[Bug middle-end/67285] New: ICE with (rdiv (POW:s @0 REAL_CST at 1) @0)

["hs.naveen2u at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67285

            Bug ID: 67285
           Summary: ICE with (rdiv (POW:s @0 REAL_CST@1) @0)
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hs.naveen2u at gmail dot com
  Target Milestone: ---

The following pattern should work as expected:-

+ /* Simplify pow(x,c) / x -> pow(x,c-1). */
+ (simplify
+  (rdiv (POW:s @0 REAL_CST@1) @0)
+  (if (!TREE_OVERFLOW (@1))
+   (POW @0 (minus @1 { build_one_cst (type); }))))

However, it generates the following error:-
internal compiler error: tree check: expected ssa_name, have var_decl in
simplify_builtin_call, at tree-ssa-forwprop.c:1259

Its due to REAL_CST@1