Separate shrink-wrapping

Sep 9, 2017



The -fshrink-wrap-separate sub-pass (new in GCC 7) places pieces of the prologue and epilogue in places where they will be executed less frequently. This talk will describe why this is useful, how this works, and what changes a target needs to make to hook this up. If there is time I'll also discuss some future work in this area.


About GNU

The GNU Compiler Collection includes front ends for C, C++, Objective-C, Fortran, Ada, and Go, as well as libraries for these languages (libstdc++,...). GCC was originally written as the compiler for the GNU operating system. The GNU system was developed to be 100% free software, free in the sense that it respects the user's freedom.

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