Revert D60974 "[clang-ifs] Clang Interface Stubs, first version."

This reverts commit rC363626.

clangIndex depends on clangFrontend. r363626 adds a dependency from
clangFrontend to clangIndex, which creates a circular dependency.

This is disallowed by -DBUILD_SHARED_LIBS=on builds:

    CMake Error: The inter-target dependency graph contains the following strongly connected component (cycle):
      "clangFrontend" of type SHARED_LIBRARY
        depends on "clangIndex" (weak)
      "clangIndex" of type SHARED_LIBRARY
        depends on "clangFrontend" (weak)
    At least one of these targets is not a STATIC_LIBRARY.  Cyclic dependencies are allowed only among static libraries.

Note, the dependency on clangIndex cannot be removed because
libclangFrontend.so is linked with -Wl,-z,defs: a shared object must
have its full direct dependencies specified on the linker command line.

In -DBUILD_SHARED_LIBS=off builds, this appears to work when linking
`bin/clang-9`. However, it can cause trouble to downstream clang library
users. The llvm build system links libraries this way:

    clang main_program_object_file ... lib/libclangIndex.a ...  lib/libclangFrontend.a -o exe

libclangIndex.a etc are not wrapped in --start-group.

If the downstream application depends on libclangFrontend.a but not any
other clang libraries that depend on libclangIndex.a, this can cause undefined
reference errors when the linker is ld.bfd or gold.

The proper fix is to not include clangIndex files in clangFrontend.

llvm-svn: 363649

12 files changed, 0 insertions, 500 deletions

diff --git a/clang/test/InterfaceStubs/bad-format.cpp b/clang/test/InterfaceStubs/bad-format.cpp
deleted file mode 100644
index d40b1f965b0..00000000000
--- a/clang/test/InterfaceStubs/bad-format.cpp
+++ /dev/null
@@ -1,7 +0,0 @@
-// RUN: not %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=bar-format %s 2>&1 | FileCheck %s
-
-// CHECK: error: invalid value
-// CHECK: '-interface-stub-version=<experimental-tapi-elf-v1 |
-// CHECK: experimental-yaml-elf-v1>' in 'Must specify a valid interface
-// CHECK: stub format type using
diff --git a/clang/test/InterfaceStubs/class-template-specialization.cpp b/clang/test/InterfaceStubs/class-template-specialization.cpp
deleted file mode 100644
index d1f1d067ccd..00000000000
--- a/clang/test/InterfaceStubs/class-template-specialization.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-TAPI %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-TAPI2 %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | \
-// RUN: llvm-readelf -s - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-// For the following:
-// g()
-// n::S<int>::S()
-// n::S<int>::~S()
-// n::S<int>::func() const
-// n::S<int>::S(n::S<int> const&)
-
-// We expect these manglings:
-// CHECK-TAPI: Symbols:
-// CHECK-TAPI-NOT: _ZNK1n1SIiEclEv
-// CHECK-TAPI2: Symbols:
-// CHECK-TAPI2: _Z1g
-
-// CHECK-SYMBOLS-DAG: FUNC    GLOBAL DEFAULT    {{[0-9]}} _Z1g
-// CHECK-SYMBOLS-DAG: FUNC    WEAK   HIDDEN     {{[0-9]}} _ZNK1n1SIiEclEv
-
-namespace n {
-template <typename T>
-struct __attribute__((__visibility__("default"))) S {
-  S() = default;
-  ~S() = default;
-  int __attribute__((__visibility__(("default")))) func() const {
-    return 1844;
-  }
-  int __attribute__((__visibility__(("hidden")))) operator()() const {
-    return 1863;
-  }
-};
-} // namespace n
-
-void g() { n::S<int>()(); }
diff --git a/clang/test/InterfaceStubs/externstatic.c b/clang/test/InterfaceStubs/externstatic.c
deleted file mode 100644
index 9224581ee06..00000000000
--- a/clang/test/InterfaceStubs/externstatic.c
+++ /dev/null
@@ -1,29 +0,0 @@
-// RUN: %clang -DSTORAGE="extern" -target x86_64-unknown-linux-gnu -o - \
-// RUN: -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=c99 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-EXTERN %s
-// RUN: %clang -DSTORAGE="extern" -target x86_64-linux-gnu -O0 -o - -c -std=c99 \
-// RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-EXTERN %s
-
-// RUN: %clang -DSTORAGE="extern" -target x86_64-unknown-linux-gnu -o - \
-// RUN: -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=c99 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-EXTERN2 %s
-// RUN: %clang -DSTORAGE="extern" -target x86_64-linux-gnu -O0 -o - -c -std=c99 \
-// RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-EXTERN2 %s
-
-// RUN: %clang -DSTORAGE="static" -target x86_64-unknown-linux-gnu -o - \
-// RUN: -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=c99 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-STATIC %s
-// RUN: %clang -DSTORAGE="static" -target x86_64-linux-gnu -O0 -o - -c -std=c99 \
-// RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-STATIC %s
-
-// CHECK-EXTERN-NOT: foo
-// CHECK-STATIC-NOT: foo
-// CHECK-STATIC-NOT: bar
-
-// We want to emit extern function symbols.
-// CHECK-EXTERN2: bar
-STORAGE int foo;
-STORAGE int bar() { return 42; }
diff --git a/clang/test/InterfaceStubs/function-template-specialization.cpp b/clang/test/InterfaceStubs/function-template-specialization.cpp
deleted file mode 100644
index b6cf64c6027..00000000000
--- a/clang/test/InterfaceStubs/function-template-specialization.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | FileCheck %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DUSE_TEMPLATE_FUNCTION=1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-USES-TEMPLATE-FUNCTION %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DSPECIALIZE_TEMPLATE_FUNCTION=1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-SPECIALIZES-TEMPLATE-FUNCTION %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: %s | llvm-nm - 2>&1 | FileCheck %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: -DUSE_TEMPLATE_FUNCTION=1 %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-USES-TEMPLATE-FUNCTION %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: -DSPECIALIZE_TEMPLATE_FUNCTION=1 %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SPECIALIZES-TEMPLATE-FUNCTION %s
-
-// CHECK-NOT: _Z16templateFunctionIiET_S0_
-// CHECK-USES-TEMPLATE-FUNCTION-DAG: _Z16templateFunctionIiET_S0_
-// CHECK-SPECIALIZES-TEMPLATE-FUNCTION-DAG: _Z16templateFunctionIiET_S0_
-template <typename T>
-T templateFunction(T t) { return t; }
-
-#ifdef USE_TEMPLATE_FUNCTION
-int FortyTwo = templateFunction<int>(42);
-#endif
-
-#ifdef SPECIALIZE_TEMPLATE_FUNCTION
-template <>
-int templateFunction<int>(int t);
-// TODO: Make it so that -emit-interface-stubs does not emit
-// _Z16templateFunctionIiET_S0_ if there is no user of the specialization.
-int foo() { return templateFunction(42); }
-#endif
diff --git a/clang/test/InterfaceStubs/hidden-class-inheritance.cpp b/clang/test/InterfaceStubs/hidden-class-inheritance.cpp
deleted file mode 100644
index de4c2993c72..00000000000
--- a/clang/test/InterfaceStubs/hidden-class-inheritance.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DPARENT_CLASS_VISIBILITY="" -DCHILD_CLASS_VISIBILITY="" \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: FileCheck -check-prefix=CHECK-X %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: -DPARENT_CLASS_VISIBILITY="" -DCHILD_CLASS_VISIBILITY="" \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: llvm-readelf -s - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-X-RE %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DPARENT_CLASS_VISIBILITY=HIDDEN -DCHILD_CLASS_VISIBILITY="" \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: FileCheck -check-prefix=CHECK-HP %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DPARENT_CLASS_VISIBILITY=HIDDEN -DCHILD_CLASS_VISIBILITY="" \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: FileCheck -check-prefix=CHECK-HP2 %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: -DPARENT_CLASS_VISIBILITY=HIDDEN -DCHILD_CLASS_VISIBILITY="" \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: llvm-readelf -s - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-HP-RE %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DPARENT_CLASS_VISIBILITY="" -DCHILD_CLASS_VISIBILITY=HIDDEN \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: FileCheck -check-prefix=CHECK-HC %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DPARENT_CLASS_VISIBILITY="" -DCHILD_CLASS_VISIBILITY=HIDDEN \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: FileCheck -check-prefix=CHECK-HC2 %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: -DPARENT_CLASS_VISIBILITY="" -DCHILD_CLASS_VISIBILITY=HIDDEN \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: llvm-readelf -s - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-HC-RE %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -DPARENT_CLASS_VISIBILITY=HIDDEN -DCHILD_CLASS_VISIBILITY=HIDDEN \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: FileCheck -check-prefix=CHECK-HP-HC %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c \
-// RUN: -DPARENT_CLASS_VISIBILITY=HIDDEN -DCHILD_CLASS_VISIBILITY=HIDDEN \
-// RUN: -DPARENT_METHOD_VISIBILITY="" -DCHILD_METHOD_VISIBILITY="" %s | \
-// RUN: llvm-readelf -s - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-HP-HC-RE %s
-
-// CHECK-X-DAG: _ZN1CC2Ev
-// CHECK-X-DAG: _ZN1CD0Ev
-// CHECK-X-DAG: _ZN1CD2Ev
-// CHECK-X-DAG: _ZN1SC2Ev
-// CHECK-X-DAG: _ZN1SD0Ev
-// CHECK-X-DAG: _ZN1SD2Ev
-// CHECK-X-DAG: _ZN1C1mEv
-// CHECK-X-DAG: _ZN1S1nEv
-
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1C1mEv
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1CC2Ev
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1CD0Ev
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1CD2Ev
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1S1nEv
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1SC2Ev
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1SD0Ev
-// CHECK-X-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1SD2Ev
-
-// CHECK-HP2-DAG: _ZN1CC2Ev
-// CHECK-HP2-DAG: _ZN1CD0Ev
-// CHECK-HP2-DAG: _ZN1CD2Ev
-// CHECK-HP2-DAG: _ZN1C1mEv
-
-// CHECK-HP-NOT: _ZN1S1nEv
-// CHECK-HP-NOT: _ZN1SC2Ev
-// CHECK-HP-NOT: _ZN1SD0Ev
-// CHECK-HP-NOT: _ZN1SD2Ev
-
-// CHECK-HP-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1C1mEv
-// CHECK-HP-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1CC2Ev
-// CHECK-HP-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1CD0Ev
-// CHECK-HP-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1CD2Ev
-// CHECK-HP-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1S1nEv
-// CHECK-HP-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1SC2Ev
-// CHECK-HP-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1SD0Ev
-// CHECK-HP-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1SD2Ev
-
-// CHECK-HC2-DAG: _ZN1SC2Ev
-// CHECK-HC2-DAG: _ZN1SD0Ev
-// CHECK-HC2-DAG: _ZN1SD2Ev
-// CHECK-HC2-DAG: _ZN1S1nEv
-
-// CHECK-HC-NOT: _ZN1C1mEv
-// CHECK-HC-NOT: _ZN1CC2Ev
-// CHECK-HC-NOT: _ZN1CD0Ev
-// CHECK-HC-NOT: _ZN1CD2Ev
-
-// CHECK-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1C1mEv
-// CHECK-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1CC2Ev
-// CHECK-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1CD0Ev
-// CHECK-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1CD2Ev
-// CHECK-HC-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1S1nEv
-// CHECK-HC-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1SC2Ev
-// CHECK-HC-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1SD0Ev
-// CHECK-HC-RE: FUNC    WEAK   DEFAULT   {{[0-9]+}} _ZN1SD2Ev
-
-// CHECK-HP-HC-NOT: _ZN1CC2Ev
-// CHECK-HP-HC-NOT: _ZN1CD0Ev
-// CHECK-HP-HC-NOT: _ZN1CD2Ev
-// CHECK-HP-HC-NOT: _ZN1SC2Ev
-// CHECK-HP-HC-NOT: _ZN1SD0Ev
-// CHECK-HP-HC-NOT: _ZN1SD2Ev
-// CHECK-HP-HC-NOT: _ZN1C1mEv
-// CHECK-HP-HC-NOT: _ZN1S1nEv
-
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1C1mEv
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1CC2Ev
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1CD0Ev
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1CD2Ev
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1S1nEv
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1SC2Ev
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1SD0Ev
-// CHECK-HP-HC-RE: FUNC    WEAK   HIDDEN    {{[0-9]+}} _ZN1SD2Ev
-
-// TODO: clang+llvm does not materialize complete ctors and dtors for the
-// Itanium abi. Figure out why and add the check-not for these:
-// _ZN1CC1Ev
-// _ZN1CD1Ev
-// _ZN1SC1Ev
-// _ZN1SD1Ev
-
-#define HIDDEN __attribute__((__visibility__("hidden")))
-#define DEFAULT __attribute__((__visibility__("default")))
-
-struct PARENT_CLASS_VISIBILITY S {
-  virtual ~S() {}
-  virtual PARENT_METHOD_VISIBILITY void n() {}
-};
-
-class CHILD_CLASS_VISIBILITY C : public S {
-public:
-  virtual CHILD_METHOD_VISIBILITY void m() {}
-};
-
-void f() {
-  C c;
-  c.m();
-  c.n();
-}
diff --git a/clang/test/InterfaceStubs/inline.c b/clang/test/InterfaceStubs/inline.c
deleted file mode 100644
index c64771185f3..00000000000
--- a/clang/test/InterfaceStubs/inline.c
+++ /dev/null
@@ -1,67 +0,0 @@
-// RUN: %clang -DINLINE=inline -target x86_64-unknown-linux-gnu -o - \
-// RUN: -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=gnu89 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-GNU %s
-// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -O0 -o - -c \
-// RUN: -std=gnu89 -xc %s | llvm-nm - | FileCheck -check-prefix=CHECK-GNU %s
-
-// RUN: %clang -DINLINE="__attribute__((always_inline))" \
-// RUN: -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-GNU %s
-// RUN: %clang -DINLINE="__attribute__((always_inline))" \
-// RUN: -target x86_64-linux-gnu -O0 -o - -c -xc %s | \
-// RUN: llvm-nm - | FileCheck -check-prefix=CHECK-GNU %s
-
-// RUN: %clang -DINLINE=inline -target x86_64-unknown-linux-gnu -o - \
-// RUN: -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=c99 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-STD %s
-// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -O0 -o - -c -std=c99 \
-// RUN: -xc %s | llvm-nm - 2>&1 | FileCheck -check-prefix=CHECK-STD %s
-
-// RUN: %clang -DINLINE="__attribute__((noinline))" \
-// RUN: -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=c99 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-NOINLINE %s
-// RUN: %clang -DINLINE="__attribute__((noinline))" -target x86_64-linux-gnu \
-// RUN: -O0 -o - -c -std=c99 -xc %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-NOINLINE %s
-
-// RUN: %clang -DINLINE="static" -target x86_64-unknown-linux-gnu -o - \
-// RUN: -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -std=c99 -xc %s | \
-// RUN: FileCheck -check-prefix=CHECK-STATIC %s
-// RUN: %clang -DINLINE="static" -target x86_64-linux-gnu -O0 -o - -c \
-// RUN: -std=c99 -xc %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-STATIC %s
-
-// CHECK-GNU-DAG: foo
-// CHECK-GNU-DAG: foo.var
-// CHECK-NOINLINE-DAG: foo
-// CHECK-NOINLINE-DAG: foo.var
-// CHECK-STATIC-NOT: foo
-// CHECK-STATIC-NOT: foo.var
-// CHECK-STD-NOT: foo
-#pragma clang diagnostic ignored "-Wstatic-local-in-inline"
-INLINE int foo() {
-  static int var = 42;
-  return var;
-}
-
-// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -o - \
-// RUN: -emit-interface-stubs -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -std=gnu89 -xc %s | FileCheck -check-prefix=CHECK-TAPI %s
-
-// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -o - \
-// RUN: -emit-interface-stubs -interface-stub-version=experimental-tapi-elf-v1 \
-// RUN: -std=gnu89 -xc %s | FileCheck -check-prefix=CHECK-SYMBOLS %s
-// RUN: %clang -DINLINE=inline -target x86_64-linux-gnu -o - \
-// RUN: -c -std=gnu89 -xc %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-// CHECK-TAPI-DAG: foo: { Type: Func }
-// CHECK-TAPI-DAG: foo.var: { Type: Object, Size: 4 }
-// CHECK-SYMBOLS-DAG: foo
-// CHECK-SYMBOLS-DAG: foo.var
-#include "inline.h"
diff --git a/clang/test/InterfaceStubs/inline.h b/clang/test/InterfaceStubs/inline.h
deleted file mode 100644
index fe16519e94b..00000000000
--- a/clang/test/InterfaceStubs/inline.h
+++ /dev/null
@@ -1,4 +0,0 @@
-INLINE int bar() {
-  static int var = 42;
-  return var;
-}
diff --git a/clang/test/InterfaceStubs/object.cpp b/clang/test/InterfaceStubs/object.cpp
deleted file mode 100644
index 68b5ee781c9..00000000000
--- a/clang/test/InterfaceStubs/object.cpp
+++ /dev/null
@@ -1,13 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-TAPI %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-// CHECK-TAPI: data: { Type: Object, Size: 4 }
-// CHECK-SYMBOLS: data
-int data = 42;
diff --git a/clang/test/InterfaceStubs/template-namespace-function.cpp b/clang/test/InterfaceStubs/template-namespace-function.cpp
deleted file mode 100644
index 879318122b0..00000000000
--- a/clang/test/InterfaceStubs/template-namespace-function.cpp
+++ /dev/null
@@ -1,31 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-// CHECK: Symbols:
-// CHECK-DAG:  _ZN3qux3barEii: { Type: Func }
-// CHECK-DAG:  _ZN3baz3addIiEET_S1_S1_: { Type: Func }
-// CHECK-DAG:  _Z4fbarff: { Type: Func }
-// CHECK-DAG:  _ZN3baz3addIfEET_S1_S1_: { Type: Func }
-
-// Same symbols just different order.
-// CHECK-SYMBOLS-DAG:  _Z4fbarff
-// CHECK-SYMBOLS-DAG:  _ZN3baz3addIfEET_S1_S1_
-// CHECK-SYMBOLS-DAG:  _ZN3baz3addIiEET_S1_S1_
-// CHECK-SYMBOLS-DAG:  _ZN3qux3barEii
-
-namespace baz {
-template <typename T>
-T add(T a, T b) {
-  return a + b;
-}
-} // namespace baz
-
-namespace qux {
-int bar(int a, int b) { return baz::add<int>(a, b); }
-} // namespace qux
-
-float fbar(float a, float b) { return baz::add<float>(a, b); }
diff --git a/clang/test/InterfaceStubs/virtual.cpp b/clang/test/InterfaceStubs/virtual.cpp
deleted file mode 100644
index b861b7e802a..00000000000
--- a/clang/test/InterfaceStubs/virtual.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-TAPI %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck -check-prefix=CHECK-TAPI2 %s
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | \
-// RUN: llvm-readelf -s - 2>&1 | FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-#define HIDDEN  __attribute__((__visibility__(("hidden"))))
-#define DEFAULT __attribute__((__visibility__(("default"))))
-
-// CHECK-TAPI-NOT: _ZNK1Q5func1Ev
-// CHECK-TAPI-NOT: _ZNK1Q5func2Ev
-// CHECK-SYMBOLS-DAG: NOTYPE  GLOBAL HIDDEN   {{.*}} _ZNK1Q5func1Ev
-// CHECK-SYMBOLS-DAG: NOTYPE  GLOBAL DEFAULT  {{.*}} _ZNK1Q5func2Ev
-struct Q {
-  virtual HIDDEN  int func1() const;
-  virtual DEFAULT int func2() const;
-} q;
-
-// CHECK-TAPI-NOT: _ZNK1S5func1Ev
-// CHECK-TAPI2-DAG: _ZNK1S5func2Ev
-// CHECK-SYMBOLS-DAG: FUNC    WEAK   HIDDEN   {{.*}} _ZNK1S5func1Ev
-// CHECK-SYMBOLS-DAG: FUNC    WEAK   DEFAULT  {{.*}} _ZNK1S5func2Ev
-struct S {
-  virtual HIDDEN  int func1() const { return 42; }
-  virtual DEFAULT int func2() const { return 42; }
-} s;
-
-// CHECK-TAPI-NOT: _ZNK1R5func1Ev
-// CHECK-TAPI-NOT: _ZNK1R5func2Ev
-// CHECK-SYMBOLS-NOT: _ZNK1R5func1Ev
-// CHECK-SYMBOLS-NOT: _ZNK1R5func2Ev
-struct R {
-  virtual HIDDEN  int func1() const = 0;
-  virtual DEFAULT int func2() const = 0;
-};
-
-int a = q.func1() + q.func2();
-
diff --git a/clang/test/InterfaceStubs/visibility.cpp b/clang/test/InterfaceStubs/visibility.cpp
deleted file mode 100644
index 87ea7ea7bd5..00000000000
--- a/clang/test/InterfaceStubs/visibility.cpp
+++ /dev/null
@@ -1,45 +0,0 @@
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 -fvisibility=hidden \
-// RUN: %s | FileCheck --check-prefix=CHECK-CMD-HIDDEN %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 -fvisibility=hidden \
-// RUN: %s | FileCheck --check-prefix=CHECK-CMD-HIDDEN %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck --check-prefix=CHECK-CMD %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 %s | \
-// RUN: FileCheck --check-prefix=CHECK-CMD %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck --check-prefix=CHECK-CMD2 %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 %s | \
-// RUN: FileCheck --check-prefix=CHECK-CMD2 %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | llvm-readelf -s - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-// Always Be Hidden:
-// CHECK-CMD-HIDDEN-NOT: _Z6hiddenv
-// CHECK-CMD2-NOT: _Z6hiddenv
-__attribute__((visibility("hidden"))) void hidden() {}
-
-// Always Be Visible:
-// CHECK-CMD-HIDDEN: _Z9nothiddenv
-// CHECK-CMD-DAG: _Z9nothiddenv
-__attribute__((visibility("default"))) void nothidden() {}
-
-// Do Whatever -fvisibility says:
-// CHECK-CMD-HIDDEN-NOT: _Z10cmdVisiblev
-// CHECK-CMD-DAG: _Z10cmdVisiblev
-void cmdVisible() {}
-
-// CHECK-SYMBOLS-DAG: DEFAULT    {{.*}} _Z10cmdVisiblev
-// CHECK-SYMBOLS-DAG: HIDDEN     {{.*}} _Z6hiddenv
-// CHECK-SYMBOLS-DAG: DEFAULT    {{.*}} _Z9nothiddenv
diff --git a/clang/test/InterfaceStubs/weak.cpp b/clang/test/InterfaceStubs/weak.cpp
deleted file mode 100644
index e089225b5d6..00000000000
--- a/clang/test/InterfaceStubs/weak.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-// RUN: %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-tapi-elf-v1 %s | \
-// RUN: FileCheck %s
-
-// RUN: %clang -target x86_64-linux-gnu -o - -emit-interface-stubs \
-// RUN: -interface-stub-version=experimental-yaml-elf-v1 %s | \
-// RUN: FileCheck --check-prefix=CHECK-YAML %s
-
-// RUN: %clang -target x86_64-unknown-linux-gnu -o - -c %s | llvm-nm - 2>&1 | \
-// RUN: FileCheck -check-prefix=CHECK-SYMBOLS %s
-
-// CHECK: Symbols:
-// CHECK-DAG:  _Z8weakFuncv: { Type: Func, Weak: true }
-// CHECK-DAG:  _Z10strongFuncv: { Type: Func }
-
-// CHECK-YAML: Symbols:
-// CHECK-YAML-DAG:   - Name:            _Z8weakFuncv
-// CHECK-YAML-DAG:     Type:            STT_FUNC
-// CHECK-YAML-DAG:     Binding:         STB_WEAK
-// CHECK-YAML-DAG:   - Name:            _Z10strongFuncv
-// CHECK-YAML-DAG:     Type:            STT_FUNC
-// CHECK-YAML-DAG:     Binding:         STB_GLOBAL
-
-// CHECK-SYMBOLS-DAG: _Z10strongFuncv
-// CHECK-SYMBOLS-DAG: _Z8weakFuncv
-__attribute__((weak)) void weakFunc() {}
-int strongFunc() { return 42; }