diff options
Diffstat (limited to 'src/vhdl/vhdl-ieee-numeric.adb')
| -rw-r--r-- | src/vhdl/vhdl-ieee-numeric.adb | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/vhdl/vhdl-ieee-numeric.adb b/src/vhdl/vhdl-ieee-numeric.adb index fae624d78..b7fb3975d 100644 --- a/src/vhdl/vhdl-ieee-numeric.adb +++ b/src/vhdl/vhdl-ieee-numeric.adb @@ -568,6 +568,14 @@ package body Vhdl.Ieee.Numeric is (Type_Signed => Iir_Predefined_Ieee_Numeric_Std_Sra_Sgn_Int, Type_Unsigned => Iir_Predefined_Ieee_Numeric_Std_Sra_Uns_Int); + Leftmost_Patterns : constant Shift_Pattern_Type := + (Type_Signed => Iir_Predefined_Ieee_Numeric_Std_Find_Leftmost_Sgn, + Type_Unsigned => Iir_Predefined_Ieee_Numeric_Std_Find_Leftmost_Uns); + + Rightmost_Patterns : constant Shift_Pattern_Type := + (Type_Signed => Iir_Predefined_Ieee_Numeric_Std_Find_Rightmost_Sgn, + Type_Unsigned => Iir_Predefined_Ieee_Numeric_Std_Find_Rightmost_Uns); + Error : exception; procedure Extract_Declarations (Pkg_Decl : Iir_Package_Declaration; @@ -801,6 +809,24 @@ package body Vhdl.Ieee.Numeric is Set_Implicit_Definition (Decl, Res); end if; end Handle_Shift; + + procedure Handle_Find (Pats : Shift_Pattern_Type) + is + Res : Iir_Predefined_Functions; + begin + if Arg1_Kind = Arg_Vect + and then Arg2_Kind = Arg_Scal + and then Arg2_Sign = Type_Log + then + case Arg1_Sign is + when Type_Signed | Type_Unsigned => + Res := Pats (Arg1_Sign); + when others => + Res := Iir_Predefined_None; + end case; + Set_Implicit_Definition (Decl, Res); + end if; + end Handle_Find; begin Decl := Get_Declaration_Chain (Pkg_Decl); @@ -951,6 +977,10 @@ package body Vhdl.Ieee.Numeric is Handle_Shift (Rol_Patterns, Type_Unsigned); when Name_Rotate_Right => Handle_Shift (Ror_Patterns, Type_Unsigned); + when Name_Find_Leftmost => + Handle_Find (Leftmost_Patterns); + when Name_Find_Rightmost => + Handle_Find (Rightmost_Patterns); when Name_To_01 => Handle_To_01; when others => |