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| author | Bogdan Vukobratovic <bogdan.vukobratovic@gmail.com> | 2019-07-26 11:36:48 +0200 |
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| committer | Bogdan Vukobratovic <bogdan.vukobratovic@gmail.com> | 2019-07-26 11:36:48 +0200 |
| commit | 07c4a7d4388cdacaa15512dd2f6f0f9e9fcb31f5 (patch) | |
| tree | 1bee2945a214e126b3356168c9763aa16d336a98 /tests/opt/opt_share_mux_tree.ys | |
| parent | a02d1720a766ae1b993a9884e840f37b3d785b8f (diff) | |
| download | yosys-07c4a7d4388cdacaa15512dd2f6f0f9e9fcb31f5.tar.gz yosys-07c4a7d4388cdacaa15512dd2f6f0f9e9fcb31f5.tar.bz2 yosys-07c4a7d4388cdacaa15512dd2f6f0f9e9fcb31f5.zip | |
Implement opt_share
This pass identifies arithmetic operators that share an operand and whose
results are used in mutually exclusive cases controlled by a multiplexer, and
merges them together by multiplexing the other operands
Diffstat (limited to 'tests/opt/opt_share_mux_tree.ys')
| -rw-r--r-- | tests/opt/opt_share_mux_tree.ys | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/opt/opt_share_mux_tree.ys b/tests/opt/opt_share_mux_tree.ys new file mode 100644 index 000000000..94d6aa7d2 --- /dev/null +++ b/tests/opt/opt_share_mux_tree.ys @@ -0,0 +1,10 @@ +read_verilog opt_share_mux_tree.v +prep -flatten +opt +pmuxtree +opt_share; +opt_share; +opt_clean + +select -assert-count 1 t:$add +select -assert-count 0 t:$sub |