Only provide MS builtins when -fms-extensions is on

We already have builtins that are only available in GNU mode, so this
mirrors that.

Reviewers: rsmith

Differential Revision: http://llvm-reviews.chandlerc.com/D2128

llvm-svn: 194615

3 files changed, 13 insertions, 1 deletions

diff --git a/clang/test/CodeGen/builtin-ms-noop.cpp b/clang/test/CodeGen/builtin-ms-noop.cpp
index 42c25016b13..7c5068dd61b 100644
--- a/clang/test/CodeGen/builtin-ms-noop.cpp
+++ b/clang/test/CodeGen/builtin-ms-noop.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple i686-pc-win32 -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -fms-extensions -triple i686-pc-win32 -emit-llvm %s -o - | FileCheck %s
 
 class A {
  public:
diff --git a/clang/test/Sema/builtins.c b/clang/test/Sema/builtins.c
index 33b09543819..8ca33c8e752 100644
--- a/clang/test/Sema/builtins.c
+++ b/clang/test/Sema/builtins.c
@@ -191,3 +191,9 @@ void test18() {
   ptr = __builtin___strlcpy_chk(dst, src, sizeof(src), sizeof(dst)); // expected-warning {{incompatible integer to pointer conversion}}
   ptr = __builtin___strlcat_chk(dst, src, sizeof(src), sizeof(dst)); // expected-warning {{incompatible integer to pointer conversion}}
 }
+
+void no_ms_builtins() {
+  __assume(1); // expected-warning {{implicit declaration}}
+  __noop(1); // expected-warning {{implicit declaration}}
+  __debugbreak(); // expected-warning {{implicit declaration}}
+}
diff --git a/clang/test/SemaCXX/builtins.cpp b/clang/test/SemaCXX/builtins.cpp
index 63aa711d62d..69bdfa61451 100644
--- a/clang/test/SemaCXX/builtins.cpp
+++ b/clang/test/SemaCXX/builtins.cpp
@@ -38,3 +38,9 @@ namespace addressof {
 
   S *ptmp = __builtin_addressof(S{}); // expected-error {{taking the address of a temporary}}
 }
+
+void no_ms_builtins() {
+  __assume(1); // expected-error {{use of undeclared}}
+  __noop(1); // expected-error {{use of undeclared}}
+  __debugbreak(); // expected-error {{use of undeclared}}
+}