forked from OSchip/llvm-project
0e894edee1
This is not a new semantic feature. The syntax `(? 1, 2, 3)` was disallowed by the parser in a dag //expression//, but there were already ways to sneak a `?` into the operator field of a dag //value//, e.g. by initializing it from a class template parameter which is then set to `?` by the instantiating `def`. This patch makes `?` in the operator slot syntactically legal, so it's now easy to construct dags with an unset operator. Also, the semantics of `!con` are relaxed so that it will allow a combination of set and unset operator fields in the dag nodes it's concatenating, with the restriction that all the operators that are //not// unset still have to agree with each other. Reviewers: hfinkel, nhaehnle Reviewed By: hfinkel, nhaehnle Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D71195 |
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| cmake | ||
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| include | ||
| lib | ||
| projects | ||
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| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .arcconfig | ||
| .clang-format | ||
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| .gitattributes | ||
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| CMakeLists.txt | ||
| CODE_OWNERS.TXT | ||
| CREDITS.TXT | ||
| LICENSE.TXT | ||
| LLVMBuild.txt | ||
| README.txt | ||
| RELEASE_TESTERS.TXT | ||
| configure | ||
| llvm.spec.in | ||
README.txt
The LLVM Compiler Infrastructure ================================ 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.