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Added tests/various/constmsk_test.ys

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Clifford Wolf 2014-09-04 15:07:30 +02:00
parent f5a40e7043
commit 01ef34c147
3 changed files with 68 additions and 0 deletions
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tests/various/constmsk_testmap.v Normal file
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(* techmap_celltype = "$reduce_or" *)
module my_opt_reduce_or(...);
parameter A_SIGNED = 0;
parameter A_WIDTH = 1;
parameter Y_WIDTH = 1;
input [A_WIDTH-1:0] A;
output reg [Y_WIDTH-1:0] Y;
parameter _TECHMAP_CONSTMSK_A_ = 0;
parameter _TECHMAP_CONSTVAL_A_ = 0;
wire _TECHMAP_FAIL_ = count_nonconst_bits() == A_WIDTH;
wire [1024:0] _TECHMAP_DO_ = "proc;;";
function integer count_nonconst_bits;
integer i;
begin
count_nonconst_bits = 0;
for (i = 0; i < A_WIDTH; i=i+1)
if (!_TECHMAP_CONSTMSK_A_[i])
count_nonconst_bits = count_nonconst_bits+1;
end
endfunction
function has_const_one;
integer i;
begin
has_const_one = 0;
for (i = 0; i < A_WIDTH; i=i+1)
if (_TECHMAP_CONSTMSK_A_[i] && _TECHMAP_CONSTVAL_A_[i] === 1'b1)
has_const_one = 1;
end
endfunction
integer i;
reg [count_nonconst_bits()-1:0] tmp;
always @* begin
if (has_const_one()) begin
Y = 1;
end else begin
for (i = 0; i < A_WIDTH; i=i+1)
if (!_TECHMAP_CONSTMSK_A_[i])
tmp = {A[i], tmp[count_nonconst_bits()-1:1]};
Y = |tmp;
end
end
endmodule