diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -52991,7 +52991,7 @@
       }
     }
     if (const auto *CF = dyn_cast<ConstantFP>(c))
-      return CF->isNegativeZeroValue();
+      return CF->getType()->isFloatTy() && CF->isNegativeZeroValue();
     return false;
   };
   auto combineConjugation = [&](SDValue &r) {
diff --git a/llvm/test/CodeGen/X86/avx512fp16-combine-xor-vfmulc.ll b/llvm/test/CodeGen/X86/avx512fp16-combine-xor-vfmulc.ll
--- a/llvm/test/CodeGen/X86/avx512fp16-combine-xor-vfmulc.ll
+++ b/llvm/test/CodeGen/X86/avx512fp16-combine-xor-vfmulc.ll
@@ -69,8 +69,10 @@
 define dso_local <32 x half> @test5(<32 x half> noundef %a, <32 x half> noundef %b) local_unnamed_addr #0 {
 ; CHECK-LABEL: test5:
 ; CHECK:       # %bb.0: # %entry
-; CHECK-NEXT:    vfcmulcph %zmm1, %zmm0, %zmm2
-; CHECK-NEXT:    vmovaps %zmm2, %zmm0
+; CHECK-NEXT:    vpbroadcastw {{.*#+}} zmm2 = [-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0,-0.0E+0]
+; CHECK-NEXT:    vpxorq %zmm2, %zmm1, %zmm2
+; CHECK-NEXT:    vfmulcph %zmm2, %zmm0, %zmm1
+; CHECK-NEXT:    vmovaps %zmm1, %zmm0
 ; CHECK-NEXT:    retq
 entry:
   %fneg = fneg <32 x half> %b