2015-05-22 Jeff Law <law@redhat.com>
+ * config/pa/pa.md (integer_indexed_store splitters): Use
+ mem_shadd_operand. Use ASHIFT rather than MULT in the resulting
+ insns -- adjusting the constant 2nd operand accordingly.
+
* combine.c (try_combine): Canonicalize (plus (mult X pow2) Y) into
(plus (ashift X log2) Y) if it is a split point.
;; a 2 insn store with some creative RTL rewriting.
(define_split
[(set (mem:SI (plus:SI (mult:SI (match_operand:SI 0 "register_operand" "")
- (match_operand:SI 1 "shadd_operand" ""))
+ (match_operand:SI 1 "mem_shadd_operand" ""))
(plus:SI (match_operand:SI 2 "register_operand" "")
(match_operand:SI 3 "const_int_operand" ""))))
(match_operand:SI 4 "register_operand" ""))
(clobber (match_operand:SI 5 "register_operand" ""))]
""
- [(set (match_dup 5) (plus:SI (mult:SI (match_dup 0) (match_dup 1))
+ [(set (match_dup 5) (plus:SI (ashift:SI (match_dup 0) (match_dup 1))
(match_dup 2)))
(set (mem:SI (plus:SI (match_dup 5) (match_dup 3))) (match_dup 4))]
- "")
+ "
+{
+ operands[1] = GEN_INT (exact_log2 (INTVAL (operands[1])));
+
+}")
(define_split
[(set (mem:HI (plus:SI (mult:SI (match_operand:SI 0 "register_operand" "")
- (match_operand:SI 1 "shadd_operand" ""))
+ (match_operand:SI 1 "mem_shadd_operand" ""))
(plus:SI (match_operand:SI 2 "register_operand" "")
(match_operand:SI 3 "const_int_operand" ""))))
(match_operand:HI 4 "register_operand" ""))
(clobber (match_operand:SI 5 "register_operand" ""))]
""
- [(set (match_dup 5) (plus:SI (mult:SI (match_dup 0) (match_dup 1))
+ [(set (match_dup 5) (plus:SI (ashift:SI (match_dup 0) (match_dup 1))
(match_dup 2)))
(set (mem:HI (plus:SI (match_dup 5) (match_dup 3))) (match_dup 4))]
- "")
+ "
+{
+ operands[1] = GEN_INT (exact_log2 (INTVAL (operands[1])));
+
+}")
(define_split
[(set (mem:QI (plus:SI (mult:SI (match_operand:SI 0 "register_operand" "")
- (match_operand:SI 1 "shadd_operand" ""))
+ (match_operand:SI 1 "mem_shadd_operand" ""))
(plus:SI (match_operand:SI 2 "register_operand" "")
(match_operand:SI 3 "const_int_operand" ""))))
(match_operand:QI 4 "register_operand" ""))
(clobber (match_operand:SI 5 "register_operand" ""))]
""
- [(set (match_dup 5) (plus:SI (mult:SI (match_dup 0) (match_dup 1))
+ [(set (match_dup 5) (plus:SI (ashift:SI (match_dup 0) (match_dup 1))
(match_dup 2)))
(set (mem:QI (plus:SI (match_dup 5) (match_dup 3))) (match_dup 4))]
- "")
+ "
+{
+ operands[1] = GEN_INT (exact_log2 (INTVAL (operands[1])));
+
+}")
(define_expand "movhi"
[(set (match_operand:HI 0 "general_operand" "")