From: wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 14 Apr 1997 21:57:14 +0000 (+0000)
Subject: (xtrct_left, xtrct_right): New patterns.
X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=commitdiff_plain;h=b7d3d83bbff74cac04a2310ccb53067abf84f8fa

(xtrct_left, xtrct_right): New patterns.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@13904 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index 342b3e40911..e5ee8685df0 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -1296,6 +1296,26 @@
 	      (const_string "14")))
     (set_attr "type" "arith")])
 
+;; These patterns are found in expansions of DImode shifts by 16, and
+;; allow the xtrct instruction to be generated from C source.
+
+(define_insn "xtrct_left"
+  [(set (match_operand:SI 0 "arith_reg_operand" "=r")
+        (ior:SI (ashift:SI (match_operand:SI 1 "arith_reg_operand" "r")
+			   (const_int 16))
+ 	        (lshiftrt:SI (match_operand:SI 2 "arith_reg_operand" "0")
+			     (const_int 16))))]
+  ""
+  "xtrct	%1,%0")
+
+(define_insn "xtrct_right"
+  [(set (match_operand:SI 0 "arith_reg_operand" "=r")
+        (ior:SI (lshiftrt:SI (match_operand:SI 1 "arith_reg_operand" "0")
+			     (const_int 16))
+ 	        (ashift:SI (match_operand:SI 2 "arith_reg_operand" "r")
+			   (const_int 16))))]
+  ""
+  "xtrct	%2,%0")
 
 ;; -------------------------------------------------------------------------
 ;; Unary arithmetic