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