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-rw-r--r--llvm/lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp235
-rw-r--r--llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h255
2 files changed, 256 insertions, 234 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp
index aca9cbff0d4..0fcbd6a9072 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAGTypes.cpp
@@ -12,246 +12,13 @@
//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "legalize-types"
-#include "llvm/CodeGen/SelectionDAG.h"
+#include "LegalizeTypes.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
-#include "llvm/Target/TargetLowering.h"
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
using namespace llvm;
-//===----------------------------------------------------------------------===//
-/// DAGTypeLegalizer - This takes an arbitrary SelectionDAG as input and
-/// hacks on it until the target machine can handle it. This involves
-/// eliminating value sizes the machine cannot handle (promoting small sizes to
-/// large sizes or splitting up large values into small values) as well as
-/// eliminating operations the machine cannot handle.
-///
-/// This code also does a small amount of optimization and recognition of idioms
-/// as part of its processing. For example, if a target does not support a
-/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this
-/// will attempt merge setcc and brc instructions into brcc's.
-///
-namespace {
-class VISIBILITY_HIDDEN DAGTypeLegalizer {
- TargetLowering &TLI;
- SelectionDAG &DAG;
-
- // NodeIDFlags - This pass uses the NodeID on the SDNodes to hold information
- // about the state of the node. The enum has all the values.
- enum NodeIDFlags {
- /// ReadyToProcess - All operands have been processed, so this node is ready
- /// to be handled.
- ReadyToProcess = 0,
-
- /// NewNode - This is a new node that was created in the process of
- /// legalizing some other node.
- NewNode = -1,
-
- /// Processed - This is a node that has already been processed.
- Processed = -2
-
- // 1+ - This is a node which has this many unlegalized operands.
- };
-
- enum LegalizeAction {
- Legal, // The target natively supports this type.
- Promote, // This type should be executed in a larger type.
- Expand // This type should be split into two types of half the size.
- };
-
- /// ValueTypeActions - This is a bitvector that contains two bits for each
- /// simple value type, where the two bits correspond to the LegalizeAction
- /// enum. This can be queried with "getTypeAction(VT)".
- TargetLowering::ValueTypeActionImpl ValueTypeActions;
-
- /// getTypeAction - Return how we should legalize values of this type, either
- /// it is already legal or we need to expand it into multiple registers of
- /// smaller integer type, or we need to promote it to a larger type.
- LegalizeAction getTypeAction(MVT::ValueType VT) const {
- return (LegalizeAction)ValueTypeActions.getTypeAction(VT);
- }
-
- /// isTypeLegal - Return true if this type is legal on this target.
- ///
- bool isTypeLegal(MVT::ValueType VT) const {
- return getTypeAction(VT) == Legal;
- }
-
- SDOperand getIntPtrConstant(uint64_t Val) {
- return DAG.getConstant(Val, TLI.getPointerTy());
- }
-
- /// PromotedNodes - For nodes that are below legal width, this map indicates
- /// what promoted value to use.
- DenseMap<SDOperand, SDOperand> PromotedNodes;
-
- /// ExpandedNodes - For nodes that need to be expanded this map indicates
- /// which operands are the expanded version of the input.
- DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes;
-
- /// ScalarizedNodes - For nodes that are <1 x ty>, this map indicates the
- /// scalar value of type 'ty' to use.
- DenseMap<SDOperand, SDOperand> ScalarizedNodes;
-
- /// ReplacedNodes - For nodes that have been replaced with another,
- /// indicates the replacement node to use.
- DenseMap<SDOperand, SDOperand> ReplacedNodes;
-
- /// Worklist - This defines a worklist of nodes to process. In order to be
- /// pushed onto this worklist, all operands of a node must have already been
- /// processed.
- SmallVector<SDNode*, 128> Worklist;
-
-public:
- explicit DAGTypeLegalizer(SelectionDAG &dag)
- : TLI(dag.getTargetLoweringInfo()), DAG(dag),
- ValueTypeActions(TLI.getValueTypeActions()) {
- assert(MVT::LAST_VALUETYPE <= 32 &&
- "Too many value types for ValueTypeActions to hold!");
- }
-
- void run();
-
-private:
- void MarkNewNodes(SDNode *N);
-
- void ReplaceValueWith(SDOperand From, SDOperand To);
- void ReplaceNodeWith(SDNode *From, SDNode *To);
-
- void RemapNode(SDOperand &N);
-
- SDOperand GetPromotedOp(SDOperand Op) {
- SDOperand &PromotedOp = PromotedNodes[Op];
- RemapNode(PromotedOp);
- assert(PromotedOp.Val && "Operand wasn't promoted?");
- return PromotedOp;
- }
- void SetPromotedOp(SDOperand Op, SDOperand Result);
-
- /// GetPromotedZExtOp - Get a promoted operand and zero extend it to the final
- /// size.
- SDOperand GetPromotedZExtOp(SDOperand Op) {
- MVT::ValueType OldVT = Op.getValueType();
- Op = GetPromotedOp(Op);
- return DAG.getZeroExtendInReg(Op, OldVT);
- }
-
- void GetExpandedOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
- void SetExpandedOp(SDOperand Op, SDOperand Lo, SDOperand Hi);
-
- SDOperand GetScalarizedOp(SDOperand Op) {
- SDOperand &ScalarOp = ScalarizedNodes[Op];
- RemapNode(ScalarOp);
- assert(ScalarOp.Val && "Operand wasn't scalarized?");
- return ScalarOp;
- }
- void SetScalarizedOp(SDOperand Op, SDOperand Result);
-
- // Common routines.
- SDOperand CreateStackStoreLoad(SDOperand Op, MVT::ValueType DestVT);
- SDOperand HandleMemIntrinsic(SDNode *N);
- void SplitOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
-
- // Result Promotion.
- void PromoteResult(SDNode *N, unsigned ResNo);
- SDOperand PromoteResult_UNDEF(SDNode *N);
- SDOperand PromoteResult_Constant(SDNode *N);
- SDOperand PromoteResult_TRUNCATE(SDNode *N);
- SDOperand PromoteResult_INT_EXTEND(SDNode *N);
- SDOperand PromoteResult_FP_ROUND(SDNode *N);
- SDOperand PromoteResult_FP_TO_XINT(SDNode *N);
- SDOperand PromoteResult_SETCC(SDNode *N);
- SDOperand PromoteResult_LOAD(LoadSDNode *N);
- SDOperand PromoteResult_SimpleIntBinOp(SDNode *N);
- SDOperand PromoteResult_SDIV(SDNode *N);
- SDOperand PromoteResult_UDIV(SDNode *N);
- SDOperand PromoteResult_SHL(SDNode *N);
- SDOperand PromoteResult_SRA(SDNode *N);
- SDOperand PromoteResult_SRL(SDNode *N);
- SDOperand PromoteResult_SELECT (SDNode *N);
- SDOperand PromoteResult_SELECT_CC(SDNode *N);
-
- // Result Expansion.
- void ExpandResult(SDNode *N, unsigned ResNo);
- void ExpandResult_UNDEF (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_Constant (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_BUILD_PAIR (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_MERGE_VALUES(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ANY_EXTEND (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ZERO_EXTEND(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SIGN_EXTEND(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_BIT_CONVERT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SIGN_EXTEND_INREG(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_LOAD (LoadSDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- void ExpandResult_Logical (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_BSWAP (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ADDSUB (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ADDSUBC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ADDSUBE (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SELECT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SELECT_CC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_MUL (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_Shift (SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- void ExpandShiftByConstant(SDNode *N, unsigned Amt,
- SDOperand &Lo, SDOperand &Hi);
- bool ExpandShiftWithKnownAmountBit(SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- // Result Vector Scalarization: <1 x ty> -> ty.
- void ScalarizeResult(SDNode *N, unsigned OpNo);
- SDOperand ScalarizeRes_UNDEF(SDNode *N);
- SDOperand ScalarizeRes_LOAD(LoadSDNode *N);
- SDOperand ScalarizeRes_BinOp(SDNode *N);
- SDOperand ScalarizeRes_UnaryOp(SDNode *N);
- SDOperand ScalarizeRes_FPOWI(SDNode *N);
- SDOperand ScalarizeRes_VECTOR_SHUFFLE(SDNode *N);
- SDOperand ScalarizeRes_BIT_CONVERT(SDNode *N);
- SDOperand ScalarizeRes_SELECT(SDNode *N);
-
- // Operand Promotion.
- bool PromoteOperand(SDNode *N, unsigned OperandNo);
- SDOperand PromoteOperand_ANY_EXTEND(SDNode *N);
- SDOperand PromoteOperand_ZERO_EXTEND(SDNode *N);
- SDOperand PromoteOperand_SIGN_EXTEND(SDNode *N);
- SDOperand PromoteOperand_TRUNCATE(SDNode *N);
- SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
- SDOperand PromoteOperand_FP_ROUND(SDNode *N);
- SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
- SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_BRCOND(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_BR_CC(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_STORE(StoreSDNode *N, unsigned OpNo);
-
- void PromoteSetCCOperands(SDOperand &LHS,SDOperand &RHS, ISD::CondCode Code);
-
- // Operand Expansion.
- bool ExpandOperand(SDNode *N, unsigned OperandNo);
- SDOperand ExpandOperand_TRUNCATE(SDNode *N);
- SDOperand ExpandOperand_BIT_CONVERT(SDNode *N);
- SDOperand ExpandOperand_UINT_TO_FP(SDOperand Source, MVT::ValueType DestTy);
- SDOperand ExpandOperand_SINT_TO_FP(SDOperand Source, MVT::ValueType DestTy);
- SDOperand ExpandOperand_EXTRACT_ELEMENT(SDNode *N);
- SDOperand ExpandOperand_SETCC(SDNode *N);
- SDOperand ExpandOperand_STORE(StoreSDNode *N, unsigned OpNo);
-
- void ExpandSetCCOperands(SDOperand &NewLHS, SDOperand &NewRHS,
- ISD::CondCode &CCCode);
-
- // Operand Vector Scalarization: <1 x ty> -> ty.
- bool ScalarizeOperand(SDNode *N, unsigned OpNo);
- SDOperand ScalarizeOp_EXTRACT_VECTOR_ELT(SDNode *N, unsigned OpNo);
-
-};
-} // end anonymous namespace
-
-
-
/// run - This is the main entry point for the type legalizer. This does a
/// top-down traversal of the dag, legalizing types as it goes.
void DAGTypeLegalizer::run() {
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
new file mode 100644
index 00000000000..db5436fd710
--- /dev/null
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
@@ -0,0 +1,255 @@
+//===-- LegalizeTypes.h - Definition of the DAG Type Legalizer class ------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by Chris Lattner and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the DAGTypeLegalizer class. This is a private interface
+// shared between the code that implements the SelectionDAG::LegalizeTypes
+// method.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SELECTIONDAG_LEGALIZETYPES_H
+#define SELECTIONDAG_LEGALIZETYPES_H
+
+#define DEBUG_TYPE "legalize-types"
+#include "llvm/CodeGen/SelectionDAG.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Debug.h"
+
+namespace llvm {
+
+//===----------------------------------------------------------------------===//
+/// DAGTypeLegalizer - This takes an arbitrary SelectionDAG as input and
+/// hacks on it until the target machine can handle it. This involves
+/// eliminating value sizes the machine cannot handle (promoting small sizes to
+/// large sizes or splitting up large values into small values) as well as
+/// eliminating operations the machine cannot handle.
+///
+/// This code also does a small amount of optimization and recognition of idioms
+/// as part of its processing. For example, if a target does not support a
+/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this
+/// will attempt merge setcc and brc instructions into brcc's.
+///
+class VISIBILITY_HIDDEN DAGTypeLegalizer {
+ TargetLowering &TLI;
+ SelectionDAG &DAG;
+
+ // NodeIDFlags - This pass uses the NodeID on the SDNodes to hold information
+ // about the state of the node. The enum has all the values.
+ enum NodeIDFlags {
+ /// ReadyToProcess - All operands have been processed, so this node is ready
+ /// to be handled.
+ ReadyToProcess = 0,
+
+ /// NewNode - This is a new node that was created in the process of
+ /// legalizing some other node.
+ NewNode = -1,
+
+ /// Processed - This is a node that has already been processed.
+ Processed = -2
+
+ // 1+ - This is a node which has this many unlegalized operands.
+ };
+
+ enum LegalizeAction {
+ Legal, // The target natively supports this type.
+ Promote, // This type should be executed in a larger type.
+ Expand // This type should be split into two types of half the size.
+ };
+
+ /// ValueTypeActions - This is a bitvector that contains two bits for each
+ /// simple value type, where the two bits correspond to the LegalizeAction
+ /// enum. This can be queried with "getTypeAction(VT)".
+ TargetLowering::ValueTypeActionImpl ValueTypeActions;
+
+ /// getTypeAction - Return how we should legalize values of this type, either
+ /// it is already legal or we need to expand it into multiple registers of
+ /// smaller integer type, or we need to promote it to a larger type.
+ LegalizeAction getTypeAction(MVT::ValueType VT) const {
+ return (LegalizeAction)ValueTypeActions.getTypeAction(VT);
+ }
+
+ /// isTypeLegal - Return true if this type is legal on this target.
+ ///
+ bool isTypeLegal(MVT::ValueType VT) const {
+ return getTypeAction(VT) == Legal;
+ }
+
+ SDOperand getIntPtrConstant(uint64_t Val) {
+ return DAG.getConstant(Val, TLI.getPointerTy());
+ }
+
+ /// PromotedNodes - For nodes that are below legal width, this map indicates
+ /// what promoted value to use.
+ DenseMap<SDOperand, SDOperand> PromotedNodes;
+
+ /// ExpandedNodes - For nodes that need to be expanded this map indicates
+ /// which operands are the expanded version of the input.
+ DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes;
+
+ /// ScalarizedNodes - For nodes that are <1 x ty>, this map indicates the
+ /// scalar value of type 'ty' to use.
+ DenseMap<SDOperand, SDOperand> ScalarizedNodes;
+
+ /// ReplacedNodes - For nodes that have been replaced with another,
+ /// indicates the replacement node to use.
+ DenseMap<SDOperand, SDOperand> ReplacedNodes;
+
+ /// Worklist - This defines a worklist of nodes to process. In order to be
+ /// pushed onto this worklist, all operands of a node must have already been
+ /// processed.
+ SmallVector<SDNode*, 128> Worklist;
+
+public:
+ explicit DAGTypeLegalizer(SelectionDAG &dag)
+ : TLI(dag.getTargetLoweringInfo()), DAG(dag),
+ ValueTypeActions(TLI.getValueTypeActions()) {
+ assert(MVT::LAST_VALUETYPE <= 32 &&
+ "Too many value types for ValueTypeActions to hold!");
+ }
+
+ void run();
+
+private:
+ void MarkNewNodes(SDNode *N);
+
+ void ReplaceValueWith(SDOperand From, SDOperand To);
+ void ReplaceNodeWith(SDNode *From, SDNode *To);
+
+ void RemapNode(SDOperand &N);
+
+ SDOperand GetPromotedOp(SDOperand Op) {
+ SDOperand &PromotedOp = PromotedNodes[Op];
+ RemapNode(PromotedOp);
+ assert(PromotedOp.Val && "Operand wasn't promoted?");
+ return PromotedOp;
+ }
+ void SetPromotedOp(SDOperand Op, SDOperand Result);
+
+ /// GetPromotedZExtOp - Get a promoted operand and zero extend it to the final
+ /// size.
+ SDOperand GetPromotedZExtOp(SDOperand Op) {
+ MVT::ValueType OldVT = Op.getValueType();
+ Op = GetPromotedOp(Op);
+ return DAG.getZeroExtendInReg(Op, OldVT);
+ }
+
+ void GetExpandedOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
+ void SetExpandedOp(SDOperand Op, SDOperand Lo, SDOperand Hi);
+
+ SDOperand GetScalarizedOp(SDOperand Op) {
+ SDOperand &ScalarOp = ScalarizedNodes[Op];
+ RemapNode(ScalarOp);
+ assert(ScalarOp.Val && "Operand wasn't scalarized?");
+ return ScalarOp;
+ }
+ void SetScalarizedOp(SDOperand Op, SDOperand Result);
+
+ // Common routines.
+ SDOperand CreateStackStoreLoad(SDOperand Op, MVT::ValueType DestVT);
+ SDOperand HandleMemIntrinsic(SDNode *N);
+ void SplitOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
+
+ // Result Promotion.
+ void PromoteResult(SDNode *N, unsigned ResNo);
+ SDOperand PromoteResult_UNDEF(SDNode *N);
+ SDOperand PromoteResult_Constant(SDNode *N);
+ SDOperand PromoteResult_TRUNCATE(SDNode *N);
+ SDOperand PromoteResult_INT_EXTEND(SDNode *N);
+ SDOperand PromoteResult_FP_ROUND(SDNode *N);
+ SDOperand PromoteResult_FP_TO_XINT(SDNode *N);
+ SDOperand PromoteResult_SETCC(SDNode *N);
+ SDOperand PromoteResult_LOAD(LoadSDNode *N);
+ SDOperand PromoteResult_SimpleIntBinOp(SDNode *N);
+ SDOperand PromoteResult_SDIV(SDNode *N);
+ SDOperand PromoteResult_UDIV(SDNode *N);
+ SDOperand PromoteResult_SHL(SDNode *N);
+ SDOperand PromoteResult_SRA(SDNode *N);
+ SDOperand PromoteResult_SRL(SDNode *N);
+ SDOperand PromoteResult_SELECT (SDNode *N);
+ SDOperand PromoteResult_SELECT_CC(SDNode *N);
+
+ // Result Expansion.
+ void ExpandResult(SDNode *N, unsigned ResNo);
+ void ExpandResult_UNDEF (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_Constant (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_BUILD_PAIR (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_MERGE_VALUES(SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_ANY_EXTEND (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_ZERO_EXTEND(SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_SIGN_EXTEND(SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_BIT_CONVERT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_SIGN_EXTEND_INREG(SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_LOAD (LoadSDNode *N, SDOperand &Lo, SDOperand &Hi);
+
+ void ExpandResult_Logical (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_BSWAP (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_ADDSUB (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_ADDSUBC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_ADDSUBE (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_SELECT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_SELECT_CC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_MUL (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+ void ExpandResult_Shift (SDNode *N, SDOperand &Lo, SDOperand &Hi);
+
+ void ExpandShiftByConstant(SDNode *N, unsigned Amt,
+ SDOperand &Lo, SDOperand &Hi);
+ bool ExpandShiftWithKnownAmountBit(SDNode *N, SDOperand &Lo, SDOperand &Hi);
+
+ // Result Vector Scalarization: <1 x ty> -> ty.
+ void ScalarizeResult(SDNode *N, unsigned OpNo);
+ SDOperand ScalarizeRes_UNDEF(SDNode *N);
+ SDOperand ScalarizeRes_LOAD(LoadSDNode *N);
+ SDOperand ScalarizeRes_BinOp(SDNode *N);
+ SDOperand ScalarizeRes_UnaryOp(SDNode *N);
+ SDOperand ScalarizeRes_FPOWI(SDNode *N);
+ SDOperand ScalarizeRes_VECTOR_SHUFFLE(SDNode *N);
+ SDOperand ScalarizeRes_BIT_CONVERT(SDNode *N);
+ SDOperand ScalarizeRes_SELECT(SDNode *N);
+
+ // Operand Promotion.
+ bool PromoteOperand(SDNode *N, unsigned OperandNo);
+ SDOperand PromoteOperand_ANY_EXTEND(SDNode *N);
+ SDOperand PromoteOperand_ZERO_EXTEND(SDNode *N);
+ SDOperand PromoteOperand_SIGN_EXTEND(SDNode *N);
+ SDOperand PromoteOperand_TRUNCATE(SDNode *N);
+ SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
+ SDOperand PromoteOperand_FP_ROUND(SDNode *N);
+ SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
+ SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
+ SDOperand PromoteOperand_BRCOND(SDNode *N, unsigned OpNo);
+ SDOperand PromoteOperand_BR_CC(SDNode *N, unsigned OpNo);
+ SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);
+ SDOperand PromoteOperand_STORE(StoreSDNode *N, unsigned OpNo);
+
+ void PromoteSetCCOperands(SDOperand &LHS,SDOperand &RHS, ISD::CondCode Code);
+
+ // Operand Expansion.
+ bool ExpandOperand(SDNode *N, unsigned OperandNo);
+ SDOperand ExpandOperand_TRUNCATE(SDNode *N);
+ SDOperand ExpandOperand_BIT_CONVERT(SDNode *N);
+ SDOperand ExpandOperand_UINT_TO_FP(SDOperand Source, MVT::ValueType DestTy);
+ SDOperand ExpandOperand_SINT_TO_FP(SDOperand Source, MVT::ValueType DestTy);
+ SDOperand ExpandOperand_EXTRACT_ELEMENT(SDNode *N);
+ SDOperand ExpandOperand_SETCC(SDNode *N);
+ SDOperand ExpandOperand_STORE(StoreSDNode *N, unsigned OpNo);
+
+ void ExpandSetCCOperands(SDOperand &NewLHS, SDOperand &NewRHS,
+ ISD::CondCode &CCCode);
+
+ // Operand Vector Scalarization: <1 x ty> -> ty.
+ bool ScalarizeOperand(SDNode *N, unsigned OpNo);
+ SDOperand ScalarizeOp_EXTRACT_VECTOR_ELT(SDNode *N, unsigned OpNo);
+
+};
+
+} // end namespace llvm.
+
+#endif
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