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, 4 insertions, 0 deletions

diff --git a/cfrontend/PrintClight.ml b/cfrontend/PrintClight.ml
index 49705c46..c5a6e6e1 100644
--- a/cfrontend/PrintClight.ml
+++ b/cfrontend/PrintClight.ml
@@ -43,6 +43,7 @@ let rec precedence = function
   | Efield _ -> (16, LtoR)
   | Econst_int _ -> (16, NA)
   | Econst_float _ -> (16, NA)
+  | Econst_single _ -> (16, NA)
   | Econst_long _ -> (16, NA)
   | Eunop _ -> (15, RtoL)
   | Eaddrof _ -> (15, RtoL)
@@ -82,6 +83,8 @@ let rec expr p (prec, e) =
       fprintf p "%ld" (camlint_of_coqint n)
   | Econst_float(f, _) ->
       fprintf p "%F" (camlfloat_of_coqfloat f)
+  | Econst_single(f, _) ->
+      fprintf p "%Ff" (camlfloat_of_coqfloat32 f)
   | Econst_long(n, Tlong(Unsigned, _)) ->
       fprintf p "%LuLLU" (camlint64_of_coqint n)
   | Econst_long(n, _) ->
@@ -269,6 +272,7 @@ let rec collect_expr e =
   match e with
   | Econst_int _ -> ()
   | Econst_float _ -> ()
+  | Econst_single _ -> ()
   | Econst_long _ -> ()
   | Evar _ -> ()
   | Etempvar _ -> ()