55923bf5df
`getStringRefAtRegion()` read literal contents via `StringLiteral::getBytes()`, which returns the literal's raw trailing storage. For wide literals (`u""`, `U""`, `L""`) that storage holds the code units in *host* byte order: `LiteralSupport` writes them through `reinterpret_cast<UTF16*>/<UTF32*>`, and `StringLiteral::getCodeUnit()` reads them back the same way. Interpreting those bytes as a target byte string made the strchr-family constant folding depend on the endianness of the machine running the analyzer. Bail out on `getCharByteWidth() != 1`, matching the contract the rest of the checker already relies on -- `evalStrcmpCommon()` uses `getString()`, which asserts it. Wide literals now fall back to the symbolic-offset path and keep both branches. Fixes up #212124 Inspired from: https://github.com/llvm/llvm-project/pull/212124#issuecomment-5143598098 Supersedes #213279 |
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| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| runtime | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| www | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitignore | ||
| AreaTeamMembers.txt | ||
| CMakeLists.txt | ||
| INSTALL.txt | ||
| LICENSE.TXT | ||
| Maintainers.md | ||
| NOTES.txt | ||
| README.md | ||
C language Family Front-end
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.
Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.
If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers:
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Information on Clang: http://clang.llvm.org/
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Building and using Clang: http://clang.llvm.org/get_started.html
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Clang Static Analyzer: http://clang-analyzer.llvm.org/
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Information on the LLVM project: http://llvm.org/
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If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
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If you find a bug in Clang, please file it in the LLVM bug tracker: