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| author | Anthony Ramine <[email protected]> | 2013-03-24 14:40:24 +0100 |
|---|---|---|
| committer | Anthony Ramine <[email protected]> | 2013-03-28 09:18:01 +0100 |
| commit | 57d5d8450811eb7c79b1365ab13fec689f8decdd (patch) | |
| tree | f70ab870e453b8611f4f5ed5516a547a799f061e /lib/compiler/test/bs_bincomp_SUITE.erl | |
| parent | f285ee66678ae8761dc82b5ba0c023dd759091fc (diff) | |
| download | otp-57d5d8450811eb7c79b1365ab13fec689f8decdd.tar.gz otp-57d5d8450811eb7c79b1365ab13fec689f8decdd.tar.bz2 otp-57d5d8450811eb7c79b1365ab13fec689f8decdd.zip | |
Fix optimization of some binary comprehensions
If a variable bound in a generator is used as the size of a segment
in the comprehension body, v3_core uses this variable in the code
generated to compute the initial size given to the `bs_init_writable`
primop before the variable is actually bound, as in:
<< <<0:S>> || S <- Slist >>
Reported-By: Peer Stritzinger
Diffstat (limited to 'lib/compiler/test/bs_bincomp_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/bs_bincomp_SUITE.erl | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/compiler/test/bs_bincomp_SUITE.erl b/lib/compiler/test/bs_bincomp_SUITE.erl index d39e340429..451a9b1e3b 100644 --- a/lib/compiler/test/bs_bincomp_SUITE.erl +++ b/lib/compiler/test/bs_bincomp_SUITE.erl @@ -282,6 +282,9 @@ sizes(Config) when is_list(Config) -> ?line <<1,2,3,0>> = Fun13(7), ?line <<1,2,3,0,0>> = Fun13(8), + <<0:3>> = cs_default(<< <<0:S>> || S <- [0,1,2] >>), + <<0:3>> = cs_default(<< <<0:S>> || <<S>> <= <<0,1,2>> >>), + ?line {'EXIT',_} = (catch << <<C:4>> || <<C:8>> <= {1,2,3} >>), ?line cs_end(), |