[pull] master from openssl:master #663
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One of the ways we can optimize our builds is with profile guided optimization. This entails doing several things: 1) Building with --coverage 2) Running an application against the openssl library from step (1) to generate profile data 3) rebuilding openssl using the input profile from step (2) to optimize the build. This new build configuration will let developers use the profiled data to see what type of optimizations might be possible, as well as giving end users the ability to squeeze a bit more performance out of openssl Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <ppzgs1@gmail.com> (Merged from #27839)
Coveralls is capable of reporting not only covered lines in a build, but also the number of times a given branch was taken vs. not taken. This will help us identify locations where we might make better use of the openssl_likely and openssl_unlikely macros to optimize branch prediction when building openssl Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <ppzgs1@gmail.com> (Merged from #27839)
Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <ppzgs1@gmail.com> (Merged from #27839)
Add a target to allow developers to generate coverage reports for a build like coveralls does. This will let us identify rarely used branches when doing development, so that we can optimize them. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Paul Dale <ppzgs1@gmail.com> (Merged from #27839)
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