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Subject: [Bug rtl-optimization/48133] [4.6/4.7/4.8 Regression] ICE: in get_loop_body, at cfgloop.c:831 with -O -funroll-loops -fthread-jumps -fno-tree-ch
Date: Fri, 10 Aug 2012 06:18:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48133

--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-10 06:17:44 UTC ---
(In reply to comment #13)
 seems to work for me now
> jh@gcc10:~/trunk/build/gcc$ ./gfortran -O2 -c t.f90 -B ./
> jh@gcc10:~/trunk/build/gcc$ cat t.f90
> SUBROUTINE goo()
> IMPLICIT NONE
> CHARACTER(len=9),SAVE :: s
> INTEGER,SAVE :: i,j,k
> i=0
> j=0
> DO WHILE (i==0)
>    CALL goo1(s)
>    IF (INDEX(s,'$')/=1 .AND. INDEX(s,'!')/=1) THEN
>       CALL goo2(k)
>       IF (k>0) THEN
>          i=1
>       END IF
>    END IF
> END DO
> END SUBROUTINE
> ! gfortran -O2 -c goo.f90
> 
> (similarly with the C testcase).  It would be nice to know what fixed it. H.J,
> do you think you can track it?

The #c0 testcase stopped ICEing with
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185913
and the #c13 testcase just ICEd a few revisions around r185950.