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-rw-r--r--lib/compiler/src/beam_utils.erl18
1 files changed, 0 insertions, 18 deletions
diff --git a/lib/compiler/src/beam_utils.erl b/lib/compiler/src/beam_utils.erl
index 400979bc19..be6cc56eaa 100644
--- a/lib/compiler/src/beam_utils.erl
+++ b/lib/compiler/src/beam_utils.erl
@@ -427,12 +427,6 @@ check_liveness(R, [{gc_bif,Op,{f,Fail},Live,Ss,D}|Is], St0) ->
Other
end
end;
-check_liveness(R, [{bs_add,{f,0},Ss,D}|Is], St) ->
- case member(R, Ss) of
- true -> {used,St};
- false when R =:= D -> {killed,St};
- false -> check_liveness(R, Is, St)
- end;
check_liveness(R, [{bs_put,{f,0},_,Ss}|Is], St) ->
case member(R, Ss) of
true -> {used,St};
@@ -676,10 +670,6 @@ combine_alloc_lists_1([]) -> [].
live_opt([{bs_context_to_binary,Src}=I|Is], Regs0, D, Acc) ->
Regs = x_live([Src], Regs0),
live_opt(Is, Regs, D, [I|Acc]);
-live_opt([{bs_add,Fail,[Src1,Src2,_],Dst}=I|Is], Regs0, D, Acc) ->
- Regs1 = x_live([Src1,Src2], x_dead([Dst], Regs0)),
- Regs = live_join_label(Fail, D, Regs1),
- live_opt(Is, Regs, D, [I|Acc]);
live_opt([{bs_init2,Fail,Sz,Extra,Live0,Fl,Dst}|Is], Regs0, D, Acc) ->
Regs1 = x_dead([Dst], Regs0),
Live = live_regs(Regs1),
@@ -719,14 +709,6 @@ live_opt([{bs_restore2,Src,_}=I|Is], Regs0, D, Acc) ->
live_opt([{bs_save2,Src,_}=I|Is], Regs0, D, Acc) ->
Regs = x_live([Src], Regs0),
live_opt(Is, Regs, D, [I|Acc]);
-live_opt([{bs_utf8_size,Fail,Src,Dst}=I|Is], Regs0, D, Acc) ->
- Regs1 = x_live([Src], x_dead([Dst], Regs0)),
- Regs = live_join_label(Fail, D, Regs1),
- live_opt(Is, Regs, D, [I|Acc]);
-live_opt([{bs_utf16_size,Fail,Src,Dst}=I|Is], Regs0, D, Acc) ->
- Regs1 = x_live([Src], x_dead([Dst], Regs0)),
- Regs = live_join_label(Fail, D, Regs1),
- live_opt(Is, Regs, D, [I|Acc]);
live_opt([{test,bs_start_match2,Fail,Live,[Src,_],_}=I|Is], _, D, Acc) ->
Regs0 = live_call(Live),
Regs1 = x_live([Src], Regs0),