Comment 16 for bug 926855

(In reply to comment #4)
> (If the pattern of comment #3 is to blame, then this ...

...probably fix it.

Index: arm.md
===================================================================
--- arm.md (revision 184318)
+++ arm.md (working copy)
@@ -3505,7 +3505,12 @@
      (match_operand:SI 2 "nonmemory_operand" "N,l")))]
   "TARGET_THUMB1"
   "lsl\\t%0, %1, %2"
- [(set_attr "length" "2")
+ [(set (attr "length")
+ (if_then_else
+ (eq (symbol_ref ("which_alternative"))
+ (const_int 0))
+ (const_int 4)
+ (const_int 2)))
    (set_attr "conds" "set")])

 (define_expand "ashrdi3"

And otherwise: sorry for all the noise :-)