diff options
| author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-12-20 13:05:53 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2013-12-20 13:05:53 +0000 |
| commit | 7698300cfe2d3f944ce2e1d4a60a263620487718 (patch) | |
| tree | 74292bb5f65bc797906b5c768df2e2e937e869b6 /backend/Liveness.v | |
| parent | c511207bd0f25c4199770233175924a725526bd3 (diff) | |
| download | compcert-kvx-7698300cfe2d3f944ce2e1d4a60a263620487718.tar.gz compcert-kvx-7698300cfe2d3f944ce2e1d4a60a263620487718.zip | |
Merge of branch value-analysis.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2381 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/Liveness.v')
| -rw-r--r-- | backend/Liveness.v | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/backend/Liveness.v b/backend/Liveness.v index 23faf41c..3a5bde97 100644 --- a/backend/Liveness.v +++ b/backend/Liveness.v @@ -110,7 +110,7 @@ Module RegsetLat := LFSet(Regset). Module DS := Backward_Dataflow_Solver(RegsetLat)(NodeSetBackward). Definition analyze (f: function): option (PMap.t Regset.t) := - DS.fixpoint f.(fn_code) successors_instr (transfer f) nil. + DS.fixpoint f.(fn_code) successors_instr (transfer f). (** Basic property of the liveness information computed by [analyze]. *) @@ -122,6 +122,7 @@ Lemma analyze_solution: Regset.Subset (transfer f s live!!s) live!!n. Proof. unfold analyze; intros. eapply DS.fixpoint_solution; eauto. + intros. unfold transfer; rewrite H2. apply DS.L.eq_refl. Qed. (** Given an RTL function, compute (for every PC) the list of |