[LLVMdev] [patch] emit .weak for zero initialized weak variables

Rafael EspĂ­ndola rafael.espindola at gmail.com
Mon Dec 18 13:14:12 PST 2006

> I'm not sure this is right.  C code like this:
> int X;
> should compile to a .comm directive, not a .weak directive, right?


According to GCC, "int  x" should compile to ".comm   x", but "int x
__attribute__((weak))" should compile to
.weak   x
        .zero   4

It looks like we have a bug in llvm-gcc, both C codes compile to
%x = weak global int 0

> -Chris

Best Regards,

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