diff options
Diffstat (limited to 'lib/compiler/src/beam_a.erl')
| -rw-r--r-- | lib/compiler/src/beam_a.erl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_a.erl b/lib/compiler/src/beam_a.erl index 266e8f46c8..0abc845310 100644 --- a/lib/compiler/src/beam_a.erl +++ b/lib/compiler/src/beam_a.erl @@ -52,6 +52,13 @@ function({function,Name,Arity,CLabel,Is0}) -> erlang:raise(Class, Error, Stack) end. +rename_instrs([{test,is_eq_exact,_,[Dst,Src]}=Test, + {move,Src,Dst}|Is]) -> + %% The move instruction is not needed. + rename_instrs([Test|Is]); +rename_instrs([{test,is_eq_exact,_,[Same,Same]}|Is]) -> + %% Same literal or same register. Will always succeed. + rename_instrs(Is); rename_instrs([{apply_last,A,N}|Is]) -> [{apply,A},{deallocate,N},return|rename_instrs(Is)]; rename_instrs([{call_last,A,F,N}|Is]) -> |