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Diffstat (limited to 'gcc/testsuite/gfortran.dg/g77/980519-2.f')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/g77/980519-2.f | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/g77/980519-2.f b/gcc/testsuite/gfortran.dg/g77/980519-2.f new file mode 100644 index 000000000..3134a00b5 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/g77/980519-2.f @@ -0,0 +1,51 @@ +c { dg-do compile } +* Date: Fri, 17 Apr 1998 14:12:51 +0200 +* From: Jean-Paul Jeannot <jeannot@gx-tech.fr> +* Organization: GX Technology France +* To: egcs-bugs@cygnus.com +* Subject: identified bug in g77 on Alpha +* +* Dear Sir, +* +* You will find below the assembly code of a simple Fortran routine which +* crashes with segmentation fault when storing the first element +* in( jT_f-hd_T ) = Xsp +* whereas everything is fine when commenting this line. +* +* The assembly code (generated with +* -ffast-math -fexpensive-optimizations -fomit-frame-pointer -fno-inline +* or with -O5) +* uses a zapnot instruction to copy an address. +* BUT the zapnot parameter is 15 (copuing 4 bytes) instead of 255 (to copy +* 8 bytes). +* +* I guess this is typically a 64 bit issue. As, from my understanding, +* zapnots are used a lot to copy registers, this may create problems +* elsewhere. +* +* Thanks for your help +* +* Jean-Paul Jeannot +* + subroutine simul_trace( in, Xsp, Ysp, Xrcv, Yrcv ) + +c Next declaration added on transfer to gfortran testsuite + integer hd_S, hd_Z, hd_T + + common /Idim/ jT_f, jT_l, nT, nT_dim + common /Idim/ jZ_f, jZ_l, nZ, nZ_dim + common /Idim/ jZ2_f, jZ2_l, nZ2, nZ2_dim + common /Idim/ jzs_f, jzs_l, nzs, nzs_dim, l_amp + common /Idim/ hd_S, hd_Z, hd_T + common /Idim/ nlay, nlayz + common /Idim/ n_work + common /Idim/ nb_calls + + real Xsp, Ysp, Xrcv, Yrcv + real in( jT_f-hd_T : jT_l ) + + in( jT_f-hd_T ) = Xsp + in( jT_f-hd_T + 1 ) = Ysp + in( jT_f-hd_T + 2 ) = Xrcv + in( jT_f-hd_T + 3 ) = Yrcv + end |