Merge branch 'master' of ssh://bitbucket.org/czan/honours

1 files changed, 41 insertions, 0 deletions

diff --git a/clang/test/Preprocessor/pragma-pushpop-macro.c b/clang/test/Preprocessor/pragma-pushpop-macro.c
new file mode 100644
index 0000000..08a6570
--- /dev/null
+++ b/clang/test/Preprocessor/pragma-pushpop-macro.c
@@ -0,0 +1,41 @@
+/* Test pragma pop_macro and push_macro directives from
+   http://msdn.microsoft.com/en-us/library/hsttss76.aspx */
+
+// pop_macro: Sets the value of the macro_name macro to the value on the top of
+// the stack for this macro.
+// #pragma pop_macro("macro_name")
+// push_macro: Saves the value of the macro_name macro on the top of the stack
+// for this macro.
+// #pragma push_macro("macro_name")
+//
+// RUN: %clang_cc1 -fms-extensions -E %s -o - | FileCheck %s
+
+#define X 1
+#define Y 2
+int pmx0 = X;
+int pmy0 = Y;
+#define Y 3
+#pragma push_macro("Y")
+#pragma push_macro("X")
+int pmx1 = X;
+#define X 2
+int pmx2 = X;
+#pragma pop_macro("X")
+int pmx3 = X;
+#pragma pop_macro("Y")
+int pmy1 = Y;
+
+// Have a stray 'push' to show we don't crash when having imbalanced
+// push/pop
+#pragma push_macro("Y")
+#define Y 4
+int pmy2 = Y;
+
+// CHECK: int pmx0 = 1
+// CHECK: int pmy0 = 2
+// CHECK: int pmx1 = 1
+// CHECK: int pmx2 = 2
+// CHECK: int pmx3 = 1
+// CHECK: int pmy1 = 3
+// CHECK: int pmy2 = 4
+