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author | Björn Gustavsson <[email protected]> | 2012-10-10 16:00:04 +0200 |
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committer | Björn Gustavsson <[email protected]> | 2012-10-10 16:00:04 +0200 |
commit | b16c127d4dc2bb070d6e98e5c4cdc38220708a13 (patch) | |
tree | 60e0fe128f9fe6d36354952d70f06463683a112d /lib/compiler/src/beam_trim.erl | |
parent | 55358002ddfa9f19e4142677d1ad4bd0a1760c0a (diff) | |
parent | e1aa422290b09a68bd761cbd0e70bd48442009b3 (diff) | |
download | otp-b16c127d4dc2bb070d6e98e5c4cdc38220708a13.tar.gz otp-b16c127d4dc2bb070d6e98e5c4cdc38220708a13.tar.bz2 otp-b16c127d4dc2bb070d6e98e5c4cdc38220708a13.zip |
Merge branch 'bjorn/compiler/minor-optimization-polishing/OTP-10193'
* bjorn/compiler/minor-optimization-polishing/OTP-10193: (25 commits)
beam_bsm: Handle calls slightly better
Break apart tail-recursive call instructions
Represent the 'send' instruction as a call_ext/2 instruction
Rewrite select_val and select_tuple_arity to a select instruction
Rewrite binary creation instructions to bs_init instructions
Rewrite bs_add, bs_utf*_size to BIF instructions in optimizations
Rewrite bs_put* instructions to a generic bs_put instruction
Refactor removal of unused labels
Introduce the mandatory beam_a and beam_z passes
compile: Fix bug in selection of passes
beam_receive: Optimize receives using refs created by spawn_monitor/{1,3}
compile: Give a friendler error message if a parse transform cannot be found
beam_jump: Don't move a block which can be entered via a fallthrough
beam_jump: Fix broken optimization
v3_kernel: Fix match code for matched out segment size in multiple clauses
Improve binary matching of literals
v3_codegen: Combine adjacent bs_match_string instructions
beam_bool: Recognize more safe optimizations
beam_utils: Correct usage calculations for GC BIFs in blocks
beam_utils:live_opt/1: Correct liveness calculation for 'try'
...
Diffstat (limited to 'lib/compiler/src/beam_trim.erl')
-rw-r--r-- | lib/compiler/src/beam_trim.erl | 68 |
1 files changed, 10 insertions, 58 deletions
diff --git a/lib/compiler/src/beam_trim.erl b/lib/compiler/src/beam_trim.erl index 5f4fa3b1f8..d95db1f681 100644 --- a/lib/compiler/src/beam_trim.erl +++ b/lib/compiler/src/beam_trim.erl @@ -172,38 +172,16 @@ remap([{bif,Name,Fail,Ss,D}|Is], Map, Acc) -> remap([{gc_bif,Name,Fail,Live,Ss,D}|Is], Map, Acc) -> I = {gc_bif,Name,Fail,Live,[Map(S) || S <- Ss],Map(D)}, remap(Is, Map, [I|Acc]); -remap([{bs_add,Fail,[SrcA,SrcB,U],D}|Is], Map, Acc) -> - I = {bs_add,Fail,[Map(SrcA),Map(SrcB),U],Map(D)}, +remap([{bs_init,Fail,Info,Live,Ss0,Dst0}|Is], Map, Acc) -> + Ss = [Map(Src) || Src <- Ss0], + Dst = Map(Dst0), + I = {bs_init,Fail,Info,Live,Ss,Dst}, remap(Is, Map, [I|Acc]); -remap([{bs_append=Op,Fail,Bits,Heap,Live,Unit,Bin,Flags,D}|Is], Map, Acc) -> - I = {Op,Fail,Map(Bits),Heap,Live,Unit,Map(Bin),Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([{bs_private_append=Op,Fail,Bits,Unit,Bin,Flags,D}|Is], Map, Acc) -> - I = {Op,Fail,Map(Bits),Unit,Map(Bin),Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([bs_init_writable=I|Is], Map, Acc) -> - remap(Is, Map, [I|Acc]); -remap([{bs_init2,Fail,Src,Live,U,Flags,D}|Is], Map, Acc) -> - I = {bs_init2,Fail,Map(Src),Live,U,Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([{bs_init_bits,Fail,Src,Live,U,Flags,D}|Is], Map, Acc) -> - I = {bs_init_bits,Fail,Map(Src),Live,U,Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([{bs_put_binary=Op,Fail,Src,U,Flags,D}|Is], Map, Acc) -> - I = {Op,Fail,Map(Src),U,Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([{bs_put_integer=Op,Fail,Src,U,Flags,D}|Is], Map, Acc) -> - I = {Op,Fail,Map(Src),U,Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([{bs_put_float=Op,Fail,Src,U,Flags,D}|Is], Map, Acc) -> - I = {Op,Fail,Map(Src),U,Flags,Map(D)}, - remap(Is, Map, [I|Acc]); -remap([{bs_put_string,_,_}=I|Is], Map, Acc) -> +remap([{bs_put=Op,Fail,Info,Ss}|Is], Map, Acc) -> + I = {Op,Fail,Info,[Map(S) || S <- Ss]}, remap(Is, Map, [I|Acc]); remap([{kill,Y}|T], Map, Acc) -> remap(T, Map, [{kill,Map(Y)}|Acc]); -remap([send=I|T], Map, Acc) -> - remap(T, Map, [I|Acc]); remap([{make_fun2,_,_,_,_}=I|T], Map, Acc) -> remap(T, Map, [I|Acc]); remap([{deallocate,N}|Is], Map, Acc) -> @@ -217,12 +195,6 @@ remap([{test,Name,Fail,Live,Ss,Dst}|Is], Map, Acc) -> remap(Is, Map, [I|Acc]); remap([return|_]=Is, _, Acc) -> reverse(Acc, Is); -remap([{call_last,Ar,Name,N}|Is], Map, Acc) -> - I = {call_last,Ar,Name,Map({frame_size,N})}, - reverse(Acc, [I|Is]); -remap([{call_ext_last,Ar,Name,N}|Is], Map, Acc) -> - I = {call_ext_last,Ar,Name,Map({frame_size,N})}, - reverse(Acc, [I|Is]); remap([{line,_}=I|Is], Map, Acc) -> remap(Is, Map, [I|Acc]). @@ -280,8 +252,8 @@ frame_size([{call_fun,_}|Is], Safe) -> frame_size(Is, Safe); frame_size([{call,_,_}|Is], Safe) -> frame_size(Is, Safe); -frame_size([{call_ext,A,{extfunc,M,F,A}}|Is], Safe) -> - case erl_bifs:is_exit_bif(M, F, A) of +frame_size([{call_ext,_,_}=I|Is], Safe) -> + case beam_jump:is_exit_instruction(I) of true -> throw(not_possible); false -> frame_size(Is, Safe) end; @@ -295,35 +267,15 @@ frame_size([{test,_,{f,L},_}|Is], Safe) -> frame_size_branch(L, Is, Safe); frame_size([{test,_,{f,L},_,_,_}|Is], Safe) -> frame_size_branch(L, Is, Safe); -frame_size([{bs_add,{f,L},_,_}|Is], Safe) -> +frame_size([{bs_init,{f,L},_,_,_,_}|Is], Safe) -> frame_size_branch(L, Is, Safe); -frame_size([{bs_append,{f,L},_,_,_,_,_,_,_}|Is], Safe) -> +frame_size([{bs_put,{f,L},_,_}|Is], Safe) -> frame_size_branch(L, Is, Safe); -frame_size([{bs_private_append,{f,L},_,_,_,_,_}|Is], Safe) -> - frame_size_branch(L, Is, Safe); -frame_size([bs_init_writable|Is], Safe) -> - frame_size(Is, Safe); -frame_size([{bs_init2,{f,L},_,_,_,_,_}|Is], Safe) -> - frame_size_branch(L, Is, Safe); -frame_size([{bs_init_bits,{f,L},_,_,_,_,_}|Is], Safe) -> - frame_size_branch(L, Is, Safe); -frame_size([{bs_put_binary,{f,L},_,_,_,_}|Is], Safe) -> - frame_size_branch(L, Is, Safe); -frame_size([{bs_put_integer,{f,L},_,_,_,_}|Is], Safe) -> - frame_size_branch(L, Is, Safe); -frame_size([{bs_put_float,{f,L},_,_,_,_}|Is], Safe) -> - frame_size_branch(L, Is, Safe); -frame_size([{bs_put_string,_,_}|Is], Safe) -> - frame_size(Is, Safe); frame_size([{kill,_}|Is], Safe) -> frame_size(Is, Safe); -frame_size([send|Is], Safe) -> - frame_size(Is, Safe); frame_size([{make_fun2,_,_,_,_}|Is], Safe) -> frame_size(Is, Safe); frame_size([{deallocate,N}|_], _) -> N; -frame_size([{call_last,_,_,N}|_], _) -> N; -frame_size([{call_ext_last,_,_,N}|_], _) -> N; frame_size([{line,_}|Is], Safe) -> frame_size(Is, Safe); frame_size([_|_], _) -> throw(not_possible). |