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Summary: The motivation for this new function is to move an invalid assumption about the relationship between the names of register definitions in tablegen files and their assembly names into TargetRegisterInfo, so that we can begin working on fixing this assumption. The current problem is that if you have a register definition in TableGen like: def MYReg0 : Register<"r0", 0>; The function TargetLowering::getRegForInlineAsmConstraint() derives the assembly name from the tablegen name: "MyReg0" rather than the given assembly name "r0". This is working, because on most targets the tablegen name and the assembly names are case insensitive matches for each other (e.g. def EAX : X86Reg<"eax", ...> getRegAsmName() will allow targets to override this default assumption and return the correct assembly name. Reviewers: echristo, hfinkel Subscribers: SamWot, echristo, hfinkel, llvm-commits Differential Revision: http://reviews.llvm.org/D15614 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@265955 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| LLVMBuild.txt | ||
| 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.