[LLVMdev] Clang/LLVM 3.3 unwanted attributes being added: NoFramePointerElim

Reed Kotler rkotler at mips.com
Wed Jul 24 23:38:25 PDT 2013


Maybe this would be interesting to you:

http://llvm.org/viewvc/llvm-project?view=revision&revision=187093

On 07/24/2013 11:16 PM, Dan wrote:
> Since updating to LLVM 3.3, the system is generating attributes such as:
>
> attributes #0 = { nounwind "less-precise-fpmad"="false"
> "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true"
> "no-infs-fp-math"="false" "no-nans-fp-math"="false"
> "unsafe-fp-math"="false" "use-soft-float"="false" }
>
>
> I've tried to add options.
>
> I've tracked the code to:
>
> NoFramePointerElim
>
> I've seen the description of:
>
> ./lib/Target/TargetMachine.cpp
>
>   RESET_OPTION(NoFramePointerElim, "no-frame-pointer-elim");
>    RESET_OPTION(NoFramePointerElimNonLeaf, "no-frame-pointer-elim-non-leaf");
>    RESET_OPTION(LessPreciseFPMADOption, "less-precise-fpmad");
>    RESET_OPTION(UnsafeFPMath, "unsafe-fp-math");
>    RESET_OPTION(NoInfsFPMath, "no-infs-fp-math");
>    RESET_OPTION(NoNaNsFPMath, "no-nans-fp-math");
>    RESET_OPTION(UseSoftFloat, "use-soft-float");
>    RESET_OPTION(DisableTailCalls, "disable-tail-calls");
>
> I cannot find the code or mechanism to turn off: NoFramePointerElim
>
> No code generator has these specialized, so this is happening for all targets.
>
> Any help?
>





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