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2019 May 15
3
AARCH64 Code Size regression between 6/7
I am developing in C for an extremely memory constrained AARCH64 embedded environment. Sometime between llvm 6 and 7, I'm seeing a code size regression when I make multiple accesses into a global struct. Specifically, I have functions that perform several reads/writes into this global struct. In older versions (5/6) - a single ADRP/ADD combo is issued at the beginning of a function to get my