[Bug rtl-optimization/64921] [4.9/5 Regression] FAIL: gfortran.dg/class_allocate_18.f90

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64921

--- Comment #7 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Paul Thomas from comment #6)
> (In reply to H.J. Lu from comment #2)
> > I got
> > 
> > Program received signal SIGSEGV: Segmentation fault - invalid memory
> > reference.
> > 
> > Backtrace for this error:
> > #0  0xF763FACE
> > #1  0xF763EBDE
> > #2  0xF773CBBF
> > #3  0x8048BA5 in __final_main_T2.3337 at class_allocate_18.f90:?
> > #4  0x8048D68 in __final_main_T3.3328 at class_allocate_18.f90:?
> > #5  0x8048A59 in MAIN__ at class_allocate_18.f90:?
> > FAIL: gfortran.dg/class_allocate_18.f90   -O1  execution test
> > 
> > But I couldn't reproduce it on another machine. I will keep an eye on it.
> 
> Hi HJ,
> 
> Given that the error is sporadic, are you sure that the offending revisions
> are not 220125 and 220130 - PR64230. The error messages that you are getting
> are remarkably similar to the original report for this PR.
> 

I don't know for sure.  This failure seems more consistent on 4.9 branch
than on trunk.