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, 0 insertions, 1 deletions

diff --git a/backend/CminorSel.v b/backend/CminorSel.v
index bb5143c..a063544 100644
--- a/backend/CminorSel.v
+++ b/backend/CminorSel.v
@@ -246,7 +246,6 @@ Inductive step: state -> trace -> state -> Prop :=
         E0 (State f Sskip k sp e m)
   | step_skip_call: forall f k sp e m m',
       is_call_cont k ->
-      f.(fn_sig).(sig_res) = None ->
       Mem.free m sp 0 f.(fn_stackspace) = Some m' ->
       step (State f Sskip k (Vptr sp Int.zero) e m)
         E0 (Returnstate Vundef k m')