[cfe-commits] [PATCH] Added a test for C++11 statement attributes serialization.

[Alexander Kornienko]

  Changed from FileCheck to clang -cc1 -verify

Hi rsmith,

http://llvm-reviews.chandlerc.com/D55

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D55?vs=148&id=149#toc

Files:
  tools/clang/test/PCH/cxx11-statement-attributes.cpp
  tools/clang/test/PCH/Inputs/cxx11-statement-attributes.h

Index: tools/clang/test/PCH/cxx11-statement-attributes.cpp
===================================================================
--- tools/clang/test/PCH/cxx11-statement-attributes.cpp
+++ tools/clang/test/PCH/cxx11-statement-attributes.cpp
@@ -0,0 +1,12 @@
+// Sanity check.
+// RUN: %clang_cc1 -include %S/Inputs/cxx11-statement-attributes.h -std=c++11 -Wimplicit-fallthrough -fsyntax-only %s -o - -verify
+// Run the same tests, this time with the attributes loaded from the PCH file.
+// RUN: %clang_cc1 -x c++-header -emit-pch -std=c++11 -o %t %S/Inputs/cxx11-statement-attributes.h
+// RUN: %clang_cc1 -include-pch %t -std=c++11 -Wimplicit-fallthrough -fsyntax-only %s -o - -verify
+
+// Warning from Inputs/cxx11-statement-attributes.h:
+// expected-warning at 10 {{fallthrough annotation does not directly precede switch label}}
+
+void g(int n) {
+  f<1>(n);  // expected-note {{in instantiation of function template specialization 'f<1>' requested here}}
+}
Index: tools/clang/test/PCH/Inputs/cxx11-statement-attributes.h
===================================================================
--- tools/clang/test/PCH/Inputs/cxx11-statement-attributes.h
+++ tools/clang/test/PCH/Inputs/cxx11-statement-attributes.h
@@ -0,0 +1,14 @@
+// To be used with cxx11-statement-attributes.cpp.
+template<const int N>
+int f(int n) {
+  switch (n * N) {
+    case 0:
+      n += 15;
+      [[clang::fallthrough]];  // This shouldn't generate a warning.
+    case 1:
+      n += 20;
+      [[clang::fallthrough]];  // This should generate a warning: "fallthrough annotation does not directly precede switch label".
+      break;
+  }
+  return n;
+}
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