--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.target/i386/pr92658-avx512vl.c	Mon May 25 07:50:57 2020 +0900
@@ -0,0 +1,129 @@
+/* PR target/92658 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftree-vectorize -mavx512f -mavx512vl" } */
+
+typedef unsigned char v16qi __attribute__((vector_size (16)));
+typedef unsigned short v8hi __attribute__((vector_size (16)));
+typedef unsigned int v4si __attribute__((vector_size (16)));
+typedef unsigned int v8si __attribute__((vector_size (32)));
+typedef unsigned long long v2di __attribute__((vector_size (16)));
+typedef unsigned long long v4di __attribute__((vector_size (32)));
+
+void
+truncqd_256 (v4si * dst, v4di * __restrict src)
+{
+  unsigned tem[4];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  dst[0] = *(v4si *) tem;
+}
+
+void
+truncqw_256 (v8hi * dst, v4di * __restrict src)
+{
+  unsigned short tem[4];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  dst[0] = *(v8hi *) tem;
+}
+
+void
+truncqb_256 (v16qi * dst, v4di * __restrict src)
+{
+  unsigned char tem[4];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  dst[0] = *(v16qi *) tem;
+}
+
+void
+truncqd_128 (v4si * dst, v2di * __restrict src)
+{
+  unsigned tem[4];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  dst[0] = *(v4si *) tem;
+}
+
+void
+truncqw_128 (v8hi * dst, v2di * __restrict src)
+{
+  unsigned short tem[4];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  dst[0] = *(v8hi *) tem;
+}
+
+void
+truncqb_128 (v16qi * dst, v2di * __restrict src)
+{
+  unsigned char tem[4];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  dst[0] = *(v16qi *) tem;
+}
+
+void
+truncdw_256 (v8hi * dst, v8si * __restrict src)
+{
+  unsigned short tem[8];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  tem[4] = (*src)[4];
+  tem[5] = (*src)[5];
+  tem[6] = (*src)[6];
+  tem[7] = (*src)[7];
+  dst[0] = *(v8hi *) tem;
+}
+
+void
+truncdb_256 (v16qi * dst, v8si * __restrict src)
+{
+  unsigned char tem[8];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  tem[4] = (*src)[4];
+  tem[5] = (*src)[5];
+  tem[6] = (*src)[6];
+  tem[7] = (*src)[7];
+  dst[0] = *(v16qi *) tem;
+}
+
+void
+truncdw_128 (v8hi * dst, v4si * __restrict src)
+{
+  unsigned short tem[8];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  dst[0] = *(v8hi *) tem;
+}
+
+void
+truncdb_128 (v16qi * dst, v4si * __restrict src)
+{
+  unsigned char tem[8];
+  tem[0] = (*src)[0];
+  tem[1] = (*src)[1];
+  tem[2] = (*src)[2];
+  tem[3] = (*src)[3];
+  dst[0] = *(v16qi *) tem;
+}
+
+/* { dg-final { scan-assembler-times "vpmovqd" 2 } } */
+/* { dg-final { scan-assembler-times "vpmovqw" 2 { xfail *-*-* } } } */
+/* { dg-final { scan-assembler-times "vpmovqb" 2 { xfail *-*-* } } } */
+/* { dg-final { scan-assembler-times "vpmovdw" 1 } } */
+/* { dg-final { scan-assembler-times "vpmovdw" 2 { xfail *-*-* } } } */
+/* { dg-final { scan-assembler-times "vpmovdb" 2 { xfail *-*-* } } } */