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pa.md (integer_indexed_store splitters): Use mem_shadd_operand. 

* 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.

From-SVN: r223586
This commit is contained in:
Jeff Law 2015-05-22 14:17:09 -06:00 committed by Jeff Law
parent cc55969de9
commit ddc75e8baf
2 changed files with 25 additions and 9 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
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.

30
gcc/config/pa/pa.md
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@ -2819,42 +2819,54 @@
;; 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" "")