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-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp233
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diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp b/lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp
deleted file mode 100644
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--- a/lib/CodeGen/SelectionDAG/LegalizeTypesScalarize.cpp
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-//===-- 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());
-}
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