Move the eliminateCallFramePseudoInstr method from TargetRegisterInfo

to TargetFrameLowering, where it belongs. Incidentally, this allows us
to delete some duplicated (and slightly different!) code in TRI.

There are potentially other layering problems that can be cleaned up
as a result, or in a similar manner.

The refactoring was OK'd by Anton Korobeynikov on llvmdev.

Note: this touches the target interfaces, so out-of-tree targets may
be affected.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175788 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 52 deletions

diff --git a/lib/Target/XCore/XCoreRegisterInfo.cpp b/lib/Target/XCore/XCoreRegisterInfo.cpp
index 01749a8987..49b563497c 100644
--- a/lib/Target/XCore/XCoreRegisterInfo.cpp
+++ b/lib/Target/XCore/XCoreRegisterInfo.cpp
@@ -101,58 +101,6 @@ XCoreRegisterInfo::useFPForScavengingIndex(const MachineFunction &MF) const {
   return false;
 }
 
-// This function eliminates ADJCALLSTACKDOWN,
-// ADJCALLSTACKUP pseudo instructions
-void XCoreRegisterInfo::
-eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
-                              MachineBasicBlock::iterator I) const {
-  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
-
-  if (!TFI->hasReservedCallFrame(MF)) {
-    // Turn the adjcallstackdown instruction into 'extsp <amt>' and the
-    // adjcallstackup instruction into 'ldaw sp, sp[<amt>]'
-    MachineInstr *Old = I;
-    uint64_t Amount = Old->getOperand(0).getImm();
-    if (Amount != 0) {
-      // We need to keep the stack aligned properly.  To do this, we round the
-      // amount of space needed for the outgoing arguments up to the next
-      // alignment boundary.
-      unsigned Align = TFI->getStackAlignment();
-      Amount = (Amount+Align-1)/Align*Align;
-
-      assert(Amount%4 == 0);
-      Amount /= 4;
-
-      bool isU6 = isImmU6(Amount);
-      if (!isU6 && !isImmU16(Amount)) {
-        // FIX could emit multiple instructions in this case.
-#ifndef NDEBUG
-        errs() << "eliminateCallFramePseudoInstr size too big: "
-               << Amount << "\n";
-#endif
-        llvm_unreachable(0);
-      }
-
-      MachineInstr *New;
-      if (Old->getOpcode() == XCore::ADJCALLSTACKDOWN) {
-        int Opcode = isU6 ? XCore::EXTSP_u6 : XCore::EXTSP_lu6;
-        New=BuildMI(MF, Old->getDebugLoc(), TII.get(Opcode))
-          .addImm(Amount);
-      } else {
-        assert(Old->getOpcode() == XCore::ADJCALLSTACKUP);
-        int Opcode = isU6 ? XCore::LDAWSP_ru6_RRegs : XCore::LDAWSP_lru6_RRegs;
-        New=BuildMI(MF, Old->getDebugLoc(), TII.get(Opcode), XCore::SP)
-          .addImm(Amount);
-      }
-
-      // Replace the pseudo instruction with a new instruction...
-      MBB.insert(I, New);
-    }
-  }
-  
-  MBB.erase(I);
-}
-
 void
 XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
                                        int SPAdj, unsigned FIOperandNum,