X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=lib%2FIR%2FFunction.cpp;h=7d150bfe89f4cd58449481186ea36f9341022e89;hp=2b439bb46bf7b0cd5f116a79638cbe6d8ff515b7;hb=7b1f1048e86ebf78bb2f04232261813077b541ae;hpb=6e5bbb57e4bd70688e78000d92712496be7105f6

diff --git a/lib/IR/Function.cpp b/lib/IR/Function.cpp
index 2b439bb46bf..7d150bfe89f 100644
--- a/lib/IR/Function.cpp
+++ b/lib/IR/Function.cpp
@@ -248,8 +248,8 @@ void Function::eraseFromParent() {
 
 Function::Function(FunctionType *Ty, LinkageTypes Linkage, const Twine &name,
                    Module *ParentModule)
-    : GlobalObject(PointerType::getUnqual(Ty), Value::FunctionVal, nullptr, 0,
-                   Linkage, name),
+    : GlobalObject(Ty, Value::FunctionVal,
+                   OperandTraits<Function>::op_begin(this), 0, Linkage, name),
       Ty(Ty) {
   assert(FunctionType::isValidReturnType(getReturnType()) &&
          "invalid return type");
@@ -279,6 +279,9 @@ Function::~Function() {
 
   // Remove the function from the on-the-side GC table.
   clearGC();
+
+  // FIXME: needed by operator delete
+  setFunctionNumOperands(1);
 }
 
 void Function::BuildLazyArguments() const {
@@ -331,6 +334,8 @@ void Function::dropAllReferences() {
 
   // Metadata is stored in a side-table.
   clearMetadata();
+
+  setPersonalityFn(nullptr);
 }
 
 void Function::addAttribute(unsigned i, Attribute::AttrKind attr) {
@@ -426,6 +431,10 @@ void Function::copyAttributesFrom(const GlobalValue *Src) {
     setPrologueData(SrcF->getPrologueData());
   else
     setPrologueData(nullptr);
+  if (SrcF->hasPersonalityFn())
+    setPersonalityFn(SrcF->getPersonalityFn());
+  else
+    setPersonalityFn(nullptr);
 }
 
 /// \brief This does the actual lookup of an intrinsic ID which
@@ -837,6 +846,18 @@ bool Intrinsic::isOverloaded(ID id) {
 #undef GET_INTRINSIC_OVERLOAD_TABLE
 }
 
+bool Intrinsic::isLeaf(ID id) {
+  switch (id) {
+  default:
+    return true;
+
+  case Intrinsic::experimental_gc_statepoint:
+  case Intrinsic::experimental_patchpoint_void:
+  case Intrinsic::experimental_patchpoint_i64:
+    return false;
+  }
+}
+
 /// This defines the "Intrinsic::getAttributes(ID id)" method.
 #define GET_INTRINSIC_ATTRIBUTES
 #include "llvm/IR/Intrinsics.gen"
@@ -976,3 +997,22 @@ Optional<uint64_t> Function::getEntryCount() const {
       }
   return None;
 }
+
+void Function::setPersonalityFn(Constant *C) {
+  if (!C) {
+    if (hasPersonalityFn()) {
+      // Note, the num operands is used to compute the offset of the operand, so
+      // the order here matters.  Clearing the operand then clearing the num
+      // operands ensures we have the correct offset to the operand.
+      Op<0>().set(nullptr);
+      setFunctionNumOperands(0);
+    }
+  } else {
+    // Note, the num operands is used to compute the offset of the operand, so
+    // the order here matters.  We need to set num operands to 1 first so that
+    // we get the correct offset to the first operand when we set it.
+    if (!hasPersonalityFn())
+      setFunctionNumOperands(1);
+    Op<0>().set(C);
+  }
+}