[cfe-dev] Struct initializer creating anon type

[Ghitulete Razvan]

Hi,

I have an llvm pass, that goes through all the GlobalVariable objects
inside a file and tries to match them to the corresponding type (at some
point). And I have noticed the following behavior. For

struct v {
   int x:9;
   ....
};
struct v var1 = {.x=0};
struct v var2;

The LLVM IR generated will declare variable var1 of an anonymous type
instead of type struct v, while var2 is okay.

%struct.v = type { [2 x i8], [6 x i8] }
@var1 = global { i8, i8, [6 x i8] } { i8 0, i8 0, [6 x i8] undef }, align 8
@var2 = common global %struct.v zeroinitializer, align 8

This actually happens always when the variable is statically initialized,
and the bitfield is longer than 8 bits.

Does anyone have any idea why this is occurring, or more exactly where the
code responsible for generating this part is?

-- 
Sincerely,
Razvan Ghitulete
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