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| author | Björn Gustavsson <[email protected]> | 2018-01-19 12:37:49 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2018-01-24 12:43:36 +0100 |
| commit | 4ad250c85a1abb80b6e0a30855c8982d174b369c (patch) | |
| tree | b927b57166df183c787bf3369c310a3b33094e04 /lib/compiler/test | |
| parent | 4571e13801c53e1c2bbf744ab178a4a0f9f0a7cd (diff) | |
| download | otp-4ad250c85a1abb80b6e0a30855c8982d174b369c.tar.gz otp-4ad250c85a1abb80b6e0a30855c8982d174b369c.tar.bz2 otp-4ad250c85a1abb80b6e0a30855c8982d174b369c.zip | |
Optimize matching of empty binaries
Extend an existing optimization in beam_dead to avoid
creating a match context when matching an empty binary.
Diffstat (limited to 'lib/compiler/test')
| -rw-r--r-- | lib/compiler/test/bs_match_SUITE.erl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/compiler/test/bs_match_SUITE.erl b/lib/compiler/test/bs_match_SUITE.erl index 4bd5e8e2e1..235956a714 100644 --- a/lib/compiler/test/bs_match_SUITE.erl +++ b/lib/compiler/test/bs_match_SUITE.erl @@ -678,6 +678,10 @@ coverage(Config) when is_list(Config) -> <<>> = coverage_per_key(<<4:32>>), <<$a,$b,$c>> = coverage_per_key(<<7:32,"abc">>), + binary = coverage_bitstring(<<>>), + binary = coverage_bitstring(<<7>>), + bitstring = coverage_bitstring(<<7:4>>), + other = coverage_bitstring([a]), ok. coverage_fold(Fun, Acc, <<H,T/binary>>) -> @@ -768,6 +772,10 @@ coverage_per_key(<<BinSize:32,Bin/binary>> = B) -> true = (byte_size(B) =:= BinSize), Bin. +coverage_bitstring(Bin) when is_binary(Bin) -> binary; +coverage_bitstring(<<_/bitstring>>) -> bitstring; +coverage_bitstring(_) -> other. + multiple_uses(Config) when is_list(Config) -> {344,62879,345,<<245,159,1,89>>} = multiple_uses_1(<<1,88,245,159,1,89>>), true = multiple_uses_2(<<0,0,197,18>>), |