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

David Blaikie via llvm-dev llvm-dev at lists.llvm.org
Sat Jan 19 13:04:41 PST 2019

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

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