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| author | John Högberg <[email protected]> | 2018-05-08 08:52:22 +0200 |
|---|---|---|
| committer | John Högberg <[email protected]> | 2018-09-28 11:31:57 +0200 |
| commit | fd6246c5191d07b80bc7100b470a37a338accecd (patch) | |
| tree | 9cd0a6750aa0fa680fc214b6650006f34d2e3818 /lib/compiler/src/beam_disasm.erl | |
| parent | b1726b022ad260497a1edc1cceb94935a06804e5 (diff) | |
| download | otp-fd6246c5191d07b80bc7100b470a37a338accecd.tar.gz otp-fd6246c5191d07b80bc7100b470a37a338accecd.tar.bz2 otp-fd6246c5191d07b80bc7100b470a37a338accecd.zip | |
Rewrite BSM optimizations in the new SSA-based intermediate format
This commit improves the bit-syntax match optimization pass,
leveraging the new SSA intermediate format to perform much more
aggressive optimizations. Some highlights:
* Watch contexts can be reused even after being passed to a
function or being used in a try block.
* Sub-binaries are no longer eagerly extracted, making it far
easier to keep "happy paths" free from binary creation.
* Trivial wrapper functions no longer disable context reuse.
Diffstat (limited to 'lib/compiler/src/beam_disasm.erl')
| -rw-r--r-- | lib/compiler/src/beam_disasm.erl | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_disasm.erl b/lib/compiler/src/beam_disasm.erl index d0be39f520..7d048716e4 100644 --- a/lib/compiler/src/beam_disasm.erl +++ b/lib/compiler/src/beam_disasm.erl @@ -1105,6 +1105,16 @@ resolve_inst({get_hd,[Src,Dst]},_,_,_) -> resolve_inst({get_tl,[Src,Dst]},_,_,_) -> {get_tl,Src,Dst}; +%% OTP 22 +resolve_inst({bs_start_match3,[Fail,Bin,Live,Dst]},_,_,_) -> + {bs_start_match3,Fail,Bin,Live,Dst}; +resolve_inst({bs_get_tail,[Src,Dst,Live]},_,_,_) -> + {bs_get_tail,Src,Dst,Live}; +resolve_inst({bs_get_position,[Src,Dst,Live]},_,_,_) -> + {bs_get_position,Src,Dst,Live}; +resolve_inst({bs_set_position,[Src,Dst]},_,_,_) -> + {bs_set_position,Src,Dst}; + %% %% OTP 22. %% |