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sr #111036: llvm internal options are ignored by libtool.

Submitter:  Umesh <ukalappa>
Submitted:  Thu 21 Mar 2024 07:37:15 AM UTC
Category:  None Priority:  5 - Normal
Severity:  3 - Normal Status:  Duplicate
Privacy:  Public Assigned to:  None
Operating System:  None Open/Closed:  Closed
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Thu 21 Mar 2024 07:37:15 AM UTC, original submission:  

Hi ,

we tried to compile the audio decoder lib with clang like with overriding the CFLAGS with llvm internal option like

export CFLAGS="-O3 clang -mllvm -inline-threshold=1000  -mllvm -enable-loop-distribute   test.c " ,
here libtool sorts the options before giving to driver and options ends up option like "-O3 -mllvm -mllvm  -enable-loop-distribute -inline-threshold=1000  "

libtool commandline looks like ./libtool --mode=compile clang -O3 -mllvm -mllvm  -enable-loop-distribute -inline-threshold=1000  -MT stream.lo -MD -MP -MF ".deps/stream.Tpo" -c -o stream.lo stream.c; \
then mv -f ".deps/stream.Tpo" ".deps/stream.Plo"; else rm -f ".deps/stream.Tpo"; exit 1; fi

hence the clang driver errors out like

clang: error: unknown argument '-inline-recursion=2'; did you mean '-finline-recursion=2'?

which is expected ,since the clang driver expect all internal options prepend with "-mllvm".

Please let us know ,if required more info on this ,

thank you

Umesh <ukalappa>


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  • -email is unavailable- added by ineiev (Updated the item)
  • -email is unavailable- added by ukalappa (Submitted the item)

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    Date Changed by Updated Field Previous Value => Replaced by
    2024-04-16 ineiev StatusNone Duplicate
        Open/ClosedOpen Closed

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