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-rw-r--r--tests/arch/ice40/ice40_opt.ys1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/arch/ice40/ice40_opt.ys b/tests/arch/ice40/ice40_opt.ys
index 58c33acaa..860e2e211 100644
--- a/tests/arch/ice40/ice40_opt.ys
+++ b/tests/arch/ice40/ice40_opt.ys
@@ -84,3 +84,4 @@ synth_ice40
select -assert-count 1 t:SB_LUT4
select -assert-count 1 t:SB_CARRY
select -assert-count 1 t:SB_CARRY a:keep %i
+select -assert-count 1 t:SB_CARRY c:carry %i