commit 32d1bb9fe7eadcd5088e8048cfd952fc6178604e
author Evan Cheng <evan.cheng@apple.com> Sat May 22 01:47:14 2010 +0000
committer Evan Cheng <evan.cheng@apple.com> Sat May 22 01:47:14 2010 +0000
tree 03c6a5233110f4bf94d5c13134bc803e1dbbdd3c
parent 237b7dd26af11c4e0e8d1acc829cf12bfb50cd1a

Implement @llvm.returnaddress. rdar://8015977.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104421 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86ISelLowering.cpp

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 87d1670..c0813f3 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -6981,6 +6981,9 @@
 
 SDValue X86TargetLowering::LowerRETURNADDR(SDValue Op,
                                            SelectionDAG &DAG) const {
+  MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+  MFI->setReturnAddressIsTaken(true);
+
   unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();
   DebugLoc dl = Op.getDebugLoc();
 
@@ -7004,6 +7007,7 @@
 SDValue X86TargetLowering::LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const {
   MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
   MFI->setFrameAddressIsTaken(true);
+
   EVT VT = Op.getValueType();
   DebugLoc dl = Op.getDebugLoc();  // FIXME probably not meaningful
   unsigned Depth = cast<ConstantSDNode>(Op.getOperand(0))->getZExtValue();

lib/Target/X86/X86InstrInfo.cpp

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 4713649..d4f4122 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -2258,7 +2258,8 @@
 
 bool X86InstrInfo::spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                              MachineBasicBlock::iterator MI,
-                                const std::vector<CalleeSavedInfo> &CSI) const {
+                                        const std::vector<CalleeSavedInfo> &CSI,
+                                          const TargetRegisterInfo *TRI) const {
   if (CSI.empty())
     return false;
 
@@ -2297,7 +2298,8 @@
 
 bool X86InstrInfo::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
                                                MachineBasicBlock::iterator MI,
-                                const std::vector<CalleeSavedInfo> &CSI) const {
+                                        const std::vector<CalleeSavedInfo> &CSI,
+                                          const TargetRegisterInfo *TRI) const {
   if (CSI.empty())
     return false;
 

lib/Target/X86/X86InstrInfo.h

diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h
index bd9bb02..62d7c74 100644
--- a/lib/Target/X86/X86InstrInfo.h
+++ b/lib/Target/X86/X86InstrInfo.h
@@ -620,11 +620,13 @@
   
   virtual bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
                                          MachineBasicBlock::iterator MI,
-                                 const std::vector<CalleeSavedInfo> &CSI) const;
+                                        const std::vector<CalleeSavedInfo> &CSI,
+                                         const TargetRegisterInfo *TRI) const;
 
   virtual bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
                                            MachineBasicBlock::iterator MI,
-                                 const std::vector<CalleeSavedInfo> &CSI) const;
+                                        const std::vector<CalleeSavedInfo> &CSI,
+                                           const TargetRegisterInfo *TRI) const;
   
   virtual
   MachineInstr *emitFrameIndexDebugValue(MachineFunction &MF,