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authorpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
committerpatrick <patrick@openbsd.org>2020-08-03 15:06:44 +0000
commitb64793999546ed8adebaeebd9d8345d18db8927d (patch)
tree4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/lib/Target/ARM/ARMConstantPoolValue.h
parentAdd support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff)
downloadwireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz
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Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/lib/Target/ARM/ARMConstantPoolValue.h')
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diff --git a/gnu/llvm/lib/Target/ARM/ARMConstantPoolValue.h b/gnu/llvm/lib/Target/ARM/ARMConstantPoolValue.h
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-//===- ARMConstantPoolValue.h - ARM constantpool value ----------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the ARM specific constantpool value class.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H
-#define LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H
-
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/iterator_range.h"
-#include "llvm/CodeGen/MachineConstantPool.h"
-#include "llvm/Support/Casting.h"
-#include <string>
-#include <vector>
-
-namespace llvm {
-
-class BlockAddress;
-class Constant;
-class GlobalValue;
-class GlobalVariable;
-class LLVMContext;
-class MachineBasicBlock;
-class raw_ostream;
-class Type;
-
-namespace ARMCP {
-
- enum ARMCPKind {
- CPValue,
- CPExtSymbol,
- CPBlockAddress,
- CPLSDA,
- CPMachineBasicBlock,
- CPPromotedGlobal
- };
-
- enum ARMCPModifier {
- no_modifier, /// None
- TLSGD, /// Thread Local Storage (General Dynamic Mode)
- GOT_PREL, /// Global Offset Table, PC Relative
- GOTTPOFF, /// Global Offset Table, Thread Pointer Offset
- TPOFF, /// Thread Pointer Offset
- SECREL, /// Section Relative (Windows TLS)
- SBREL, /// Static Base Relative (RWPI)
- };
-
-} // end namespace ARMCP
-
-/// ARMConstantPoolValue - ARM specific constantpool value. This is used to
-/// represent PC-relative displacement between the address of the load
-/// instruction and the constant being loaded, i.e. (&GV-(LPIC+8)).
-class ARMConstantPoolValue : public MachineConstantPoolValue {
- unsigned LabelId; // Label id of the load.
- ARMCP::ARMCPKind Kind; // Kind of constant.
- unsigned char PCAdjust; // Extra adjustment if constantpool is pc-relative.
- // 8 for ARM, 4 for Thumb.
- ARMCP::ARMCPModifier Modifier; // GV modifier i.e. (&GV(modifier)-(LPIC+8))
- bool AddCurrentAddress;
-
-protected:
- ARMConstantPoolValue(Type *Ty, unsigned id, ARMCP::ARMCPKind Kind,
- unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
-
- ARMConstantPoolValue(LLVMContext &C, unsigned id, ARMCP::ARMCPKind Kind,
- unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
-
- template <typename Derived>
- int getExistingMachineCPValueImpl(MachineConstantPool *CP,
- unsigned Alignment) {
- unsigned AlignMask = Alignment - 1;
- const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
- for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
- if (Constants[i].isMachineConstantPoolEntry() &&
- (Constants[i].getAlignment() & AlignMask) == 0) {
- auto *CPV =
- static_cast<ARMConstantPoolValue*>(Constants[i].Val.MachineCPVal);
- if (Derived *APC = dyn_cast<Derived>(CPV))
- if (cast<Derived>(this)->equals(APC))
- return i;
- }
- }
-
- return -1;
- }
-
-public:
- ~ARMConstantPoolValue() override;
-
- ARMCP::ARMCPModifier getModifier() const { return Modifier; }
- StringRef getModifierText() const;
- bool hasModifier() const { return Modifier != ARMCP::no_modifier; }
-
- bool mustAddCurrentAddress() const { return AddCurrentAddress; }
-
- unsigned getLabelId() const { return LabelId; }
- unsigned char getPCAdjustment() const { return PCAdjust; }
-
- bool isGlobalValue() const { return Kind == ARMCP::CPValue; }
- bool isExtSymbol() const { return Kind == ARMCP::CPExtSymbol; }
- bool isBlockAddress() const { return Kind == ARMCP::CPBlockAddress; }
- bool isLSDA() const { return Kind == ARMCP::CPLSDA; }
- bool isMachineBasicBlock() const{ return Kind == ARMCP::CPMachineBasicBlock; }
- bool isPromotedGlobal() const{ return Kind == ARMCP::CPPromotedGlobal; }
-
- int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment) override;
-
- void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
-
- /// hasSameValue - Return true if this ARM constpool value can share the same
- /// constantpool entry as another ARM constpool value.
- virtual bool hasSameValue(ARMConstantPoolValue *ACPV);
-
- bool equals(const ARMConstantPoolValue *A) const {
- return this->LabelId == A->LabelId &&
- this->PCAdjust == A->PCAdjust &&
- this->Modifier == A->Modifier;
- }
-
- void print(raw_ostream &O) const override;
- void print(raw_ostream *O) const { if (O) print(*O); }
- void dump() const;
-};
-
-inline raw_ostream &operator<<(raw_ostream &O, const ARMConstantPoolValue &V) {
- V.print(O);
- return O;
-}
-
-/// ARMConstantPoolConstant - ARM-specific constant pool values for Constants,
-/// Functions, and BlockAddresses.
-class ARMConstantPoolConstant : public ARMConstantPoolValue {
- const Constant *CVal; // Constant being loaded.
- SmallPtrSet<const GlobalVariable*, 1> GVars;
-
- ARMConstantPoolConstant(const Constant *C,
- unsigned ID,
- ARMCP::ARMCPKind Kind,
- unsigned char PCAdj,
- ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
- ARMConstantPoolConstant(Type *Ty, const Constant *C,
- unsigned ID,
- ARMCP::ARMCPKind Kind,
- unsigned char PCAdj,
- ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
- ARMConstantPoolConstant(const GlobalVariable *GV, const Constant *Init);
-
-public:
- static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID);
- static ARMConstantPoolConstant *Create(const GlobalValue *GV,
- ARMCP::ARMCPModifier Modifier);
- static ARMConstantPoolConstant *Create(const GlobalVariable *GV,
- const Constant *Initializer);
- static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID,
- ARMCP::ARMCPKind Kind,
- unsigned char PCAdj);
- static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID,
- ARMCP::ARMCPKind Kind,
- unsigned char PCAdj,
- ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
-
- const GlobalValue *getGV() const;
- const BlockAddress *getBlockAddress() const;
-
- using promoted_iterator = SmallPtrSet<const GlobalVariable *, 1>::iterator;
-
- iterator_range<promoted_iterator> promotedGlobals() {
- return iterator_range<promoted_iterator>(GVars.begin(), GVars.end());
- }
-
- const Constant *getPromotedGlobalInit() const {
- return CVal;
- }
-
- int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment) override;
-
- /// hasSameValue - Return true if this ARM constpool value can share the same
- /// constantpool entry as another ARM constpool value.
- bool hasSameValue(ARMConstantPoolValue *ACPV) override;
-
- void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
-
- void print(raw_ostream &O) const override;
-
- static bool classof(const ARMConstantPoolValue *APV) {
- return APV->isGlobalValue() || APV->isBlockAddress() || APV->isLSDA() ||
- APV->isPromotedGlobal();
- }
-
- bool equals(const ARMConstantPoolConstant *A) const {
- return CVal == A->CVal && ARMConstantPoolValue::equals(A);
- }
-};
-
-/// ARMConstantPoolSymbol - ARM-specific constantpool values for external
-/// symbols.
-class ARMConstantPoolSymbol : public ARMConstantPoolValue {
- const std::string S; // ExtSymbol being loaded.
-
- ARMConstantPoolSymbol(LLVMContext &C, StringRef s, unsigned id,
- unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
-
-public:
- static ARMConstantPoolSymbol *Create(LLVMContext &C, StringRef s, unsigned ID,
- unsigned char PCAdj);
-
- StringRef getSymbol() const { return S; }
-
- int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment) override;
-
- void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
-
- /// hasSameValue - Return true if this ARM constpool value can share the same
- /// constantpool entry as another ARM constpool value.
- bool hasSameValue(ARMConstantPoolValue *ACPV) override;
-
- void print(raw_ostream &O) const override;
-
- static bool classof(const ARMConstantPoolValue *ACPV) {
- return ACPV->isExtSymbol();
- }
-
- bool equals(const ARMConstantPoolSymbol *A) const {
- return S == A->S && ARMConstantPoolValue::equals(A);
- }
-};
-
-/// ARMConstantPoolMBB - ARM-specific constantpool value of a machine basic
-/// block.
-class ARMConstantPoolMBB : public ARMConstantPoolValue {
- const MachineBasicBlock *MBB; // Machine basic block.
-
- ARMConstantPoolMBB(LLVMContext &C, const MachineBasicBlock *mbb, unsigned id,
- unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
- bool AddCurrentAddress);
-
-public:
- static ARMConstantPoolMBB *Create(LLVMContext &C,
- const MachineBasicBlock *mbb,
- unsigned ID, unsigned char PCAdj);
-
- const MachineBasicBlock *getMBB() const { return MBB; }
-
- int getExistingMachineCPValue(MachineConstantPool *CP,
- unsigned Alignment) override;
-
- void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;
-
- /// hasSameValue - Return true if this ARM constpool value can share the same
- /// constantpool entry as another ARM constpool value.
- bool hasSameValue(ARMConstantPoolValue *ACPV) override;
-
- void print(raw_ostream &O) const override;
-
- static bool classof(const ARMConstantPoolValue *ACPV) {
- return ACPV->isMachineBasicBlock();
- }
-
- bool equals(const ARMConstantPoolMBB *A) const {
- return MBB == A->MBB && ARMConstantPoolValue::equals(A);
- }
-};
-
-} // end namespace llvm
-
-#endif // LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H