forked from OSchip/llvm-project
ba9f245b0d
We currently seem to underestimate the size of functions with loops in them, both in terms of absolute code size and in the difficulties of dealing with such code. (Calls, for example, can be tail merged to further reduce codesize). At -Oz, we can then increase code size by inlining small loops multiple times. This attempts to penalise functions with loops at -Oz by adding a CallPenalty for each top level loop in the function. It uses LI (and hence DT) to calculate the number of loops. As we are dealing with minsize, the inline threshold is small and functions at this point should be relatively small, making the construction of these cheap. Differential Revision: https://reviews.llvm.org/D52716 llvm-svn: 346134 |
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README.txt | ||
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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.