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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 /arm/NeedOp.v | |
| parent | 00805153cf9b88aa07cc6694b17d93f5ba2e7de8 (diff) | |
| download | compcert-kvx-2a0168fea37b68ad14e2cb60bf215111e49d4870.tar.gz compcert-kvx-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 'arm/NeedOp.v')
| -rw-r--r-- | arm/NeedOp.v | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arm/NeedOp.v b/arm/NeedOp.v index 3fb0d721..e91ea64d 100644 --- a/arm/NeedOp.v +++ b/arm/NeedOp.v @@ -42,6 +42,7 @@ Definition needs_of_operation (op: operation) (nv: nval): list nval := | Omove => nv::nil | Ointconst n => nil | Ofloatconst n => nil + | Osingleconst n => nil | Oaddrsymbol id ofs => nil | Oaddrstack ofs => nil | Ocast8signed => op1 (sign_ext 8 nv) @@ -74,8 +75,11 @@ Definition needs_of_operation (op: operation) (nv: nval): list nval := | Oshrximm _ => 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) + | Ofloatofsingle | Osingleoffloat => op1 (default nv) | Ointoffloat | Ointuoffloat | Ofloatofint | Ofloatofintu => op1 (default nv) + | Ointofsingle | Ointuofsingle | Osingleofint | Osingleofintu => op1 (default nv) | Omakelong => op2 (default nv) | Olowlong | Ohighlong => op1 (default nv) | Ocmp c => needs_of_condition c @@ -87,7 +91,6 @@ Definition operation_is_redundant (op: operation) (nv: nval): bool := | Ocast16signed => sign_ext_redundant 16 nv | Oandimm n => andimm_redundant nv n | Oorimm n => orimm_redundant nv n - | Osingleoffloat => singleoffloat_redundant nv | _ => false end. @@ -180,7 +183,6 @@ Proof. - apply notint_sound; auto. - apply notint_sound. apply needs_of_shift_sound; auto. - apply needs_of_shift_sound; auto. -- apply singleoffloat_sound; auto. Qed. Lemma operation_is_redundant_sound: @@ -195,7 +197,6 @@ Proof. - apply sign_ext_redundant_sound; auto. omega. - apply andimm_redundant_sound; auto. - apply orimm_redundant_sound; auto. -- apply singleoffloat_redundant_sound; auto. Qed. End SOUNDNESS. |