add an API so target-independent codegen can determine if a constant
pool entry will require relocations against it. I implemented this
conservatively for ARM, someone who is knowledgable about it should
see if this can be improved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76678 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 599efb8..e6ae7dc 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -539,10 +539,29 @@
const Type *MachineConstantPoolEntry::getType() const {
if (isMachineConstantPoolEntry())
- return Val.MachineCPVal->getType();
+ return Val.MachineCPVal->getType();
return Val.ConstVal->getType();
}
+
+unsigned MachineConstantPoolEntry::getRelocatationInfo() const {
+ if (isMachineConstantPoolEntry())
+ return Val.MachineCPVal->getRelocatationInfo();
+
+ // FIXME: This API sucks.
+
+ // If no relocations, return 0.
+ if (!Val.ConstVal->ContainsRelocations())
+ return 0;
+
+ // If it contains no global relocations, return 1.
+ if (!Val.ConstVal->ContainsRelocations(Reloc::Global))
+ return 1;
+
+ // Otherwise, it has general relocations.
+ return 2;
+}
+
MachineConstantPool::~MachineConstantPool() {
for (unsigned i = 0, e = Constants.size(); i != e; ++i)
if (Constants[i].isMachineConstantPoolEntry())