[cfe-users] No macros in DI metadata

Bella V via cfe-users cfe-users at lists.llvm.org
Wed Jul 14 10:16:22 PDT 2021


Thanks a lot! It works.

Also there is no IR code generated for macros. Is there a way to relate
llvm::value's that refer to macros.

Many Thanks.

On Tue, Jul 13, 2021 at 7:06 PM David Blaikie <dblaikie at gmail.com> wrote:

> You could check where the macro is defined, I guess?
> If it's in a DIMacroFile i guess it's not a compiler builtin. It might
> still be from a system header, etc, if that matters to you - so then
> you'd have to filter by the DIMacroFile's 'file' attribute.
>
> On Tue, Jul 13, 2021 at 7:00 PM Bella V <bellavistaghome at gmail.com> wrote:
> >
> > Thanks David for the helpful information. Is there a way to filter the
> predefined macros such as __clang__, __GNUC__, etc.
> >
> > I could not get the macros defined in my C code with the below code:
> > DIMacroNodeArray Macros = DICompUnit->getMacros();
> > for (auto *MN : Macros) {
> >     if (auto *M = dyn_cast<DIMacro>(MN)) {
> >         outs()<< M->getName();
> >     }
> > }
> >
> >
> > On Tue, Jul 13, 2021 at 4:13 PM David Blaikie <dblaikie at gmail.com>
> wrote:
> >>
> >> Add -fdebug-macro
> >>
> >> On Tue, Jul 13, 2021 at 4:05 PM Bella V via cfe-users
> >> <cfe-users at lists.llvm.org> wrote:
> >> >
> >> > Hello All,
> >> >
> >> > I'm trying to build a list of macros in a compilation unit using
> CU->getMacros().
> >> > I do not see the macros field in DICompileUnit output.
> >> > https://godbolt.org/z/b8cM1Yf7v
> >> >
> >> > Please let me know what I'm missing.
> >> >
> >> > Many Thanks.
> >> >
> >> > _______________________________________________
> >> > cfe-users mailing list
> >> > cfe-users at lists.llvm.org
> >> > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
>
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