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author | whitequark <whitequark@whitequark.org> | 2018-12-05 00:23:22 +0000 |
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committer | whitequark <whitequark@whitequark.org> | 2018-12-05 16:30:37 +0000 |
commit | 9e072ec21f9985126e1cfeb04fa7f2bc963790b3 (patch) | |
tree | 3c5ce9b8c789c460deea4759d69b065726714430 /tests/opt/opt_lut.v | |
parent | 1719aa88acf9f6d52caa81384bc50237605157e3 (diff) | |
download | yosys-9e072ec21f9985126e1cfeb04fa7f2bc963790b3.tar.gz yosys-9e072ec21f9985126e1cfeb04fa7f2bc963790b3.tar.bz2 yosys-9e072ec21f9985126e1cfeb04fa7f2bc963790b3.zip |
opt_lut: new pass, to combine LUTs for tighter packing.
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 |