From 222e2a7620e6520ffaf4fc4e69d79c18da31542e Mon Sep 17 00:00:00 2001
From: "Zancanaro; Carlo" <czan8762@plang3.cs.usyd.edu.au>
Date: Mon, 24 Sep 2012 09:58:17 +1000
Subject: Add the clang library to the repo (with some of my changes, too).

---
 clang/test/CodeGenCXX/mangle-template.cpp | 172 ++++++++++++++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 clang/test/CodeGenCXX/mangle-template.cpp

(limited to 'clang/test/CodeGenCXX/mangle-template.cpp')

diff --git a/clang/test/CodeGenCXX/mangle-template.cpp b/clang/test/CodeGenCXX/mangle-template.cpp
new file mode 100644
index 0000000..05c3a58
--- /dev/null
+++ b/clang/test/CodeGenCXX/mangle-template.cpp
@@ -0,0 +1,172 @@
+// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
+namespace test1 {
+int x;
+template <int& D> class T { };
+// CHECK: void @_ZN5test12f0ENS_1TILZNS_1xEEEE(
+void f0(T<x> a0) {}
+}
+
+namespace test1 {
+// CHECK: void @_ZN5test12f0Ef
+void f0(float) {}
+template<void (&)(float)> struct t1 {};
+// CHECK: void @_ZN5test12f1ENS_2t1ILZNS_2f0EfEEE(
+void f1(t1<f0> a0) {}
+}
+
+namespace test2 {
+// CHECK: void @_ZN5test22f0Ef
+void f0(float) {}
+template<void (*)(float)> struct t1 {};
+// FIXME: Fails because we don't treat as an expression.
+// CHECK-FIXME: void @_ZN5test22f1ENS_2t1IXadL_ZNS_2f0EfEEEE(
+void f1(t1<f0> a0) {}
+}
+
+namespace test3 {
+// CHECK: void @test3_f0
+extern "C" void test3_f0(float) {}
+template<void (&)(float)> struct t1 {};
+// FIXME: Fails because we tack on a namespace.
+// CHECK-FIXME: void @_ZN5test32f1ENS_2t1ILZ8test3_f0EEE(
+void f1(t1<test3_f0> a0) {}
+}
+
+namespace test4 {
+// CHECK: void @test4_f0
+extern "C" void test4_f0(float) {}
+template<void (*)(float)> struct t1 {};
+// FIXME: Fails because we don't treat as an expression.
+// CHECK-FIXME: void @_ZN5test42f1ENS_2t1IXadL_Z8test4_f0EEEE(
+void f1(t1<test4_f0> a0) {}
+}
+
+// CHECK: void @test5_f0
+extern "C" void test5_f0(float) {}
+int main(int) {}
+
+namespace test5 {
+template<void (&)(float)> struct t1 {};
+// CHECK: void @_ZN5test52f1ENS_2t1ILZ8test5_f0EEE(
+void f1(t1<test5_f0> a0) {}
+
+template<int (&)(int)> struct t2 {};
+// CHECK: void @_ZN5test52f2ENS_2t2ILZ4mainEEE
+void f2(t2<main> a0) {}
+}
+
+// FIXME: This fails.
+namespace test6 {
+struct A { void im0(float); };
+// CHECK: void @_ZN5test61A3im0Ef
+void A::im0(float) {}
+template <void(A::*)(float)> class T { };
+// FIXME: Fails because we don't treat as an expression.
+// CHECK-FAIL: void @_ZN5test62f0ENS_1TIXadL_ZNS_1A3im0EfEEEE(
+void f0(T<&A::im0> a0) {}
+}
+
+namespace test7 {
+  template<typename T>
+  struct meta {
+    static const unsigned value = sizeof(T);
+  };
+
+  template<unsigned> struct int_c { 
+    typedef float type;
+  };
+
+  template<typename T>
+  struct X {
+    template<typename U>
+    X(U*, typename int_c<(meta<T>::value + meta<U>::value)>::type *) { }
+  };
+
+  // CHECK: define weak_odr {{.*}} @_ZN5test71XIiEC1IdEEPT_PNS_5int_cIXplL_ZNS_4metaIiE5valueEEsr4metaIS3_EE5valueEE4typeE(%"struct.test7::X"* %this, double*, float*) unnamed_addr
+  template X<int>::X(double*, float*);
+}
+
+namespace test8 {
+  template<typename T>
+  struct meta {
+    struct type {
+      static const unsigned value = sizeof(T);
+    };
+  };
+
+  template<unsigned> struct int_c { 
+    typedef float type;
+  };
+
+  template<typename T>
+  void f(int_c<meta<T>::type::value>) { }
+
+  // CHECK: define weak_odr void @_ZN5test81fIiEEvNS_5int_cIXsr4metaIT_E4typeE5valueEEE
+  template void f<int>(int_c<sizeof(int)>);
+}
+
+namespace test9 {
+  template<typename T>
+  struct supermeta {
+    template<typename U>
+    struct apply {
+      typedef T U::*type;
+    };
+  };
+
+  struct X { };
+
+  template<typename T, typename U>
+  typename supermeta<T>::template apply<U>::type f();
+
+  void test_f() {
+    // CHECK: @_ZN5test91fIiNS_1XEEENS_9supermetaIT_E5applyIT0_E4typeEv()
+    // Note: GCC incorrectly mangles this as
+    // _ZN5test91fIiNS_1XEEENS_9supermetaIT_E5apply4typeEv, while EDG
+    // gets it right.
+    f<int, X>();
+  }
+}
+
+namespace test10 {
+  template<typename T>
+  struct X {
+    template<typename U>
+    struct definition {
+    };
+  };
+
+  // CHECK: _ZN6test101fIidEENS_1XIT_E10definitionIT0_EES2_S5_
+  template<typename T, typename U>
+  typename X<T>::template definition<U> f(T, U) { }
+
+  void g(int i, double d) {
+    f(i, d);
+  }
+}
+
+// Report from Jason Merrill on cxx-abi-dev, 2012.01.04.
+namespace test11 {
+  int cmp(char a, char b);
+  template <typename T, int (*cmp)(T, T)> struct A {};
+  template <typename T> void f(A<T,cmp> &) {}
+  template void f<char>(A<char,cmp> &);
+  // CHECK: @_ZN6test111fIcEEvRNS_1AIT_L_ZNS_3cmpEccEEE(
+}
+
+namespace test12 {
+  // Make sure we can mangle non-type template args with internal linkage.
+  static int f();
+  const int n = 10;
+  template<typename T, T v> void test() {}
+  void use() {
+    // CHECK: define internal void @_ZN6test124testIFivEXadL_ZNS_L1fEvEEEEvv(
+    test<int(), &f>();
+    // CHECK: define internal void @_ZN6test124testIRFivEXadL_ZNS_L1fEvEEEEvv(
+    test<int(&)(), f>();
+    // CHECK: define internal void @_ZN6test124testIPKiXadL_ZNS_L1nEEEEEvv(
+    test<const int*, &n>();
+    // CHECK: define internal void @_ZN6test124testIRKiXadL_ZNS_L1nEEEEEvv(
+    test<const int&, n>();
+  }
+}
-- 
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