[gcc r13-4180] define builtins for "shared" avxneconvert-avx512bf16vl builtins.

[gcc r13-4180] define builtins for "shared" avxneconvert-avx512bf16vl builtins.

[hongtao Liu]

https://gcc.gnu.org/g:183db4fb73a64bc4641604c30cdbbd9d9e8a6ed6

commit r13-4180-g183db4fb73a64bc4641604c30cdbbd9d9e8a6ed6
Author: liuhongt <hongtao.liu@intel.com>
Date:   Thu Nov 17 16:19:31 2022 +0800

    define builtins for "shared" avxneconvert-avx512bf16vl builtins.
    
    This should fix incorrect error when call those builtin with
    -mavxneconvert and w/o -mavx512bf16 -mavx512vl.
    
    gcc/ChangeLog:
    
            * config/i386/i386-builtins.cc (def_builtin): Handle "shared"
            avx512bf16vl-avxneconvert builtins.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/i386/avxneconvert-1.c: New test.

Diff:
---
 gcc/config/i386/i386-builtins.cc               |  2 ++
 gcc/testsuite/gcc.target/i386/avxneconvert-1.c | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/gcc/config/i386/i386-builtins.cc b/gcc/config/i386/i386-builtins.cc
index 9412cf1acc8..eacdf072244 100644
--- a/gcc/config/i386/i386-builtins.cc
+++ b/gcc/config/i386/i386-builtins.cc
@@ -285,6 +285,8 @@ def_builtin (HOST_WIDE_INT mask, HOST_WIDE_INT mask2,
 	     avx512vl exist.  */
 	  || (mask2 == OPTION_MASK_ISA2_AVXVNNI)
 	  || (mask2 == OPTION_MASK_ISA2_AVXIFMA)
+	  || (mask2 == (OPTION_MASK_ISA2_AVXNECONVERT
+			| OPTION_MASK_ISA2_AVX512BF16))
 	  || (lang_hooks.builtin_function
 	      == lang_hooks.builtin_function_ext_scope))
 	{
diff --git a/gcc/testsuite/gcc.target/i386/avxneconvert-1.c b/gcc/testsuite/gcc.target/i386/avxneconvert-1.c
new file mode 100644
index 00000000000..2bb129c3f72
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avxneconvert-1.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-mavxneconvert -O2" } */
+
+typedef float v8sf __attribute__((vector_size(32)));
+typedef __bf16 v8bf __attribute__((vector_size(16)));
+
+v8bf
+foo (v8sf a)
+{
+  return __builtin_ia32_cvtneps2bf16_v8sf (a);
+}