Files
clang-p2996/llvm/test/Analysis/CostModel
Craig Topper 35625464c6 [X86] Fix the cost model for v16i16->v16i32 zero_extend/sign_extend with AVX2
We seem to be inheriting the cost from sse4.1. But if we have 256-bit registers we should be able to do this with just one extract to split the 16i16 and two v8i16->v8i32 operations so our cost should be 3 not 4.

Differential Revision: https://reviews.llvm.org/D73646
2020-01-29 15:52:10 -08:00
..
2020-01-22 14:41:38 +00:00