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Re: other/10901: non-local goto's (still) don't work on apple-powerpc-darwin


This should be target, as it only effects powerpc-apple-darwin.

In 3.4 (do not know about 3.3):
It looks like the register that is holding the pic address is overwritten in bar so when the jump happens the pic register now holds the pic for bar, not for main so it prints out some garbage.
It looks like it should save and restore it in r30 like stack register is.
A workaround in 3.4 for applications is to use -mdynamic-no-pic which will get rid of the pic code.


Thanks,
Andrew Pinski

On Wednesday, May 21, 2003, at 06:15 US/Eastern, gcc@microbizz.nl wrote:
extern int puts (const char *);
extern void abort (void);

int main (void)
{
  __label__ l1;

  void foo (void)
  {

    void bar (void)
    {
      puts ("goto l1");
      goto l1;
    }

    bar ();
  }

  foo ();
  abort ();
l1:
  puts ("label l1");
  return 0;
}
How-To-Repeat:
gcc nonlocalgoto.c -o nonlocalgoto -O3
gcc nonlocalgoto.c -o nonlocalgoto -O0

Fix:

Release-Note:
Audit-Trail:
Unformatted:




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