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* lib/Target/Hexagon/HexagonInstrInfo.td: Add patterns to combine a sequence of a pair of i32->i64 extensions followed by a "bitwise or" into COMBINE_rr. * lib/Target/Hexagon/HexagonPeephole.cpp: Copy propagate Rx in the instruction Rp = COMBINE_Ir_V4(0, Rx) to the uses of Rp:subreg_loreg. * test/CodeGen/Hexagon/union-1.ll: New test. * test/CodeGen/Hexagon/combine_ir.ll: Fix test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180946 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, 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're writing a package for LLVM, see docs/Packaging.rst for our suggestions.