commit 4e703bcecd76359ba842578043c185d420fea3b7
author Hal Finkel <hfinkel@anl.gov> Tue Jan 28 05:32:58 2014 +0000
committer Hal Finkel <hfinkel@anl.gov> Tue Jan 28 05:32:58 2014 +0000
tree 0934c49666c5a11a9aa9a9e851c86dfb5a82f752
parent 74169dcf4540f361a1312d93cfaa29fd0b4929e0

Handle spilling the PPC GPRC_NOR0 register class

GPRC_NOR0 is not a subclass of GPRC (because it also contains the ZERO pseudo
register). As a result, we also need to check for it in the spilling code.

llvm-svn: 200288

llvm/lib/Target/PowerPC/PPCInstrInfo.cpp

diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 8c01629..9e491fa 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -639,12 +639,14 @@
   // update isStoreToStackSlot.
 
   DebugLoc DL;
-  if (PPC::GPRCRegClass.hasSubClassEq(RC)) {
+  if (PPC::GPRCRegClass.hasSubClassEq(RC) ||
+      PPC::GPRC_NOR0RegClass.hasSubClassEq(RC)) {
     NewMIs.push_back(addFrameReference(BuildMI(MF, DL, get(PPC::STW))
                                        .addReg(SrcReg,
                                                getKillRegState(isKill)),
                                        FrameIdx));
-  } else if (PPC::G8RCRegClass.hasSubClassEq(RC)) {
+  } else if (PPC::G8RCRegClass.hasSubClassEq(RC) ||
+             PPC::G8RC_NOX0RegClass.hasSubClassEq(RC)) {
     NewMIs.push_back(addFrameReference(BuildMI(MF, DL, get(PPC::STD))
                                        .addReg(SrcReg,
                                                getKillRegState(isKill)),
@@ -764,10 +766,12 @@
   // Note: If additional load instructions are added here,
   // update isLoadFromStackSlot.
 
-  if (PPC::GPRCRegClass.hasSubClassEq(RC)) {
+  if (PPC::GPRCRegClass.hasSubClassEq(RC) ||
+      PPC::GPRC_NOR0RegClass.hasSubClassEq(RC)) {
     NewMIs.push_back(addFrameReference(BuildMI(MF, DL, get(PPC::LWZ),
                                                DestReg), FrameIdx));
-  } else if (PPC::G8RCRegClass.hasSubClassEq(RC)) {
+  } else if (PPC::G8RCRegClass.hasSubClassEq(RC) ||
+             PPC::G8RC_NOX0RegClass.hasSubClassEq(RC)) {
     NewMIs.push_back(addFrameReference(BuildMI(MF, DL, get(PPC::LD), DestReg),
                                        FrameIdx));
   } else if (PPC::F8RCRegClass.hasSubClassEq(RC)) {