[Bug tree-optimization/114287] New: [13.2.1 Regression] 416.gamess in SPEC CPU 2006 miscompiled

[Bug tree-optimization/114287] New: [13.2.1 Regression] 416.gamess in SPEC CPU 2006 miscompiled

[manolis.tsamis at vrull dot eu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114287

            Bug ID: 114287
           Summary: [13.2.1 Regression] 416.gamess in SPEC CPU 2006
                    miscompiled
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: manolis.tsamis at vrull dot eu
  Target Milestone: ---

On Linux/AArch64, 416.gamess from SPEC2006 is miscompiled:

****************************************
Contents of h2ocu2+.gradient.err
****************************************
Note: The following floating-point exceptions are signalling:
IEEE_UNDERFLOW_FLAG
STOP IN ABRT

****************************************

****************************************
Contents of triazolium.err
****************************************
STOP IN ABRT

****************************************

When compiled with:

  -g -O2 -flto=32 -fno-strict-aliasing

Compiles fine with GCC 13.2.1. 

GCC master built from commit d1b241b9506cdc0ebd3f43d12cf77d7c33271342,
configured with:

  --enable-shared, --enable-threads=posix, --enable-checking=release,
--enable-linker-build-id, --enable-plugin, --with-isl, --enable-lto

[Bug tree-optimization/114287] [13.2.1 Regression] 416.gamess in SPEC CPU 2006 miscompiled

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114287

Jeffrey A. Law <law at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
                 CC|                            |law at gcc dot gnu.org

[Bug tree-optimization/114287] [13.2.1 Regression] 416.gamess in SPEC CPU 2006 miscompiled

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114287

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

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

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You need -fno-aggressive-loop-optimizations see PR 69368 .

*** This bug has been marked as a duplicate of bug 69368 ***

[Bug tree-optimization/114287] [13.2.1 Regression] 416.gamess in SPEC CPU 2006 miscompiled

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114287

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Anyways the fortran code in SPEC is borken. See the long thread in PR 69368
about that.