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| author | Björn Gustavsson <[email protected]> | 2015-02-08 10:48:18 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-03-09 09:59:37 +0100 |
| commit | d922184dcb5b159b0ff9052d99990dc23b36dc17 (patch) | |
| tree | c92270f49297b149c3338631197d2223da92eca1 | |
| parent | e72e049f25dc001111a6a98ea95a3e7bc3c53c1b (diff) | |
| download | otp-d922184dcb5b159b0ff9052d99990dc23b36dc17.tar.gz otp-d922184dcb5b159b0ff9052d99990dc23b36dc17.tar.bz2 otp-d922184dcb5b159b0ff9052d99990dc23b36dc17.zip | |
beam_dead: Optimize Var =:= Var
| -rw-r--r-- | lib/compiler/src/beam_dead.erl | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_dead.erl b/lib/compiler/src/beam_dead.erl index 7f28575a65..d00264eb6e 100644 --- a/lib/compiler/src/beam_dead.erl +++ b/lib/compiler/src/beam_dead.erl @@ -124,6 +124,8 @@ forward([{label,Lbl}=LblI|[{move,Lit,Dst}|Is1]=Is0], D, Lc, Acc) -> _ -> Is0 %Keep move instruction. end, forward(Is, D, Lc, [LblI|Acc]); +forward([{test,is_eq_exact,_,[Same,Same]}|Is], D, Lc, Acc) -> + forward(Is, D, Lc, Acc); forward([{test,is_eq_exact,_,[Dst,Src]}=I, {block,[{set,[Dst],[Src],move}|Bl]}|Is], D, Lc, Acc) -> forward([I,{block,Bl}|Is], D, Lc, Acc); |