[clang] [llvm] [X86][AVX10.2] Support AVX10.2-BF16 new instructions. (PR #101603)

[Freddy Ye via cfe-commits]

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@@ -910,3 +910,313 @@ multiclass avx10_convert_2op_nomb<string OpcodeStr, AVX512VLVectorVTInfo _dest,
 defm VCVTHF82PH : avx10_convert_2op_nomb<"vcvthf82ph", avx512vl_f16_info,
                                          avx512vl_i8_info, 0x1e, X86vcvthf82ph>,
                   AVX512XDIi8Base, T_MAP5, EVEX, EVEX_CD8<16, CD8VH>;
+
+//-------------------------------------------------
+// AVX10 BF16 instructions
+//-------------------------------------------------
+
+// VADDNEPBF16, VSUBNEPBF16, VMULNEPBF16, VDIVNEPBF16, VMAXPBF16, VMINPBF16
+multiclass avx10_fp_binopne_int_pbf16<bits<8> opc, string OpcodeStr,
+                   X86SchedWriteSizes sched,
+                   bit IsCommutable = 0> {
+  let Predicates = [HasAVX10_2_512] in
+    defm PBF16Z : avx512_fp_packed<opc, OpcodeStr,
+                                !cast<Intrinsic>("int_x86_avx10_"#OpcodeStr#"pbf16512"),
+                                !cast<Intrinsic>("int_x86_avx10_"#OpcodeStr#"pbf16512"),
+                                v32bf16_info, sched.PH.ZMM, IsCommutable>, EVEX_V512,
+                                T_MAP5, PD, EVEX_CD8<16, CD8VF>;
+  let Predicates = [HasAVX10_2] in {
+    defm PBF16Z128 : avx512_fp_packed<opc, OpcodeStr,
+                                !cast<Intrinsic>("int_x86_avx10_"#OpcodeStr#"pbf16128"),
+                                !cast<Intrinsic>("int_x86_avx10_"#OpcodeStr#"pbf16128"),
+                                v8bf16x_info, sched.PH.XMM, IsCommutable>, EVEX_V128,
+                                T_MAP5, PD, EVEX_CD8<16, CD8VF>;
+    defm PBF16Z256 : avx512_fp_packed<opc, OpcodeStr,
+                                !cast<Intrinsic>("int_x86_avx10_"#OpcodeStr#"pbf16256"),
+                                !cast<Intrinsic>("int_x86_avx10_"#OpcodeStr#"pbf16256"),
+                                v16bf16x_info, sched.PH.YMM, IsCommutable>, EVEX_V256,
+                                T_MAP5, PD, EVEX_CD8<16, CD8VF>;
+  }
+}
+
+multiclass avx10_fp_binop_pbf16<bits<8> opc, string OpcodeStr, SDPatternOperator OpNode,
+                              X86SchedWriteSizes sched,
+                              bit IsCommutable = 0,
+                              SDPatternOperator MaskOpNode = OpNode> {
+  let Predicates = [HasAVX10_2_512] in
+    defm NEPBF16Z : avx512_fp_packed<opc, OpcodeStr, OpNode, MaskOpNode, 
+                                v32bf16_info, sched.PH.ZMM, IsCommutable>, EVEX_V512,
+                                T_MAP5, PD, EVEX_CD8<16, CD8VF>;
+  let Predicates = [HasAVX10_2] in {
+    defm NEPBF16Z128 : avx512_fp_packed<opc, OpcodeStr, OpNode, MaskOpNode, 
+                                v8bf16x_info, sched.PH.XMM, IsCommutable>, EVEX_V128,
+                                T_MAP5, PD, EVEX_CD8<16, CD8VF>;
+    defm NEPBF16Z256 : avx512_fp_packed<opc, OpcodeStr, OpNode, MaskOpNode, 
+                                v16bf16x_info, sched.PH.YMM, IsCommutable>, EVEX_V256,
+                                T_MAP5, PD, EVEX_CD8<16, CD8VF>;
+  }
+}
+
+let Uses = []<Register>, mayRaiseFPException = 0 in {
+defm VADD : avx10_fp_binop_pbf16<0x58, "vaddne", fadd, SchedWriteFAddSizes, 1>;
+defm VSUB : avx10_fp_binop_pbf16<0x5C, "vsubne", fsub, SchedWriteFAddSizes, 0>;
----------------
FreddyLeaf wrote:

its parent multiclasses xmay set `mayRaiseFPException = 1`

https://github.com/llvm/llvm-project/pull/101603