[LLVMdev] pass case sensitive information to a llvm target backend

[Alexander Herz]

Hi,

we use the llvm to lower c++ code to c code which can be run through our 
abstract interpretation framework
(based on CIL). Along with the c code we emit some structured text files 
that contain the "lost" information
(class hierarchy, private/public attributes etc). In order to output 
this information in a sensible way we need to pass unix paths and some 
more case sensitive information (class names) to the backend (which is 
derived from the c backend).

Alex

On 10/18/2010 07:13 PM, Jim Grosbach wrote:
> On Oct 18, 2010, at 8:31 AM, Alexander Herz wrote:
>    
>> we're writing a new target backend (based on the c backend) for the
>> llvm. We need to pass case sensitive strings from the command line to
>> the backend (unix paths). Currently we're using the Subtarget features
>> string to relay the information.
>> It turns out that the llvm applies a to_lower to the this string, so
>> unix paths become basically useless.
>> Is there a better way to pass this information to the backend. If not,
>> what are the chances that a patch that disables the conversion to lower
>> case for this string is accepted?
>>      
> Hi Alex,
>
> Whether there's a better way to pass the information you want to the backend will likely depend a bit more on the specifics of what you're trying to do. Can you elaborate a bit with a simple example, perhaps?
>
> -Jim