Compute isFunctionLocal in MDNode ctor or via argument in new function getWhenValsUnresolved().

Document PFS argument to ParseValID() and ConvertGlobalOrMetadataValIDToValue().



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93108 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 32 insertions, 3 deletions

diff --git a/lib/VMCore/Metadata.cpp b/lib/VMCore/Metadata.cpp
index 87ffaff572..fb1da998ad 100644
--- a/lib/VMCore/Metadata.cpp
+++ b/lib/VMCore/Metadata.cpp
@@ -128,9 +128,8 @@ void MDNode::destroy() {
   free(this);
 }
 
-
-MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals,
-                    bool isFunctionLocal) {
+MDNode *MDNode::getMDNode(LLVMContext &Context, Value *const *Vals,
+                          unsigned NumVals, FunctionLocalness FL) {
   LLVMContextImpl *pImpl = Context.pImpl;
   FoldingSetNodeID ID;
   for (unsigned i = 0; i != NumVals; ++i)
@@ -139,6 +138,27 @@ MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals,
   void *InsertPoint;
   MDNode *N = pImpl->MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint);
   if (!N) {
+    bool isFunctionLocal = false;
+    switch (FL) {
+    case FL_Unknown:
+      for (unsigned i = 0; i != NumVals; ++i) {
+        Value *V = Vals[i];
+        if (!V) continue;
+        if (isa<Instruction>(V) || isa<Argument>(V) || isa<BasicBlock>(V) ||
+            isa<MDNode>(V) && cast<MDNode>(V)->isFunctionLocal()) {
+          isFunctionLocal = true;
+          break;
+        }
+      }
+      break;
+    case FL_No:
+      isFunctionLocal = false;
+      break;
+    case FL_Yes:
+      isFunctionLocal = true;
+      break;
+    }
+
     // Coallocate space for the node and Operands together, then placement new.
     void *Ptr = malloc(sizeof(MDNode)+NumVals*sizeof(MDNodeOperand));
     N = new (Ptr) MDNode(Context, Vals, NumVals, isFunctionLocal);
@@ -149,6 +169,15 @@ MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals,
   return N;
 }
 
+MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals) {
+  return getMDNode(Context, Vals, NumVals, FL_Unknown);
+}
+
+MDNode *MDNode::getWhenValsUnresolved(LLVMContext &Context, Value*const* Vals,
+                                      unsigned NumVals, bool isFunctionLocal) {
+  return getMDNode(Context, Vals, NumVals, isFunctionLocal ? FL_Yes : FL_No);
+}
+
 /// getOperand - Return specified operand.
 Value *MDNode::getOperand(unsigned i) const {
   return *getOperandPtr(const_cast<MDNode*>(this), i);