[X86][FP16] Add missing handling for FP16 constrained cmp intrinsics (#67400)

Author: phoebewang

clang/lib/CodeGen/CGBuiltin.cpp

@@ -15594,6 +15594,15 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
       case X86::BI__builtin_ia32_cmppd256:
         IID = Intrinsic::x86_avx_cmp_pd_256;
         break;
+      case X86::BI__builtin_ia32_cmpph128_mask:
+        IID = Intrinsic::x86_avx512fp16_mask_cmp_ph_128;
+        break;
+      case X86::BI__builtin_ia32_cmpph256_mask:
+        IID = Intrinsic::x86_avx512fp16_mask_cmp_ph_256;
+        break;
+      case X86::BI__builtin_ia32_cmpph512_mask:
+        IID = Intrinsic::x86_avx512fp16_mask_cmp_ph_512;
+        break;
       case X86::BI__builtin_ia32_cmpps512_mask:
         IID = Intrinsic::x86_avx512_mask_cmp_ps_512;
         break;