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2015 Nov 04
2
Vectorizing structure reads, writes, etc on X86-64 AVX
...hy at gmail.com> wrote: > Thanks, Hal. > > That code is very readable. Basically, the following has to be true > - not a memset or memzero [check] > - no implicit floats [check] > - size greater than 16 [check, it's 32] > - ! isUnalignedMem16Slow [check?] > - int256, fp256, or sse2, or sse1 is around [check] > > That last condition is: > - src & dst alignment is 0 or greater than 16 > > I think this is true, because I'm reading from a giant array of these > things, so the memory should be aligned to the object size. Assuming > that's...
2015 Nov 03
2
Vectorizing structure reads, writes, etc on X86-64 AVX
----- Original Message ----- > From: "Sanjay Patel via llvm-dev" <llvm-dev at lists.llvm.org> > To: "Jay McCarthy" <jay.mccarthy at gmail.com> > Cc: "llvm-dev" <llvm-dev at lists.llvm.org> > Sent: Tuesday, November 3, 2015 12:30:51 PM > Subject: Re: [llvm-dev] Vectorizing structure reads, writes, etc on X86-64 AVX > > If the