diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp
--- a/llvm/lib/CodeGen/TargetLoweringBase.cpp
+++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp
@@ -2072,9 +2072,11 @@
 
   Name += IsSqrt ? "sqrt" : "div";
 
-  // TODO: Handle "half" or other float types?
+  // TODO: Handle other float types?
   if (VT.getScalarType() == MVT::f64) {
     Name += "d";
+  } else if (VT.getScalarType() == MVT::f16) {
+    Name += "h";
   } else {
     assert(VT.getScalarType() == MVT::f32 &&
            "Unexpected FP type for reciprocal estimate");
diff --git a/llvm/test/CodeGen/X86/avx512fp16-intrinsics.ll b/llvm/test/CodeGen/X86/avx512fp16-intrinsics.ll
--- a/llvm/test/CodeGen/X86/avx512fp16-intrinsics.ll
+++ b/llvm/test/CodeGen/X86/avx512fp16-intrinsics.ll
@@ -35,6 +35,32 @@
   ret <32 x half> %2
 }
 
+define <32 x half> @test_sqrt_ph_512_fast_estimate_attribute(<32 x half> %a0, <32 x half> %a1) "reciprocal-estimates"="vec-sqrt" {
+; CHECK-LABEL: test_sqrt_ph_512_fast_estimate_attribute:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vrsqrtph %zmm0, %zmm0
+; CHECK-NEXT:    vmulph %zmm0, %zmm1, %zmm0
+; CHECK-NEXT:    retq
+  %1 = call fast <32 x half> @llvm.sqrt.v32f16(<32 x half> %a0)
+  %2 = fdiv fast <32 x half> %a1, %1
+  ret <32 x half> %2
+}
+
+define <32 x half> @test_sqrt_ph_512_fast_estimate_attribute_2(<32 x half> %a0, <32 x half> %a1) "reciprocal-estimates"="vec-sqrth:1" {
+; CHECK-LABEL: test_sqrt_ph_512_fast_estimate_attribute_2:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vrsqrtph %zmm0, %zmm2
+; CHECK-NEXT:    vmulph %zmm2, %zmm0, %zmm0
+; CHECK-NEXT:    vfmadd213ph {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to32}, %zmm2, %zmm0
+; CHECK-NEXT:    vmulph {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to32}, %zmm2, %zmm2
+; CHECK-NEXT:    vmulph %zmm1, %zmm0, %zmm0
+; CHECK-NEXT:    vmulph %zmm0, %zmm2, %zmm0
+; CHECK-NEXT:    retq
+  %1 = call fast <32 x half> @llvm.sqrt.v32f16(<32 x half> %a0)
+  %2 = fdiv fast <32 x half> %a1, %1
+  ret <32 x half> %2
+}
+
 define <32 x half> @test_mask_sqrt_ph_512(<32 x half> %a0, <32 x half> %passthru, i32 %mask) {
 ; CHECK-LABEL: test_mask_sqrt_ph_512:
 ; CHECK:       # %bb.0: