[Bug rtl-optimization/83682] [8 Regression] ICE in simplify_subreg, at simplify-rtx.c:6296

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83682

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Cleaned up testcase:
typedef float V __attribute__((__vector_size__(16)));
typedef double W __attribute__((__vector_size__(16)));
V b;
W c;

void
foo (void *p)
{
  V e = __builtin_ia32_cvtsd2ss (b, c);
  V g = e;
  float f = g[0];
  __builtin_memcpy (p, &f, sizeof (f));
}

Started with r254294.