From f7f3b50cd8c10c20f68045c5322f134bd83b06c7 Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Mon, 4 Aug 2008 07:12:52 +0000
Subject: [PATCH] Mips ISelLowering cleanup : Removed old LowerCALL and
 FORMAL_ARGS helpers, they aren't used anyway, they also used to broke
 compiling when fastcc was specified for a function, but not anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54316 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Mips/MipsISelLowering.cpp | 47 ++++++----------------------
 lib/Target/Mips/MipsISelLowering.h   |  2 --
 2 files changed, 9 insertions(+), 40 deletions(-)

diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 04ef9588a6b..e286df197ca 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -556,34 +556,19 @@ LowerConstantPool(SDValue Op, SelectionDAG &DAG)
 //                  CALL Calling Convention Implementation
 //===----------------------------------------------------------------------===//
 
-/// Mips custom CALL implementation
-SDValue MipsTargetLowering::
-LowerCALL(SDValue Op, SelectionDAG &DAG)
-{
-  unsigned CallingConv = cast<ConstantSDNode>(Op.getOperand(1))->getValue();
-
-  // By now, only CallingConv::C implemented
-  switch (CallingConv) {
-    default:
-      assert(0 && "Unsupported calling convention");
-    case CallingConv::Fast:
-    case CallingConv::C:
-      return LowerCCCCallTo(Op, DAG, CallingConv);
-  }
-}
-
 /// LowerCCCCallTo - functions arguments are copied from virtual
 /// regs to (physical regs)/(stack frame), CALLSEQ_START and
 /// CALLSEQ_END are emitted.
 /// TODO: isVarArg, isTailCall.
 SDValue MipsTargetLowering::
-LowerCCCCallTo(SDValue Op, SelectionDAG &DAG, unsigned CC) 
+LowerCALL(SDValue Op, SelectionDAG &DAG)
 {
   MachineFunction &MF = DAG.getMachineFunction();
 
-  SDValue Chain  = Op.getOperand(0);
+  SDValue Chain = Op.getOperand(0);
   SDValue Callee = Op.getOperand(4);
-  bool isVarArg    = cast<ConstantSDNode>(Op.getOperand(2))->getValue() != 0;
+  bool isVarArg = cast<ConstantSDNode>(Op.getOperand(2))->getValue() != 0;
+  unsigned CC = DAG.getMachineFunction().getFunction()->getCallingConv();
 
   MachineFrameInfo *MFI = MF.getFrameInfo();
 
@@ -786,34 +771,20 @@ LowerCallResult(SDValue Chain, SDValue InFlag, SDNode *TheCall,
 //             FORMAL_ARGUMENTS Calling Convention Implementation
 //===----------------------------------------------------------------------===//
 
-/// Mips custom FORMAL_ARGUMENTS implementation
-SDValue MipsTargetLowering::
-LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) 
-{
-  unsigned CC = cast<ConstantSDNode>(Op.getOperand(1))->getValue();
-  switch(CC) 
-  {
-    default:
-      assert(0 && "Unsupported calling convention");
-    case CallingConv::C:
-      return LowerCCCArguments(Op, DAG);
-  }
-}
-
-/// LowerCCCArguments - transform physical registers into
+/// LowerFORMAL_ARGUMENTS - transform physical registers into
 /// virtual registers and generate load operations for
 /// arguments places on the stack.
 /// TODO: isVarArg
 SDValue MipsTargetLowering::
-LowerCCCArguments(SDValue Op, SelectionDAG &DAG) 
+LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG) 
 {
-  SDValue Root        = Op.getOperand(0);
-  MachineFunction &MF   = DAG.getMachineFunction();
+  SDValue Root = Op.getOperand(0);
+  MachineFunction &MF = DAG.getMachineFunction();
   MachineFrameInfo *MFI = MF.getFrameInfo();
   MipsFunctionInfo *MipsFI = MF.getInfo<MipsFunctionInfo>();
 
   bool isVarArg = cast<ConstantSDNode>(Op.getOperand(2))->getValue() != 0;
-  unsigned CC   = DAG.getMachineFunction().getFunction()->getCallingConv();
+  unsigned CC = DAG.getMachineFunction().getFunction()->getCallingConv();
 
   unsigned StackReg = MF.getTarget().getRegisterInfo()->getFrameRegister(MF);
 
diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h
index a67e2821917..25b11619fd7 100644
--- a/lib/Target/Mips/MipsISelLowering.h
+++ b/lib/Target/Mips/MipsISelLowering.h
@@ -83,8 +83,6 @@ namespace llvm {
     const MipsSubtarget *Subtarget;
 
     // Lower Operand helpers
-    SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
-    SDValue LowerCCCCallTo(SDValue Op, SelectionDAG &DAG, unsigned CC);
     SDNode *LowerCallResult(SDValue Chain, SDValue InFlag, SDNode*TheCall,
                             unsigned CallingConv, SelectionDAG &DAG);
     bool IsGlobalInSmallSection(GlobalValue *GV);