Add 171048 back but invalidate the cache of all redeclarations when setting

the body of a functions. The problem was that hasBody looks at the entire chain
and causes problems to -fvisibility-inlines-hidden if the cache was not
invalidated.

Original message:

Cache visibility of decls.

This unifies the linkage and visibility caching. I first implemented this when
working on pr13844, but the previous fixes removed the performance advantage of
this one.
This is still a step in the right direction for making linkage and visibility
cheap to use.

llvm-svn: 171053

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/visibility-inlines-hidden.cpp b/clang/test/CodeGenCXX/visibility-inlines-hidden.cpp
index 8519c8ced89..0681adda839 100644
--- a/clang/test/CodeGenCXX/visibility-inlines-hidden.cpp
+++ b/clang/test/CodeGenCXX/visibility-inlines-hidden.cpp
@@ -135,3 +135,15 @@ namespace test4 {
   }
   // CHECK: define available_externally void @_ZN5test43fooE
 }
+
+namespace test5 {
+  // just don't crash.
+  template <int> inline void Op();
+  class UnaryInstruction {
+    UnaryInstruction() {
+      Op<0>();
+    }
+  };
+  template <int Idx_nocapture> void Op() {
+  }
+}