diff options
| -rw-r--r-- | lib/compiler/src/beam_block.erl | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/compiler/src/beam_block.erl b/lib/compiler/src/beam_block.erl index 7f6d3a75ae..18f325f172 100644 --- a/lib/compiler/src/beam_block.erl +++ b/lib/compiler/src/beam_block.erl @@ -231,7 +231,7 @@ alloc_may_pass({set,_,_,_}) -> true. %% Optimize the instruction stream inside a basic block. opt([{set,[X],[X],move}|Is]) -> opt(Is); -opt([{set,[X],_,move},{set,[X],_,move}=I|Is]) -> +opt([{set,[Dst],_,move},{set,[Dst],[Src],move}=I|Is]) when Dst =/= Src -> opt([I|Is]); opt([{set,[{x,0}],[S1],move}=I1,{set,[D2],[{x,0}],move}|Is]) -> opt([I1,{set,[D2],[S1],move}|Is]); |