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| author | Björn Gustavsson <[email protected]> | 2019-03-11 13:15:02 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2019-03-20 16:19:30 +0100 |
| commit | 4e0430638635083c199f81375a6c14f2ffb726fb (patch) | |
| tree | feaa70c8e46e8a82469ff10a237c336b905d4437 /erts/configure.in | |
| parent | 0ffc8346553a5fc9322a75d4d8be5417dad67f29 (diff) | |
| download | otp-4e0430638635083c199f81375a6c14f2ffb726fb.tar.gz otp-4e0430638635083c199f81375a6c14f2ffb726fb.tar.bz2 otp-4e0430638635083c199f81375a6c14f2ffb726fb.zip | |
HiPE: Don't fail the compilation for unimplemented instructions
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index b070ad0649..5f969a0a8b 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -2783,6 +2783,32 @@ AC_SUBST(HIPE_ENABLED) NATIVE_LIBS_ENABLED= if test X${enable_native_libs} = Xyes -a X${HIPE_ENABLED} = Xyes; then NATIVE_LIBS_ENABLED=yes + cat >> $ERL_TOP/erts/CONF_INFO <<EOF + + WARNING: In OTP 22, HiPE (the native code compiler) is + not fully functional. The reasons for this are: + + 1. There are new BEAM instructions for binary + matching that the HiPE native code compiler does not + support. + + 2. The new optimizations in the Erlang compiler create + new combination of instructions that HiPE currently + does not handle correctly. + + If erlc is invoked like so: + + erlc +native some_file.erl + + or like so: + + erlc +native some_file.beam + + and if any of the new binary matching instructions + are used, the compiler will issue a warning and + produce a BEAM file without native code. + +EOF fi AC_SUBST(NATIVE_LIBS_ENABLED) |