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We do not gain any additional security from having PIE on the test binaries, and this does have an impact on test times. It is about 10% from my measurements. Not as much as previous reports (https://reviews.llvm.org/D140880), but still significant. This is a similar gain to finish enabling the lit internal shell, which will take significantly more effort. I also do not think this is a meaningful enough difference from the "default" configuration to keep it the default, especially given the option is mostly set by distros.
The LLVM Compiler Infrastructure
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This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.
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