search for: split_high

...crete number of i32 values. That's a problem. If <vscale x 1 x i32> ends up having one element, and <vscale x 2 x i32> also has one (= 2 * 0.5) element, then that's wrong: the latter type must have twice as many elements as the former (one example where this matters: split_low / split_high / concat shuffle patterns). The second option, a vector with *zero* elements, is just as wrong if not worse. It's not that a correct legalization exists but it's too annoying to implement, or that one might exist but I'm too lazy to work it out. We're also not running in a limitati...

...x i32> shuffles): splat - Splat element 0 of the first operand. (<0, 0, 0, 0>) reverse - Reverse the elements of the first operand (<3, 2, 1, 0>) concat - Concatenate the two operands (<0, 1, 2, 3, 4, 5, 6, 7>) split_low - Return the low half of the first operand (<0, 1>) split_high - Return the high half of the first operand (<2, 3>) zip_low - Zip together the low halves of the two operands (<0, 4, 1, 5>) zip_high - Zip together the high halves of the two operands (<2, 6, 3, 7>) unzip_even - Unzip the even elements of the two operands (<0, 2, 4, 6>) un...

Hi all, On Tue, 7 Apr 2020 at 11:04, Renato Golin via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > On Tue, 7 Apr 2020 at 09:30, Kai Wang via llvm-dev > <llvm-dev at lists.llvm.org> wrote: > > LMUL = 1 LMUL = 2 LMUL = 4 LMUL = 8 > > int64_t | vscale x 1 x i64 | vscale x 2 x i64 | vscale x 4 x i64 | vscale x 8 x i64