forked from OSchip/llvm-project
95140023b5
This patch is the first of a sequence of three patches described by the LLVM-dev RFC "MC support for variant scheduling classes". http://lists.llvm.org/pipermail/llvm-dev/2018-May/123181.html The goal of this patch is to introduce a new class of scheduling predicates for SchedReadVariant and SchedWriteVariant. An MCSchedPredicate can be used instead of a normal SchedPredicate to model checks on the instruction (either a MachineInstr or a MCInst). Internally, an MCSchedPredicate encapsulates an MCInstPredicate definition. MCInstPredicate allows the definition of expressions with a well-known semantic, that can be used to generate code for both MachineInstr and MCInst. This is the first step toward teaching to tools like lllvm-mca how to resolve variant scheduling classes. Differential Revision: https://reviews.llvm.org/D46695 llvm-svn: 333282 |
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README.txt
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.