[Bug target/60205] New: No ABU warning for AVX-512

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60205

            Bug ID: 60205
           Summary: No ABU warning for AVX-512
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: kirill.yukhin at intel dot com

[hjl@gnu-6 avx512-1]$ cat w.i
typedef long long __m512i __attribute__ ((__vector_size__ (64),
__may_alias__));
typedef long long __m256i __attribute__ ((__vector_size__ (32),
__may_alias__));

__m256i
foo1 (__m256i x, __m256i y, __m256i z)
{
  return z;
}

__m512i
foo2 (__m512i x, __m512i y, __m512i z)
{
  return z;
}
[hjl@gnu-6 avx512-1]$ make w.s
/export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/ -mavx512f -O2 -S w.i
[hjl@gnu-6 avx512-1]$ make clean
rm -f *.s *.o *.i.* *.c.*
[hjl@gnu-6 avx512-1]$ cat w.i
typedef long long __m512i __attribute__ ((__vector_size__ (64),
__may_alias__));
typedef long long __m256i __attribute__ ((__vector_size__ (32),
__may_alias__));

__m256i
foo1 (__m256i x, __m256i y, __m256i z)
{
  return z;
}

__m512i
foo2 (__m512i x, __m512i y, __m512i z)
{
  return z;
}
[hjl@gnu-6 avx512-1]$ /export/build/gnu/gcc/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/gcc/build-x86_64-linux/gcc/  -O2 -S w.i
w.i: In function âfoo1â:
w.i:6:1: warning: AVX vector return without AVX enabled changes the ABI
 {
 ^
w.i:5:1: note: The ABI for passing parameters with 32-byte alignment has
changed in GCC 4.6
 foo1 (__m256i x, __m256i y, __m256i z)
 ^
w.i:5:1: warning: AVX vector argument without AVX enabled changes the ABI
[hjl@gnu-6 avx512-1]$ 

I am expecting similar warnings for AVX-512.