[Bug target/114358] New: [13 Regression] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[Bug target/114358] New: [13 Regression] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[doko at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

            Bug ID: 114358
           Summary: [13 Regression] ICE in change_address_1, at
                    emit-rtl.cc:2287 on m68k-linux-gnu
           Product: gcc
           Version: 13.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

[forwarded from https://bugs.debian.org/1066891]

seen with the gcc-13 branch building openssh, removing either the
-fzero-call-used-regs=used or -fPIE avoids the issue.

I can't reproduce this with the trunk.

$ cat moduli.i
int snprintf_eta;
double snprintf_time_per_line;
int snprintf(char *, int, char *, ...) {
  snprintf_eta = snprintf_time_per_line;
}

$ m68k-linux-gnu-gcc -c -O2 -fno-strict-aliasing -fzero-call-used-regs=used
-fPIE moduli.i 
during RTL pass: zero_call_used_regs
moduli.i: In function ‘snprintf’:
moduli.i:5:1: internal compiler error: in change_address_1, at emit-rtl.cc:2287
    5 | }
      | ^
0x7f8a86a666c9 __libc_start_call_main
        ../sysdeps/nptl/libc_start_call_main.h:58
0x7f8a86a66784 __libc_start_main_impl
        ../csu/libc-start.c:360
Please submit a full bug report, with preprocessed source (by using
-freport-bug).

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup. -fzero-call-used-regs=used was not used in older versions of openssh.

*** This bug has been marked as a duplicate of bug 110934 ***

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[tg at mirbsd dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

Thorsten Glaser <tg at mirbsd dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tg at mirbsd dot org

--- Comment #2 from Thorsten Glaser <tg at mirbsd dot org> ---
Sure? bug 110934 was about =all and using =used fixed the ICE back then. Now it
ICEs in both.

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Thorsten Glaser from comment #2)
> Sure? bug 110934 was about =all and using =used fixed the ICE back then. Now
> it ICEs in both.

Including on the trunk of GCC?

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Thorsten Glaser from comment #2)
> Sure? bug 110934 was about =all and using =used fixed the ICE back then. Now
> it ICEs in both.

Yes it is a dup because it is about the FP registers in the reduced testcase
there is a double type which is used and =used will ICE due to the FP register
being used and needing to be zero'ed.

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110934#c11 .

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[tg at mirbsd dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

--- Comment #6 from Thorsten Glaser <tg at mirbsd dot org> ---
Oh okay.

I have no easy way to check the trunk; gcc-snapshot_1:20240117-1 failed to
build (due to an ICE in libgo). In about two days, gcc-14_14-20240315-1 should
be built, which I can check then, if that helps (I’m not sure if the fix was
before gcc-14 was branched off).

[Bug target/114358] ICE in change_address_1, at emit-rtl.cc:2287 on m68k-linux-gnu

[sjames at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114358

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sjames at gcc dot gnu.org

--- Comment #7 from Sam James <sjames at gcc dot gnu.org> ---
(It's not branched yet.)