* config/h8300/h8300.md (*andsi3_lshift_n_sb): New.

	(*iorsi3_and_lshiftrt_n_sb): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@61251 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index efcc635..32e95b1 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-01-13  Kazu Hirata  <kazu@cs.umass.edu>
+
+       * config/h8300/h8300.md (*andsi3_lshift_n_sb): New.
+       (*iorsi3_and_lshiftrt_n_sb): Likewise.
+
 2003-01-12  Mark Mitchell  <mark@codesourcery.com>
 
        PR c++/9264

diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md
index 66c79e7..5b38e04 100644 (file)
--- a/gcc/config/h8300/h8300.md
+++ b/gcc/config/h8300/h8300.md
@@ -2598,6 +2598,24 @@
              (clobber (scratch:QI))])]
   "")
 
+;; Accept (A >> 30) & 2 and the like.
+
+(define_insn "*andsi3_lshiftrt_n_sb"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+       (and:SI (lshiftrt:SI (match_operand:SI 1 "register_operand" "0")
+                            (match_operand:SI 2 "const_int_operand" "n"))
+               (match_operand:SI 3 "single_one_operand" "n")))]
+  "(TARGET_H8300H || TARGET_H8300S)
+   && exact_log2 (INTVAL (operands[3])) < 16
+   && INTVAL (operands[2]) + exact_log2 (INTVAL (operands[3])) == 31"
+  "*
+{
+  operands[3] = GEN_INT (exact_log2 (INTVAL (operands[3])));
+  return \"shll.l\\t%S0\;xor.l\\t%S0,%S0\;bst\\t%Z3,%Y0\";
+}"
+  [(set_attr "length" "8")
+   (set_attr "cc" "clobber")])
+
 ;; plus:SI
 
 (define_insn "*addsi3_upper"
@@ -2711,6 +2729,17 @@
   [(set_attr "length" "6")
    (set_attr "cc" "set_znv")])
 
+(define_insn "*iorsi3_and_lshiftrt_n_sb"
+  [(set (match_operand:SI 0 "register_operand" "=r")
+       (ior:SI (and:SI (lshiftrt:SI (match_operand:SI 1 "register_operand" "r")
+                                    (const_int 30))
+                       (const_int 2))
+               (match_operand:SI 2 "register_operand" "0")))]
+  "(TARGET_H8300H || TARGET_H8300S)"
+  "rotl.l\\t%S1\;rotr.l\\t%S1\;bor\\t#1,%w0\;bst\\t#1,%w0"
+  [(set_attr "length" "8")
+   (set_attr "cc" "clobber")])
+
 ;; Used to OR the exponent of a float.
 
 (define_insn "*iorsi3_shift"