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| author | Björn Gustavsson <[email protected]> | 2015-09-15 17:23:19 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-09-21 10:57:31 +0200 |
| commit | 9a1f7c4156093effddd555e88fd16a2ffd6ae75a (patch) | |
| tree | 2ba0dfb32f558b8e85f0d9da83ee0444cab0e136 /lib/compiler | |
| parent | 7721a7c919df3bfac6f8ced7471d3e5dfcf41bd4 (diff) | |
| download | otp-9a1f7c4156093effddd555e88fd16a2ffd6ae75a.tar.gz otp-9a1f7c4156093effddd555e88fd16a2ffd6ae75a.tar.bz2 otp-9a1f7c4156093effddd555e88fd16a2ffd6ae75a.zip | |
Regain full coverage of beam_block
d0784035ab fixed a problem with register corruption. Because of
that, opt_moves/2 will never be asked to optimize instructions with
more than two destination registers. Therefore, to regain full
coverage of beam_block, remove the final clause in opt_moves/2.
Diffstat (limited to 'lib/compiler')
| -rw-r--r-- | lib/compiler/src/beam_block.erl | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/lib/compiler/src/beam_block.erl b/lib/compiler/src/beam_block.erl index 75202d9379..ebf9b5fec5 100644 --- a/lib/compiler/src/beam_block.erl +++ b/lib/compiler/src/beam_block.erl @@ -283,11 +283,7 @@ opt_moves([X0,Y0], Is0) -> not_possible -> {[X,Y0],Is2}; {X,_} -> {[X,Y0],Is2}; {Y,Is} -> {[X,Y],Is} - end; -opt_moves(Ds, Is) -> - %% multiple destinations -> pass through - {Ds,Is}. - + end. %% opt_move(Dest, [Instruction]) -> {UpdatedDest,[Instruction]} | not_possible %% If there is a {move,Dest,FinalDest} instruction |