Merge of the clightgen branch:

- Alternate semantics for Clight where function parameters are temporaries,
  not variables
- New pass SimplLocals that turns non-addressed local variables into
  temporaries
- Simplified Csharpminor, Cshmgen and Cminorgen accordingly
- SimplExpr starts its temporaries above variable names, therefoe
  Cminorgen no longer needs to encode variable names and temps names.
- Simplified Cminor parser & printer, as well as Errors, accordingly.
- New tool clightgen to produce Clight AST in Coq-parsable .v files.
- Removed side condition "return type is void" on rules skip_seq
  in the semantics of CompCert C, Clight, C#minor, Cminor.
- Adapted RTLgenproof accordingly (now uses a memory extension).


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2083 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/Camlcoq.ml b/lib/Camlcoq.ml
index 57b1b56..00c2103 100644
--- a/lib/Camlcoq.ml
+++ b/lib/Camlcoq.ml
@@ -106,7 +106,9 @@ let extern_atom a =
   try
     Hashtbl.find string_of_atom a
   with Not_found ->
-    Printf.sprintf "<unknown atom %ld>" (camlint_of_positive a)
+    Printf.sprintf "$%ld" (camlint_of_positive a)
+
+let first_unused_ident () = !next_atom
 
 (* Strings *)