mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-02-20 14:29:27 +00:00
e9915738be
FoldConstantArithmetic() only knows how to deal with a few target independent ISD opcodes. Bail early if it sees a target-specific ISD node. These node do funny things with operand types which may break the assumptions of the code that follows, and there's no actual folding that can be done anyway. For example, non-constant 256 bit vector shifts on X86 have a shift-amount operand that's a 128-bit v4i32 vector regardless of what the first operand type is and that breaks the assumption that the operand types must match. rdar://16530923 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205937 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.