1d3f9f8862
EVTs potentially contain a Type * that points into memory owned by an LLVMContext. Storing them in a function scoped static means they may outlive the LLVMContext they point to. This std::set is used to unique single element VT lists containing a single extended EVT. Single element VT list with a simple EVT are uniqued by a separate cache indexed by the MVT::SimpleValueType enum. VT lists with more than one element are uniqued by a FoldingSet owned by the SelectionDAG object. This patch moves the single element cache into SelectionDAG so that it will be destroyed when SelectionDAG is destroyed. Fixes #88233
The LLVM Compiler Infrastructure
Welcome to the LLVM project!
This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.
C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.
Other components include: the libc++ C++ standard library, the LLD linker, and more.
Getting the Source Code and Building LLVM
Consult the Getting Started with LLVM page for information on building and running LLVM.
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