diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-23 08:54:56 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-23 08:54:56 +0000 |
| commit | 2a0168fea37b68ad14e2cb60bf215111e49d4870 (patch) | |
| tree | 2f59373790d8ce3a5df66ef7a692271cf0666c6c /powerpc/NeedOp.v | |
| parent | 00805153cf9b88aa07cc6694b17d93f5ba2e7de8 (diff) | |
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 'powerpc/NeedOp.v')
| -rw-r--r-- | powerpc/NeedOp.v | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/powerpc/NeedOp.v b/powerpc/NeedOp.v index d43af3c..e130749 100644 --- a/powerpc/NeedOp.v +++ b/powerpc/NeedOp.v @@ -25,6 +25,7 @@ Definition needs_of_operation (op: operation) (nv: nval): list nval := | Omove => op1 nv | Ointconst n => nil | Ofloatconst n => nil + | Osingleconst n => nil | Oaddrsymbol id ofs => nil | Oaddrstack ofs => nil | Ocast8signed => op1 (sign_ext 8 nv) @@ -52,7 +53,9 @@ Definition needs_of_operation (op: operation) (nv: nval): list nval := | Oroli amount mask => op1 (default nv) | Onegf | Oabsf => op1 (default nv) | Oaddf | Osubf | Omulf | Odivf => op2 (default nv) - | Osingleoffloat => op1 (singleoffloat nv) + | Onegfs | Oabsfs => op1 (default nv) + | Oaddfs | Osubfs | Omulfs | Odivfs => op2 (default nv) + | Osingleoffloat | Ofloatofsingle => op1 (default nv) | Ointoffloat => op1 (default nv) | Ofloatofwords | Omakelong => op2 (default nv) | Olowlong | Ohighlong => op1 (default nv) @@ -66,7 +69,6 @@ Definition operation_is_redundant (op: operation) (nv: nval): bool := | Oandimm n => andimm_redundant nv n | Oorimm n => orimm_redundant nv n | Orolm amount mask => rolm_redundant nv amount mask - | Osingleoffloat => singleoffloat_redundant nv | _ => false end. @@ -136,7 +138,6 @@ Proof. - apply or_sound; auto. apply notint_sound; rewrite bitwise_idem; auto. - apply shrimm_sound; auto. - apply rolm_sound; auto. -- apply singleoffloat_sound; auto. - destruct (eval_condition c args m) as [b|] eqn:EC; simpl in H2. erewrite needs_of_condition_sound by eauto. subst v; simpl. auto with na. @@ -156,7 +157,6 @@ Proof. - apply andimm_redundant_sound; auto. - apply orimm_redundant_sound; auto. - apply rolm_redundant_sound; auto. -- apply singleoffloat_redundant_sound; auto. Qed. End SOUNDNESS. |