mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2025-02-01 05:01:59 +01:00
cb18b19c74
This patch expands the support of lowerInterleavedStore to 16x8i stride 4. LLVM creates suboptimal shuffle code-gen for AVX2. In overall, this patch is a specific fix for the pattern (Strid=4 VF=16) and we plan to include more patterns in the future. The patch goal is to optimize the following sequence: At the end of the computation, we have ymm2, ymm0, ymm12 and ymm3 holding each 16 chars: c0, c1, , c16 m0, m1, , m16 y0, y1, , y16 k0, k1, ., k16 And these need to be transposed/interleaved and stored like so: c0 m0 y0 k0 c1 m1 y1 k1 c2 m2 y2 k2 c3 m3 y3 k3 .... Differential Revision: https://reviews.llvm.org/D35829 llvm-svn: 310252
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.