Remove experimental hunk that wasn't supposed to be checked in.

From-SVN: r30298

diff --git a/gcc/cse.c b/gcc/cse.c
index 1478556aa3822c5751688a046ca4e4c22813b343..f6ebb0682972fbefff638d9734a1682d536724dd 100644 (file)
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -5517,32 +5517,11 @@ cse_insn (insn, libcall_insn)
                && GET_CODE (XEXP (XEXP (src_const, 0), 0)) == LABEL_REF
                && GET_CODE (XEXP (XEXP (src_const, 0), 1)) == LABEL_REF))
        {
-         rtx simplified_src_const;
          tem = find_reg_note (insn, REG_EQUAL, NULL_RTX);
          
          /* Make sure that the rtx is not shared with any other insn.  */
          src_const = copy_rtx (src_const);
 
-         /* Try to simplify SRC_CONST.
-
-            The primary purpose behind simplifying the note is to allow
-            for easier removal of library call sequences later.  Consider
-            a udiv libcall where we can determine the second argument is
-            a constant.  SRC_CONST would look like:
-
-               (udiv (reg) (const_int 2**n))
-
-            That RTL expression will simplify into:
-
-               (lshiftrt (reg) (const_int n))
-
-            A target using library calls for division is more likely to
-            have a lshiftrt insn.  Thus, it is more likely that the libcall
-            can be deleted in delete_trivially_dead_insns if we simplify
-            the note.  */
-         simplified_src_const = simplify_rtx (src_const);
-         src_const = simplified_src_const ? simplified_src_const : src_const;
-         
          /* Record the actual constant value in a REG_EQUAL note, making
             a new one if one does not already exist.  */
          if (tem)