Add method to assign stack slot to virtual register without creating a
new one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13895 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 7e8e416..5cec9e9 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -61,6 +61,14 @@
return frameIndex;
}
+void VirtRegMap::assignVirt2StackSlot(unsigned virtReg, int frameIndex)
+{
+ assert(MRegisterInfo::isVirtualRegister(virtReg));
+ assert(v2ssMap_[virtReg] == NO_STACK_SLOT &&
+ "attempt to assign stack slot to already spilled register");
+ v2ssMap_[virtReg] = frameIndex;
+}
+
void VirtRegMap::virtFolded(unsigned virtReg,
MachineInstr* oldMI,
MachineInstr* newMI)