Merge of "newspilling" branch:

- Support single-precision floats as first-class values
- Introduce chunks Many32, Many64 and types Tany32, Tany64 to
  support saving and restoring registers without knowing
  the exact types (int/single/float) of their contents, just
  their sizes.
- Memory model: generalize the opaque encoding of pointers to
  apply to any value, not just pointers, if chunks Many32/Many64
  are selected.
- More properties of FP arithmetic proved.


git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2537 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 3 insertions, 1 deletions

diff --git a/cfrontend/Csharpminor.v b/cfrontend/Csharpminor.v
index 4b2e915c..d37fa819 100644
--- a/cfrontend/Csharpminor.v
+++ b/cfrontend/Csharpminor.v
@@ -33,7 +33,8 @@ Require Import Smallstep.
 
 Inductive constant : Type :=
   | Ointconst: int -> constant          (**r integer constant *)
-  | Ofloatconst: float -> constant      (**r floating-point constant *)
+  | Ofloatconst: float -> constant      (**r double-precision floating-point constant *)
+  | Osingleconst: float32 -> constant   (**r single-precision floating-point constant *)
   | Olongconst: int64 -> constant.      (**r long integer constant *)
 
 Definition unary_operation : Type := Cminor.unary_operation.
@@ -253,6 +254,7 @@ Definition eval_constant (cst: constant) : option val :=
   match cst with
   | Ointconst n => Some (Vint n)
   | Ofloatconst n => Some (Vfloat n)
+  | Osingleconst n => Some (Vsingle n)
   | Olongconst n => Some (Vlong n)
   end.