diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -873,23 +873,7 @@
     break;
   }
 
-  switch (BT->getKind()) {
-  case BuiltinType::Long:
-    BTName = "long int";
-    break;
-  case BuiltinType::LongLong:
-    BTName = "long long int";
-    break;
-  case BuiltinType::ULong:
-    BTName = "long unsigned int";
-    break;
-  case BuiltinType::ULongLong:
-    BTName = "long long unsigned int";
-    break;
-  default:
-    BTName = BT->getName(CGM.getLangOpts());
-    break;
-  }
+  BTName = BT->getName(CGM.getLangOpts());
   // Bit size and offset of the type.
   uint64_t Size = CGM.getContext().getTypeSize(BT);
   return DBuilder.createBasicType(BTName, Size, Encoding);
diff --git a/clang/test/CodeGen/aarch64-debug-sve-vector-types.c b/clang/test/CodeGen/aarch64-debug-sve-vector-types.c
--- a/clang/test/CodeGen/aarch64-debug-sve-vector-types.c
+++ b/clang/test/CodeGen/aarch64-debug-sve-vector-types.c
@@ -46,12 +46,12 @@
 
   // CHECK-DAG: name: "__SVInt64_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1_64]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed)
   __SVInt64_t s64;
 
   // CHECK-DAG: name: "__SVUint64_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1_64]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned)
   __SVUint64_t u64;
 
   // CHECK:     name: "__SVFloat16_t",{{.*}}, baseType: ![[CT16:[0-9]+]]
diff --git a/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c b/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c
--- a/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c
+++ b/clang/test/CodeGen/aarch64-debug-sve-vectorx2-types.c
@@ -40,14 +40,14 @@
 
   // CHECK-DAG: name: "__clang_svint64x2_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x2_64:[0-9]+]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed)
   // CHECK-DAG: ![[ELTS1x2_64]] = !{![[REALELTS1x2_64:[0-9]+]]}
   // CHECK-DAG: ![[REALELTS1x2_64]] = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 2, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus))
   __clang_svint64x2_t s64;
 
   // CHECK-DAG: name: "__clang_svuint64x2_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x2_64]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned)
   __clang_svuint64x2_t u64;
 
   // CHECK:     name: "__clang_svfloat16x2_t",{{.*}}, baseType: ![[CT16:[0-9]+]]
diff --git a/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c b/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c
--- a/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c
+++ b/clang/test/CodeGen/aarch64-debug-sve-vectorx3-types.c
@@ -40,14 +40,14 @@
 
   // CHECK-DAG: name: "__clang_svint64x3_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x3_64:[0-9]+]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed)
   // CHECK-DAG: ![[ELTS1x3_64]] = !{![[REALELTS1x3_64:[0-9]+]]}
   // CHECK-DAG: ![[REALELTS1x3_64]] = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 3, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus))
   __clang_svint64x3_t s64;
 
   // CHECK-DAG: name: "__clang_svuint64x3_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x3_64]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned)
   __clang_svuint64x3_t u64;
 
   // CHECK:     name: "__clang_svfloat16x3_t",{{.*}}, baseType: ![[CT16:[0-9]+]]
diff --git a/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c b/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c
--- a/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c
+++ b/clang/test/CodeGen/aarch64-debug-sve-vectorx4-types.c
@@ -40,14 +40,14 @@
 
   // CHECK-DAG: name: "__clang_svint64x4_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x4_64:[0-9]+]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long", size: 64, encoding: DW_ATE_signed)
   // CHECK-DAG: ![[ELTS1x4_64]] = !{![[REALELTS1x4_64:[0-9]+]]}
   // CHECK-DAG: ![[REALELTS1x4_64]] = !DISubrange(lowerBound: 0, upperBound: !DIExpression(DW_OP_constu, 4, DW_OP_bregx, 46, 0, DW_OP_mul, DW_OP_constu, 1, DW_OP_minus))
   __clang_svint64x4_t s64;
 
   // CHECK-DAG: name: "__clang_svuint64x4_t",{{.*}}, baseType: ![[CT64:[0-9]+]]
   // CHECK-DAG: ![[CT64]] = !DICompositeType(tag: DW_TAG_array_type, baseType: ![[ELTTY64:[0-9]+]], flags: DIFlagVector, elements: ![[ELTS1x4_64]])
-  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
+  // CHECK-DAG: ![[ELTTY64]] = !DIBasicType(name: "unsigned long", size: 64, encoding: DW_ATE_unsigned)
   __clang_svuint64x4_t u64;
 
   // CHECK:     name: "__clang_svfloat16x4_t",{{.*}}, baseType: ![[CT16:[0-9]+]]
diff --git a/clang/test/CodeGen/debug-info-enum.cpp b/clang/test/CodeGen/debug-info-enum.cpp
--- a/clang/test/CodeGen/debug-info-enum.cpp
+++ b/clang/test/CodeGen/debug-info-enum.cpp
@@ -77,7 +77,7 @@
 // CHECK-SAME: baseType: ![[LONG:[0-9]+]]
 // CHECK-SAME: DIFlagEnumClass
 // CHECK-SAME: elements: ![[ELTS6:[0-9]+]]
-// CHECK: ![[LONG]] = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)
+// CHECK: ![[LONG]] = !DIBasicType(name: "long long", size: 64, encoding: DW_ATE_signed)
 // CHECK: ![[ELTS6]] = !{![[A6:[0-9]+]], ![[B6:[0-9]+]]}
 // CHECK: ![[A6]] = !DIEnumerator(name: "A6", value: -9223372036854775808)
 // CHECK: ![[B6]] = !DIEnumerator(name: "B6", value: 9223372036854775807)
@@ -87,7 +87,7 @@
 // CHECK-SAME: baseType: ![[ULONG:[0-9]+]]
 // CHECK-SAME: DIFlagEnumClass
 // CHECK-SAME: elements: ![[ELTS7:[0-9]+]]
-// CHECK: ![[ULONG]] = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
+// CHECK: ![[ULONG]] = !DIBasicType(name: "unsigned long long", size: 64, encoding: DW_ATE_unsigned)
 // CHECK: ![[ELTS7]] = !{![[A7:[0-9]+]]}
 // CHECK: ![[A7]] = !DIEnumerator(name: "A7", value: 18446744073709551615, isUnsigned: true)
 
diff --git a/clang/test/CodeGen/debug-info.c b/clang/test/CodeGen/debug-info.c
--- a/clang/test/CodeGen/debug-info.c
+++ b/clang/test/CodeGen/debug-info.c
@@ -58,3 +58,8 @@
 typedef unsigned long long uint64_t;
 typedef uint64_t uint64x2_t __attribute__((ext_vector_type(2)));
 uint64x2_t extvectbar[4];
+
+// CHECK-DAG: !DIBasicType(name: "long"
+// CHECK-DAG: !DIBasicType(name: "unsigned long long"
+void integral_types(long x, unsigned long long y) {
+}