Ok, so I discussed that with Honza, the patch does not make sense any longer.
Reason is that histograms are used in RTL expansion in order to provide
hint for memcpy, memset-like operations.
Please ignore the patch.
Martin
Hi.
Attempt of the patch is to remove all histograms right after
"profile_estimate" pass. Then nobody should use them. That
will simplify code we'll not need verification and currently
we leaked some histograms till the end of compilation.
Patch can bootstrap on x86_64-linux-gnu and survives regr
