[LLVMdev] llvm/clang and 'odd bit types'
Jeroen.Dobbelaere at synopsys.com
Tue Sep 24 08:02:46 PDT 2013
I recently created a version of llvm/clang for an architecture with some odd properties:
- front end side:
-- char,short,int : 20 bits
-- long, long long: 40 bits
-- pointer: 20 bits
On the backend side, I have hardware support for 20-bit registers (and load/stores).
(So, I have support for 'i20' and 'i40', but 'i40' is lowered into operations on 'i20')
In order to achieve this, I did need to modify a number of generic llvm and clang files.
I was wondering if other people would be interested to see support for these kind of architectures in llvm
and if llvm/clang would accept such improvements.
In that case, I can make time to clean up these changes, make the current dependency on
'MVT::i20' and 'MVT::i40' more generic and provide them in easy-to-review chunks.
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