diff options
author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-11-18 21:07:29 +0100 |
---|---|---|
committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2020-11-18 21:07:29 +0100 |
commit | 8384d27c122ec4ca4b7ad0f524df52b61a49c66a (patch) | |
tree | d86ff8780c4435d3b4fe92b5251e0f9b447b86c7 /backend/Selection.v | |
parent | 362bdda28ca3c4dcc992575cbbe9400b64425990 (diff) | |
parent | e6e036b3f285d2f3ba2a5036a413eb9c7d7534cd (diff) | |
download | compcert-kvx-8384d27c122ec4ca4b7ad0f524df52b61a49c66a.tar.gz compcert-kvx-8384d27c122ec4ca4b7ad0f524df52b61a49c66a.zip |
Merge branch 'master' (Absint 3.8) into kvx-work-merge3.8
Diffstat (limited to 'backend/Selection.v')
-rw-r--r-- | backend/Selection.v | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/backend/Selection.v b/backend/Selection.v index 342bd8ca..8667922f 100644 --- a/backend/Selection.v +++ b/backend/Selection.v @@ -251,10 +251,16 @@ Function sel_known_builtin (bf: builtin_function) (args: exprlist) := Some (sel_select ty a1 a2 a3) | BI_standard BI_fabs, a1 ::: Enil => Some (SelectOp.absf a1) + | BI_standard BI_fabsf, a1 ::: Enil => + Some (SelectOp.absfs a1) | _, _ => None end. +(** A CminorSel statement that does nothing, like [Sskip], but reduces. *) + +Definition Sno_op := Sseq Sskip Sskip. + (** Builtin functions in general *) Definition sel_builtin_default (optid: option ident) (ef: external_function) @@ -264,17 +270,22 @@ Definition sel_builtin_default (optid: option ident) (ef: external_function) Definition sel_builtin (optid: option ident) (ef: external_function) (args: list Cminor.expr) := - match optid, ef with - | Some id, EF_builtin name sg => + match ef with + | EF_builtin name sg => match lookup_builtin_function name sg with | Some bf => - match sel_known_builtin bf (sel_exprlist args) with - | Some a => Sassign id a - | None => sel_builtin_default optid ef args + match optid with + | Some id => + match sel_known_builtin bf (sel_exprlist args) with + | Some a => Sassign id a + | None => sel_builtin_default optid ef args + end + | None => + Sno_op (**r builtins with semantics are pure *) end | None => sel_builtin_default optid ef args end - | _, _ => + | _ => sel_builtin_default optid ef args end. |