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ToT build problem on Aarch64 after cfg.h change


Richard,

I am having a problem building GCC after this patch:

commit 2515797e5db67076d6cf7f3f185757c841f79edf
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri Aug 24 11:17:16 2018 +0000

    2018-08-24  Richard Biener  <rguenther@suse.de>
   
        * cfg.h (struct control_flow_graph): Add edge_flags_allocated and
        bb_flags_allocated members.
        (auto_flag): New RAII class for allocating flags.
        (auto_edge_flag): New RAII class for allocating edge flags.
        (auto_bb_flag): New RAII class for allocating bb flags.
        * cfgloop.c (verify_loop_structure): Allocate temporary edge
        flag dynamically.
        * cfganal.c (dfs_enumerate_from): Remove use of visited sbitmap
        in favor of temporarily allocated BB flag.
        * hsa-brig.c: Re-order includes.
        * hsa-dump.c: Likewise.
        * hsa-regalloc.c: Likewise.
        * print-rtl.c: Likewise.
        * profile-count.c: Likewise.

The failure is:

In file included from /home/sellcey/gcc-m/src/gcc/gcc/config/aarch64/aarch64-speculation.cc:28:0:
/home/sellcey/gcc-m/src/gcc/gcc/cfg.h: In constructor ‘auto_edge_flag::auto_edge_flag(function*)’:
/home/sellcey/gcc-m/src/gcc/gcc/cfg.h:172:22: error: invalid use of incomplete type ‘struct function’
     : auto_flag (&fun->cfg->edge_flags_allocated) {}

It looks like this may be Aarch64 specific build problem since it is 
compiling a platform specific file.  Is there just a missing include?

Steve Ellcey
sellcey@cavium.com


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