diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -11576,5 +11576,12 @@
 def err_hlsl_numthreads_invalid : Error<"total number of threads cannot exceed %0">;
 def err_hlsl_attribute_param_mismatch : Error<"%0 attribute parameters do not match the previous declaration">;
 
+def err_hlsl_pointers_unsupported : Error<"%select{pointers|references}0 are "
+                                          "unsupported in HLSL">;
+
+def err_hlsl_operator_unsupported : Error<"the %select{address of (&)|"
+                                           "dereference (*)|arrow (->)}0 "
+                                           "operator is unsupported in HLSL">;
+
 } // end of sema component.
 
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -15249,6 +15249,13 @@
     }
   }
 
+  if (getLangOpts().HLSL) {
+    if (Opc == UO_AddrOf)
+      return ExprError(Diag(OpLoc, diag::err_hlsl_operator_unsupported) << 0);
+    if (Opc == UO_Deref)
+      return ExprError(Diag(OpLoc, diag::err_hlsl_operator_unsupported) << 1);
+  }
+
   switch (Opc) {
   case UO_PreInc:
   case UO_PreDec:
diff --git a/clang/lib/Sema/SemaExprMember.cpp b/clang/lib/Sema/SemaExprMember.cpp
--- a/clang/lib/Sema/SemaExprMember.cpp
+++ b/clang/lib/Sema/SemaExprMember.cpp
@@ -1736,6 +1736,9 @@
   DeclarationName Name = NameInfo.getName();
   bool IsArrow = (OpKind == tok::arrow);
 
+  if (getLangOpts().HLSL && IsArrow)
+    return ExprError(Diag(OpLoc, diag::err_hlsl_operator_unsupported) << 2);
+
   NamedDecl *FirstQualifierInScope
     = (!SS.isSet() ? nullptr : FindFirstQualifierInScope(S, SS.getScopeRep()));
 
diff --git a/clang/lib/Sema/SemaType.cpp b/clang/lib/Sema/SemaType.cpp
--- a/clang/lib/Sema/SemaType.cpp
+++ b/clang/lib/Sema/SemaType.cpp
@@ -2143,6 +2143,11 @@
     return QualType();
   }
 
+  if (getLangOpts().HLSL) {
+    Diag(Loc, diag::err_hlsl_pointers_unsupported) << 0;
+    return QualType();
+  }
+
   if (checkQualifiedFunction(*this, T, Loc, QFK_Pointer))
     return QualType();
 
@@ -2208,6 +2213,11 @@
     return QualType();
   }
 
+  if (getLangOpts().HLSL) {
+    Diag(Loc, diag::err_hlsl_pointers_unsupported) << 1;
+    return QualType();
+  }
+
   if (checkQualifiedFunction(*this, T, Loc, QFK_Reference))
     return QualType();
 
@@ -2967,6 +2977,11 @@
     return QualType();
   }
 
+  if (getLangOpts().HLSL) {
+    Diag(Loc, diag::err_hlsl_pointers_unsupported) << 0;
+    return QualType();
+  }
+
   // Adjust the default free function calling convention to the default method
   // calling convention.
   bool IsCtorOrDtor =
diff --git a/clang/test/SemaHLSL/prohibit_pointer.hlsl b/clang/test/SemaHLSL/prohibit_pointer.hlsl
new file mode 100644
--- /dev/null
+++ b/clang/test/SemaHLSL/prohibit_pointer.hlsl
@@ -0,0 +1,56 @@
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -o - -fsyntax-only %s -verify
+
+// expected-error@+1 {{pointers are unsupported in HLSL}}
+typedef int (*fn_int)(int);
+void* bark(int); // expected-error {{pointers are unsupported in HLSL}}
+void meow(int*); // expected-error {{pointers are unsupported in HLSL}}
+
+struct Foo {
+  int X;
+  int Y;
+} *bad; // expected-error {{pointers are unsupported in HLSL}}
+
+// expected-error@+1 {{pointers are unsupported in HLSL}}
+void woof(int Foo::*Member);
+
+int entry() {
+  int X;
+  Foo F;
+  
+  // expected-error@+2 {{the address of (&) operator is unsupported in HLSL}}
+  // expected-error@+1 {{pointers are unsupported in HLSL}}
+  int Foo::*Member = &F.X;
+  
+  // expected-error@+1 {{the address of (&) operator is unsupported in HLSL}}
+  int *Y = &X; // expected-error {{pointers are unsupported in HLSL}}
+  
+  // expected-error@+2 {{the arrow (->) operator is unsupported in HLSL}}
+  // expected-error@+1 {{the address of (&) operator is unsupported in HLSL}}
+  int W = (&F)->X;
+
+  int Array[2];
+  // expected-error@+1 {{the address of (&) operator is unsupported in HLSL}}
+  *(&Array[0] + 1) = 12;
+  // expected-error@+1 {{the dereference (*) operator is unsupported in HLSL}}
+  *Array = 12;
+}
+
+int roar(Foo *F) { // expected-error {{pointers are unsupported in HLSL}}
+  // expected-error@+1 {{the arrow (->) operator is unsupported in HLSL}}
+  return F->X;
+}
+
+template <typename T>
+void devilish_language(T look_ma_no_pointers);
+
+void make_me_cry() {
+  int X;
+  // expected-error@+1 {{the address of (&) operator is unsupported in HLSL}}
+  devilish_language(&X);
+
+  // not-expected-error@+1 {{pointers are unsupported in HLSL}}
+  devilish_language(roar); // allow function pointer decay
+
+  // not-expected-error@+1 {{pointers are unsupported in HLSL}}
+  devilish_language("roar"); // allow array pointer decay
+}
diff --git a/clang/test/SemaHLSL/prohibit_reference.hlsl b/clang/test/SemaHLSL/prohibit_reference.hlsl
new file mode 100644
--- /dev/null
+++ b/clang/test/SemaHLSL/prohibit_reference.hlsl
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.0-compute -x hlsl -o - -fsyntax-only %s -verify
+
+int& bark(int); // expected-error {{references are unsupported in HLSL}}
+void meow(int&); // expected-error {{references are unsupported in HLSL}}
+
+struct Foo {
+  int X;
+  int Y;
+};
+
+int entry() {
+  int X;
+  int &Y = X; // expected-error {{references are unsupported in HLSL}}
+}
+
+int roar(Foo &F) { // expected-error {{references are unsupported in HLSL}}
+  return F.X;
+}