[Bug ada/66162] New: Bug box compiling Ada.Finalization with -gnatc

[simon at pushface dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66162

            Bug ID: 66162
           Summary: Bug box compiling Ada.Finalization with -gnatc
           Product: gcc
           Version: 5.1.0
            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 35549
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35549&action=edit
Reproducer (to be gnatchopped)

I’ve built GCC 5.1.0 for arm-eabi (over x86_64-apple-darwin13), and while
adding finalization to my RTS I got the following bug box while compiling
a-finali.ads. This doesn’t happen when compiling fully (fails, of course):

$ gprbuild -c -u -f -P build_runtime.gpr a-finali.adb
build_runtime.gpr:1:09: warning: there are no Asm_Cpp sources in this project
arm-eabi-gcc -c -gnatpgn -gnatqQ -nostdinc -ffunction-sections -fdata-sections
-g -Og a-finali.ads
cannot generate code for file a-finali.ads (package spec)
gprbuild: *** compilation phase failed

FAILURE:

gprbuild -c -u -f -gnatc -p
-P/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/build_runtime.gpr
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/a-finali.ads
build_runtime.gpr:1:09: warning: there are no Asm_Cpp sources in this project
arm-eabi-gcc -c -gnatpgn -gnatqQ -nostdinc -ffunction-sections -fdata-sections
-g -Og -gnatc a-finali.ads
+===========================GNAT BUG DETECTED==============================+
| 5.1.0 (arm-eabi) Constraint_Error erroneous memory access                |
| Error detected at a-finali.ads:70:4                                      |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| 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.                                       |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/system.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/a-finali.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/ada.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/s-finroo.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/a-tags.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/s-stoele.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/interfac.ads
/Users/simon/stm32f4-gnat-rts/stm32f429i-disco-rtos/adainclude/a-stream.ads

compilation abandoned
gprbuild: *** compilation phase failed