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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-23 08:54:56 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-23 08:54:56 +0000 |
commit | 2a0168fea37b68ad14e2cb60bf215111e49d4870 (patch) | |
tree | 2f59373790d8ce3a5df66ef7a692271cf0666c6c /cfrontend/Ctypes.v | |
parent | 00805153cf9b88aa07cc6694b17d93f5ba2e7de8 (diff) | |
download | compcert-2a0168fea37b68ad14e2cb60bf215111e49d4870.tar.gz compcert-2a0168fea37b68ad14e2cb60bf215111e49d4870.zip |
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
Diffstat (limited to 'cfrontend/Ctypes.v')
-rw-r--r-- | cfrontend/Ctypes.v | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/cfrontend/Ctypes.v b/cfrontend/Ctypes.v index 41d0dcbf..c437a6bc 100644 --- a/cfrontend/Ctypes.v +++ b/cfrontend/Ctypes.v @@ -196,6 +196,18 @@ Definition typeconv (ty: type) : type := | _ => remove_attributes ty end. +(** Default conversion for arguments to an unprototyped or variadic function. + Like [typeconv] but also converts single floats to double floats. *) + +Definition default_argument_conversion (ty: type) : type := + match ty with + | Tint (I8 | I16 | IBool) _ _ => Tint I32 Signed noattr + | Tfloat _ _ => Tfloat F64 noattr + | Tarray t sz a => Tpointer t noattr + | Tfunction _ _ _ => Tpointer ty noattr + | _ => remove_attributes ty + end. + (** * Operations over types *) (** Alignment of a type, in bytes. *) @@ -723,12 +735,3 @@ Fixpoint typlist_of_typelist (tl: typelist) : list AST.typ := Definition signature_of_type (args: typelist) (res: type) (cc: calling_convention): signature := mksignature (typlist_of_typelist args) (opttyp_of_type res) cc. -(** Like [typ_of_type], but apply default argument promotion. *) - -Definition typ_of_type_default (t: type) : AST.typ := - match t with - | Tfloat _ _ => AST.Tfloat - | Tlong _ _ => AST.Tlong - | _ => AST.Tint - end. - |