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Date: Wed, 5 Aug 2020 16:27:17 +0200 (CEST)
From: Gerald Pfeifer <gerald@pfeifer.com>
To: Aldy Hernandez <aldyh@redhat.com>
cc: Jeff Law <law@redhat.com>, gcc-patches@gcc.gnu.org
Subject: Re: [patch] multi-range implementation for value_range (irange)
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Message-ID: <alpine.LSU.2.22.394.2008051621120.4637@anthias.pfeifer.com>
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Hi Aldy,

On Fri, 31 Jul 2020, Aldy Hernandez via Gcc-patches wrote:
> Jeff approved this patch off-list.  I will re-run tests once again and 
> commit by Monday.

I believe this has broken the bootstrap with clang (specifically
FreeBSD clang version 10.0.0):

In file included from /scratch/tmp/gerald/GCC-HEAD/gcc/c/gimple-parser.c:44:
In file included from /scratch/tmp/gerald/GCC-HEAD/gcc/tree-vrp.h:23:
/scratch/tmp/gerald/GCC-HEAD/gcc/value-range.h:347:1: error: static declaration of 'gt_ggc_mx' follows non-static declaration gt_ggc_mx (int_range<N> *x)
/scratch/tmp/gerald/GCC-HEAD/gcc/value-range.h:150:37: note: previous declaration is here
  template <unsigned X> friend void gt_ggc_mx (int_range<X> *);
                                    ^

/scratch/tmp/gerald/GCC-HEAD/gcc/value-range.h:358:1: error: static declaration of 'gt_pch_nx' follows non-static declaration gt_pch_nx (int_range<N> *x)
/scratch/tmp/gerald/GCC-HEAD/gcc/value-range.h:151:37: note: previous declaration is here
  template <unsigned X> friend void gt_pch_nx (int_range<X> *);
                                    ^

My daily tester started to 20200803T1640, so the root cause of this must 
have entered GCC trunk between Sunday 16:40 UTC and Monday 16:40 UTC.

Gerald