[LLVMdev] clang produces invalid debug info? (warning: invalid debug metadata version)

Yuri yuri at rawbw.com
Fri Jan 24 11:25:55 PST 2014

I run this simple command:
(echo "void f() {}" > m.c) && clang -g -c -emit-llvm m.c -o m.bc && 
llvm-dis m.bc
and it produces a warning:
warning: invalid debug metadata version (0) in m.bc
and resulting m.ll has no debug info.

 From the source code I can see that clang might have not placed the 
proper version constant DEBUG_METADATA_VERSION into one of the debug 
record objects.

Do you care to fix this warning? Or maybe there is a bug in my testcase?



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