Split type expansion into ExpandInteger and ExpandFloat

rather than bundling them together.  Rename FloatToInt
to PromoteFloat (better, if not perfect).  Reorganize
files by types rather than by operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52408 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 233 deletions

diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp b/lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp
deleted file mode 100644
index 9f758ff088..0000000000
--- a/lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp
+++ /dev/null
@@ -1,233 +0,0 @@
-//===-- LegalizeTypesScalarize.cpp - Scalarization for LegalizeTypes ------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements scalarization support for LegalizeTypes.  Scalarization
-// is the act of changing a computation in an invalid single-element vector type
-// to be a computation in its scalar element type.  For example, implementing
-// <1 x f32> arithmetic in a scalar f32 register.  This is needed as a base case
-// when scalarizing vector arithmetic like <4 x f32>, which eventually
-// decomposes to scalars if the target doesn't support v4f32 or v2f32 types.
-//
-//===----------------------------------------------------------------------===//
-
-#include "LegalizeTypes.h"
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//  Result Vector Scalarization: <1 x ty> -> ty.
-//===----------------------------------------------------------------------===//
-
-void DAGTypeLegalizer::ScalarizeResult(SDNode *N, unsigned ResNo) {
-  DEBUG(cerr << "Scalarize node result " << ResNo << ": "; N->dump(&DAG); 
-        cerr << "\n");
-  SDOperand R = SDOperand();
-  
-  // FIXME: Custom lowering for scalarization?
-#if 0
-  // See if the target wants to custom expand this node.
-  if (TLI.getOperationAction(N->getOpcode(), N->getValueType(0)) == 
-      TargetLowering::Custom) {
-    // If the target wants to, allow it to lower this itself.
-    if (SDNode *P = TLI.ExpandOperationResult(N, DAG)) {
-      // Everything that once used N now uses P.  We are guaranteed that the
-      // result value types of N and the result value types of P match.
-      ReplaceNodeWith(N, P);
-      return;
-    }
-  }
-#endif
-  
-  switch (N->getOpcode()) {
-  default:
-#ifndef NDEBUG
-    cerr << "ScalarizeResult #" << ResNo << ": ";
-    N->dump(&DAG); cerr << "\n";
-#endif
-    assert(0 && "Do not know how to scalarize the result of this operator!");
-    abort();
-    
-  case ISD::UNDEF:       R = ScalarizeRes_UNDEF(N); break;
-  case ISD::LOAD:        R = ScalarizeRes_LOAD(cast<LoadSDNode>(N)); break;
-  case ISD::ADD:
-  case ISD::FADD:
-  case ISD::SUB:
-  case ISD::FSUB:
-  case ISD::MUL:
-  case ISD::FMUL:
-  case ISD::SDIV:
-  case ISD::UDIV:
-  case ISD::FDIV:
-  case ISD::SREM:
-  case ISD::UREM:
-  case ISD::FREM:
-  case ISD::FPOW:
-  case ISD::AND:
-  case ISD::OR:
-  case ISD::XOR:         R = ScalarizeRes_BinOp(N); break;
-  case ISD::FNEG:
-  case ISD::FABS:
-  case ISD::FSQRT:
-  case ISD::FSIN:
-  case ISD::FCOS:              R = ScalarizeRes_UnaryOp(N); break;
-  case ISD::FPOWI:             R = ScalarizeRes_FPOWI(N); break;
-  case ISD::BUILD_VECTOR:      R = N->getOperand(0); break;
-  case ISD::INSERT_VECTOR_ELT: R = ScalarizeRes_INSERT_VECTOR_ELT(N); break;
-  case ISD::VECTOR_SHUFFLE:    R = ScalarizeRes_VECTOR_SHUFFLE(N); break;
-  case ISD::BIT_CONVERT:       R = ScalarizeRes_BIT_CONVERT(N); break;
-  case ISD::SELECT:            R = ScalarizeRes_SELECT(N); break;
-  }
-  
-  // If R is null, the sub-method took care of registering the result.
-  if (R.Val)
-    SetScalarizedOp(SDOperand(N, ResNo), R);
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_UNDEF(SDNode *N) {
-  return DAG.getNode(ISD::UNDEF, N->getValueType(0).getVectorElementType());
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_LOAD(LoadSDNode *N) {
-  // FIXME: Add support for indexed loads.
-  SDOperand Result = DAG.getLoad(N->getValueType(0).getVectorElementType(),
-                                 N->getChain(), N->getBasePtr(), 
-                                 N->getSrcValue(), N->getSrcValueOffset(),
-                                 N->isVolatile(), N->getAlignment());
-  
-  // Legalized the chain result - switch anything that used the old chain to
-  // use the new one.
-  ReplaceValueWith(SDOperand(N, 1), Result.getValue(1));
-  return Result;
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_BinOp(SDNode *N) {
-  SDOperand LHS = GetScalarizedOp(N->getOperand(0));
-  SDOperand RHS = GetScalarizedOp(N->getOperand(1));
-  return DAG.getNode(N->getOpcode(), LHS.getValueType(), LHS, RHS);
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_UnaryOp(SDNode *N) {
-  SDOperand Op = GetScalarizedOp(N->getOperand(0));
-  return DAG.getNode(N->getOpcode(), Op.getValueType(), Op);
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_FPOWI(SDNode *N) {
-  SDOperand Op = GetScalarizedOp(N->getOperand(0));
-  return DAG.getNode(ISD::FPOWI, Op.getValueType(), Op, N->getOperand(1));
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_INSERT_VECTOR_ELT(SDNode *N) {
-  // The value to insert may have a wider type than the vector element type,
-  // so be sure to truncate it to the element type if necessary.
-  SDOperand Op = N->getOperand(1);
-  MVT EltVT = N->getValueType(0).getVectorElementType();
-  if (Op.getValueType().bitsGT(EltVT))
-    Op = DAG.getNode(ISD::TRUNCATE, EltVT, Op);
-  assert(Op.getValueType() == EltVT && "Invalid type for inserted value!");
-  return Op;
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_VECTOR_SHUFFLE(SDNode *N) {
-  // Figure out if the scalar is the LHS or RHS and return it.
-  SDOperand EltNum = N->getOperand(2).getOperand(0);
-  unsigned Op = cast<ConstantSDNode>(EltNum)->getValue() != 0;
-  return GetScalarizedOp(N->getOperand(Op));
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_BIT_CONVERT(SDNode *N) {
-  MVT NewVT = N->getValueType(0).getVectorElementType();
-  return DAG.getNode(ISD::BIT_CONVERT, NewVT, N->getOperand(0));
-}
-
-SDOperand DAGTypeLegalizer::ScalarizeRes_SELECT(SDNode *N) {
-  SDOperand LHS = GetScalarizedOp(N->getOperand(1));
-  return DAG.getNode(ISD::SELECT, LHS.getValueType(), N->getOperand(0), LHS,
-                     GetScalarizedOp(N->getOperand(2)));
-}
-
-
-//===----------------------------------------------------------------------===//
-//  Operand Vector Scalarization <1 x ty> -> ty.
-//===----------------------------------------------------------------------===//
-
-bool DAGTypeLegalizer::ScalarizeOperand(SDNode *N, unsigned OpNo) {
-  DEBUG(cerr << "Scalarize node operand " << OpNo << ": "; N->dump(&DAG); 
-        cerr << "\n");
-  SDOperand Res(0, 0);
-  
-  // FIXME: Should we support custom lowering for scalarization?
-#if 0
-  if (TLI.getOperationAction(N->getOpcode(), N->getValueType(0)) == 
-      TargetLowering::Custom)
-    Res = TLI.LowerOperation(SDOperand(N, 0), DAG);
-#endif
-  
-  if (Res.Val == 0) {
-    switch (N->getOpcode()) {
-    default:
-#ifndef NDEBUG
-      cerr << "ScalarizeOperand Op #" << OpNo << ": ";
-      N->dump(&DAG); cerr << "\n";
-#endif
-      assert(0 && "Do not know how to scalarize this operator's operand!");
-      abort();
-      
-    case ISD::BIT_CONVERT:
-      Res = ScalarizeOp_BIT_CONVERT(N); break;
-
-    case ISD::EXTRACT_VECTOR_ELT:
-      Res = ScalarizeOp_EXTRACT_VECTOR_ELT(N); break;
-
-    case ISD::STORE:
-      Res = ScalarizeOp_STORE(cast<StoreSDNode>(N), OpNo); break;
-    }
-  }
-  
-  // If the result is null, the sub-method took care of registering results etc.
-  if (!Res.Val) return false;
-  
-  // If the result is N, the sub-method updated N in place.  Check to see if any
-  // operands are new, and if so, mark them.
-  if (Res.Val == N) {
-    // Mark N as new and remark N and its operands.  This allows us to correctly
-    // revisit N if it needs another step of promotion and allows us to visit
-    // any new operands to N.
-    ReanalyzeNode(N);
-    return true;
-  }
-
-  assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 &&
-         "Invalid operand expansion");
-  
-  ReplaceValueWith(SDOperand(N, 0), Res);
-  return false;
-}
-
-/// ScalarizeOp_BIT_CONVERT - If the value to convert is a vector that needs
-/// to be scalarized, it must be <1 x ty>.  Convert the element instead.
-SDOperand DAGTypeLegalizer::ScalarizeOp_BIT_CONVERT(SDNode *N) {
-  SDOperand Elt = GetScalarizedOp(N->getOperand(0));
-  return DAG.getNode(ISD::BIT_CONVERT, N->getValueType(0), Elt);
-}
-
-/// ScalarizeOp_EXTRACT_VECTOR_ELT - If the input is a vector that needs to be
-/// scalarized, it must be <1 x ty>, so just return the element, ignoring the
-/// index.
-SDOperand DAGTypeLegalizer::ScalarizeOp_EXTRACT_VECTOR_ELT(SDNode *N) {
-  return GetScalarizedOp(N->getOperand(0));
-}
-
-/// ScalarizeOp_STORE - If the value to store is a vector that needs to be
-/// scalarized, it must be <1 x ty>.  Just store the element.
-SDOperand DAGTypeLegalizer::ScalarizeOp_STORE(StoreSDNode *N, unsigned OpNo) {
-  // FIXME: Add support for indexed stores.
-  assert(OpNo == 1 && "Do not know how to scalarize this operand!");
-  return DAG.getStore(N->getChain(), GetScalarizedOp(N->getOperand(1)),
-                      N->getBasePtr(), N->getSrcValue(), N->getSrcValueOffset(),
-                      N->isVolatile(), N->getAlignment());
-}