[ms-cxxabi] Don't consider function templates for name backrefs
They don't seem to be used for back references, presumably because a
function template is unlikely to reoccur, while a class template name
may reoccur as a type.
This fixes a mangling issue for llvm::hash_combine() in Hashing.h.
Reviewers: timurrrr
Differential Revision: http://llvm-reviews.chandlerc.com/D1078
llvm-svn: 186233
diff --git a/clang/test/CodeGenCXX/mangle-ms-back-references-pr13207.cpp b/clang/test/CodeGenCXX/mangle-ms-back-references-pr13207.cpp
index fbc6492..e10cc8e 100644
--- a/clang/test/CodeGenCXX/mangle-ms-back-references-pr13207.cpp
+++ b/clang/test/CodeGenCXX/mangle-ms-back-references-pr13207.cpp
@@ -107,7 +107,7 @@
void foo(I<A> x) {}
// CHECK: "\01?foo@PR13207@@YAXV?$I@VA@PR13207@@@1@@Z"
void foo2(I<A> x, I<A> y) { }
-// CHECK "\01?foo2@PR13207@@YAXV?$I@VA@PR13207@@@1@0@Z"
+// CHECK: "\01?foo2@PR13207@@YAXV?$I@VA@PR13207@@@1@0@Z"
void bar(J<A,B> x) {}
// CHECK: "\01?bar@PR13207@@YAXV?$J@VA@PR13207@@VB@2@@1@@Z"
void spam(K<A,B,C> x) {}
@@ -163,3 +163,31 @@
// CHECK: "\01?foobar@NC@PR13207@@YAXV?$Y@V?$Y@V?$Y@VX@NA@PR13207@@@NA@PR13207@@@NB@PR13207@@@12@@Z"
}
}
+
+// Function template names are not considered for backreferencing, but normal
+// function names are.
+namespace fn_space {
+struct RetVal { int hash; };
+template <typename T>
+RetVal fun_tmpl(const T &t) { return RetVal(); }
+RetVal fun_normal(int t) { return RetVal(); }
+void fun_instantiate() {
+ fun_normal(1);
+ fun_tmpl(1);
+}
+// CHECK: "\01?fun_normal@fn_space@@YA?AURetVal@1@H@Z"
+// CHECK: "\01??$fun_tmpl@H@fn_space@@YA?AURetVal@0@ABH@Z"
+
+template <typename T, RetVal (*F)(T)>
+RetVal fun_tmpl_recurse(T t) {
+ if (!t)
+ return RetVal();
+ return F(t - 1);
+}
+RetVal ident(int x) { return RetVal(); }
+void fun_instantiate2() {
+ fun_tmpl_recurse<int, fun_tmpl_recurse<int, ident> >(10);
+}
+// CHECK: "\01??$fun_tmpl_recurse@H$1??$fun_tmpl_recurse@H$1?ident@fn_space@@YA?AURetVal@2@H@Z@fn_space@@YA?AURetVal@1@H@Z@fn_space@@YA?AURetVal@0@H@Z"
+// CHECK: "\01??$fun_tmpl_recurse@H$1?ident@fn_space@@YA?AURetVal@2@H@Z@fn_space@@YA?AURetVal@0@H@Z"
+}