forked from OSchip/llvm-project
0c7af8c83b
Previously the time complexity is O(|number of paths from the root to an implied feature| * CPU_FWATURE_MAX) where CPU_FEATURE_MAX is 92. The number of paths can be large (theoretically exponential). For an inline asm statement, there is a code path `clang::Parser::ParseAsmStatement -> clang::Sema::ActOnGCCAsmStmt -> ASTContext::getFunctionFeatureMap` leading to potentially many calls of getImpliedEnabledFeatures (41 for my -march=native case). We should improve the performance a bit in case the number of inline asm statements is large (Linux kernel builds). Reviewed By: craig.topper Differential Revision: https://reviews.llvm.org/D85257 |
||
|---|---|---|
| .. | ||
| benchmarks | ||
| bindings | ||
| cmake | ||
| docs | ||
| examples | ||
| include | ||
| lib | ||
| projects | ||
| resources | ||
| runtimes | ||
| test | ||
| tools | ||
| unittests | ||
| utils | ||
| .clang-format | ||
| .clang-tidy | ||
| .gitattributes | ||
| .gitignore | ||
| 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.