Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating

the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52943 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index d8ea207eca..7adf87567d 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -1068,7 +1068,7 @@ PPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
   if (needsFrameMoves) {
     // Mark effective beginning of when frame pointer becomes valid.
     FrameLabelId = MMI->NextLabelID();
-    BuildMI(MBB, MBBI, TII.get(PPC::LABEL)).addImm(FrameLabelId).addImm(0);
+    BuildMI(MBB, MBBI, TII.get(PPC::DBG_LABEL)).addImm(FrameLabelId);
   }
   
   // Adjust stack pointer: r1 += NegFrameSize.
@@ -1177,7 +1177,7 @@ PPCRegisterInfo::emitPrologue(MachineFunction &MF) const {
     
     // Mark effective beginning of when frame pointer is ready.
     unsigned ReadyLabelId = MMI->NextLabelID();
-    BuildMI(MBB, MBBI, TII.get(PPC::LABEL)).addImm(ReadyLabelId).addImm(0);
+    BuildMI(MBB, MBBI, TII.get(PPC::DBG_LABEL)).addImm(ReadyLabelId);
     
     MachineLocation FPDst(HasFP ? (IsPPC64 ? PPC::X31 : PPC::R31) :
                                   (IsPPC64 ? PPC::X1 : PPC::R1));