[Bug target/63594] [5 Regression] ICE: in ix86_vector_duplicate_value, at config/i386/i386.c:39831 with -mavx512f

["jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63594

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Better testcase that tests both broadcasts from GPRs and broadcasts from
memory:

#define C1 c
#define C2 C1, C1
#define C4 C2, C2
#define C8 C4, C4
#define C16 C8, C8
#define C32 C16, C16
#define C64 C32, C32
#define C_(n) n
#define C(n) C_(C##n)

#define T(t,s) \
typedef t v##t##s __attribute__ ((__vector_size__ (s * sizeof (t))));    \
v##t##s test##t##s (t c)                        \
{                                    \
  v##t##s v = { C(s) };                            \
  return v;                                \
}                                    \
v##t##s test2##t##s (t *p)                        \
{                                    \
  t c = *p;                                \
  v##t##s v = { C(s) };                            \
  return v;                                \
}

typedef long long llong;

T(char, 64)
T(char, 32)
T(char, 16)
T(char, 8)
T(short, 32)
T(short, 16)
T(short, 8)
T(short, 4)
T(int, 16)
T(int, 8)
T(int, 4)
T(int, 2)
T(float, 16)
T(float, 8)
T(float, 4)
T(float, 2)
T(llong, 8)
T(llong, 4)
T(llong, 2)
T(double, 8)
T(double, 4)
T(double, 2)