[llvm-dev] Is it possible to generate the IR representation with the original macro information?

[David Blaikie via llvm-dev]

Unfortunately, no

On Sat, Jan 19, 2019, 12:58 PM Peng Yu <pengyu.ut at gmail.com wrote:

> So there is no way to associate macro to IR code? Thanks.
>
> On Sat, Jan 19, 2019 at 2:23 PM David Blaikie <dblaikie at gmail.com> wrote:
> >
> > -g -fdebug-macro will include macro info in the debug info in the IR. It
> doesn't track which bits of IR were expanded from macros (anymore than the
> source locations do without -fdebug-macro) - just provides the macro text
> so, for instance, debugger users can use the macros in expresions.
> >
> > On Fri, Jan 18, 2019 at 2:43 PM Peng Yu via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
> >>
> >> Hi,
> >>
> >> I use the following commands to compile the IR. But I don't see the
> >> macro information in the .ll file. Is there a way to preserve the
> >> macro information (print() in this case) for debugging purposes?
> >>
> >> $ clang -std=gnu99 -g3 -flto -Wall -pedantic -c -o main.o main.c
> >> $ clang main.o -flto -fuse-ld=gold '-Wl,-plugin-opt=save-temps' -o
> main.exe
> >> $ llvm-dis main.exe.0.0.preopt.bc
> >>
> >> /* vim: set noexpandtab tabstop=2: */
> >> #include <stdio.h>
> >>
> >> #define print() puts("Hello World!");
> >>
> >> int main() {
> >>     print();
> >>     return 0;
> >> }
> >>
> >> --
> >> Regards,
> >> Peng
> >> _______________________________________________
> >> LLVM Developers mailing list
> >> llvm-dev at lists.llvm.org
> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
>
> --
> Regards,
> Peng
>
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