From 38af59a43c4176d8f34bd26faeb18b23080a1d9b Mon Sep 17 00:00:00 2001
From: Alkis Evlogimenos <alkis@evlogimenos.com>
Date: Sat, 29 May 2004 20:38:05 +0000
Subject: [PATCH] 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
---
lib/CodeGen/VirtRegMap.cpp | 8 ++++++++
lib/CodeGen/VirtRegMap.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 7e8e416034c..5cec9e97c6e 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -61,6 +61,14 @@ int VirtRegMap::assignVirt2StackSlot(unsigned virtReg)
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)
diff --git a/lib/CodeGen/VirtRegMap.h b/lib/CodeGen/VirtRegMap.h
index c4188bcfbcd..e9bfe76d4bf 100644
--- a/lib/CodeGen/VirtRegMap.h
+++ b/lib/CodeGen/VirtRegMap.h
@@ -97,6 +97,7 @@ namespace llvm {
}
int assignVirt2StackSlot(unsigned virtReg);
+ void assignVirt2StackSlot(unsigned virtReg, int frameIndex);
void virtFolded(unsigned virtReg,
MachineInstr* oldMI,