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2012 Sep 10
0
[LLVMdev] Unaligned vector memory access for ARM/NEON.
...st have comments to indicate where the endian assumptions are being made.
AFAICR, people used to use big-endian on non-NEON ARM cores in the
7TDMI/920 days, and if they still do so, they'll buy those chips.
IMO, throwing a few comments would be enough for now. It's better to
assume little enndian now, with a test case, than to assume big-endian
is possible, without one.
--
cheers,
--renato
http://systemcall.org/
2012 Sep 10
2
[LLVMdev] Unaligned vector memory access for ARM/NEON.
On Sep 7, 2012, at 4:46 PM, David Peixotto <dpeixott at codeaurora.org> wrote:
>> Note that this won't work on big-endian targets where changing the
>> vld1/vst1 element size actually changes the behavior of the instructions.
>
> Ok, so would it be best to put an explicit test for endianess in the code?
> The td files already contain restrictions some for endianess