From: Yannick Moy <m...@adacore.com>
Subprograms with these Skip(_Flow_And)_Proof annotations should not be
inlined in GNATprove, as we want to skip part of the analysis for their
body.
gcc/ada/
* inline.adb (Can_Be_Inlined_In_GNATprove_Mode): Check for
Skip_Proof and Skip_Flow_And_Proof annotations for deciding
whether a subprogram can be inlined.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/inline.adb | 49 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/gcc/ada/inline.adb b/gcc/ada/inline.adb
index edb90a9fe20..db8b4164e87 100644
--- a/gcc/ada/inline.adb
+++ b/gcc/ada/inline.adb
@@ -1503,6 +1503,10 @@ package body Inline is
-- an unconstrained record type with per-object constraints on component
-- types.
+ function Has_Skip_Proof_Annotation (Id : Entity_Id) return Boolean;
+ -- Returns True if subprogram Id has an annotation Skip_Proof or
+ -- Skip_Flow_And_Proof.
+
function Has_Some_Contract (Id : Entity_Id) return Boolean;
-- Return True if subprogram Id has any contract. The presence of
-- Extensions_Visible or Volatile_Function is also considered as a
@@ -1701,6 +1705,45 @@ package body Inline is
return False;
end Has_Formal_With_Discriminant_Dependent_Fields;
+ -------------------------------
+ -- Has_Skip_Proof_Annotation --
+ -------------------------------
+
+ function Has_Skip_Proof_Annotation (Id : Entity_Id) return Boolean is
+ Decl : Node_Id := Unit_Declaration_Node (Id);
+
+ begin
+ Next (Decl);
+
+ while Present (Decl)
+ and then Nkind (Decl) = N_Pragma
+ loop
+ if Get_Pragma_Id (Decl) = Pragma_Annotate
+ and then List_Length (Pragma_Argument_Associations (Decl)) = 3
+ then
+ declare
+ Arg1 : constant Node_Id :=
+ First (Pragma_Argument_Associations (Decl));
+ Arg2 : constant Node_Id := Next (Arg1);
+ Arg1_Name : constant String :=
+ Get_Name_String (Chars (Get_Pragma_Arg (Arg1)));
+ Arg2_Name : constant String :=
+ Get_Name_String (Chars (Get_Pragma_Arg (Arg2)));
+ begin
+ if Arg1_Name = "gnatprove"
+ and then Arg2_Name in "skip_proof" | "skip_flow_and_proof"
+ then
+ return True;
+ end if;
+ end;
+ end if;
+
+ Next (Decl);
+ end loop;
+
+ return False;
+ end Has_Skip_Proof_Annotation;
+
-----------------------
-- Has_Some_Contract --
-----------------------
@@ -1903,6 +1946,12 @@ package body Inline is
elsif Maybe_Traversal_Function (Id) then
return False;
+ -- Do not inline subprograms with the Skip_Proof or Skip_Flow_And_Proof
+ -- annotation, which should be handled separately.
+
+ elsif Has_Skip_Proof_Annotation (Id) then
+ return False;
+
-- Otherwise, this is a subprogram declared inside the private part of a
-- package, or inside a package body, or locally in a subprogram, and it
-- does not have any contract. Inline it.
--
2.40.0
