Keep track of function template specializations, to eliminate

redundant, implicit instantiations of function templates and provide a
place where we can hang function template specializations.

llvm-svn: 74454

1 files changed, 21 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/function-template-specialization.cpp b/clang/test/CodeGenCXX/function-template-specialization.cpp
new file mode 100644
index 00000000000..685306f8bed
--- /dev/null
+++ b/clang/test/CodeGenCXX/function-template-specialization.cpp
@@ -0,0 +1,21 @@
+// RUN: clang-cc -emit-llvm %s -o -
+template<typename T, typename U>
+T* next(T* ptr, const U& diff);
+
+template<typename T, typename U>
+T* next(T* ptr, const U& diff) { 
+  return ptr + diff; 
+}
+
+void test(int *iptr, float *fptr, int diff) {
+  iptr = next(iptr, diff);
+  fptr = next(fptr, diff);
+}
+
+template<typename T, typename U>
+T* next(T* ptr, const U& diff);
+
+void test2(int *iptr, double *dptr, int diff) {
+  iptr = next(iptr, diff);
+  dptr = next(dptr, diff);
+}
\ No newline at end of file