Simplify eliminateFrameIndex() interface back down now that PEI doesn't need

to try to re-use scavenged frame index reference registers. rdar://8277890

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112241 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 8 insertions, 11 deletions

diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index 113c9fd82b..653e143ba4 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -580,10 +580,9 @@ void PPCRegisterInfo::lowerCRSpilling(MachineBasicBlock::iterator II,
   MBB.erase(II);
 }
 
-unsigned
+void
 PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
-                                     int SPAdj, FrameIndexValue *Value,
-                                     RegScavenger *RS) const {
+                                     int SPAdj, RegScavenger *RS) const {
   assert(SPAdj == 0 && "Unexpected");
 
   // Get the instruction.
@@ -622,14 +621,14 @@ PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
   if (FPSI && FrameIndex == FPSI &&
       (OpC == PPC::DYNALLOC || OpC == PPC::DYNALLOC8)) {
     lowerDynamicAlloc(II, SPAdj, RS);
-    return 0;
+    return;
   }
 
   // Special case for pseudo-op SPILL_CR.
   if (EnableRegisterScavenging) // FIXME (64-bit): Enable by default.
     if (OpC == PPC::SPILL_CR) {
       lowerCRSpilling(II, FrameIndex, SPAdj, RS);
-      return 0;
+      return;
     }
 
   // Replace the FrameIndex with base register with GPR1 (SP) or GPR31 (FP).
@@ -674,7 +673,7 @@ PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
     if (isIXAddr)
       Offset >>= 2;    // The actual encoded value has the low two bits zero.
     MI.getOperand(OffsetOperandNo).ChangeToImmediate(Offset);
-    return 0;
+    return;
   }
 
   // The offset doesn't fit into a single register, scavenge one to build the
@@ -710,11 +709,10 @@ PPCRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
   } else {
     OperandBase = OffsetOperandNo;
   }
-    
+
   unsigned StackReg = MI.getOperand(FIOperandNo).getReg();
   MI.getOperand(OperandBase).ChangeToRegister(StackReg, false);
   MI.getOperand(OperandBase + 1).ChangeToRegister(SReg, false);
-  return 0;
 }
 
 /// VRRegNo - Map from a numbered VR register to its enum value.
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.h b/lib/Target/PowerPC/PPCRegisterInfo.h
index f026847a54..890b24b9c0 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.h
+++ b/lib/Target/PowerPC/PPCRegisterInfo.h
@@ -63,9 +63,8 @@ public:
                          int SPAdj, RegScavenger *RS) const;
   void lowerCRSpilling(MachineBasicBlock::iterator II, unsigned FrameIndex,
                        int SPAdj, RegScavenger *RS) const;
-  unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
-                               int SPAdj, FrameIndexValue *Value = NULL,
-                               RegScavenger *RS = NULL) const;
+  void eliminateFrameIndex(MachineBasicBlock::iterator II,
+                           int SPAdj, RegScavenger *RS = NULL) const;
 
   /// determineFrameLayout - Determine the size of the frame and maximum call
   /// frame size.