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[PATCH i386 AVX512] [84/n] Add missing immediate checks.

This tiny patch adds couple of missing immediate checks.

AVX-512* tests on top of patch-set all pass
under simulator.

Is it ok for trunk?

	* config/i386/i386.c (ix86_expand_args_builtin): Handle
	avx_vpermilv4df_mask, avx_shufpd256_mask, avx_vpermilv2df_mask.

Thanks, K

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 00e1992..510ca5b 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -36610,6 +36610,7 @@ ix86_expand_args_builtin (const struct builtin_description *d,
 	      case CODE_FOR_sse4_1_blendps:
 	      case CODE_FOR_avx_blendpd256:
 	      case CODE_FOR_avx_vpermilv4df:
+	      case CODE_FOR_avx_vpermilv4df_mask:
 	      case CODE_FOR_avx512f_getmantv8df_mask:
 	      case CODE_FOR_avx512f_getmantv16sf_mask:
 	      case CODE_FOR_avx512vl_getmantv8sf_mask:
@@ -36622,12 +36623,14 @@ ix86_expand_args_builtin (const struct builtin_description *d,
 	      case CODE_FOR_avx512dq_rangepv8sf_mask:
 	      case CODE_FOR_avx512dq_rangepv2df_mask:
 	      case CODE_FOR_avx512dq_rangepv4sf_mask:
+	      case CODE_FOR_avx_shufpd256_mask:
 		error ("the last argument must be a 4-bit immediate");
 		return const0_rtx;
 	      case CODE_FOR_sha1rnds4:
 	      case CODE_FOR_sse4_1_blendpd:
 	      case CODE_FOR_avx_vpermilv2df:
+	      case CODE_FOR_avx_vpermilv2df_mask:
 	      case CODE_FOR_xop_vpermil2v2df3:
 	      case CODE_FOR_xop_vpermil2v4sf3:
 	      case CODE_FOR_xop_vpermil2v4df3:

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