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| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-01-28 13:25:12 +0100 |
|---|---|---|
| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-01-28 13:25:12 +0100 |
| commit | 47bcd22f7e1febf10bd0629c1774b7ab39fac872 (patch) | |
| tree | 86515f5dd3565447a470b36ab904dcf27d57681b /backend/CSE2.v | |
| parent | 76049f12161c0eeeeec8841d2cc07d6601f39b4f (diff) | |
| download | compcert-kvx-47bcd22f7e1febf10bd0629c1774b7ab39fac872.tar.gz compcert-kvx-47bcd22f7e1febf10bd0629c1774b7ab39fac872.zip | |
CSE2 now works for expressions
Diffstat (limited to 'backend/CSE2.v')
| -rw-r--r-- | backend/CSE2.v | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/backend/CSE2.v b/backend/CSE2.v index 0bd5bf81..5b850cbb 100644 --- a/backend/CSE2.v +++ b/backend/CSE2.v @@ -343,8 +343,8 @@ Definition apply_instr instr (rel : RELATION.t) : RB.t := | Ijumptable _ _ => Some rel | Istore _ _ _ _ _ => Some (kill_mem rel) | Iop op args dst _ => Some (gen_oper op dst args rel) - | Iload _ _ _ dst _ - | Icall _ _ _ dst _ => Some (kill_reg dst rel) + | Iload _ _ _ dst _ => Some (kill_reg dst rel) + | Icall _ _ _ dst _ => Some (kill_reg dst (kill_mem rel)) | Ibuiltin _ _ res _ => Some (RELATION.top) (* TODO (kill_builtin_res res x) *) | Itailcall _ _ _ | Ireturn _ => RB.bot end. @@ -377,11 +377,6 @@ Definition subst_arg (fmap : option (PMap.t RB.t)) (pc : node) (x : reg) : reg : Definition subst_args fmap pc := List.map (subst_arg fmap pc). -Definition gen_move src dst s := - if peq src dst - then Inop s - else Iop Omove (src::nil) dst s. - (* Transform *) Definition find_op_in_fmap fmap pc op args := match fmap with @@ -399,7 +394,7 @@ Definition transf_instr (fmap : option (PMap.t RB.t)) | Iop op args dst s => match find_op_in_fmap fmap pc op args with | None => Iop op (subst_args fmap pc args) dst s - | Some src => gen_move src dst s + | Some src => Iop Omove (src::nil) dst s end | Iload chunk addr args dst s => Iload chunk addr (subst_args fmap pc args) dst s |