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share: Cleanup and additional testing

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Fixes a typo and adds another test case that triggers the fallback
behavior as the existing tests all trigger the new optimization.
This commit is contained in:
Jannis Harder 2025-04-15 12:04:09 +02:00
parent 7593b5b224
commit 4b273a4ae9
3 changed files with 36 additions and 9 deletions
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23
tests/sat/share.v
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@ -30,3 +30,26 @@ module test_2(
end
endmodule
module test_3(
input [3:0] s,
input [7:0] a, b, c,
output reg [7:0] y0,
output reg [7:0] y1,
output reg [7:0] y2,
output reg [7:0] y3,
);
wire is_onehot = s & (s - 1);
always @* begin
y0 <= 0;
y1 <= 0;
y2 <= 0;
y3 <= 0;
if (s < 3) y0 <= b / c;
if (3 <= s && s < 6) y1 <= c / b;
if (6 <= s && s < 9) y2 <= a / b;
if (9 <= s && s < 12) y3 <= b / a;
end
endmodule