[Bug bootstrap/79255] New: [7 Regression] PGO bootstrap fails on x86_64/ppc64le building Ada

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79255

            Bug ID: 79255
           Summary: [7 Regression] PGO bootstrap fails on x86_64/ppc64le
                    building Ada
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: build
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---
            Target: x86_64-*-*, powerpc64le-*-*

With r244934 and --disable-werror I see in stagefeedback

[ 7754s] +===========================GNAT BUG
DETECTED==============================+
[ 7754s] | 7 20170126 (experimental) [trunk revision 244934]
(x86_64-suse-linux) GCC error:|
[ 7754s] | in check_die, at dwarf2out.c:6162                                   
    |
[ 7754s] | Error detected around ../../gcc/ada/uintp.adb:1091:14               
    |
[ 7754s] | Please submit a bug report; see http://gcc.gnu.org/bugs.html.       
    |
[ 7754s] | Use a subject line meaningful to you and us to track the bug.       
    |
[ 7754s] | Include the entire contents of this bug box in the report.          
    |
[ 7754s] | Include the exact command that you entered.                         
    |
[ 7754s] | Also include sources listed below.                                  
    |
[ 7754s]
+==========================================================================+
[ 7754s] 
[ 7754s] Please include these source files with error report
[ 7754s] Note that list may not be accurate in some cases,
...

similar for ppc64le:

[11867s] +===========================GNAT BUG
DETECTED==============================+
[11867s] | 7 20170126 (experimental) [trunk revision 244934]
(powerpc64le-suse-linux) GCC error:|
[11867s] | in check_die, at dwarf2out.c:6162                                   
    |
[11867s] | Error detected around ../../gcc/ada/atree.adb:2595:8                
    |
[11867s] | Please submit a bug report; see http://gcc.gnu.org/bugs.html.       
    |
[11867s] | Use a subject line meaningful to you and us to track the bug.       
    |
[11867s] | Include the entire contents of this bug box in the report.          
    |
[11867s] | Include the exact command that you entered.                         
    |
[11867s] | Also include sources listed below.                                  
    |
[11867s]
+==========================================================================+
[11867s] 
[11867s] Please include these source files with error report
[11867s] Note that list may not be accurate in some cases,