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From: "simon at pushface dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ada/104354] New: ICE with Partition_Elaboration_Policy
 (Sequential)
Date: Wed, 02 Feb 2022 20:43:01 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104354

            Bug ID: 104354
           Summary: ICE with Partition_Elaboration_Policy (Sequential)
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: simon at pushface dot org
  Target Milestone: ---

Created attachment 52333
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D52333&action=3Dedit
Demonstrator (needs RTS)

The attached ravenscar-sfp-stm32f4.zip contains a version of the Alire
gnat_arm_elf_11.2.1_9343d45f runtime, edited to build with GCC
12.0.1.

The attached sem_ch8.zip contains demo.ad[bs] and enough RTS code from
Cortex GNAT RTS at https://github.com/simonjwright/cortex-gnat-rts to
allow compiling demo.adb, which uses Ada.Containers.Bounded_Vectors,
to demonstrate the problem.

The command

   $ gprbuild -c -u -f demo.adb --target=3Darm-eabi
--RTS=3D/Users/simon/tmp/ravenscar-sfp-stm32f4

(note, the --RTS=3D switch will have to be changed) results in

   +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3DGNAT BUG DETECTED=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
   | 12.0.1 20220128 (experimental) (arm-eabi) Program_Error sem_ch8.adb:57=
73
explicit raise|
   | Error detected at demo.adb:21:14                                      =
   |
   | Compiling /Users/simon/tmp/bugs/gcc12/sem_ch8/arm-eabi//demo.adb      =
   |
   | Please submit a bug report; see https://gcc.gnu.org/bugs/ .           =
   |
   | Use a subject line meaningful to you and us to track the bug.         =
   |
   | Include the entire contents of this bug box in the report.            =
   |
   | Include the exact command that you entered.                           =
   |
   | Also include sources listed below.                                    =
   |
   +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D+

This error does not occur if the line
   pragma Partition_Elaboration_Policy (Sequential);
is removed from demo.ads (the compilation fails because of other missing
components).=