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| author | Sverker Eriksson <[email protected]> | 2015-04-20 15:52:27 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2015-04-20 15:52:27 +0200 |
| commit | 91fb6636f95f882b75170fb77c412ccc4a9b75f4 (patch) | |
| tree | 17e33497bf2f9c72f2d096210fc61eb204a38f1d /erts/emulator/hipe/hipe_native_bif.h | |
| parent | 545890576542e4be630df8772654b99bd0306f62 (diff) | |
| download | otp-91fb6636f95f882b75170fb77c412ccc4a9b75f4.tar.gz otp-91fb6636f95f882b75170fb77c412ccc4a9b75f4.tar.bz2 otp-91fb6636f95f882b75170fb77c412ccc4a9b75f4.zip | |
erts,hipe: Fix bug in binary matching of writable binary
Seen symptom: Hipe compiled code with <<C/utf8, ...>> = Bin does sometimes
not match even though Bin contains a valid utf8 character. There might be
other possible binary matching symptoms, as the problem is not utf8
specific.
Problem: A writable binary was not "emasculated" when the matching started
(as it should) by the hipe compiled code.
Fix: Add a new primop emasculate_binary(Bin) that is called when
a matchstate is created.
ToDo: There are probably room for optimization. For example only call
emasculate_binary if ProcBin.flags is set.
Diffstat (limited to 'erts/emulator/hipe/hipe_native_bif.h')
| -rw-r--r-- | erts/emulator/hipe/hipe_native_bif.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/hipe/hipe_native_bif.h b/erts/emulator/hipe/hipe_native_bif.h index 3f460a5a5c..574e20e2e4 100644 --- a/erts/emulator/hipe/hipe_native_bif.h +++ b/erts/emulator/hipe/hipe_native_bif.h @@ -98,6 +98,9 @@ AEXTERN(void,nbif_emulate_fpe,(Process*)); void hipe_emulate_fpe(Process*); #endif +AEXTERN(void,nbif_emasculate_binary,(Eterm)); +void hipe_emasculate_binary(Eterm); + /* * Stuff that is different in SMP and non-SMP. */ |