aboutsummaryrefslogtreecommitdiffstats
path: root/tests/opt/opt_lut.ys
diff options
context:
space:
mode:
authorClifford Wolf <clifford@clifford.at>2018-12-05 09:02:13 -0800
committerGitHub <noreply@github.com>2018-12-05 09:02:13 -0800
commit50a94ce4fc64ef4b95dba4119e82df01680b0617 (patch)
treec5dff0100358efc89b90995603b9b4365777e4bb /tests/opt/opt_lut.ys
parent11323665aff4c4af612f12fb3dda5096ace26a7d (diff)
parent45cb6200af13469724de42656f2c1f0f61c8766a (diff)
downloadyosys-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.ys')
-rw-r--r--tests/opt/opt_lut.ys15
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/opt/opt_lut.ys b/tests/opt/opt_lut.ys
new file mode 100644
index 000000000..86ad93bb3
--- /dev/null
+++ b/tests/opt/opt_lut.ys
@@ -0,0 +1,15 @@
+read_verilog opt_lut.v
+synth_ice40
+ice40_unlut
+design -save preopt
+
+opt_lut -dlogic SB_CARRY:I0=1:I1=2:CI=3
+design -stash postopt
+
+design -copy-from preopt -as preopt top
+design -copy-from postopt -as postopt top
+equiv_make preopt postopt equiv
+techmap -map ice40_carry.v
+prep -flatten -top equiv
+equiv_induct
+equiv_status -assert