[Bug debug/32444] New: missing debug information for structure components

["geoffk at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Given the following short program,

struct pt
{
  int x, y;
};

struct pt sum(struct pt *p)
{
  struct pt tmp = { 0, 0 };
  int i;
  for (i = 0; i < 100; i++)
    {
      tmp.x += p[i].x;
      tmp.y += p[i].y;
    }
  return tmp;
}

on powerpc-darwin, built with -O2, I see that the main loop is storing tmp.x in
r8 and tmp.y in r10 (or possibly the other way around).  Yet, the debug
information contains no location information for 'tmp'.  A similar thing
happens on i386-darwin where the values are stored in eax and edx.

Also, on i386-darwin, 'i' is also not present in the debug information,
although it is in %ecx.

L2:
        addl    -8(%esi,%ecx,8), %eax
        addl    -4(%esi,%ecx,8), %edx
        addl    $1, %ecx
        cmpl    $101, %ecx
        jne     L2


-- 
           Summary: missing debug information for structure components
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: geoffk at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32444