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, 1 insertions, 1 deletions

diff --git a/common/Errors.v b/common/Errors.v
index a70ea6e..6b863a0 100644
--- a/common/Errors.v
+++ b/common/Errors.v
@@ -31,7 +31,7 @@ Set Implicit Arguments.
 Inductive errcode: Type :=
   | MSG: string -> errcode
   | CTX: positive -> errcode    (* a top-level identifier *)
-  | CTXL: positive -> errcode.  (* an encoded local identifier *)
+  | POS: positive -> errcode.   (* a positive integer, e.g. a PC *)
 
 Definition errmsg: Type := list errcode.