Add support for C++0x's range-based for loops, as specified by the C++11 draft standard (N3291).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129541 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 54 insertions, 0 deletions

diff --git a/test/PCH/cxx-for-range.cpp b/test/PCH/cxx-for-range.cpp
new file mode 100644
index 0000000000..5854917da5
--- /dev/null
+++ b/test/PCH/cxx-for-range.cpp
@@ -0,0 +1,19 @@
+// Test this without pch.
+// RUN: %clang_cc1 -std=c++0x -include %S/cxx-for-range.h -fsyntax-only -emit-llvm -o - %s
+
+// Test with pch.
+// RUN: %clang_cc1 -std=c++0x -emit-pch -o %t %S/cxx-for-range.h
+// RUN: %clang_cc1 -std=c++0x -include-pch %t -fsyntax-only -emit-llvm -o - %s 
+
+void h() {
+  f();
+
+  g<int>();
+
+  char a[3] = { 0, 1, 2 };
+  for (auto w : a)
+    for (auto x : S())
+      for (auto y : T())
+        for (auto z : U())
+          ;
+}
diff --git a/test/PCH/cxx-for-range.h b/test/PCH/cxx-for-range.h
new file mode 100644
index 0000000000..f15c7e73df
--- /dev/null
+++ b/test/PCH/cxx-for-range.h
@@ -0,0 +1,35 @@
+// Header for PCH test cxx-for-range.cpp
+
+struct S {
+  int *begin();
+  int *end();
+};
+
+struct T { };
+char *begin(T);
+char *end(T);
+
+struct U { };
+namespace std {
+  char *begin(U);
+  char *end(U);
+}
+
+void f() {
+  char a[3] = { 0, 1, 2 };
+  for (auto w : a)
+    for (auto x : S())
+      for (auto y : T())
+        for (auto z : U())
+          ;
+}
+
+template<typename A>
+void g() {
+  A a[3] = { 0, 1, 2 };
+  for (auto &v : a)
+    for (auto x : S())
+      for (auto y : T())
+        for (auto z : U())
+          ;
+}