[PATCH] D24932: Fix PR 30440

[Alex Lorenz via cfe-commits]

arphaman created this revision.
arphaman added a reviewer: DmitryPolukhin.
arphaman added a subscriber: cfe-commits.
arphaman set the repository for this revision to rL LLVM.

This patch fixes PR 30440 by initializing CXXNameMangler's FunctionTypeDepth in the two constructors added in r274222 (The commit that caused this regression).

Repository:
  rL LLVM

https://reviews.llvm.org/D24932

Files:
  lib/AST/ItaniumMangle.cpp
  test/CodeGenCXX/mangle-abi-tag.cpp

Index: test/CodeGenCXX/mangle-abi-tag.cpp
===================================================================
--- test/CodeGenCXX/mangle-abi-tag.cpp
+++ test/CodeGenCXX/mangle-abi-tag.cpp
@@ -219,3 +219,16 @@
 }
 // f19_test(N19::C<N19::A, &N19::foo[abi:B]>, N19::F, N19::D)
 // CHECK-DAG: define void @_Z8f19_testN3N191CINS_1AEXadL_ZNS_3fooB1BES1_NS_1DEEEEENS_1FES2_(
+
+namespace pr30440 {
+
+template<class F> void g(F);
+template<class ...A> auto h(A ...a)->decltype (g (0, g < a > (a) ...)) {
+}
+// CHECK-DAG: define {{.*}} @_ZN7pr304401hIJEEEDTcl1gLi0Espcl1gIL_ZZNS_1hEDpT_E1aEEfp_EEES2_(
+
+void pr30440_test () {
+  h();
+}
+
+}
Index: lib/AST/ItaniumMangle.cpp
===================================================================
--- lib/AST/ItaniumMangle.cpp
+++ lib/AST/ItaniumMangle.cpp
@@ -405,14 +405,14 @@
   CXXNameMangler(CXXNameMangler &Outer, raw_ostream &Out_)
       : Context(Outer.Context), Out(Out_), NullOut(false),
         Structor(Outer.Structor), StructorType(Outer.StructorType),
-        SeqID(Outer.SeqID), AbiTagsRoot(AbiTags),
-        Substitutions(Outer.Substitutions) {}
+        SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth),
+        AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {}
 
   CXXNameMangler(CXXNameMangler &Outer, llvm::raw_null_ostream &Out_)
       : Context(Outer.Context), Out(Out_), NullOut(true),
         Structor(Outer.Structor), StructorType(Outer.StructorType),
-        SeqID(Outer.SeqID), AbiTagsRoot(AbiTags),
-        Substitutions(Outer.Substitutions) {}
+        SeqID(Outer.SeqID), FunctionTypeDepth(Outer.FunctionTypeDepth),
+        AbiTagsRoot(AbiTags), Substitutions(Outer.Substitutions) {}
 
 #if MANGLE_CHECKER
   ~CXXNameMangler() {


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