Re: PIC register allocation by reload (Was: Re: egcs-1.2 stuff)

[Franz Sirl <Franz.Sirl-kernel@lauterbach.com>]

At 23:15 06.05.99 , Geoff Keating wrote:
>Is this testcase already in the test suite?  It's stripped-down code
>from kaffe's implementation of GNU zip.

Geoff,

this testcase is not in the testsuite, but it also no longer FAILs with the 
current cvs-egcs, reload got a _lot_ smarter since egcs-1.1. But there's 
one testcase in the testsuite which still shows this problem with -fpic on 
PPC, attached below.

Franz.

PS. Geoff, if you want to play with the egcs-mainline a bit, login into the 
LinuxPPC developers machine, you'll find everything under ~fsirl/egcsm 
(source) and ~fsirl/obj/cvsm (build from today), you should have full 
access there.

gcc/testsuite/gcc.dg/980523-1.c:
/* { dg-do run { target rs6000-*-linux* powerpc-*-linux*} } */
/* { dg-options "-O2 -fpic" } */


void foo1(int a, char *b, int c)
{
    c =a+c+234;
}

int foo2(int d)
{
    return d*d;
}

int bar1, bar2, bar3;
char * bar4;

int main(void) {
     int h;
     bar1 = foo2(1);
     bar2 = foo2(1);

     h = foo2(1);
     foo1(1, "a", foo2(1));
     foo1(bar1, "a", foo2(1));
     foo2(1);

     h = foo2(1);
     bar3 = 1;
     bar4 = "a";
     foo1(1, "n", foo2(1));
     foo1(1, "o", foo2(1));
     foo1(1, "p", foo2(1));
     foo1(bar1, "a", foo2(1));

     bar3 = h;
     bar4 = "b";  foo1(bar1, "b", foo2(1));
     foo1(1, "q", foo2(1));
     bar4 = "c";  foo1(1, "c", foo2(1));
     bar4 = "d";  foo1(1, "d", foo2(1));
     bar4 = "e";  foo1(1, "e", foo2(1));
     bar4 = "f";  foo1(1, "f", foo2(1));
     bar4 = "g";  foo1(1, "g", foo2(1));
     bar4 = "h";  foo1(1, "h", foo2(1));
     bar4 = "i";  foo1(1, "i", foo2(1));
     bar4 = "j";  foo1(1, "j", foo2(1));
     bar4 = "k";  foo1(1, "k", foo2(1));
     bar4 = "l";  foo1(1, "l", foo2(1));
     bar4 = "m";
     foo1(bar2, "m", foo2(1));
     exit(0);
}