peephole2 + [(set (match_operand:HI 0 "register_operand" "") + (match_operand:HI 1 "const_int_operand" "")) + (set (match_dup 0) + (plus:HI (match_dup 0) + (match_operand:HI 2 "register_operand" "")))] + "REG_P (operands[0]) && REG_P (operands[2]) + && REGNO (operands[0]) != REGNO (operands[2]) + && (CONST_OK_FOR_L (INTVAL (operands[1])) + || CONST_OK_FOR_N (INTVAL (operands[1])))" + [(set (match_dup 0) + (match_dup 2)) + (set (match_dup 0) + (plus:HI (match_dup 0) + (match_dup 1)))] + "") + +;; Turn +;; +;; sub.l er0,er0 +;; add.b #4,r0l +;; add.l er7,er0 (6 bytes) +;; +;; into +;; +;; mov.l er7,er0 +;; adds #4,er0 (4 bytes) + +(define_peephole2 + [(set (match_operand:SI 0 "register_operand" "") + (match_operand:SI 1 "const_int_operand" "")) + (set (match_dup 0) + (plus:SI (match_dup 0) + (match_operand:SI 2 "register_operand" "")))] + "(TARGET_H8300H || TARGET_H8300S) + && REG_P (operands[0]) && REG_P (operands[2]) + && REGNO (operands[0]) != REGNO (operands[2]) + && (CONST_OK_FOR_L (INTVAL (operands[1])) + || CONST_OK_FOR_N (INTVAL (operands[1])))" + [(set (match_dup 0) + (match_dup 2)) + (set (match_dup 0) + (plus:SI (match_dup 0) + (match_dup 1)))] + "") |