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bound attributes: handle vhdl null ranges

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This commit is contained in:
N. Engelhardt 2024-12-12 11:42:39 +01:00
parent 03033ab6d4
commit 378864d33b
5 changed files with 88 additions and 25 deletions
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53
tests/verific/bounds.sv
View file

@ -1,14 +1,45 @@
module test (
input ia,
output oa,
input [0:0] ib,
output [0:0] ob,
input [3:0] ic,
output [3:0] oc
);
typedef enum {IDLE, RUN, STOP} state_t;
assign oa = ia;
assign ob = ib;
assign oc = ic;
typedef struct {
logic [7:0] field1;
int field2;
} my_struct_t;
// Submodule to handle the interface ports
module submodule (
my_ifc i_ifc,
my_ifc o_ifc
);
// Connect the interface signals
assign o_ifc.data = i_ifc.data;
endmodule
module test (
input i_a,
output o_a,
input [0:0] i_b,
output [0:0] o_b,
input [3:0] i_c,
output [3:0] o_c,
input logic i_d,
output logic o_d,
input bit [7:0] i_e,
output bit [7:0] o_e,
input int i_f,
output int o_f,
input state_t i_h,
output state_t o_h,
input my_struct_t i_i,
output my_struct_t o_i
);
assign o_a = i_a;
assign o_b = i_b;
assign o_c = i_c;
assign o_d = i_d;
assign o_e = i_e;
assign o_f = i_f;
assign o_h = i_h;
assign o_i = i_i;
endmodule

3
tests/verific/bounds.vhd
View file

@ -83,6 +83,7 @@ entity test is
end entity test;
architecture Behavioral of test is
signal integer_with_range : INTEGER range -1 to 100;
begin
bit_out <= bit_in;
bit_vector_out <= bit_vector_in;
@ -103,4 +104,6 @@ begin
integer_null_range_out <= integer_null_range_in;
natural_out <= natural_in;
positive_out <= positive_in;
integer_with_range <= 42;
end architecture Behavioral;

31
tests/verific/bounds.ys
View file

@ -98,10 +98,10 @@ select -assert-count 1 w:integer_single_value_out a:bottom_bound=3'bs101 %i
select -assert-count 1 w:integer_single_value_out a:top_bound=3'bs101 %i
# integer with null range: scalar type
# select -assert-count 1 w:integer_null_range_in a:bottom_bound=4'bs0111 %i
# select -assert-count 1 w:integer_null_range_in a:top_bound=4'bs1111 %i
select -assert-count 1 w:integer_null_range_out a:bottom_bound=2'bs00 %i
select -assert-count 1 w:integer_null_range_out a:top_bound=2'bs11 %i
select -assert-count 1 w:integer_null_range_in a:bottom_bound=4'bs0111 %i
select -assert-count 1 w:integer_null_range_in a:top_bound=4'bs1111 %i
select -assert-count 1 w:integer_null_range_out a:bottom_bound=1'bs0 %i
select -assert-count 1 w:integer_null_range_out a:top_bound=1'bs1 %i
# natural: scalar type
select -assert-count 1 w:natural_in a:bottom_bound=31'b0000000000000000000000000000000 %i
@ -116,11 +116,11 @@ select -assert-count 1 w:positive_out a:bottom_bound=31'b00000000000000000000000
select -assert-count 1 w:positive_out a:top_bound=31'b1111111111111111111111111111111 %i
# integer size changed in VHDL 2019
design -reset
read -vhdl2019 bounds.vhd
hierarchy -top test
## integer size changed in VHDL 2019
# integer: scalar type
select -assert-count 1 w:integer_in a:bottom_bound=64'b1000000000000000000000000000000000000000000000000000000000000000 %i
select -assert-count 1 w:integer_in a:top_bound=64'b0111111111111111111111111111111111111111111111111111111111111111 %i
@ -139,9 +139,30 @@ select -assert-count 1 w:positive_in a:top_bound=63'b111111111111111111111111111
select -assert-count 1 w:positive_out a:bottom_bound=63'b000000000000000000000000000000000000000000000000000000000000001 %i
select -assert-count 1 w:positive_out a:top_bound=63'b111111111111111111111111111111111111111111111111111111111111111 %i
## ranged integer sizes should be unaffected
# integer with range: scalar type
select -assert-count 1 w:integer_with_range_in a:bottom_bound=5'bs11011 %i
select -assert-count 1 w:integer_with_range_in a:top_bound=5'bs01010 %i
select -assert-count 1 w:integer_with_range_out a:bottom_bound=5'bs11010 %i
select -assert-count 1 w:integer_with_range_out a:top_bound=5'bs01010 %i
# integer with single value range: scalar type
select -assert-count 1 w:integer_single_value_in a:bottom_bound=3'bs101 %i
select -assert-count 1 w:integer_single_value_in a:top_bound=3'bs101 %i
select -assert-count 1 w:integer_single_value_out a:bottom_bound=3'bs101 %i
select -assert-count 1 w:integer_single_value_out a:top_bound=3'bs101 %i
# integer with null range: scalar type
select -assert-count 1 w:integer_null_range_in a:bottom_bound=4'bs0111 %i
select -assert-count 1 w:integer_null_range_in a:top_bound=4'bs1111 %i
select -assert-count 1 w:integer_null_range_out a:bottom_bound=1'bs0 %i
select -assert-count 1 w:integer_null_range_out a:top_bound=1'bs1 %i
design -reset
read -sv bounds.sv
hierarchy -top test
## bounds should not be generated for SV
select -assert-count none a:bottom_bound
select -assert-count none a:top_bound