diff --git a/include/clang/AST/Decl.h b/include/clang/AST/Decl.h
index 88adbeb6e11a6f70b11c6e3cdd901b97024097ba..e00779844c1913ebb42ca093f0b5b1cfa6edebbd 100644
--- a/include/clang/AST/Decl.h
+++ b/include/clang/AST/Decl.h
@@ -3218,7 +3218,7 @@ public:
 ///
 /// An import declaration imports the named module (or submodule). For example:
 /// \code
-///   @__experimental_modules_import std.vector;
+///   @import std.vector;
 /// \endcode
 ///
 /// Import declarations can also be implicitly generated from
diff --git a/include/clang/Basic/IdentifierTable.h b/include/clang/Basic/IdentifierTable.h
index 9ad3f49bde07ade2594e031485d42bbe61b0553e..34e2346820a117360ef5fd23c7e26bfd4f752a75 100644
--- a/include/clang/Basic/IdentifierTable.h
+++ b/include/clang/Basic/IdentifierTable.h
@@ -297,11 +297,11 @@ public:
   }
   
   /// \brief Determine whether this is the contextual keyword
-  /// '__experimental_modules_import'.
+  /// 'import'.
   bool isModulesImport() const { return IsModulesImport; }
   
   /// \brief Set whether this identifier is the contextual keyword 
-  /// '__experimental_modules_import'.
+  /// 'import'.
   void setModulesImport(bool I) {
     IsModulesImport = I;
     if (I)
diff --git a/include/clang/Basic/TokenKinds.def b/include/clang/Basic/TokenKinds.def
index 25e8d5a635c7b48ef76ba3fdeb70cbc22ba771ec..f02ba6438bdf9db9700c19b0a6dc21ec1e2b2f67 100644
--- a/include/clang/Basic/TokenKinds.def
+++ b/include/clang/Basic/TokenKinds.def
@@ -566,7 +566,7 @@ OBJC2_AT_KEYWORD(required)
 OBJC2_AT_KEYWORD(optional)
 OBJC2_AT_KEYWORD(synthesize)
 OBJC2_AT_KEYWORD(dynamic)
-OBJC2_AT_KEYWORD(__experimental_modules_import)
+OBJC2_AT_KEYWORD(import)
 
 // TODO: What to do about context-sensitive keywords like:
 //       bycopy/byref/in/inout/oneway/out?
diff --git a/lib/AST/DeclPrinter.cpp b/lib/AST/DeclPrinter.cpp
index 857a26621b8fc44553d562a324cd277d2a7abeb3..5cef00f187406a058918e664f12c729cf4878f41 100644
--- a/lib/AST/DeclPrinter.cpp
+++ b/lib/AST/DeclPrinter.cpp
@@ -686,7 +686,7 @@ void DeclPrinter::VisitFileScopeAsmDecl(FileScopeAsmDecl *D) {
 }
 
 void DeclPrinter::VisitImportDecl(ImportDecl *D) {
-  Out << "@__experimental_modules_import " << D->getImportedModule()->getFullModuleName()
+  Out << "@import " << D->getImportedModule()->getFullModuleName()
       << ";\n";
 }
 
diff --git a/lib/Basic/IdentifierTable.cpp b/lib/Basic/IdentifierTable.cpp
index 58c33bba8a3a27a21fa86b97b5ecf572209a3592..49cd0ac615a3c399c6c6e5f540c69a05766900f1 100644
--- a/lib/Basic/IdentifierTable.cpp
+++ b/lib/Basic/IdentifierTable.cpp
@@ -82,7 +82,7 @@ IdentifierTable::IdentifierTable(const LangOptions &LangOpts,
       
 
   // Add the '_experimental_modules_import' contextual keyword.
-  get("__experimental_modules_import").setModulesImport(true);
+  get("import").setModulesImport(true);
 }
 
 //===----------------------------------------------------------------------===//
diff --git a/lib/Lex/PPDirectives.cpp b/lib/Lex/PPDirectives.cpp
index 7b5df9c314875a0f5d130bea668f20aa63650fa0..5f95260ea8079cdec391c8935c4dd3893caafc34 100644
--- a/lib/Lex/PPDirectives.cpp
+++ b/lib/Lex/PPDirectives.cpp
@@ -1476,7 +1476,7 @@ void Preprocessor::HandleIncludeDirective(SourceLocation HashLoc,
       Diag(HashLoc, diag::warn_auto_module_import)
         << IncludeKind << PathString 
         << FixItHint::CreateReplacement(ReplaceRange,
-             "@__experimental_modules_import " + PathString.str().str() + ";");
+             "@import " + PathString.str().str() + ";");
     }
     
     // Load the module.
diff --git a/lib/Lex/Preprocessor.cpp b/lib/Lex/Preprocessor.cpp
index 2341c01647d038f37cf85c808754e0e7c5021931..4f0b189c8b060a8d6ba4ab3f5ef3bf8a87712dbf 100644
--- a/lib/Lex/Preprocessor.cpp
+++ b/lib/Lex/Preprocessor.cpp
@@ -631,10 +631,10 @@ void Preprocessor::HandleIdentifier(Token &Identifier) {
   if (II.isExtensionToken() && !DisableMacroExpansion)
     Diag(Identifier, diag::ext_token_used);
   
-  // If this is the '__experimental_modules_import' contextual keyword, note
+  // If this is the 'import' contextual keyword, note
   // that the next token indicates a module name.
   //
-  // Note that we do not treat '__experimental_modules_import' as a contextual
+  // Note that we do not treat 'import' as a contextual
   // keyword when we're in a caching lexer, because caching lexers only get
   // used in contexts where import declarations are disallowed.
   if (II.isModulesImport() && !InMacroArgs && !DisableMacroExpansion &&
diff --git a/lib/Parse/ParseObjc.cpp b/lib/Parse/ParseObjc.cpp
index 84d0b22d4d7d120f2fc8a86267331d56318aa229..3b252d083e765536e7e346396aa949c9993b53c8 100644
--- a/lib/Parse/ParseObjc.cpp
+++ b/lib/Parse/ParseObjc.cpp
@@ -65,7 +65,7 @@ Parser::DeclGroupPtrTy Parser::ParseObjCAtDirectives() {
   case tok::objc_dynamic:
     SingleDecl = ParseObjCPropertyDynamic(AtLoc);
     break;
-  case tok::objc___experimental_modules_import:
+  case tok::objc_import:
     if (getLangOpts().Modules)
       return ParseModuleImport(AtLoc);
       
diff --git a/lib/Parse/Parser.cpp b/lib/Parse/Parser.cpp
index 8f4fa9f3ad9691790445ab8d5de6a497b6902222..f96ed99368c734a4e174455a8b805c8bed5c2e02 100644
--- a/lib/Parse/Parser.cpp
+++ b/lib/Parse/Parser.cpp
@@ -1845,7 +1845,7 @@ void Parser::ParseMicrosoftIfExistsExternalDeclaration() {
 }
 
 Parser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) {
-  assert(Tok.isObjCAtKeyword(tok::objc___experimental_modules_import) && 
+  assert(Tok.isObjCAtKeyword(tok::objc_import) && 
          "Improper start to module import");
   SourceLocation ImportLoc = ConsumeToken();
   
diff --git a/test/Index/annotate-module.m b/test/Index/annotate-module.m
index 3423f2b40d818f28d677419c1947f7acbb1ddd68..ba5b8257efcfdfe562b622ae2e3c4182b1448dae 100644
--- a/test/Index/annotate-module.m
+++ b/test/Index/annotate-module.m
@@ -1,6 +1,6 @@
 
 #include <DependsOnModule/DependsOnModule.h>
-@__experimental_modules_import DependsOnModule;
+@import DependsOnModule;
 int glob;
 
 // RUN: rm -rf %t.cache
@@ -17,9 +17,9 @@ int glob;
 // CHECK-NEXT: Identifier: "h" [2:43 - 2:44] inclusion directive=[[INC_DIR]]
 // CHECK-NEXT: Punctuation: ">" [2:44 - 2:45] inclusion directive=[[INC_DIR]]
 // CHECK-NEXT: Punctuation: "@" [3:1 - 3:2] ModuleImport=DependsOnModule:3:1
-// CHECK-NEXT: Keyword: "__experimental_modules_import" [3:2 - 3:31] ModuleImport=DependsOnModule:3:1
-// CHECK-NEXT: Identifier: "DependsOnModule" [3:32 - 3:47] ModuleImport=DependsOnModule:3:1
-// CHECK-NEXT: Punctuation: ";" [3:47 - 3:48]
+// CHECK-NEXT: Keyword: "import" [3:2 - 3:8] ModuleImport=DependsOnModule:3:1
+// CHECK-NEXT: Identifier: "DependsOnModule" [3:9 - 3:24] ModuleImport=DependsOnModule:3:1
+// CHECK-NEXT: Punctuation: ";" [3:24 - 3:25]
 // CHECK-NEXT: Keyword: "int" [4:1 - 4:4] VarDecl=glob:4:5
 // CHECK-NEXT: Identifier: "glob" [4:5 - 4:9] VarDecl=glob:4:5
 // CHECK-NEXT: Punctuation: ";" [4:9 - 4:10]
diff --git a/test/Index/complete-modules.m b/test/Index/complete-modules.m
index b82430db9dbb79e414359c53b32dfa28121fc4f5..a8737216e2127df4791aa411acb0b5cc9c1f4c11 100644
--- a/test/Index/complete-modules.m
+++ b/test/Index/complete-modules.m
@@ -1,14 +1,14 @@
 // Note: the run lines follow their respective tests, since line/column
 // matter in this test.
 
-@__experimental_modules_import LibA.Extensions;
+@import LibA.Extensions;
 
 // RUN: rm -rf %t
-// RUN: c-index-test -code-completion-at=%s:4:32 -fmodule-cache-path %t -fmodules -F %S/Inputs/Frameworks -I %S/Inputs/Headers %s | FileCheck -check-prefix=CHECK-TOP-LEVEL %s
+// RUN: c-index-test -code-completion-at=%s:4:9 -fmodule-cache-path %t -fmodules -F %S/Inputs/Frameworks -I %S/Inputs/Headers %s | FileCheck -check-prefix=CHECK-TOP-LEVEL %s
 // CHECK-TOP-LEVEL: NotImplemented:{TypedText Framework} (50)
 // CHECK-TOP-LEVEL: NotImplemented:{TypedText LibA} (50)
 // CHECK-TOP-LEVEL: NotImplemented:{TypedText nested} (50)
 
-// RUN: c-index-test -code-completion-at=%s:4:37 -fmodule-cache-path %t -fmodules -F %S/Inputs/Frameworks -I %S/Inputs/Headers %s | FileCheck -check-prefix=CHECK-LIBA %s
+// RUN: c-index-test -code-completion-at=%s:4:14 -fmodule-cache-path %t -fmodules -F %S/Inputs/Frameworks -I %S/Inputs/Headers %s | FileCheck -check-prefix=CHECK-LIBA %s
 // CHECK-LIBA: NotImplemented:{TypedText Extensions} (50)
 
diff --git a/test/Index/crash-recovery-modules.m b/test/Index/crash-recovery-modules.m
index 212923f94be615431159cb1fcecdce674f452358..8d93c1ae06d2409e102ffe2dc77716f25cce0296 100644
--- a/test/Index/crash-recovery-modules.m
+++ b/test/Index/crash-recovery-modules.m
@@ -4,7 +4,7 @@
 // Parse the file, such that building the module will cause Clang to crash.
 // RUN: not env CINDEXTEST_FAILONERROR=1 c-index-test -test-load-source all -fmodules -fmodule-cache-path %t -Xclang -fdisable-module-hash -I %S/Inputs/Headers -DCRASH %s 2> %t.err
 // RUN: FileCheck < %t.err -check-prefix=CHECK-CRASH %s
-// CHECK-CRASH: crash-recovery-modules.m:16:32:{16:2-16:37}: fatal error: could not build module 'Crash'
+// CHECK-CRASH: crash-recovery-modules.m:16:9:{16:2-16:14}: fatal error: could not build module 'Crash'
 
 // Parse the file again, without crashing, to make sure that
 // subsequent parses do the right thing.
@@ -13,7 +13,7 @@
 // REQUIRES: crash-recovery
 // REQUIRES: shell
 
-@__experimental_modules_import Crash;
+@import Crash;
 
 void test() {
   const char* error = getCrashString();
diff --git a/test/Index/index-module.m b/test/Index/index-module.m
index 0af4e37f3c3d18609ef0ae75386b45b2f99f57ef..54b77d1d5f05c44382f1697c68e3db7725628662 100644
--- a/test/Index/index-module.m
+++ b/test/Index/index-module.m
@@ -1,6 +1,6 @@
 
 #include <DependsOnModule/DependsOnModule.h>
-@__experimental_modules_import DependsOnModule;
+@import DependsOnModule;
 int glob;
 
 // RUN: rm -rf %t.cache
diff --git a/test/Modules/Inputs/MutuallyRecursive1.framework/Headers/MutuallyRecursive1.h b/test/Modules/Inputs/MutuallyRecursive1.framework/Headers/MutuallyRecursive1.h
index 5142f56e6015b8bb20b677ed482a861183a2758c..156c22604f5ac8b2766742c41f5d8234be8c8c05 100644
--- a/test/Modules/Inputs/MutuallyRecursive1.framework/Headers/MutuallyRecursive1.h
+++ b/test/Modules/Inputs/MutuallyRecursive1.framework/Headers/MutuallyRecursive1.h
@@ -1,3 +1,3 @@
 
-@__experimental_modules_import MutuallyRecursive2;
+@import MutuallyRecursive2;
 
diff --git a/test/Modules/Inputs/MutuallyRecursive2.framework/Headers/MutuallyRecursive2.h b/test/Modules/Inputs/MutuallyRecursive2.framework/Headers/MutuallyRecursive2.h
index 8a3cc338c222f0c84423fd4916764f4796d5a558..be3facd70eccb62bdb76f7ad96e83330d617e255 100644
--- a/test/Modules/Inputs/MutuallyRecursive2.framework/Headers/MutuallyRecursive2.h
+++ b/test/Modules/Inputs/MutuallyRecursive2.framework/Headers/MutuallyRecursive2.h
@@ -1,6 +1,6 @@
 
 
-@__experimental_modules_import MutuallyRecursive1;
+@import MutuallyRecursive1;
 
 
 
diff --git a/test/Modules/Inputs/category_bottom.h b/test/Modules/Inputs/category_bottom.h
index b53d9c30d6f60be6c929e3987f5d10492a2e7a2e..ab4c01c3149cdca6dfd65e01139138d061388b8d 100644
--- a/test/Modules/Inputs/category_bottom.h
+++ b/test/Modules/Inputs/category_bottom.h
@@ -1,10 +1,10 @@
-@__experimental_modules_import category_left;
+@import category_left;
 
 @interface Foo(Bottom)
 -(void)bottom;
 @end
 
-@__experimental_modules_import category_right;
+@import category_right;
 
 @interface LeftFoo(Bottom)
 -(void)bottom;
diff --git a/test/Modules/Inputs/category_left.h b/test/Modules/Inputs/category_left.h
index 736fa432690802d401c15be04bd161f68411f24d..05e2a1b96c525b37895925a70bd27a308d2667fb 100644
--- a/test/Modules/Inputs/category_left.h
+++ b/test/Modules/Inputs/category_left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import category_top;
+@import category_top;
 
 @interface Foo(Left)
 -(void)left;
diff --git a/test/Modules/Inputs/category_other.h b/test/Modules/Inputs/category_other.h
index 1bb5a91cbd781e7b253f8469371783246cc81e6f..2c3f4794c2a71e694d12c6ffbcbc6c478085d813 100644
--- a/test/Modules/Inputs/category_other.h
+++ b/test/Modules/Inputs/category_other.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import category_top;
+@import category_top;
 
 @interface Foo(Other)
 -(void)other;
diff --git a/test/Modules/Inputs/category_right.h b/test/Modules/Inputs/category_right.h
index 812a840782497b7a54cd2abd55dbc02f8d210a77..3c83624c761654e579715a0a11f2f0d492192f01 100644
--- a/test/Modules/Inputs/category_right.h
+++ b/test/Modules/Inputs/category_right.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import category_top;
+@import category_top;
 
 @interface Foo(Right1)
 -(void)right1;
diff --git a/test/Modules/Inputs/diamond.h b/test/Modules/Inputs/diamond.h
index 15b529006160efecfdd346413b141ce595acd8fe..1990b45b5f856bd06176574638e8aaae9b36f5f3 100644
--- a/test/Modules/Inputs/diamond.h
+++ b/test/Modules/Inputs/diamond.h
@@ -1 +1 @@
-@__experimental_modules_import diamond_bottom;
+@import diamond_bottom;
diff --git a/test/Modules/Inputs/diamond_bottom.h b/test/Modules/Inputs/diamond_bottom.h
index b45fa936d1e97e65ab57ac0030feae352bbe05dc..2a0a84e3d7b3ec44de04b61ae4adcc1f536d917a 100644
--- a/test/Modules/Inputs/diamond_bottom.h
+++ b/test/Modules/Inputs/diamond_bottom.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import diamond_left;
-@__experimental_modules_import diamond_right;
+@import diamond_left;
+@import diamond_right;
 
 char bottom(char *x);
diff --git a/test/Modules/Inputs/diamond_left.h b/test/Modules/Inputs/diamond_left.h
index cc406ab3891f383491d7d9dd7d241d2cff7a12dd..fce2e48882f8f0acb691ca35262684779d302196 100644
--- a/test/Modules/Inputs/diamond_left.h
+++ b/test/Modules/Inputs/diamond_left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import diamond_top;
+@import diamond_top;
 
 float left(float *);
 
diff --git a/test/Modules/Inputs/diamond_right.h b/test/Modules/Inputs/diamond_right.h
index 2ba1d7744134e3417f89d2938e17e8b4bfd311f8..fa408ea5ba7f1359e2ce7f22765c33a05d0e971a 100644
--- a/test/Modules/Inputs/diamond_right.h
+++ b/test/Modules/Inputs/diamond_right.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import diamond_top;
+@import diamond_top;
 
 double right(double *);
 
diff --git a/test/Modules/Inputs/macros_left.h b/test/Modules/Inputs/macros_left.h
index cd0569389189d7dbbbb42d6a0d6536895a06b928..a8aac75a2fda0cf850619fe13adb4269937f80a0 100644
--- a/test/Modules/Inputs/macros_left.h
+++ b/test/Modules/Inputs/macros_left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import macros_top;
+@import macros_top;
 #define LEFT unsigned long
 
 #undef TOP_LEFT_UNDEF
diff --git a/test/Modules/Inputs/macros_right.h b/test/Modules/Inputs/macros_right.h
index e16a64b50ad31362b2abe4fc5034d2813fa13f21..445f579cf6d03da28b2b39c692f57c550a2a440d 100644
--- a/test/Modules/Inputs/macros_right.h
+++ b/test/Modules/Inputs/macros_right.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import macros_top;
+@import macros_top;
 #define RIGHT unsigned short
 
 
diff --git a/test/Modules/Inputs/namespaces-left.h b/test/Modules/Inputs/namespaces-left.h
index d253fed7c1b2eda0ba9f9a802880ed7a61a599b7..7e9002aea8cdd2c0b50d8c6c531749cdaff0fd79 100644
--- a/test/Modules/Inputs/namespaces-left.h
+++ b/test/Modules/Inputs/namespaces-left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import namespaces_top;
+@import namespaces_top;
 
 namespace N1 { }
 
diff --git a/test/Modules/Inputs/namespaces-right.h b/test/Modules/Inputs/namespaces-right.h
index 7e7286e10b29ff3abf71943e9c730477d743b8dc..b18aeb44786b5a5f7582e0d55b7aa88e99678d10 100644
--- a/test/Modules/Inputs/namespaces-right.h
+++ b/test/Modules/Inputs/namespaces-right.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import namespaces_top;
+@import namespaces_top;
 
 namespace N2 { }
 
diff --git a/test/Modules/Inputs/redecl-merge-bottom.h b/test/Modules/Inputs/redecl-merge-bottom.h
index cfea7dc87da5838c996461a4aac1d0b0f9fbf501..28ea20c55de944243627c113f430379812cfef65 100644
--- a/test/Modules/Inputs/redecl-merge-bottom.h
+++ b/test/Modules/Inputs/redecl-merge-bottom.h
@@ -1,11 +1,11 @@
-@__experimental_modules_import redecl_merge_left;
+@import redecl_merge_left;
 
 @class C4;
 @class C4;
 @protocol P4;
 @protocol P4;
 @protocol P4;
-@__experimental_modules_import redecl_merge_right;
+@import redecl_merge_right;
 
 @class B;
 
diff --git a/test/Modules/Inputs/redecl-merge-left-left.h b/test/Modules/Inputs/redecl-merge-left-left.h
index 5f48883bf15f6c3562137232ea1dbf7441453d04..79c4d620bee9f7f720b0a2c0896347dc45d9f9ba 100644
--- a/test/Modules/Inputs/redecl-merge-left-left.h
+++ b/test/Modules/Inputs/redecl-merge-left-left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import redecl_merge_left;
+@import redecl_merge_left;
 
 @class C4;
 void accept_a_C4(C4*);
diff --git a/test/Modules/Inputs/redecl-merge-left.h b/test/Modules/Inputs/redecl-merge-left.h
index 5e6d2e512b0090dd66e361cff912cd0c4d89099f..973d594a304275cb3126c6ed4e1d223177258885 100644
--- a/test/Modules/Inputs/redecl-merge-left.h
+++ b/test/Modules/Inputs/redecl-merge-left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import redecl_merge_top;
+@import redecl_merge_top;
 
 @class A;
 
diff --git a/test/Modules/Inputs/redecl-merge-right.h b/test/Modules/Inputs/redecl-merge-right.h
index 20223083c31aacdde122574283ab651201d253ac..b664ae9a720499f5d0d4c6e9872e3ea372053040 100644
--- a/test/Modules/Inputs/redecl-merge-right.h
+++ b/test/Modules/Inputs/redecl-merge-right.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import redecl_merge_top;
+@import redecl_merge_top;
 
 @interface Super
 @end
@@ -79,7 +79,7 @@ extern int var2;
 static double var3;
 
 int ONE;
-@__experimental_modules_import redecl_merge_top.Explicit;
+@import redecl_merge_top.Explicit;
 const int one = ONE;
 
 @interface ClassWithDef 
diff --git a/test/Modules/Inputs/templates-left.h b/test/Modules/Inputs/templates-left.h
index 57a8c85bf602ba1251ffc04c03be0eec9828cb01..7451420c7482fd796ca12b9e7b556f035ca014fc 100644
--- a/test/Modules/Inputs/templates-left.h
+++ b/test/Modules/Inputs/templates-left.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import templates_top;
+@import templates_top;
 
 template<typename T> class Vector;
 
diff --git a/test/Modules/Inputs/templates-right.h b/test/Modules/Inputs/templates-right.h
index 4ef4a32e8e276584539c34a1720fe9fff91d3489..d3524d34769bd0679f72669ae6c6f346516047f3 100644
--- a/test/Modules/Inputs/templates-right.h
+++ b/test/Modules/Inputs/templates-right.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import templates_top;
+@import templates_top;
 
 template<typename T> class Vector { 
 public:
diff --git a/test/Modules/Inputs/wildcard-submodule-exports/C_one.h b/test/Modules/Inputs/wildcard-submodule-exports/C_one.h
index fb1c7de845bcce06dee9c823e2eb26dcf7cb13f6..e3b7593b80c8c1e9453783b2673e553665fa058c 100644
--- a/test/Modules/Inputs/wildcard-submodule-exports/C_one.h
+++ b/test/Modules/Inputs/wildcard-submodule-exports/C_one.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import A.One;
-@__experimental_modules_import B.One;
+@import A.One;
+@import B.One;
 
 long *C1;
diff --git a/test/Modules/Inputs/wildcard-submodule-exports/C_two.h b/test/Modules/Inputs/wildcard-submodule-exports/C_two.h
index 050a8f3e88554153165c8e0a710ed91596da9891..b65dcf612ebc7b366f1684998fc7856e0c7ca604 100644
--- a/test/Modules/Inputs/wildcard-submodule-exports/C_two.h
+++ b/test/Modules/Inputs/wildcard-submodule-exports/C_two.h
@@ -1,4 +1,4 @@
-@__experimental_modules_import A.Two;
-@__experimental_modules_import B.Two;
+@import A.Two;
+@import B.Two;
 
 unsigned long *C2;
diff --git a/test/Modules/build-fail-notes.m b/test/Modules/build-fail-notes.m
index af817f9bca88a9c8e02fd8024307f2f3e6b86260..93809daca35e5f9e698dbfaf5352ad11e2c1456c 100644
--- a/test/Modules/build-fail-notes.m
+++ b/test/Modules/build-fail-notes.m
@@ -1,7 +1,7 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodule-cache-path %t -fmodules -F %S/Inputs -DgetModuleVersion="epic fail" %s 2>&1 | FileCheck %s
 
-@__experimental_modules_import DependsOnModule;
+@import DependsOnModule;
 
 // CHECK: While building module 'DependsOnModule' imported from
 // CHECK: While building module 'Module' imported from
@@ -22,10 +22,10 @@ extern int Module;
 // RUN: c-index-test -read-diagnostics %t/tmp.diag 2>&1 | FileCheck -check-prefix=CHECK-SDIAG %s
 
 // CHECK-SDIAG: Module.h:9:13: error: expected ';' after top level declarator
-// CHECK-SDIAG: build-fail-notes.m:4:32: note: while building module 'DependsOnModule' imported from
+// CHECK-SDIAG: build-fail-notes.m:4:9: note: while building module 'DependsOnModule' imported from
 // CHECK-SDIAG: DependsOnModule.h:1:10: note: while building module 'Module' imported from
 // CHECK-SDIAG: note: expanded from here
 // CHECK-SDIAG: warning: umbrella header does not include header 'NotInModule.h' [-Wincomplete-umbrella]
 // CHECK-SDIAG: DependsOnModule.h:1:10: fatal: could not build module 'Module'
-// CHECK-SDIAG: build-fail-notes.m:4:32: note: while building module 'DependsOnModule' imported from
+// CHECK-SDIAG: build-fail-notes.m:4:9: note: while building module 'DependsOnModule' imported from
 
diff --git a/test/Modules/compiler_builtins.m b/test/Modules/compiler_builtins.m
index dfa46c8a34f5c3c579ececeff6895184c0b189a6..bd4309d4dadc15b3b43e78e5339b77a0bd8049d6 100644
--- a/test/Modules/compiler_builtins.m
+++ b/test/Modules/compiler_builtins.m
@@ -4,9 +4,9 @@
 // expected-no-diagnostics
 
 #ifdef __SSE__
-@__experimental_modules_import _Builtin_intrinsics.intel.sse;
+@import _Builtin_intrinsics.intel.sse;
 #endif
 
 #ifdef __AVX2__
-@__experimental_modules_import _Builtin_intrinsics.intel.avx2;
+@import _Builtin_intrinsics.intel.avx2;
 #endif
diff --git a/test/Modules/cstd.m b/test/Modules/cstd.m
index e262c7e1442989cee12839bb7df12d2384f85499..928748570c474081d8dfba22c231cef598d80343 100644
--- a/test/Modules/cstd.m
+++ b/test/Modules/cstd.m
@@ -2,24 +2,24 @@
 // RUN: %clang -fsyntax-only -isystem %S/Inputs/System/usr/include -fmodules -fmodule-cache-path %t -D__need_wint_t -Werror=implicit-function-declaration %s
 
 // Supplied by compiler, but referenced from the "/usr/include" module map.
-@__experimental_modules_import cstd.float_constants;
+@import cstd.float_constants;
 
 float getFltMax() { return FLT_MAX; }
 
 // Supplied by the "/usr/include" module map.
-@__experimental_modules_import cstd.stdio;
+@import cstd.stdio;
 
 void test_fprintf(FILE *file) {
   fprintf(file, "Hello, modules\n");
 }
 
 // Supplied by compiler, which forwards to the "/usr/include" version.
-@__experimental_modules_import cstd.stdint;
+@import cstd.stdint;
 
 my_awesome_nonstandard_integer_type value;
 
 // Supplied by the compiler; that version wins.
-@__experimental_modules_import cstd.stdbool;
+@import cstd.stdbool;
 
 #ifndef bool
 #  error "bool was not defined!"
diff --git a/test/Modules/cycles.c b/test/Modules/cycles.c
index 5fcb41ec1f64d5459424105548f7ffcffea60011..ea893ee6dae15571ee1596ba19677751a17c4323 100644
--- a/test/Modules/cycles.c
+++ b/test/Modules/cycles.c
@@ -1,13 +1,13 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodules -x objective-c -fmodule-cache-path %t -F %S/Inputs %s 2>&1 | FileCheck %s
 // FIXME: When we have a syntax for modules in C, use that.
-@__experimental_modules_import MutuallyRecursive1;
+@import MutuallyRecursive1;
 
 // CHECK: While building module 'MutuallyRecursive1' imported from
 // CHECK: While building module 'MutuallyRecursive2' imported from
-// CHECK: MutuallyRecursive2.h:3:32: fatal error: cyclic dependency in module 'MutuallyRecursive1': MutuallyRecursive1 -> MutuallyRecursive2 -> MutuallyRecursive1
+// CHECK: MutuallyRecursive2.h:3:9: fatal error: cyclic dependency in module 'MutuallyRecursive1': MutuallyRecursive1 -> MutuallyRecursive2 -> MutuallyRecursive1
 // CHECK: While building module 'MutuallyRecursive1' imported from
-// CHECK: MutuallyRecursive1.h:2:32: fatal error: could not build module 'MutuallyRecursive2'
-// CHECK: cycles.c:4:32: fatal error: could not build module 'MutuallyRecursive1'
+// CHECK: MutuallyRecursive1.h:2:9: fatal error: could not build module 'MutuallyRecursive2'
+// CHECK: cycles.c:4:9: fatal error: could not build module 'MutuallyRecursive1'
 // CHECK-NOT: error:
 
diff --git a/test/Modules/decldef.mm b/test/Modules/decldef.mm
index 64a66d59d0e622af536621089a8709bdefb824ba..c99fdea0d84ee0f646313beaa716f9a5660a4e9b 100644
--- a/test/Modules/decldef.mm
+++ b/test/Modules/decldef.mm
@@ -10,10 +10,10 @@
 
 // in other file: expected-note{{previous definition is here}}
 
-@__experimental_modules_import decldef;
+@import decldef;
 A *a1; // expected-error{{unknown type name 'A'}}
 B *b1; // expected-error{{unknown type name 'B'}}
-@__experimental_modules_import decldef.Decl;
+@import decldef.Decl;
 
 A *a2;
 B *b;
diff --git a/test/Modules/diamond.c b/test/Modules/diamond.c
index 076eec4bf268fdbad58ae534c3c49e15a397d884..1d8902101ee4b615bf39a9db7f519cae7c23032b 100644
--- a/test/Modules/diamond.c
+++ b/test/Modules/diamond.c
@@ -3,7 +3,7 @@
 
 // in diamond-bottom.h: expected-note{{passing argument to parameter 'x' here}}
 
-@__experimental_modules_import diamond_bottom;
+@import diamond_bottom;
 
 void test_diamond(int i, float f, double d, char c) {
   top(&i);
diff --git a/test/Modules/epic-fail.m b/test/Modules/epic-fail.m
index 7c3faaf63fefe9700ea4159626de3c031d50f5bb..ef0aa5a0e722ef2d0377f37400b7d91845b9ad2d 100644
--- a/test/Modules/epic-fail.m
+++ b/test/Modules/epic-fail.m
@@ -1,8 +1,8 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodule-cache-path %t -fmodules -F %S/Inputs -DgetModuleVersion="epic fail" %s 2>&1 | FileCheck %s
 
-@__experimental_modules_import Module;
-@__experimental_modules_import DependsOnModule;
+@import Module;
+@import DependsOnModule;
 
 // CHECK: While building module 'Module' imported from
 // CHECK: error: expected ';' after top level declarator
diff --git a/test/Modules/header-import.m b/test/Modules/header-import.m
index 49549d0c671a81491a3831feafe567104f64b5bb..60d2889dc9fce3cc7374188ea97e6c94aa7cef6e 100644
--- a/test/Modules/header-import.m
+++ b/test/Modules/header-import.m
@@ -3,6 +3,6 @@
 // expected-no-diagnostics
 
 #import "point.h"
-@__experimental_modules_import Module;
+@import Module;
 #import "point.h"
 
diff --git a/test/Modules/import-decl.cpp b/test/Modules/import-decl.cpp
index 0f05f92708bc8fc85a926cc79fe747ab68be13f9..781e19fde806be9b0ab1b65e452ae2e15c6dd0ad 100644
--- a/test/Modules/import-decl.cpp
+++ b/test/Modules/import-decl.cpp
@@ -2,7 +2,7 @@
 // RUN: %clang -fmodule-cache-path %t -fmodules -x objective-c -I %S/Inputs -emit-ast -o %t.ast %s
 // RUN: %clang_cc1 -ast-print -x ast - < %t.ast | FileCheck %s
 
-@__experimental_modules_import import_decl;
+@import import_decl;
 // CHECK: struct T
 
 int main() {
diff --git a/test/Modules/inferred-frameworks.m b/test/Modules/inferred-frameworks.m
index 916c900b6457fb9aa7d2deb0b912813bc94ad712..56854d80c82c6690d6aad67a85ecb05c126b4538 100644
--- a/test/Modules/inferred-frameworks.m
+++ b/test/Modules/inferred-frameworks.m
@@ -3,6 +3,6 @@
 
 #include <NotAModule/NotAModule.h>
 
-@__experimental_modules_import NotAModule; // expected-error{{module 'NotAModule' not found}}
+@import NotAModule; // expected-error{{module 'NotAModule' not found}}
 
 
diff --git a/test/Modules/inferred-submodules.m b/test/Modules/inferred-submodules.m
index 8c61bc081c2da1efbff7080ebd820c783d50a6e8..9c8b81536ee94e9ca117dd95e2502a67e3d75192 100644
--- a/test/Modules/inferred-submodules.m
+++ b/test/Modules/inferred-submodules.m
@@ -2,13 +2,13 @@
 // RUN: %clang_cc1 -x objective-c -Wauto-import -fmodule-cache-path %t -fmodules -F %S/Inputs %s -verify
 // expected-no-diagnostics
 
-@__experimental_modules_import Module.Sub;
+@import Module.Sub;
 
 void test_Module_Sub() {
   int *ip = Module_Sub;
 }
 
-@__experimental_modules_import Module.Buried.Treasure;
+@import Module.Buried.Treasure;
 
 void dig() {
   unsigned *up = Buried_Treasure;
diff --git a/test/Modules/irgen.c b/test/Modules/irgen.c
index 4a080db5b2eb4699f936d285324bcd73f76b219d..8f4c299a7efbc02b185bd5855589a33ce28d3939 100644
--- a/test/Modules/irgen.c
+++ b/test/Modules/irgen.c
@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -fmodules -x objective-c -fmodule-cache-path %t -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
 // FIXME: When we have a syntax for modules in C, use that.
 
-@__experimental_modules_import irgen;
+@import irgen;
 
 // CHECK: define void @triple_value
 void triple_value(int *px) {
diff --git a/test/Modules/load_failure.c b/test/Modules/load_failure.c
index 3a963012b19009d80b74ae6d7a3415767efb7758..bc0b42631598d976bf0e06e922b3a0e1eb919774 100644
--- a/test/Modules/load_failure.c
+++ b/test/Modules/load_failure.c
@@ -1,15 +1,15 @@
 #ifdef NONEXISTENT
-@__experimental_modules_import load_nonexistent;
+@import load_nonexistent;
 #endif
 
 #ifdef FAILURE
-@__experimental_modules_import load_failure;
+@import load_failure;
 #endif
 
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodules -x objective-c++ -fmodule-cache-path %t -fdisable-module-hash -emit-module -fmodule-name=load_failure %S/Inputs/module.map
 // RUN: %clang_cc1 -fmodules -x objective-c -fmodule-cache-path %t -fdisable-module-hash %s -DNONEXISTENT 2>&1 | FileCheck -check-prefix=CHECK-NONEXISTENT %s
-// CHECK-NONEXISTENT: load_failure.c:2:32: fatal error: module 'load_nonexistent' not found
+// CHECK-NONEXISTENT: load_failure.c:2:9: fatal error: module 'load_nonexistent' not found
 
 // RUN: not %clang_cc1 -fmodules -x objective-c -fmodule-cache-path %t -fdisable-module-hash %s -DFAILURE 2> %t.out
 // RUN: FileCheck -check-prefix=CHECK-FAILURE %s < %t.out
diff --git a/test/Modules/lookup.cpp b/test/Modules/lookup.cpp
index 70d210750d94e6eda6355cebdc296787d021e987..76e1f6aae2eba9a7f610cd7c7f34d040420026fe 100644
--- a/test/Modules/lookup.cpp
+++ b/test/Modules/lookup.cpp
@@ -1,8 +1,8 @@
 
-#define import @__experimental_modules_import
+#define import @import
 import lookup_left_cxx;
 #undef import
-#define IMPORT(X) @__experimental_modules_import X
+#define IMPORT(X) @import X
 IMPORT(lookup_right_cxx);
 
 // in lookup_left.hpp: expected-warning@3 {{weak identifier 'weak_identifier' never declared}}
diff --git a/test/Modules/lookup.m b/test/Modules/lookup.m
index c82503f79035eb302ec0c8163b03ea64a46066dd..7ca0c23a46529a3bdd29f1bfbbe122485dd88f49 100644
--- a/test/Modules/lookup.m
+++ b/test/Modules/lookup.m
@@ -1,8 +1,8 @@
 
 // lookup_left.h: expected-note{{using}}
 // lookup_right.h: expected-note{{also found}}
-@__experimental_modules_import lookup_left_objc;
-@__experimental_modules_import lookup_right_objc;
+@import lookup_left_objc;
+@import lookup_right_objc;
 
 void test(id x) {
   [x method]; // expected-warning{{multiple methods named 'method' found}}
diff --git a/test/Modules/macros.c b/test/Modules/macros.c
index 8db3915f24a9cc190ff9ff9056d6e1ea2de29737..f6b47442c4cdae933bdfffae0946b133098c0cd8 100644
--- a/test/Modules/macros.c
+++ b/test/Modules/macros.c
@@ -16,7 +16,7 @@
 
 // expected-note{{other definition of 'TOP_RIGHT_REDEF'}}
 
-@__experimental_modules_import macros;
+@import macros;
 
 #ifndef INTEGER
 #  error INTEGER macro should be visible
@@ -65,7 +65,7 @@ void f() {
 #endif
 
 // Import left module (which also imports top)
-@__experimental_modules_import macros_left;
+@import macros_left;
 
 #ifndef LEFT
 #  error LEFT should be visible
@@ -91,7 +91,7 @@ void test1() {
 #define LEFT_RIGHT_DIFFERENT2 double // FIXME: expected-warning{{'LEFT_RIGHT_DIFFERENT2' macro redefined}}
 
 // Import right module (which also imports top)
-@__experimental_modules_import macros_right;
+@import macros_right;
 
 #undef LEFT_RIGHT_DIFFERENT3
 
@@ -130,7 +130,7 @@ void test3() {
 #  error TOP_RIGHT_UNDEF should still be defined
 #endif
 
-@__experimental_modules_import macros_right.undef;
+@import macros_right.undef;
 
 #ifdef TOP_RIGHT_UNDEF
 # error TOP_RIGHT_UNDEF should not be defined
diff --git a/test/Modules/method_pool.m b/test/Modules/method_pool.m
index 25582caec3a353554e9491abcba6010f30e71768..9574caa15285fce5cb512ce62080fe5420181d6f 100644
--- a/test/Modules/method_pool.m
+++ b/test/Modules/method_pool.m
@@ -1,7 +1,7 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodule-cache-path %t -fmodules -I %S/Inputs %s -verify
 
-@__experimental_modules_import MethodPoolA;
+@import MethodPoolA;
 
 
 // in other file: // expected-note{{using}}
@@ -19,7 +19,7 @@ void testMethod2(id object) {
   [object method2:1];
 } 
 
-@__experimental_modules_import MethodPoolB;
+@import MethodPoolB;
 
 void testMethod1Again(id object) {
   [object method1];
diff --git a/test/Modules/modify-module.m b/test/Modules/modify-module.m
index b630ac105874593e531238e3e24659802c4939f0..422d3c3e97c35d4e70a6b6368ca881a582ad1b94 100644
--- a/test/Modules/modify-module.m
+++ b/test/Modules/modify-module.m
@@ -13,7 +13,7 @@
 // RUN: echo 'int getA(); int getA2();' > %t/include/A.h
 // RUN: %clang_cc1 -fmodule-cache-path %t/cache -fmodules -I %t/include %s -verify
 
-@__experimental_modules_import B;
+@import B;
 
 int getValue() { return getA() + getB(); }
 
diff --git a/test/Modules/module-private.cpp b/test/Modules/module-private.cpp
index 31a3410a03f80eda21cbf9f31c34826edb828123..b2905a1f764b59a4e09367914db12b3e5023d12d 100644
--- a/test/Modules/module-private.cpp
+++ b/test/Modules/module-private.cpp
@@ -4,8 +4,8 @@
 // RUN: %clang_cc1 -fmodules -x objective-c++ -fmodule-cache-path %t %s -verify
 // FIXME: When we have a syntax for modules in C++, use that.
 
-@__experimental_modules_import module_private_left;
-@__experimental_modules_import module_private_right;
+@import module_private_left;
+@import module_private_right;
 
 void test() {
   int &ir = f0(1.0); // okay: f0() from 'right' is not visible
diff --git a/test/Modules/namespaces.cpp b/test/Modules/namespaces.cpp
index 19e0c5a991f95e72aedae77ac2e6c2a636d10e7a..871ae793d316d8a9d5c6233104c73ef328862ee6 100644
--- a/test/Modules/namespaces.cpp
+++ b/test/Modules/namespaces.cpp
@@ -11,8 +11,8 @@ namespace N6 {
 
 namespace N8 { }
 
-@__experimental_modules_import namespaces_left;
-@__experimental_modules_import namespaces_right;
+@import namespaces_left;
+@import namespaces_right;
 
 void test() {
   int &ir1 = N1::f(1);
diff --git a/test/Modules/normal-module-map.cpp b/test/Modules/normal-module-map.cpp
index 07ca5ed9330a1a8c8f3c52b91df33cab53690bf4..6509a6d023d5f1214a5f86b07bf79b160e3065e9 100644
--- a/test/Modules/normal-module-map.cpp
+++ b/test/Modules/normal-module-map.cpp
@@ -8,7 +8,7 @@ int getUmbrella() {
   return umbrella + umbrella_sub; 
 }
 
-@__experimental_modules_import Umbrella2;
+@import Umbrella2;
 
 #include "a1.h"
 #include "b1.h"
@@ -18,7 +18,7 @@ int test() {
   return a1 + b1 + nested2;
 }
 
-@__experimental_modules_import nested_umbrella.a;
+@import nested_umbrella.a;
 
 int testNestedUmbrellaA() {
   return nested_umbrella_a;
@@ -28,17 +28,17 @@ int testNestedUmbrellaBFail() {
   return nested_umbrella_b; // expected-error{{use of undeclared identifier 'nested_umbrella_b'; did you mean 'nested_umbrella_a'?}}
 }
 
-@__experimental_modules_import nested_umbrella.b;
+@import nested_umbrella.b;
 
 int testNestedUmbrellaB() {
   return nested_umbrella_b;
 }
 
-@__experimental_modules_import nested_umbrella.a_extras;
+@import nested_umbrella.a_extras;
 
-@__experimental_modules_import nested_umbrella._1;
+@import nested_umbrella._1;
 
-@__experimental_modules_import nested_umbrella.decltype_;
+@import nested_umbrella.decltype_;
 
 int testSanitizedName() {
   return extra_a + one + decltype_val;
diff --git a/test/Modules/objc-categories.m b/test/Modules/objc-categories.m
index b26759239ddab02d3ab71c4b0f819c297f56251e..f19dc7efcf0523b4b4ae7ece3c29888775883c28 100644
--- a/test/Modules/objc-categories.m
+++ b/test/Modules/objc-categories.m
@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -fmodules -fmodule-cache-path %t -x objective-c -fmodule-name=category_other -emit-module %S/Inputs/module.map
 // RUN: %clang_cc1 -fmodules -fmodule-cache-path %t %s -verify
 
-@__experimental_modules_import category_bottom;
+@import category_bottom;
 
 
 
@@ -34,7 +34,7 @@ void test(Foo *foo, LeftFoo *leftFoo) {
 
 // Load another module that also adds categories to Foo, verify that
 // we see those categories.
-@__experimental_modules_import category_other;
+@import category_other;
 
 void test_other(Foo *foo) {
   [foo other];
diff --git a/test/Modules/on-demand-build-warnings.m b/test/Modules/on-demand-build-warnings.m
index 24975c01b781fb62738cd2974ae73903b20ab855..7116f01d381ba50536dfebc867b94aad285bb8f5 100644
--- a/test/Modules/on-demand-build-warnings.m
+++ b/test/Modules/on-demand-build-warnings.m
@@ -1,5 +1,5 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -fmodules -fno-objc-infer-related-result-type -Wmodule-build -fmodule-cache-path %t -F %S/Inputs -verify %s
 
-@__experimental_modules_import Module; // expected-warning{{building module 'Module' from source}}
+@import Module; // expected-warning{{building module 'Module' from source}}
 
diff --git a/test/Modules/on-demand-build.m b/test/Modules/on-demand-build.m
index 4ee6b58d96b4c59c5f32e36885d3a71ce39365e9..32bdc37206bb109bbe5a745b711313302649b2ea 100644
--- a/test/Modules/on-demand-build.m
+++ b/test/Modules/on-demand-build.m
@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -fmodules -fno-objc-infer-related-result-type -Werror -Wno-error=incomplete-umbrella -x objective-c++ -fmodule-cache-path %t -F %S/Inputs -I %S/Inputs -verify %s
 // RUN: %clang_cc1 -fmodules -fno-objc-infer-related-result-type -Werror -Wno-error=incomplete-umbrella -fmodule-cache-path %t -F %S/Inputs -I %S/Inputs -verify %s
 #define FOO
-@__experimental_modules_import Module;
+@import Module;
 @interface OtherClass
 @end
 
@@ -19,6 +19,6 @@ void test_getModuleVersion() {
 #  error MODULE_SUBFRAMEWORK_H should be hidden
 #endif
 
-@__experimental_modules_import subdir;
+@import subdir;
 
 const char *getSubdirTest() { return getSubdir(); }
diff --git a/test/Modules/on-demand-macros.m b/test/Modules/on-demand-macros.m
index 8b50529f1a28f064f353b22f4eb35b76fec6c395..208bb567edac4b8e150fb60d1416188f053fb309 100644
--- a/test/Modules/on-demand-macros.m
+++ b/test/Modules/on-demand-macros.m
@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -fmodules -fmodule-cache-path %t -F %S/Inputs -verify %s
 // expected-no-diagnostics
 
-@__experimental_modules_import CmdLine;
+@import CmdLine;
 
 void test() {
 #ifdef FOO_RETURNS_INT_PTR
diff --git a/test/Modules/redecl-merge.m b/test/Modules/redecl-merge.m
index d7224149a28298a435313723344dc4d372b30e13..52c4511bdc53cfca602aa7470b1667de3fccc974 100644
--- a/test/Modules/redecl-merge.m
+++ b/test/Modules/redecl-merge.m
@@ -3,12 +3,12 @@
 @class C2;
 @class C3;
 @class C3;
-@__experimental_modules_import redecl_merge_left;
+@import redecl_merge_left;
 typedef struct my_struct_type *my_struct_ref;
 @protocol P4;
 @class C3;
 @class C3;
-@__experimental_modules_import redecl_merge_right;
+@import redecl_merge_right;
 
 @implementation A
 - (Super*)init { return self; }
@@ -112,7 +112,7 @@ C4 *global_C4;
 
 ClassWithDef *cwd1;
 
-@__experimental_modules_import redecl_merge_left_left;
+@import redecl_merge_left_left;
 
 void test_C4a(C4 *c4) {
   global_C4 = c4 = get_a_C4();
@@ -123,7 +123,7 @@ void test_ClassWithDef(ClassWithDef *cwd) {
   [cwd method];
 }
 
-@__experimental_modules_import redecl_merge_bottom;
+@import redecl_merge_bottom;
 
 void test_C4b() {
   if (&refers_to_C4) {
diff --git a/test/Modules/redecl-namespaces.mm b/test/Modules/redecl-namespaces.mm
index e338821564822dc9cf0650073253a54887785a19..978875738304c657980b75c1e596e88e43bce4fd 100644
--- a/test/Modules/redecl-namespaces.mm
+++ b/test/Modules/redecl-namespaces.mm
@@ -1,5 +1,5 @@
-@__experimental_modules_import redecl_namespaces_left;
-@__experimental_modules_import redecl_namespaces_right;
+@import redecl_namespaces_left;
+@import redecl_namespaces_right;
 
 void test() {
   A::i;
diff --git a/test/Modules/redeclarations.m b/test/Modules/redeclarations.m
index 221e154cb2742cedaaa1ca1e4e7d4679b08578d3..b4b01347c6e7d2f42fda97c9da9915c88dbf90c5 100644
--- a/test/Modules/redeclarations.m
+++ b/test/Modules/redeclarations.m
@@ -1,5 +1,5 @@
-@__experimental_modules_import redeclarations_left;
-@__experimental_modules_import redeclarations_right;
+@import redeclarations_left;
+@import redeclarations_right;
 
 @interface MyObject : NSObject
 @end
diff --git a/test/Modules/requires.m b/test/Modules/requires.m
index ce2537c78b73756ca67168c52f77db2f13d3da38..70d6160b0f3cfffcb9520f6fc028f3c82563d2b0 100644
--- a/test/Modules/requires.m
+++ b/test/Modules/requires.m
@@ -1,5 +1,5 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fmodules -F %S/Inputs %s -verify
 
-@__experimental_modules_import DependsOnModule.CXX; // expected-error{{module 'DependsOnModule.CXX' requires feature 'cplusplus'}}
+@import DependsOnModule.CXX; // expected-error{{module 'DependsOnModule.CXX' requires feature 'cplusplus'}}
 
diff --git a/test/Modules/subframeworks.m b/test/Modules/subframeworks.m
index 09298c49395889a4b0d2a7a5423113f82e9775a7..e87bc6bac33a53b0fcf49c583998d6657464405b 100644
--- a/test/Modules/subframeworks.m
+++ b/test/Modules/subframeworks.m
@@ -2,13 +2,13 @@
 // RUN: %clang_cc1 -Wauto-import -fmodule-cache-path %t -fmodules -F %S/Inputs -F %S/Inputs/DependsOnModule.framework/Frameworks %s -verify
 // RUN: %clang_cc1 -x objective-c++ -Wauto-import -fmodule-cache-path %t -fmodules -F %S/Inputs -F %S/Inputs/DependsOnModule.framework/Frameworks %s -verify
 
-@__experimental_modules_import DependsOnModule;
+@import DependsOnModule;
 
 void testSubFramework() {
   float *sf1 = sub_framework; // expected-error{{use of undeclared identifier 'sub_framework'}}
 }
 
-@__experimental_modules_import DependsOnModule.SubFramework;
+@import DependsOnModule.SubFramework;
 
 void testSubFrameworkAgain() {
   float *sf2 = sub_framework;
@@ -16,7 +16,7 @@ void testSubFrameworkAgain() {
 }
 
 #ifdef __cplusplus
-@__experimental_modules_import DependsOnModule.CXX;
+@import DependsOnModule.CXX;
 
 CXXOnly cxxonly;
 #endif
diff --git a/test/Modules/submodules-preprocess.cpp b/test/Modules/submodules-preprocess.cpp
index 8d6c2cd70d844098a3377824df79bcbafeaa6093..7d218b13593e31b3d527ddb2a5bb26680ec54a75 100644
--- a/test/Modules/submodules-preprocess.cpp
+++ b/test/Modules/submodules-preprocess.cpp
@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 -fmodules -x objective-c++ -Eonly -fmodule-cache-path %t -I %S/Inputs/submodules %s -verify
 // FIXME: When we have a syntax for modules in C++, use that.
 
-@__experimental_modules_import std.vector;
+@import std.vector;
 
 #ifndef HAVE_VECTOR
 #  error HAVE_VECTOR macro is not available (but should be)
@@ -16,7 +16,7 @@
 #  error HAVE_HASH_MAP macro is available (but shouldn't be)
 #endif
 
-@__experimental_modules_import std.typetraits; // expected-error{{no submodule named 'typetraits' in module 'std'; did you mean 'type_traits'?}}
+@import std.typetraits; // expected-error{{no submodule named 'typetraits' in module 'std'; did you mean 'type_traits'?}}
 
 #ifndef HAVE_VECTOR
 #  error HAVE_VECTOR macro is not available (but should be)
@@ -30,9 +30,9 @@
 #  error HAVE_HASH_MAP macro is available (but shouldn't be)
 #endif
 
-@__experimental_modules_import std.vector.compare; // expected-error{{no submodule named 'compare' in module 'std.vector'}}
+@import std.vector.compare; // expected-error{{no submodule named 'compare' in module 'std.vector'}}
 
-@__experimental_modules_import std; // import everything in 'std'
+@import std; // import everything in 'std'
 
 #ifndef HAVE_VECTOR
 #  error HAVE_VECTOR macro is not available (but should be)
@@ -46,7 +46,7 @@
 #  error HAVE_HASH_MAP macro is available (but shouldn't be)
 #endif
 
-@__experimental_modules_import std.hash_map;
+@import std.hash_map;
 
 #ifndef HAVE_VECTOR
 #  error HAVE_VECTOR macro is not available (but should be)
diff --git a/test/Modules/submodules.cpp b/test/Modules/submodules.cpp
index 60d5ae0c22f4de140cecac0a8b28cc94ed037133..1417446416cdc2d91623efc6c3724cc879640009 100644
--- a/test/Modules/submodules.cpp
+++ b/test/Modules/submodules.cpp
@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 -x objective-c++ -fmodule-cache-path %t -fmodules -I %S/Inputs/submodules %s -verify
 // FIXME: When we have a syntax for modules in C++, use that.
 
-@__experimental_modules_import std.vector;
+@import std.vector;
 
 vector<int> vi;
 
@@ -10,20 +10,20 @@ vector<int> vi;
 remove_reference<int&>::type *int_ptr = 0; // expected-error{{unknown type name 'remove_reference'}} \
 // expected-error{{expected unqualified-id}}
 
-@__experimental_modules_import std.typetraits; // expected-error{{no submodule named 'typetraits' in module 'std'; did you mean 'type_traits'?}}
+@import std.typetraits; // expected-error{{no submodule named 'typetraits' in module 'std'; did you mean 'type_traits'?}}
 
 vector<float> vf;
 remove_reference<int&>::type *int_ptr2 = 0;
 
-@__experimental_modules_import std.vector.compare; // expected-error{{no submodule named 'compare' in module 'std.vector'}}
+@import std.vector.compare; // expected-error{{no submodule named 'compare' in module 'std.vector'}}
 
-@__experimental_modules_import std; // import everything in 'std'
+@import std; // import everything in 'std'
 
 // hash_map still isn't available.
 hash_map<int, float> ints_to_floats; // expected-error{{unknown type name 'hash_map'}} \
 // expected-error{{expected unqualified-id}}
 
-@__experimental_modules_import std.hash_map;
+@import std.hash_map;
 
 hash_map<int, float> ints_to_floats2;
 
diff --git a/test/Modules/submodules.m b/test/Modules/submodules.m
index a758abc248dd2ed9ae54ca31c752f126cce3f6a7..bf2d52947e920612f4c645fcb1e930d4d982c908 100644
--- a/test/Modules/submodules.m
+++ b/test/Modules/submodules.m
@@ -4,7 +4,7 @@
 // expected-no-diagnostics
 
 // Note: transitively imports Module.Sub2.
-@__experimental_modules_import Module.Sub;
+@import Module.Sub;
 
 int getValue() { 
   return *Module_Sub + *Module_Sub2;
diff --git a/test/Modules/templates.mm b/test/Modules/templates.mm
index 45417401d86fd26c72c05e00be4279c5b9de682c..22f94caea61a0408e4d9a9a5595e73e8938b7e15 100644
--- a/test/Modules/templates.mm
+++ b/test/Modules/templates.mm
@@ -3,8 +3,8 @@
 // RUN: %clang_cc1 -x objective-c++ -fmodules -fmodule-cache-path %t -I %S/Inputs -emit-llvm %s -o - -Wno-objc-root-class | grep Emit | FileCheck %s
 // expected-no-diagnostics
 
-@__experimental_modules_import templates_left;
-@__experimental_modules_import templates_right;
+@import templates_left;
+@import templates_right;
 
 
 void testTemplateClasses() {
diff --git a/test/Modules/wildcard-submodule-exports.cpp b/test/Modules/wildcard-submodule-exports.cpp
index 6b4f02c6f2366650e99aaff753baea9e44d66f4f..00d95716512ce401c3353073871eb8ac23a12a32 100644
--- a/test/Modules/wildcard-submodule-exports.cpp
+++ b/test/Modules/wildcard-submodule-exports.cpp
@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 -x objective-c++ -fmodule-cache-path %t -fmodules -I %S/Inputs/wildcard-submodule-exports %s -verify
 // FIXME: When we have a syntax for modules in C++, use that.
 
-@__experimental_modules_import C.One;
+@import C.One;
 
 void test_C_One() {
   int *A1_ptr = A1;
@@ -10,7 +10,7 @@ void test_C_One() {
   (void)B1; // expected-error{{use of undeclared identifier 'B1'}}
 }
 
-@__experimental_modules_import C.Two;
+@import C.Two;
 
 void test_C_Two() {
   unsigned int *A2_ptr = A2;
@@ -18,7 +18,7 @@ void test_C_Two() {
   unsigned long *C2_ptr = C2;
 }
 
-@__experimental_modules_import B.One;
+@import B.One;
 
 void test_B_One() {
   short *B1_ptr = B1;