[LLVMdev] Haswell New Instructions

[David A. Greene]

Jose Fonseca <jfonseca at vmware.com> writes:

> The important thing IMO, is to not represent the gather operation as
> an instruction which takes a vector of pointers, because that's too
> restrictive for architectures with 64bits pointers.

How is it restrictive?

> What one most frequently wants to do in those architectures is to specify a
> 64bit scalar base pointer with a vector of 32bit offsets.

Or 64-bit offsets.  We should not restrict offsets to 32 bits.

                                 -Dave