[ThinLTO] Remove post-pass metadata linking support

Since we have moved to a model where functions are imported in bulk from
each source module after making summary-based importing decisions, there
is no longer a need to link metadata as a postpass, and all users have
been removed.

This essentially reverts r255909 and follow-on fixes.

llvm-svn: 264763

1 files changed, 1 insertions, 6 deletions

diff --git a/llvm/lib/IR/Metadata.cpp b/llvm/lib/IR/Metadata.cpp
index bcbda13f918..b874308afa3 100644
--- a/llvm/lib/IR/Metadata.cpp
+++ b/llvm/lib/IR/Metadata.cpp
@@ -188,9 +188,6 @@ void ReplaceableMetadataImpl::moveRef(void *Ref, void *New,
 }
 
 void ReplaceableMetadataImpl::replaceAllUsesWith(Metadata *MD) {
-  assert(CanReplace &&
-         "Attempted to replace Metadata marked for no replacement");
-
   if (UseMap.empty())
     return;
 
@@ -550,7 +547,7 @@ void MDNode::decrementUnresolvedOperandCount() {
     resolve();
 }
 
-void MDNode::resolveRecursivelyImpl(bool AllowTemps) {
+void MDNode::resolveCycles() {
   if (isResolved())
     return;
 
@@ -563,8 +560,6 @@ void MDNode::resolveRecursivelyImpl(bool AllowTemps) {
     if (!N)
       continue;
 
-    if (N->isTemporary() && AllowTemps)
-      continue;
     assert(!N->isTemporary() &&
            "Expected all forward declarations to be resolved");
     if (!N->isResolved())