Allow {e,r}bp as the target of {read,write}_register.
This patch allows the read_register and write_register intrinsics to
read/write the RBP/EBP registers on X86 iff the targeted register is
the frame pointer for the containing function.
Differential Revision: http://reviews.llvm.org/D10977
llvm-svn: 241827
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index dd68cb4..97ece8b 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -1932,7 +1932,8 @@
MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(Op->getOperand(1));
const MDString *RegStr = dyn_cast<MDString>(MD->getMD()->getOperand(0));
unsigned Reg =
- TLI->getRegisterByName(RegStr->getString().data(), Op->getValueType(0));
+ TLI->getRegisterByName(RegStr->getString().data(), Op->getValueType(0),
+ *CurDAG);
SDValue New = CurDAG->getCopyFromReg(
Op->getOperand(0), dl, Reg, Op->getValueType(0));
New->setNodeId(-1);
@@ -1945,7 +1946,8 @@
MDNodeSDNode *MD = dyn_cast<MDNodeSDNode>(Op->getOperand(1));
const MDString *RegStr = dyn_cast<MDString>(MD->getMD()->getOperand(0));
unsigned Reg = TLI->getRegisterByName(RegStr->getString().data(),
- Op->getOperand(2).getValueType());
+ Op->getOperand(2).getValueType(),
+ *CurDAG);
SDValue New = CurDAG->getCopyToReg(
Op->getOperand(0), dl, Reg, Op->getOperand(2));
New->setNodeId(-1);