[LLVMdev] llc c backend can produce code that doesn't compile on gcc 4.x

[Gordon Henriksen]

On 2007-01-16, at 02:47, Chris Lattner wrote:

> On Tue, 16 Jan 2007, Gordon Henriksen wrote:
>
>> The simplest solution is to avoid typedefs for array types. With  
>> names of array types removed from the symbol table, llc will  
>> simply output (for instance) 'l_structtype_s[3]' instead of the  
>> equivalent 'l_fixarray_array3'.
>
> Very nice catch and approach.

Thanks!

>> A more ambitious fix would be to merge the "typedef" and  
>> "structure contents" loops into a single, substantially more  
>> complex dependency-ordered traversal. This would preserve type  
>> names from the bytecode file—but to what end?
>
> Good question, I can't think of a reason!  I applied your patch but  
> generalized it slightly.  The CBE now strips off any non-struct  
> type names, to avoid issues with vectors (if the CBE starts  
> supporting them in the future).

Excellent. I was going to suggest just that generalization, but  
didn't feel comfortable enough with the Type hierarchy to be sure it  
was safe.

— Gordon

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