mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-03-22 10:36:10 +00:00
04cb800c32
The problem is that Function::renameLocalSymbols is iterating through the symbol table planes, occasionally calling setName to rename a value (which used to do a symbol table remove/insert pair). The problem is that if there is only a single value in a particular type plane that the remove will nuke the symbol table plane, and the insert will create and insert a new one. This hoses Function::renameLocalSymbols because it has an iterator to the old plane, under the (very reasonable) assumption that simply renaming a value won't cause the type plane to disappear. This patch fixes the bug by making the rename operation a single atomic operation, which has a side effect of making the whole thing faster too. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20469 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, 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 HTML documentation provided in docs/index.html for further assistance with LLVM.