From 26915fa9bcd03bec9a39835b075a605309e1e9d6 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Mon, 1 Mar 1993 04:16:10 -0700 Subject: [PATCH] pa.md (split for symbol_ref+int): New define_split for hte combiner. * pa.md (split for symbol_ref+int): New define_split for hte combiner. From-SVN: r3572 --- gcc/config/pa/pa.md | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/gcc/config/pa/pa.md b/gcc/config/pa/pa.md index 39d78344286..bcb1a0df2f7 100644 --- a/gcc/config/pa/pa.md +++ b/gcc/config/pa/pa.md @@ -994,6 +994,20 @@ "ldo R'%G2(%1),%0" [(set_attr "length" "1")]) +;; Now that a symbolic_address plus a constant is broken up early +;; in the compilation phase (for better CSE) we need a special +;; combiner pattern to load the symbolic address plus the constant +;; in only 2 instructions. (For cases where the symbolic address +;; was not a common subexpression.) +(define_split + [(set (match_operand:SI 0 "register_operand" "") + (match_operand 1 "symbolic_operand" "")) + (clobber (match_operand:SI 2 "register_operand" ""))] + "" + [(set (match_dup 2) (high:SI (match_dup 1))) + (set (match_dup 0) (lo_sum:SI (match_dup 2) (match_dup 1)))] + "") + (define_expand "movhi" [(set (match_operand:HI 0 "general_operand" "") (match_operand:HI 1 "general_operand" ""))] -- 2.30.2