[llvm-commits] [llvm] r75969 - /llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.cpp

[Anton Korobeynikov]

Author: asl
Date: Thu Jul 16 09:01:27 2009
New Revision: 75969

URL: http://llvm.org/viewvc/llvm-project?rev=75969&view=rev
Log:
Provide hooks for spilling / restoring stuff

Modified:
    llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.cpp

Modified: llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.cpp?rev=75969&r1=75968&r2=75969&view=diff

==============================================================================
--- llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/SystemZ/SystemZInstrInfo.cpp Thu Jul 16 09:01:27 2009
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "SystemZ.h"
+#include "SystemZInstrBuilder.h"
 #include "SystemZInstrInfo.h"
 #include "SystemZMachineFunctionInfo.h"
 #include "SystemZTargetMachine.h"
@@ -55,14 +56,41 @@
                                           MachineBasicBlock::iterator MI,
                                     unsigned SrcReg, bool isKill, int FrameIdx,
                                     const TargetRegisterClass *RC) const {
-  assert(0 && "Cannot store this register to stack slot!");
+  DebugLoc DL = DebugLoc::getUnknownLoc();
+  if (MI != MBB.end()) DL = MI->getDebugLoc();
+
+  unsigned Opc = 0;
+  if (RC == &SystemZ::GR32RegClass ||
+      RC == &SystemZ::ADDR32RegClass)
+    Opc = SystemZ::MOV32mr;
+  else if (RC == &SystemZ::GR64RegClass ||
+           RC == &SystemZ::ADDR64RegClass) {
+    Opc = SystemZ::MOV64mr;
+  } else
+    assert(0 && "Unsupported regclass to store");
+
+  addFrameReference(BuildMI(MBB, MI, DL, get(Opc)), FrameIdx)
+    .addReg(SrcReg, getKillRegState(isKill));
 }
 
 void SystemZInstrInfo::loadRegFromStackSlot(MachineBasicBlock &MBB,
                                            MachineBasicBlock::iterator MI,
                                            unsigned DestReg, int FrameIdx,
                                            const TargetRegisterClass *RC) const{
-  assert(0 && "Cannot store this register to stack slot!");
+  DebugLoc DL = DebugLoc::getUnknownLoc();
+  if (MI != MBB.end()) DL = MI->getDebugLoc();
+
+  unsigned Opc = 0;
+  if (RC == &SystemZ::GR32RegClass ||
+      RC == &SystemZ::ADDR32RegClass)
+    Opc = SystemZ::MOV32rm;
+  else if (RC == &SystemZ::GR64RegClass ||
+           RC == &SystemZ::ADDR64RegClass) {
+    Opc = SystemZ::MOV64rm;
+  } else
+    assert(0 && "Unsupported regclass to store");
+
+  addFrameReference(BuildMI(MBB, MI, DL, get(Opc), DestReg), FrameIdx);
 }
 
 bool SystemZInstrInfo::copyRegToReg(MachineBasicBlock &MBB,