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-rw-r--r--lib/compiler/src/beam_utils.erl3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index ff587c4982..3bb671f034 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -355,6 +355,9 @@ split_even(Rs) -> split_even(Rs, [], []).
%% exit BIF will raise an exception
%% used - Reg is used
+check_liveness({fr,_}, _, St) ->
+ %% Conservatively always consider the floating point register used.
+ {used,St};
check_liveness(R, [{block,Blk}|Is], St0) ->
case check_liveness_block(R, Blk, St0) of
{transparent,St1} ->