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-rw-r--r--src/synth/netlists-builders.adb2
-rw-r--r--src/synth/synth-expr.adb3
-rw-r--r--src/vhdl/vhdl-ieee-numeric.adb24
-rw-r--r--src/vhdl/vhdl-nodes.ads6
4 files changed, 34 insertions, 1 deletions
diff --git a/src/synth/netlists-builders.adb b/src/synth/netlists-builders.adb
index 8b239573f..51b09fdfd 100644
--- a/src/synth/netlists-builders.adb
+++ b/src/synth/netlists-builders.adb
@@ -303,6 +303,8 @@ package body Netlists.Builders is
Get_Identifier ("mul"), Id_Mul);
Create_Monadic_Module (Design, Res.M_Monadic (Id_Not), Name_Not, Id_Not);
+ Create_Monadic_Module (Design, Res.M_Monadic (Id_Neg),
+ Get_Identifier ("neg"), Id_Neg);
Create_Compare_Module (Design, Res.M_Compare (Id_Eq),
Get_Identifier ("eq"), Id_Eq);
diff --git a/src/synth/synth-expr.adb b/src/synth/synth-expr.adb
index d8645eeaf..71e1469c1 100644
--- a/src/synth/synth-expr.adb
+++ b/src/synth/synth-expr.adb
@@ -552,6 +552,9 @@ package body Synth.Expr is
return Synth_Bit_Monadic (Id_Not);
when Iir_Predefined_Ieee_1164_Vector_Not =>
return Synth_Vec_Monadic (Id_Not);
+ when Iir_Predefined_Ieee_Numeric_Std_Neg_Uns
+ | Iir_Predefined_Ieee_Numeric_Std_Neg_Sgn =>
+ return Synth_Vec_Monadic (Id_Neg);
when others =>
Error_Msg_Synth
(+Loc,
diff --git a/src/vhdl/vhdl-ieee-numeric.adb b/src/vhdl/vhdl-ieee-numeric.adb
index 0c76ff533..773a41770 100644
--- a/src/vhdl/vhdl-ieee-numeric.adb
+++ b/src/vhdl/vhdl-ieee-numeric.adb
@@ -34,6 +34,9 @@ package body Vhdl.Ieee.Numeric is
type Binary_Pattern_Type is array (Pkg_Kind, Sign_Num_Kind, Args_Kind)
of Iir_Predefined_Functions;
+ type Unary_Pattern_Type is array (Pkg_Kind, Sign_Num_Kind)
+ of Iir_Predefined_Functions;
+
Add_Patterns : constant Binary_Pattern_Type :=
(Pkg_Std =>
(Type_Unsigned =>
@@ -88,6 +91,13 @@ package body Vhdl.Ieee.Numeric is
(others =>
(others => Iir_Predefined_None)));
+ Neg_Patterns : constant Unary_Pattern_Type :=
+ (Pkg_Std =>
+ (Type_Unsigned => Iir_Predefined_Ieee_Numeric_Std_Neg_Uns,
+ Type_Signed => Iir_Predefined_Ieee_Numeric_Std_Neg_Sgn),
+ Pkg_Bit =>
+ (others => Iir_Predefined_None));
+
Error : exception;
procedure Extract_Declarations (Pkg_Decl : Iir_Package_Declaration;
@@ -168,6 +178,11 @@ package body Vhdl.Ieee.Numeric is
Set_Implicit_Definition (Decl, Pats (Pkg, Sign, Kind));
end Handle_Binary;
+ procedure Handle_Unary (Pats : Unary_Pattern_Type) is
+ begin
+ Set_Implicit_Definition (Decl, Pats (Pkg, Arg1_Sign));
+ end Handle_Unary;
+
begin
Decl := Get_Declaration_Chain (Pkg_Decl);
@@ -234,6 +249,7 @@ package body Vhdl.Ieee.Numeric is
Classify_Arg (Arg1, Arg1_Sign, Arg1_Kind);
Arg2 := Get_Chain (Arg1);
if Is_Valid (Arg2) then
+ -- Dyadic function.
Classify_Arg (Arg2, Arg2_Sign, Arg2_Kind);
case Get_Identifier (Decl) is
@@ -250,6 +266,14 @@ package body Vhdl.Ieee.Numeric is
when others =>
null;
end case;
+ else
+ -- Monadic function.
+ case Get_Identifier (Decl) is
+ when Name_Op_Minus =>
+ Handle_Unary (Neg_Patterns);
+ when others =>
+ null;
+ end case;
end if;
when Iir_Kind_Non_Object_Alias_Declaration
diff --git a/src/vhdl/vhdl-nodes.ads b/src/vhdl/vhdl-nodes.ads
index 3f4213ca7..940b616c4 100644
--- a/src/vhdl/vhdl-nodes.ads
+++ b/src/vhdl/vhdl-nodes.ads
@@ -4827,7 +4827,11 @@ package Vhdl.Nodes is
Iir_Predefined_Ieee_Numeric_Std_Eq_Nat_Uns,
Iir_Predefined_Ieee_Numeric_Std_Eq_Sgn_Sgn,
Iir_Predefined_Ieee_Numeric_Std_Eq_Sgn_Int,
- Iir_Predefined_Ieee_Numeric_Std_Eq_Int_Sgn
+ Iir_Predefined_Ieee_Numeric_Std_Eq_Int_Sgn,
+
+ -- Unary functions for numeric_std
+ Iir_Predefined_Ieee_Numeric_Std_Neg_Uns,
+ Iir_Predefined_Ieee_Numeric_Std_Neg_Sgn
);
-- Return TRUE iff FUNC is a short-cut predefined function.