Various fixes to symbols used for Obj-C x86_64 metadata.
- Changed method names to match gcc (categories names still aren't
mangled in).
- Expose correct name for class and metadata symbols (although
-fvisibility=hidden isn't yet correct).
- Remove several things from llvm.used that didn't need to be there
(I suspect this can still be trimmed).
- Don't use asm-prefix extension for _objc_empty_{cache,vtable} (not
needed).
- Hide EH type class info with -fvisibility=hidden
- Change setGlobal[Option]Visibility to not change the visibility of
functions with internal linkage.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68510 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 379ff9b..1dd2c4d 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -99,6 +99,10 @@
/// GlobalValue according to the given clang AST visibility value.
static void setGlobalVisibility(llvm::GlobalValue *GV,
VisibilityAttr::VisibilityTypes Vis) {
+ // Do not change the visibility of internal definitions.
+ if (GV->hasInternalLinkage())
+ return;
+
switch (Vis) {
default: assert(0 && "Unknown visibility!");
case VisibilityAttr::DefaultVisibility:
@@ -115,6 +119,10 @@
static void setGlobalOptionVisibility(llvm::GlobalValue *GV,
LangOptions::VisibilityMode Vis) {
+ // Do not change the visibility of internal definitions.
+ if (GV->hasInternalLinkage())
+ return;
+
switch (Vis) {
default: assert(0 && "Unknown visibility!");
case LangOptions::NonVisibility: