forked from OSchip/llvm-project
a8697c57fa
When a D-Form instruction is fed by an add-immediate, we attempt to merge the two immediates to form a single displacement so we can remove the add-immediate. However, we don't check whether the new displacement fits into a 16-bit signed immediate field early enough. Namely, we do a sign-extend from 16 bits first which will discard high bits and then we check whether the result is a 16-bit signed immediate. It of course will always be. Move the check prior to the sign extend to ensure we are checking the correct value. Fixes https://bugs.llvm.org/show_bug.cgi?id=49640 |
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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.