Messages in this thread | | | Date | Mon, 13 Apr 2015 11:31:50 -0700 | Subject | Re: [PATCH] x86: Align jump targets to 1 byte boundaries | From | Linus Torvalds <> |
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On Mon, Apr 13, 2015 at 10:26 AM, Markus Trippelsdorf <markus@trippelsdorf.de> wrote: > > I must have made a measurement mistake above, because the actual code > size savings are roughly 5%:
Can you check against the -fno-guess-branch-probability output?
Does lto (without pgo) perhaps end up undoing a lot of the random "branch out and back" noise?
Linus
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