Merge of the reuse-temps branch:

- Reload temporaries are marked as destroyed (set to Vundef) across
  operations in the semantics of LTL, LTLin, Linear and Mach, 
  allowing Asmgen to reuse them.
- Added IA32 port.
- Cleaned up float conversions and axiomatization of floats.



git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1499 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e

1 files changed, 6 insertions, 0 deletions

diff --git a/common/Values.v b/common/Values.v
index 236a5ae..af242c9 100644
--- a/common/Values.v
+++ b/common/Values.v
@@ -139,6 +139,12 @@ Definition floatofintu (v: val) : val :=
   | _ => Vundef
   end.
 
+Definition floatofwords (v1 v2: val) : val :=
+  match v1, v2 with
+  | Vint n1, Vint n2 => Vfloat (Float.from_words n1 n2)
+  | _, _ => Vundef
+  end.
+
 Definition notint (v: val) : val :=
   match v with
   | Vint n => Vint (Int.xor n Int.mone)