When we parse a pragma, keep track of how that pragma was originally

spelled (#pragma, _Pragma, __pragma). In -E mode, use that information
to add appropriate newlines when translating _Pragma and __pragma into
#pragma, like GCC does. Fixes <rdar://problem/8412013>.

llvm-svn: 113553

1 files changed, 15 insertions, 0 deletions

diff --git a/clang/test/Lexer/pragma-operators.cpp b/clang/test/Lexer/pragma-operators.cpp
new file mode 100644
index 00000000000..af346e8c968
--- /dev/null
+++ b/clang/test/Lexer/pragma-operators.cpp
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 -fms-extensions -E %s | FileCheck %s
+
+// Test that we properly expand the C99 _Pragma and Microsoft __pragma
+// into #pragma directives, with newlines where needed. <rdar://problem/8412013>
+
+// CHECK: extern
+// CHECK: #line
+// CHECK: #pragma warning(push)
+// CHECK: #line
+// CHECK: ; void f0();
+// CHECK: #line
+// CHECK: #pragma warning(pop)
+// CHECK: #line
+// CHECK: ; }
+extern "C" { _Pragma("warning(push)"); void f0(); __pragma(warning(pop)); }