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| author | Clifford Wolf <clifford@clifford.at> | 2018-12-05 09:02:13 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-05 09:02:13 -0800 |
| commit | 50a94ce4fc64ef4b95dba4119e82df01680b0617 (patch) | |
| tree | c5dff0100358efc89b90995603b9b4365777e4bb /tests/opt/opt_lut.v | |
| parent | 11323665aff4c4af612f12fb3dda5096ace26a7d (diff) | |
| parent | 45cb6200af13469724de42656f2c1f0f61c8766a (diff) | |
| download | yosys-50a94ce4fc64ef4b95dba4119e82df01680b0617.tar.gz yosys-50a94ce4fc64ef4b95dba4119e82df01680b0617.tar.bz2 yosys-50a94ce4fc64ef4b95dba4119e82df01680b0617.zip | |
Merge pull request #717 from whitequark/opt_lut
Add a new opt_lut pass, which combines inefficiently packed LUTs
Diffstat (limited to 'tests/opt/opt_lut.v')
| -rw-r--r-- | tests/opt/opt_lut.v | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/opt/opt_lut.v b/tests/opt/opt_lut.v new file mode 100644 index 000000000..b13db367d --- /dev/null +++ b/tests/opt/opt_lut.v @@ -0,0 +1,18 @@ +module top( + input [8:0] a, + input [8:0] b, + output [8:0] o1, + output [2:0] o2, + input [2:0] c, + input [2:0] d, + output [2:0] o3, + output [2:0] o4, + input s +); + +assign o1 = (s ? 0 : a + b); +assign o2 = (s ? a : a - b); +assign o3 = (s ? 4'b1111 : d + c); +assign o4 = (s ? d : c - d); + +endmodule |