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From: "lo50goa3 at duck dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/110488] New: Legal deferred constant rejected
Date: Thu, 29 Jun 2023 19:29:20 +0000
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X-Bugzilla-Component: ada
X-Bugzilla-Version: 13.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110488

            Bug ID: 110488
           Summary: Legal deferred constant rejected
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: lo50goa3 at duck dot com
                CC: dkm at gcc dot gnu.org
  Target Milestone: ---

Created attachment 55429
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D55429&action=3Dedit
Minimal reproducer

Xubuntu 23.04 X86_64

GNAT 13 installed with

apt install gnat-13

Compiling the attached with

gnatmake -gnatc b_strings_prob.ads

gives

b_strings_prob.ads:11:04: error: subtype does not statically match deferred
declaration at line 4
gnatmake: "b_strings_prob.ads" compilation error

According to Randy Brukardt, ARG member and ARM editor, this is legal Ada a=
nd
should be accepted.

Output of

x86_64-linux-gnu-gcc-13 -v

Using built-in specs.
COLLECT_GCC=3Dx86_64-linux-gnu-gcc-13
COLLECT_LTO_WRAPPER=3D/usr/libexec/gcc/x86_64-linux-gnu/13/lto-wrapper
OFFLOAD_TARGET_NAMES=3Dnvptx-none:amdgcn-amdhsa
OFFLOAD_TARGET_DEFAULT=3D1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion=3D'Ubuntu
13-20230320-1ubuntu1' --with-bugurl=3Dfile:///usr/share/doc/gcc-13/README.B=
ugs
--enable-languages=3Dc,ada,c++,go,d,fortran,objc,obj-c++,m2,rust --prefix=
=3D/usr
--with-gcc-major-version-only --program-suffix=3D-13
--program-prefix=3Dx86_64-linux-gnu- --enable-shared --enable-linker-build-=
id
--libexecdir=3D/usr/libexec --without-included-gettext --enable-threads=3Dp=
osix
--libdir=3D/usr/lib --enable-nls --enable-bootstrap --enable-clocale=3Dgnu
--enable-libstdcxx-debug --enable-libstdcxx-time=3Dyes
--with-default-libstdcxx-abi=3Dnew --enable-gnu-unique-object
--disable-vtable-verify --enable-plugin --enable-default-pie --with-system-=
zlib
--enable-libphobos-checking=3Drelease --with-target-system-zlib=3Dauto
--enable-objc-gc=3Dauto --enable-multiarch --disable-werror --enable-cet
--with-arch-32=3Di686 --with-abi=3Dm64 --with-multilib-list=3Dm32,m64,mx32
--enable-multilib --with-tune=3Dgeneric
--enable-offload-targets=3Dnvptx-none=3D/build/gcc-13-oz92yP/gcc-13-13-2023=
0320/debian/tmp-nvptx/usr,amdgcn-amdhsa=3D/build/gcc-13-oz92yP/gcc-13-13-20=
230320/debian/tmp-gcn/usr
--enable-offload-defaulted --without-cuda-driver --enable-checking=3Drelease
--build=3Dx86_64-linux-gnu --host=3Dx86_64-linux-gnu --target=3Dx86_64-linu=
x-gnu
--with-build-config=3Dbootstrap-lto-lean --enable-link-serialization=3D2
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.1 20230320 (experimental) [master r13-6759-g5194ad1958c]
(Ubuntu 13-20230320-1ubuntu1)=