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fff628274d
Similar to D57867 - this is a small patch with lots of test diffs. With half-vector-width narrowing potential, using an extract + 128-bit vshufps is a win because it replaces a 256-bit shuffle with a 128-bit shufle. This seems like it should be a win even for targets with 'fast-variable-shuffle', but we are intentionally deferring that to an independent change to make sure that is true. Differential Revision: https://reviews.llvm.org/D58181 llvm-svn: 354279
The LLVM Compiler Infrastructure
This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.