[LLVMdev] [llvm-commits] [cfe-commits] [PATCH] [llvm+clang] memset for non-8-bit bytes

Owen Anderson resistor at mac.com
Fri Oct 19 12:45:21 PDT 2012

On Oct 19, 2012, at 11:43 AM, Patrik Hägglund H <patrik.h.hagglund at ericsson.com> wrote:

>> I'm a bit confused by this concept. 
> For the term byte, I use the "archaic" definition in the C (and C++) standard (section 3.6):
>  addressable unit of data storage large enough to hold any member of the basic character
>  set of the execution environment

That definition isn't really relevant to LLVM, though.  You can define char to be (say) 16 bits, and your frontend (clang?) just needs to set CHAR_BIT properly, and generate code with i16 whenever you wrote char.

I suspect what you want to talk about, and the part that is relevant to LLVM as opposed to clang, is supporting architectures where the minimum addressable unit is not 8 bits in size.


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