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When new virtual registers are created during splitting/spilling, defer creation of the live interval until we need to use the live interval. Along with the recent commits to notify LiveRangeEdit when new virtual registers are created, this makes it possible for functions like TargetInstrInfo::loadRegFromStackSlot() and TargetInstrInfo::storeRegToStackSlot() to create multiple virtual registers as part of the process of generating loads/stores for different register classes, and then have the live intervals for those new registers computed when they are needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188437 91177308-0d34-0410-b5e6-96231b3b80d8 |
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configure | ||
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README.txt |
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.