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From: "noan at email dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/95651] New: GCC compilation error on AArch64: error:
 expected expression: AARCH64_INIT_MEMTAG_BUILTINS_DECL
Date: Fri, 12 Jun 2020 09:14:37 +0000
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X-Bugzilla-Version: 10.1.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95651

            Bug ID: 95651
           Summary: GCC compilation error on AArch64: error: expected
                    expression: AARCH64_INIT_MEMTAG_BUILTINS_DECL
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: noan at email dot com
  Target Milestone: ---

I have built GCC (10.1.0) many times from source on x86. I tried the same on
AArch64 and it failed with the following error:

../.././gcc/config/aarch64/aarch64-builtins.c:1225:3: error: expected
expression
  AARCH64_INIT_MEMTAG_BUILTINS_DECL (IRG, irg, irg, fntype);
...

I build on Ubuntu 20.04 with the stock GCC 9.3.0 compiler:

$ lsb_release -d
Description:    Ubuntu 20.04 LTS

$ gcc --version
gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0

$ uname -a
Linux pi64 5.4.0-1008-raspi #8-Ubuntu SMP Wed Apr 8 11:13:06 UTC 2020 aarch=
64
aarch64 aarch64 GNU/Linux

Build commands:

$ tar xzf gcc-10.1.0.tar.gz
$ cd gcc-10.1.0
$ contrib/download_prerequisites
$ ./configure --prefix=3D/usr/local/gcc-10.1.0 --enable-languages=3Dc,c++,f=
ortran
--disable-multilib
$ make -j 4=