r318669 - For Linux/gnu compatibility, preinclude <stdc-predef.h> if the file is available

Erich Keane via cfe-commits cfe-commits at lists.llvm.org
Mon Nov 20 09:57:42 PST 2017


Author: erichkeane
Date: Mon Nov 20 09:57:42 2017
New Revision: 318669

URL: http://llvm.org/viewvc/llvm-project?rev=318669&view=rev
Log:
For Linux/gnu compatibility, preinclude <stdc-predef.h> if the file is available

As reported in llvm bugzilla 32377.
Here’s a patch to add preinclude of stdc-predef.h.

The gcc documentation says “On GNU/Linux, <stdc-predef.h> is pre-included.” 
See https://gcc.gnu.org/gcc-4.8/porting_to.html;

The preinclude is inhibited with –ffreestanding.

Basically I fixed the failing test cases by adding –ffreestanding which inhibits
this behavior.

I fixed all the failing tests, including some in extra/test, there's a separate
patch for that which is linked here

Patch By: mibintc

Differential Revision: https://reviews.llvm.org/D34158

Modified:
    cfe/trunk/include/clang/Driver/CC1Options.td
    cfe/trunk/include/clang/Lex/PreprocessorOptions.h
    cfe/trunk/lib/Driver/Job.cpp
    cfe/trunk/lib/Driver/ToolChains/Linux.cpp
    cfe/trunk/lib/Driver/ToolChains/Linux.h
    cfe/trunk/lib/Frontend/CompilerInvocation.cpp
    cfe/trunk/lib/Frontend/InitPreprocessor.cpp
    cfe/trunk/test/Driver/crash-report-header.h
    cfe/trunk/test/Driver/crash-report-spaces.c
    cfe/trunk/test/Driver/crash-report.c
    cfe/trunk/test/Driver/rewrite-map-in-diagnostics.c
    cfe/trunk/test/Index/IBOutletCollection.m
    cfe/trunk/test/Index/annotate-macro-args.m
    cfe/trunk/test/Index/annotate-tokens-pp.c
    cfe/trunk/test/Index/annotate-tokens.c
    cfe/trunk/test/Index/c-index-getCursor-test.m
    cfe/trunk/test/Index/get-cursor-macro-args.m
    cfe/trunk/test/Index/get-cursor.cpp
    cfe/trunk/test/Preprocessor/ignore-pragmas.c
    cfe/trunk/unittests/Tooling/TestVisitor.h

Modified: cfe/trunk/include/clang/Driver/CC1Options.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/CC1Options.td?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/CC1Options.td (original)
+++ cfe/trunk/include/clang/Driver/CC1Options.td Mon Nov 20 09:57:42 2017
@@ -769,6 +769,8 @@ def token_cache : Separate<["-"], "token
   HelpText<"Use specified token cache file">;
 def detailed_preprocessing_record : Flag<["-"], "detailed-preprocessing-record">,
   HelpText<"include a detailed record of preprocessing actions">;
+def fsystem_include_if_exists : Separate<["-"], "fsystem-include-if-exists">, MetaVarName<"<file>">,
+  HelpText<"Include system file before parsing if file exists">;
 
 //===----------------------------------------------------------------------===//
 // OpenCL Options

Modified: cfe/trunk/include/clang/Lex/PreprocessorOptions.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/PreprocessorOptions.h?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/include/clang/Lex/PreprocessorOptions.h (original)
+++ cfe/trunk/include/clang/Lex/PreprocessorOptions.h Mon Nov 20 09:57:42 2017
@@ -60,6 +60,9 @@ public:
   /// \brief Headers that will be converted to chained PCHs in memory.
   std::vector<std::string> ChainedIncludes;
 
+  /// \brief System Headers that are pre-included if they exist.
+  std::vector<std::string> FSystemIncludeIfExists;
+
   /// \brief When true, disables most of the normal validation performed on
   /// precompiled headers.
   bool DisablePCHValidation;
@@ -190,6 +193,7 @@ public:
     DumpDeserializedPCHDecls = false;
     ImplicitPCHInclude.clear();
     ImplicitPTHInclude.clear();
+    FSystemIncludeIfExists.clear();
     TokenCache.clear();
     SingleFileParseMode = false;
     LexEditorPlaceholders = true;

Modified: cfe/trunk/lib/Driver/Job.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/Job.cpp?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/Job.cpp (original)
+++ cfe/trunk/lib/Driver/Job.cpp Mon Nov 20 09:57:42 2017
@@ -64,7 +64,7 @@ static bool skipArgs(const char *Flag, b
     .Cases("-internal-externc-isystem", "-iprefix", true)
     .Cases("-iwithprefixbefore", "-isystem", "-iquote", true)
     .Cases("-isysroot", "-I", "-F", "-resource-dir", true)
-    .Cases("-iframework", "-include-pch", true)
+    .Cases("-iframework", "-include-pch", "-fsystem-include-if-exists", true)
     .Default(false);
   if (IsInclude)
     return HaveCrashVFS ? false : true;

Modified: cfe/trunk/lib/Driver/ToolChains/Linux.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Linux.cpp?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Linux.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Linux.cpp Mon Nov 20 09:57:42 2017
@@ -710,6 +710,8 @@ void Linux::AddClangSystemIncludeArgs(co
   addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/include");
 
   addExternCSystemInclude(DriverArgs, CC1Args, SysRoot + "/usr/include");
+
+  AddGnuIncludeArgs(DriverArgs, CC1Args);
 }
 
 static std::string DetectLibcxxIncludePath(StringRef base) {
@@ -748,6 +750,17 @@ std::string Linux::findLibCxxIncludePath
   return "";
 }
 
+void Linux::AddGnuIncludeArgs(const llvm::opt::ArgList &DriverArgs,
+                              llvm::opt::ArgStringList &CC1Args) const {
+  if (!DriverArgs.hasArg(options::OPT_ffreestanding)) {
+    // For gcc compatibility, clang will preinclude <stdc-predef.h>
+    // -ffreestanding suppresses this behavior.
+    CC1Args.push_back("-fsystem-include-if-exists");
+    CC1Args.push_back("stdc-predef.h");
+  }
+}
+
+
 void Linux::addLibStdCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,
                                      llvm::opt::ArgStringList &CC1Args) const {
   // We need a detected GCC installation on Linux to provide libstdc++'s

Modified: cfe/trunk/lib/Driver/ToolChains/Linux.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Linux.h?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Linux.h (original)
+++ cfe/trunk/lib/Driver/ToolChains/Linux.h Mon Nov 20 09:57:42 2017
@@ -31,6 +31,8 @@ public:
   void addLibStdCxxIncludePaths(
       const llvm::opt::ArgList &DriverArgs,
       llvm::opt::ArgStringList &CC1Args) const override;
+  void AddGnuIncludeArgs(const llvm::opt::ArgList &DriverArgs,
+                          llvm::opt::ArgStringList &CC1Args) const;
   void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs,
                           llvm::opt::ArgStringList &CC1Args) const override;
   void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs,

Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Mon Nov 20 09:57:42 2017
@@ -2594,6 +2594,10 @@ static void ParsePreprocessorArgs(Prepro
   for (const Arg *A : Args.filtered(OPT_chain_include))
     Opts.ChainedIncludes.emplace_back(A->getValue());
 
+  // Add the ordered list of -fsystem-include-if-exists.
+  for (const Arg *A : Args.filtered(OPT_fsystem_include_if_exists))
+    Opts.FSystemIncludeIfExists.emplace_back(A->getValue());
+
   for (const Arg *A : Args.filtered(OPT_remap_file)) {
     std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
 

Modified: cfe/trunk/lib/Frontend/InitPreprocessor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/InitPreprocessor.cpp?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/InitPreprocessor.cpp (original)
+++ cfe/trunk/lib/Frontend/InitPreprocessor.cpp Mon Nov 20 09:57:42 2017
@@ -70,6 +70,15 @@ static void AddImplicitInclude(MacroBuil
   Builder.append(Twine("#include \"") + File + "\"");
 }
 
+/// AddImplicitSystemIncludeIfExists - Add an implicit system \#include of the 
+/// specified file to the predefines buffer: precheck with __has_include.
+static void AddImplicitSystemIncludeIfExists(MacroBuilder &Builder, 
+                                             StringRef File) {
+  Builder.append(Twine("#if __has_include( <") + File + ">)");
+  Builder.append(Twine("#include <") + File + ">");
+  Builder.append(Twine("#endif"));
+}
+
 static void AddImplicitIncludeMacros(MacroBuilder &Builder, StringRef File) {
   Builder.append(Twine("#__include_macros \"") + File + "\"");
   // Marker token to stop the __include_macros fetch loop.
@@ -1110,6 +1119,13 @@ void clang::InitializePreprocessor(
   // Exit the command line and go back to <built-in> (2 is LC_LEAVE).
   if (!PP.getLangOpts().AsmPreprocessor)
     Builder.append("# 1 \"<built-in>\" 2");
+  
+  // Process -fsystem-include-if-exists directives.
+  for (unsigned i = 0, 
+       e = InitOpts.FSystemIncludeIfExists.size(); i != e; ++i) {
+    const std::string &Path = InitOpts.FSystemIncludeIfExists[i];
+    AddImplicitSystemIncludeIfExists(Builder, Path);
+  }
 
   // If -imacros are specified, include them now.  These are processed before
   // any -include directives.

Modified: cfe/trunk/test/Driver/crash-report-header.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/crash-report-header.h?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Driver/crash-report-header.h (original)
+++ cfe/trunk/test/Driver/crash-report-header.h Mon Nov 20 09:57:42 2017
@@ -1,6 +1,6 @@
 // RUN: rm -rf %t
 // RUN: mkdir %t
-// RUN: not env TMPDIR="%t" TEMP="%t" TMP="%t" RC_DEBUG_OPTIONS=1 %clang -fsyntax-only %s 2>&1 | FileCheck %s
+// RUN: not env TMPDIR="%t" TEMP="%t" TMP="%t" RC_DEBUG_OPTIONS=1 %clang -ffreestanding -fsyntax-only %s 2>&1 | FileCheck %s
 // RUN: cat %t/crash-report-header-*.h | FileCheck --check-prefix=CHECKSRC "%s"
 // RUN: cat %t/crash-report-header-*.sh | FileCheck --check-prefix=CHECKSH "%s"
 // REQUIRES: crash-recovery

Modified: cfe/trunk/test/Driver/crash-report-spaces.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/crash-report-spaces.c?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Driver/crash-report-spaces.c (original)
+++ cfe/trunk/test/Driver/crash-report-spaces.c Mon Nov 20 09:57:42 2017
@@ -1,7 +1,7 @@
 // RUN: rm -rf "%t"
 // RUN: mkdir "%t"
 // RUN: cp "%s" "%t/crash report spaces.c"
-// RUN: not env TMPDIR="%t" TEMP="%t" TMP="%t" RC_DEBUG_OPTIONS=1 %clang -fsyntax-only "%t/crash report spaces.c" 2>&1 | FileCheck "%s"
+// RUN: not env TMPDIR="%t" TEMP="%t" TMP="%t" RC_DEBUG_OPTIONS=1 %clang -ffreestanding -fsyntax-only "%t/crash report spaces.c" 2>&1 | FileCheck "%s"
 // RUN: cat "%t/crash report spaces"-*.c | FileCheck --check-prefix=CHECKSRC "%s"
 // RUN: cat "%t/crash report spaces"-*.sh | FileCheck --check-prefix=CHECKSH "%s"
 // REQUIRES: crash-recovery

Modified: cfe/trunk/test/Driver/crash-report.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/crash-report.c?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Driver/crash-report.c (original)
+++ cfe/trunk/test/Driver/crash-report.c Mon Nov 20 09:57:42 2017
@@ -2,7 +2,7 @@
 // RUN: mkdir %t
 // RUN: not env TMPDIR=%t TEMP=%t TMP=%t RC_DEBUG_OPTIONS=1              \
 // RUN:  CC_PRINT_HEADERS=1 CC_LOG_DIAGNOSTICS=1                         \
-// RUN:  %clang -fsyntax-only %s                                         \
+// RUN:  %clang -fsyntax-only -ffreestanding %s                          \
 // RUN:  -F/tmp/ -I /tmp/ -idirafter /tmp/ -iquote /tmp/ -isystem /tmp/  \
 // RUN:  -iprefix /the/prefix -iwithprefix /tmp -iwithprefixbefore /tmp/ \
 // RUN:  -Xclang -internal-isystem -Xclang /tmp/                         \
@@ -42,5 +42,6 @@ FOO
 // CHECKSH-NOT: "-iwithprefixbefore" "/tmp/"
 // CHECKSH-NOT: "-internal-isystem" "/tmp/"
 // CHECKSH-NOT: "-internal-externc-isystem" "/tmp/"
+// CHECKSH-NOT: "-fsystem-include-if-exists" "/tmp/"
 // CHECKSH-NOT: "-dwarf-debug-flags"
 // CHECKSH: "crash-report-{{[^ ]*}}.c"

Modified: cfe/trunk/test/Driver/rewrite-map-in-diagnostics.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/rewrite-map-in-diagnostics.c?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Driver/rewrite-map-in-diagnostics.c (original)
+++ cfe/trunk/test/Driver/rewrite-map-in-diagnostics.c Mon Nov 20 09:57:42 2017
@@ -1,7 +1,7 @@
 // RUN: rm -rf "%t"
 // RUN: mkdir -p "%t"
 // RUN: not env TMPDIR="%t" TEMP="%t" TMP="%t" RC_DEBUG_OPTION=1 \
-// RUN:     %clang -fsyntax-only -frewrite-map-file %p/Inputs/rewrite.map %s 2>&1 \
+// RUN:     %clang -ffreestanding -fsyntax-only -frewrite-map-file %p/Inputs/rewrite.map %s 2>&1 \
 // RUN:   | FileCheck %s
 
 #pragma clang __debug parser_crash

Modified: cfe/trunk/test/Index/IBOutletCollection.m
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/IBOutletCollection.m?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/IBOutletCollection.m (original)
+++ cfe/trunk/test/Index/IBOutletCollection.m Mon Nov 20 09:57:42 2017
@@ -5,10 +5,10 @@
 }
 @end
 
-// RUN: c-index-test -cursor-at=%s:4:24 %s | FileCheck -check-prefix=CHECK-CURSOR %s
+// RUN: c-index-test -cursor-at=%s:4:24 -ffreestanding %s | FileCheck -check-prefix=CHECK-CURSOR %s
 // CHECK-CURSOR: ObjCClassRef=Test:3:12
 
-// RUN: c-index-test -test-annotate-tokens=%s:4:1:5:1 %s | FileCheck -check-prefix=CHECK-TOK %s
+// RUN: c-index-test -test-annotate-tokens=%s:4:1:5:1 -ffreestanding %s | FileCheck -check-prefix=CHECK-TOK %s
 // CHECK-TOK: Identifier: "IBOutletCollection" [4:3 - 4:21] macro expansion=IBOutletCollection:1:9
 // FIXME: The following token should belong to the macro expansion cursor.
 // CHECK-TOK: Punctuation: "(" [4:21 - 4:22] attribute(iboutletcollection)= [IBOutletCollection=ObjCInterface]

Modified: cfe/trunk/test/Index/annotate-macro-args.m
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/annotate-macro-args.m?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/annotate-macro-args.m (original)
+++ cfe/trunk/test/Index/annotate-macro-args.m Mon Nov 20 09:57:42 2017
@@ -1,11 +1,11 @@
 // Test without PCH
-// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:9:1:10:1 %s -include %S/annotate-macro-args.h | FileCheck -check-prefix=CHECK1 %s
-// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:15:1:16:1 %s -include %S/annotate-macro-args.h | FileCheck -check-prefix=CHECK2 %s
+// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:9:1:10:1 %s -ffreestanding -include %S/annotate-macro-args.h | FileCheck -check-prefix=CHECK1 %s
+// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:15:1:16:1 %s -ffreestanding -include %S/annotate-macro-args.h | FileCheck -check-prefix=CHECK2 %s
 
 // Test with PCH
-// RUN: c-index-test -write-pch %t.pch -x objective-c-header %S/annotate-macro-args.h -Xclang -detailed-preprocessing-record
-// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:9:1:10:1 %s -include-pch %t.pch | FileCheck -check-prefix=CHECK1 %s
-// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:15:1:16:1 %s -include-pch %t.pch | FileCheck -check-prefix=CHECK2 %s
+// RUN: c-index-test -write-pch %t.pch -x objective-c-header %S/annotate-macro-args.h -ffreestanding -Xclang -detailed-preprocessing-record
+// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:9:1:10:1 %s -ffreestanding -include-pch %t.pch | FileCheck -check-prefix=CHECK1 %s
+// RUN: c-index-test -test-annotate-tokens=%S/annotate-macro-args.h:15:1:16:1 %s -ffreestanding -include-pch %t.pch | FileCheck -check-prefix=CHECK2 %s
 
 // CHECK1: Identifier: "MACRO" [9:3 - 9:8] macro expansion=MACRO:6:9
 // CHECK1: Punctuation: "(" [9:8 - 9:9]

Modified: cfe/trunk/test/Index/annotate-tokens-pp.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/annotate-tokens-pp.c?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/annotate-tokens-pp.c (original)
+++ cfe/trunk/test/Index/annotate-tokens-pp.c Mon Nov 20 09:57:42 2017
@@ -42,8 +42,8 @@ struct A
 #endif
 };
 
-// RUN: c-index-test -test-annotate-tokens=%s:2:1:44:1 -I%S/Inputs %s | FileCheck %s
-// RUN: env CINDEXTEST_EDITING=1 c-index-test -test-annotate-tokens=%s:2:1:44:1 -I%S/Inputs %s | FileCheck %s
+// RUN: c-index-test -test-annotate-tokens=%s:2:1:44:1 -I%S/Inputs -ffreestanding %s | FileCheck %s
+// RUN: env CINDEXTEST_EDITING=1 c-index-test -test-annotate-tokens=%s:2:1:44:1 -I%S/Inputs -ffreestanding %s | FileCheck %s
 // CHECK: Punctuation: "#" [2:1 - 2:2] preprocessing directive=
 // CHECK: Identifier: "define" [2:2 - 2:8] preprocessing directive=
 // CHECK: Identifier: "STILL_NOTHING" [2:9 - 2:22] macro definition=STILL_NOTHING

Modified: cfe/trunk/test/Index/annotate-tokens.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/annotate-tokens.c?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/annotate-tokens.c (original)
+++ cfe/trunk/test/Index/annotate-tokens.c Mon Nov 20 09:57:42 2017
@@ -68,7 +68,7 @@ void test() {
   reg.field = 1;
 }
 
-// RUN: c-index-test -test-annotate-tokens=%s:4:1:37:1 %s | FileCheck %s
+// RUN: c-index-test -test-annotate-tokens=%s:4:1:37:1 -ffreestanding %s | FileCheck %s
 // CHECK: Identifier: "T" [4:3 - 4:4] TypeRef=T:1:13
 // CHECK: Punctuation: "*" [4:4 - 4:5] VarDecl=t_ptr:4:6 (Definition)
 // CHECK: Identifier: "t_ptr" [4:6 - 4:11] VarDecl=t_ptr:4:6 (Definition)
@@ -191,10 +191,10 @@ void test() {
 // CHECK: Punctuation: ")" [36:97 - 36:98] FunctionDecl=test:36:63 (unavailable)  (always unavailable: "")
 // CHECK: Punctuation: ";" [36:98 - 36:99]
 
-// RUN: c-index-test -test-annotate-tokens=%s:4:1:165:32 %s | FileCheck %s
-// RUN: c-index-test -test-annotate-tokens=%s:4:1:165:38 %s | FileCheck %s
+// RUN: c-index-test -test-annotate-tokens=%s:4:1:165:32 -ffreestanding %s | FileCheck %s
+// RUN: c-index-test -test-annotate-tokens=%s:4:1:165:38 -ffreestanding %s | FileCheck %s
 
-// RUN: c-index-test -test-annotate-tokens=%s:50:1:55:1 %s | FileCheck %s -check-prefix=CHECK-RANGE1
+// RUN: c-index-test -test-annotate-tokens=%s:50:1:55:1 -ffreestanding %s | FileCheck %s -check-prefix=CHECK-RANGE1
 // CHECK-RANGE1: Keyword: "void" [50:1 - 50:5] FunctionDecl=func1:50:6
 // CHECK-RANGE1: Identifier: "func1" [50:6 - 50:11] FunctionDecl=func1:50:6
 // CHECK-RANGE1: Punctuation: "(" [50:11 - 50:12] FunctionDecl=func1:50:6
@@ -216,7 +216,7 @@ void test() {
 // CHECK-RANGE1: Literal: "1" [54:10 - 54:11] IntegerLiteral=
 // CHECK-RANGE1: Punctuation: "," [54:11 - 54:12] InitListExpr=
 
-// RUN: c-index-test -test-annotate-tokens=%s:54:1:70:1 %s | FileCheck %s -check-prefix=CHECK-RANGE2
+// RUN: c-index-test -test-annotate-tokens=%s:54:1:70:1 -ffreestanding %s | FileCheck %s -check-prefix=CHECK-RANGE2
 // CHECK-RANGE2: Punctuation: "." [54:5 - 54:6] UnexposedExpr=
 // CHECK-RANGE2: Identifier: "y" [54:6 - 54:7] MemberRef=y:52:1
 // CHECK-RANGE2: Punctuation: "=" [54:8 - 54:9] UnexposedExpr=
@@ -240,6 +240,6 @@ void test() {
 // CHECK-RANGE2: Punctuation: "." [68:6 - 68:7] MemberRefExpr=field:62:9
 // CHECK-RANGE2: Identifier: "field" [68:7 - 68:12] MemberRefExpr=field:62:9
 
-// RUN: c-index-test -test-annotate-tokens=%s:68:15:68:16 %s | FileCheck %s -check-prefix=CHECK-RANGE3
+// RUN: c-index-test -test-annotate-tokens=%s:68:15:68:16 -ffreestanding %s | FileCheck %s -check-prefix=CHECK-RANGE3
 // CHECK-RANGE3: Literal: "1" [68:15 - 68:16] IntegerLiteral=
 // CHECK-RANGE3-NOT: Punctuation: ";"

Modified: cfe/trunk/test/Index/c-index-getCursor-test.m
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/c-index-getCursor-test.m?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/c-index-getCursor-test.m (original)
+++ cfe/trunk/test/Index/c-index-getCursor-test.m Mon Nov 20 09:57:42 2017
@@ -1,5 +1,5 @@
-// RUN: c-index-test -write-pch %t.ast -arch x86_64 -mmacosx-version-min=10.6 -fblocks -x objective-c %s
-// RUN: c-index-test -test-file-scan %t.ast %s > %t 2>&1 && FileCheck --input-file=%t %s
+// RUN: c-index-test -write-pch %t.ast -arch x86_64 -mmacosx-version-min=10.6 -fblocks -x objective-c %s -ffreestanding
+// RUN: c-index-test -test-file-scan %t.ast %s -ffreestanding > %t 2>&1 && FileCheck --input-file=%t %s
 @interface Foo 
 {
 }

Modified: cfe/trunk/test/Index/get-cursor-macro-args.m
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/get-cursor-macro-args.m?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/get-cursor-macro-args.m (original)
+++ cfe/trunk/test/Index/get-cursor-macro-args.m Mon Nov 20 09:57:42 2017
@@ -5,17 +5,17 @@
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:9:22 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:15:12 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:15:20 \
-// RUN:       %s -include %S/get-cursor-macro-args.h | FileCheck %s
+// RUN:       %s -ffreestanding -include %S/get-cursor-macro-args.h | FileCheck %s
 
 // Test with PCH
-// RUN: c-index-test -write-pch %t.pch -x objective-c-header %S/get-cursor-macro-args.h
+// RUN: c-index-test -write-pch %t.pch -x objective-c-header %S/get-cursor-macro-args.h -ffreestanding
 // RUN: c-index-test -cursor-at=%S/get-cursor-macro-args.h:9:12 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:9:21 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:9:9 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:9:22 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:15:12 \
 // RUN:              -cursor-at=%S/get-cursor-macro-args.h:15:20 \
-// RUN:       %s -include-pch %t.pch | FileCheck %s
+// RUN:       %s -ffreestanding -include-pch %t.pch | FileCheck %s
 
 // CHECK:      ObjCClassRef=MyClass:1:12
 // CHECK-NEXT: ObjCMessageExpr=meth:2:8

Modified: cfe/trunk/test/Index/get-cursor.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Index/get-cursor.cpp?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Index/get-cursor.cpp (original)
+++ cfe/trunk/test/Index/get-cursor.cpp Mon Nov 20 09:57:42 2017
@@ -157,71 +157,71 @@ struct Z {
     EnumType e = Enumerator;
 };
 
-// RUN: c-index-test -cursor-at=%s:6:4 %s | FileCheck -check-prefix=CHECK-COMPLETION-1 %s
+// RUN: c-index-test -cursor-at=%s:6:4 -ffreestanding %s | FileCheck -check-prefix=CHECK-COMPLETION-1 %s
 // CHECK-COMPLETION-1: CXXConstructor=X:6:3
 // CHECK-COMPLETION-1-NEXT: Completion string: {TypedText X}{LeftParen (}{Placeholder int}{Comma , }{Placeholder int}{RightParen )}
 
-// RUN: c-index-test -cursor-at=%s:31:16 %s | FileCheck -check-prefix=CHECK-COMPLETION-2 %s
+// RUN: c-index-test -cursor-at=%s:31:16 -ffreestanding %s | FileCheck -check-prefix=CHECK-COMPLETION-2 %s
 // CHECK-COMPLETION-2: CXXMethod=getAnotherX:31:5 (Definition)
 // CHECK-COMPLETION-2-NEXT: Completion string: {ResultType X}{TypedText getAnotherX}{LeftParen (}{RightParen )}
 
-// RUN: c-index-test -cursor-at=%s:12:20 %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
-// RUN: c-index-test -cursor-at=%s:13:21 %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
-// RUN: c-index-test -cursor-at=%s:13:28 %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
-// RUN: c-index-test -cursor-at=%s:14:23 %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
+// RUN: c-index-test -cursor-at=%s:12:20 -ffreestanding %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
+// RUN: c-index-test -cursor-at=%s:13:21 -ffreestanding %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
+// RUN: c-index-test -cursor-at=%s:13:28 -ffreestanding %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
+// RUN: c-index-test -cursor-at=%s:14:23 -ffreestanding %s | FileCheck -check-prefix=CHECK-VALUE-REF %s
 // CHECK-VALUE-REF: DeclRefExpr=value:10:12
 
-// RUN: c-index-test -cursor-at=%s:12:18 %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR1 %s
-// RUN: c-index-test -cursor-at=%s:13:18 %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR2 %s
-// RUN: c-index-test -cursor-at=%s:14:19 %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR1 %s
-// RUN: c-index-test -cursor-at=%s:17:10 %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR3 %s
+// RUN: c-index-test -cursor-at=%s:12:18 -ffreestanding %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR1 %s
+// RUN: c-index-test -cursor-at=%s:13:18 -ffreestanding %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR2 %s
+// RUN: c-index-test -cursor-at=%s:14:19 -ffreestanding %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR1 %s
+// RUN: c-index-test -cursor-at=%s:17:10 -ffreestanding %s | FileCheck -check-prefix=CHECK-CONSTRUCTOR3 %s
 // CHECK-TYPE-REF: TypeRef=struct X:3:8
 // CHECK-CONSTRUCTOR1: CallExpr=X:5:3
 // CHECK-CONSTRUCTOR2: CallExpr=X:6:3
 // CHECK-CONSTRUCTOR3: CallExpr=X:4:3
 
-// RUN: c-index-test -cursor-at=%s:23:3 %s | FileCheck -check-prefix=CHECK-RETTYPE %s
-// RUN: c-index-test -cursor-at=%s:26:1 %s | FileCheck -check-prefix=CHECK-RETTYPE %s
+// RUN: c-index-test -cursor-at=%s:23:3 -ffreestanding %s | FileCheck -check-prefix=CHECK-RETTYPE %s
+// RUN: c-index-test -cursor-at=%s:26:1 -ffreestanding %s | FileCheck -check-prefix=CHECK-RETTYPE %s
 // CHECK-RETTYPE: TypeRef=struct X:3:8
 
-// RUN: c-index-test -cursor-at=%s:23:7 %s | FileCheck -check-prefix=CHECK-MEMFUNC-DECL %s
+// RUN: c-index-test -cursor-at=%s:23:7 -ffreestanding %s | FileCheck -check-prefix=CHECK-MEMFUNC-DECL %s
 // CHECK-MEMFUNC-DECL: CXXMethod=getX:23:5
-// RUN: c-index-test -cursor-at=%s:26:7 %s | FileCheck -check-prefix=CHECK-MEMFUNC-DEF %s
+// RUN: c-index-test -cursor-at=%s:26:7 -ffreestanding %s | FileCheck -check-prefix=CHECK-MEMFUNC-DEF %s
 // CHECK-MEMFUNC-DEF: CXXMethod=getX:26:6
 
-// RUN: c-index-test -cursor-at=%s:26:3 %s | FileCheck -check-prefix=CHECK-TYPEREF-Y %s
+// RUN: c-index-test -cursor-at=%s:26:3 -ffreestanding %s | FileCheck -check-prefix=CHECK-TYPEREF-Y %s
 // CHECK-TYPEREF-Y: TypeRef=struct Y:20:8
 
-// RUN: c-index-test -cursor-at=%s:27:10 %s | FileCheck -check-prefix=CHECK-IMPLICIT-MEMREF %s
-// RUN: c-index-test -cursor-at=%s:31:28 %s | FileCheck -check-prefix=CHECK-IMPLICIT-MEMREF %s
+// RUN: c-index-test -cursor-at=%s:27:10 -ffreestanding %s | FileCheck -check-prefix=CHECK-IMPLICIT-MEMREF %s
+// RUN: c-index-test -cursor-at=%s:31:28 -ffreestanding %s | FileCheck -check-prefix=CHECK-IMPLICIT-MEMREF %s
 // CHECK-IMPLICIT-MEMREF: MemberRefExpr=member:21:7
 
-// RUN: c-index-test -cursor-at=%s:35:5 %s | FileCheck -check-prefix=CHECK-DECL %s
+// RUN: c-index-test -cursor-at=%s:35:5 -ffreestanding %s | FileCheck -check-prefix=CHECK-DECL %s
 // CHECK-DECL: VarDecl=foo:35:5
 
-// RUN: c-index-test -cursor-at=%s:21:3 %s | FileCheck -check-prefix=CHECK-MEMBER %s
+// RUN: c-index-test -cursor-at=%s:21:3 -ffreestanding %s | FileCheck -check-prefix=CHECK-MEMBER %s
 // CHECK-MEMBER: FieldDecl=member:21:7 (Definition)
 // CHECK-MEMBER-NEXT: Completion string: {ResultType int}{TypedText member}
 
-// RUN: c-index-test -cursor-at=%s:38:12 -cursor-at=%s:39:5 %s | FileCheck -check-prefix=CHECK-CXXCATCH %s
+// RUN: c-index-test -cursor-at=%s:38:12 -cursor-at=%s:39:5 -ffreestanding %s | FileCheck -check-prefix=CHECK-CXXCATCH %s
 // CHECK-CXXCATCH: TypeRef=struct X:3:8
 // CHECK-CXXCATCH-NEXT: TypeRef=struct X:3:8
 
-// RUN: c-index-test -test-load-source-usrs local %s | FileCheck -check-prefix=CHECK-USR %s
+// RUN: c-index-test -test-load-source-usrs local -ffreestanding %s | FileCheck -check-prefix=CHECK-USR %s
 // CHECK-USR: get-cursor.cpp c:get-cursor.cpp at 472@F at test#@e Extent=[38:12 - 38:15]
 // CHECK-USR: get-cursor.cpp c:get-cursor.cpp at 483@F at test#@x Extent=[39:5 - 39:8]
 
-// RUN: c-index-test -cursor-at=%s:45:9 %s | FileCheck -check-prefix=CHECK-LOCALCLASS %s
+// RUN: c-index-test -cursor-at=%s:45:9 -ffreestanding %s | FileCheck -check-prefix=CHECK-LOCALCLASS %s
 // CHECK-LOCALCLASS: 45:9 DeclRefExpr=x:44:11 Extent=[45:9 - 45:10] Spelling=x ([45:9 - 45:10])
 
-// RUN: c-index-test -cursor-at=%s:50:23 -cursor-at=%s:55:23 %s | FileCheck -check-prefix=CHECK-TEMPLPARAM %s
+// RUN: c-index-test -cursor-at=%s:50:23 -cursor-at=%s:55:23 -ffreestanding %s | FileCheck -check-prefix=CHECK-TEMPLPARAM %s
 // CHECK-TEMPLPARAM: 50:23 TypeRef=struct X:3:8 Extent=[50:23 - 50:24] Spelling=struct X ([50:23 - 50:24])
 // CHECK-TEMPLPARAM: 55:23 TypeRef=struct X:3:8 Extent=[55:23 - 55:24] Spelling=struct X ([55:23 - 55:24])
 
-// RUN: c-index-test -cursor-at=%s:66:23 %s | FileCheck -check-prefix=CHECK-TEMPLSPEC %s
+// RUN: c-index-test -cursor-at=%s:66:23 -ffreestanding %s | FileCheck -check-prefix=CHECK-TEMPLSPEC %s
 // CHECK-TEMPLSPEC: 66:23 ClassDecl=TC:66:23 (Definition) [Specialization of TC:59:7] Extent=[66:1 - 66:31] Spelling=TC ([66:23 - 66:25])
 
-// RUN: c-index-test -cursor-at=%s:69:3 -cursor-at=%s:70:11 -cursor-at=%s:73:6 -cursor-at=%s:74:6 -cursor-at=%s:77:8 -cursor-at=%s:78:8 -cursor-at=%s:79:8 -cursor-at=%s:80:8 -cursor-at=%s:81:8 -cursor-at=%s:82:8 -cursor-at=%s:85:6 -cursor-at=%s:86:6 -cursor-at=%s:87:6 -cursor-at=%s:88:6 -cursor-at=%s:91:5 -cursor-at=%s:92:5 -cursor-at=%s:93:5 -cursor-at=%s:94:5 -cursor-at=%s:95:5 -cursor-at=%s:96:5 -cursor-at=%s:97:5 -cursor-at=%s:98:5 -cursor-at=%s:100:5 -cursor-at=%s:101:5 -cursor-at=%s:104:6 -cursor-at=%s:105:6 -cursor-at=%s:106:6 -cursor-at=%s:107:6 -cursor-at=%s:108:6 -cursor-at=%s:109:6 -cursor-at=%s:110:6 -cursor-at=%s:111:6 -cursor-at=%s:113:6 -cursor-at=%s:114:6 -cursor-at=%s:117:8 -cursor-at=%s:118:8 -cursor-at=%s:120:8 -cursor-at=%s:121:8 -cursor-at=%s:122:8 -cursor-at=%s:123:8 -cursor-at=%s:124:8 -cursor-at=%s:125:8 -cursor-at=%s:128:6 -cursor-at=%s:129:6 -cursor-at=%s:130:6 -cursor-at=%s:132:3 -cursor-at=%s:146:15 -cursor-at=%s:149:6 -cursor-at=%s:150:25 -cursor-at=%s:151:6 -cursor-at=%s:152:6 -cursor-at=%s:153:6 -std=c++11 %s | FileCheck -check-prefix=CHECK-SPELLING %s
+// RUN: c-index-test -cursor-at=%s:69:3 -cursor-at=%s:70:11 -cursor-at=%s:73:6 -cursor-at=%s:74:6 -cursor-at=%s:77:8 -cursor-at=%s:78:8 -cursor-at=%s:79:8 -cursor-at=%s:80:8 -cursor-at=%s:81:8 -cursor-at=%s:82:8 -cursor-at=%s:85:6 -cursor-at=%s:86:6 -cursor-at=%s:87:6 -cursor-at=%s:88:6 -cursor-at=%s:91:5 -cursor-at=%s:92:5 -cursor-at=%s:93:5 -cursor-at=%s:94:5 -cursor-at=%s:95:5 -cursor-at=%s:96:5 -cursor-at=%s:97:5 -cursor-at=%s:98:5 -cursor-at=%s:100:5 -cursor-at=%s:101:5 -cursor-at=%s:104:6 -cursor-at=%s:105:6 -cursor-at=%s:106:6 -cursor-at=%s:107:6 -cursor-at=%s:108:6 -cursor-at=%s:109:6 -cursor-at=%s:110:6 -cursor-at=%s:111:6 -cursor-at=%s:113:6 -cursor-at=%s:114:6 -cursor-at=%s:117:8 -cursor-at=%s:118:8 -cursor-at=%s:120:8 -cursor-at=%s:121:8 -cursor-at=%s:122:8 -cursor-at=%s:123:8 -cursor-at=%s:124:8 -cursor-at=%s:125:8 -cursor-at=%s:128:6 -cursor-at=%s:129:6 -cursor-at=%s:130:6 -cursor-at=%s:132:3 -cursor-at=%s:146:15 -cursor-at=%s:149:6 -cursor-at=%s:150:25 -cursor-at=%s:151:6 -cursor-at=%s:152:6 -cursor-at=%s:153:6 -std=c++11 -ffreestanding %s | FileCheck -check-prefix=CHECK-SPELLING %s
 // CHECK-SPELLING: 69:3 CXXConstructor=A:69:3 (default constructor) Extent=[69:3 - 69:6] Spelling=A ([69:3 - 69:4])
 // CHECK-SPELLING: 70:11 CXXDestructor=~A:70:11 (virtual) Extent=[70:3 - 70:15] Spelling=~A ([70:11 - 70:13])
 // CHECK-SPELLING: 73:6 CXXMethod=operator=:73:6 Extent=[73:3 - 73:25] Spelling=operator= ([73:6 - 73:15])
@@ -275,7 +275,7 @@ struct Z {
 // CHECK-SPELLING: 152:6 FunctionDecl=f_dynamic_noexcept:152:6 (noexcept dynamic) Extent=[152:1 - 152:37] Spelling=f_dynamic_noexcept ([152:6 - 152:24])
 // CHECK-SPELLING: 153:6 FunctionDecl=f_dynamic_noexcept_any:153:6 (noexcept dynamic any) Extent=[153:1 - 153:41] Spelling=f_dynamic_noexcept_any ([153:6 - 153:28])
 
-// RUN: c-index-test -cursor-at=%s:141:13 -cursor-at=%s:141:18 -cursor-at=%s:142:11 -std=c++11 %s | FileCheck -check-prefix=CHECK-FORRANGE %s
+// RUN: c-index-test -cursor-at=%s:141:13 -cursor-at=%s:141:18 -cursor-at=%s:142:11 -std=c++11 -ffreestanding %s | FileCheck -check-prefix=CHECK-FORRANGE %s
 // CHECK-FORRANGE: 141:13 VarDecl=lv:141:13 (Definition) Extent=[141:8 - 141:17] Spelling=lv ([141:13 - 141:15])
 // CHECK-FORRANGE: 141:18 DeclRefExpr=coll:140:20 Extent=[141:18 - 141:22] Spelling=coll ([141:18 - 141:22])
 // CHECK-FORRANGE: 142:11 DeclRefExpr=lv:141:13 Extent=[142:11 - 142:13] Spelling=lv ([142:11 - 142:13])

Modified: cfe/trunk/test/Preprocessor/ignore-pragmas.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/ignore-pragmas.c?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/ignore-pragmas.c (original)
+++ cfe/trunk/test/Preprocessor/ignore-pragmas.c Mon Nov 20 09:57:42 2017
@@ -1,8 +1,8 @@
-// RUN: %clang_cc1 -E %s -Wall -verify
-// RUN: %clang_cc1 -Eonly %s -Wall -verify
-// RUN: %clang -M -Wall %s -Xclang -verify
-// RUN: %clang -E -frewrite-includes %s -Wall -Xclang -verify
-// RUN: %clang -E -dD -dM %s -Wall -Xclang -verify
+// RUN: %clang_cc1 -E %s -Wall -ffreestanding -verify
+// RUN: %clang_cc1 -Eonly %s -Wall -ffreestanding -verify
+// RUN: %clang -M -Wall -ffreestanding %s -Xclang -verify
+// RUN: %clang -E -frewrite-includes %s -Wall -ffreestanding -Xclang -verify
+// RUN: %clang -E -dD -dM %s -Wall -ffreestanding -Xclang -verify
 // expected-no-diagnostics
 
 #pragma GCC visibility push (default)

Modified: cfe/trunk/unittests/Tooling/TestVisitor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/Tooling/TestVisitor.h?rev=318669&r1=318668&r2=318669&view=diff
==============================================================================
--- cfe/trunk/unittests/Tooling/TestVisitor.h (original)
+++ cfe/trunk/unittests/Tooling/TestVisitor.h Mon Nov 20 09:57:42 2017
@@ -52,6 +52,7 @@ public:
   /// \brief Runs the current AST visitor over the given code.
   bool runOver(StringRef Code, Language L = Lang_CXX) {
     std::vector<std::string> Args;
+    Args.push_back("-ffreestanding");
     switch (L) {
       case Lang_C:
         Args.push_back("-x");




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