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Support creating a constant pool value for a machine basic block.
This is used when we want to take the address of a machine basic block, but it's not associated with a BB in LLVM IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140823 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -17,6 +17,7 @@
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#include "llvm/Constants.h"
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#include "llvm/GlobalValue.h"
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#include "llvm/Type.h"
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cstdlib>
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using namespace llvm;
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@ -30,6 +31,17 @@ ARMConstantPoolValue::ARMConstantPoolValue(const Constant *cval, unsigned id,
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CVal(cval), S(NULL), LabelId(id), Kind(K), PCAdjust(PCAdj),
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Modifier(Modif), AddCurrentAddress(AddCA) {}
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ARMConstantPoolValue::ARMConstantPoolValue(LLVMContext &C,
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const MachineBasicBlock *mbb,
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unsigned id,
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ARMCP::ARMCPKind K,
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unsigned char PCAdj,
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ARMCP::ARMCPModifier Modif,
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bool AddCA)
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: MachineConstantPoolValue((Type*)Type::getInt8PtrTy(C)),
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CVal(NULL), MBB(mbb), S(NULL), LabelId(id), Kind(K), PCAdjust(PCAdj),
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Modifier(Modif), AddCurrentAddress(AddCA) {}
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ARMConstantPoolValue::ARMConstantPoolValue(LLVMContext &C,
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const char *s, unsigned id,
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unsigned char PCAdj,
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@ -53,6 +65,10 @@ const BlockAddress *ARMConstantPoolValue::getBlockAddress() const {
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return dyn_cast_or_null<BlockAddress>(CVal);
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}
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const MachineBasicBlock *ARMConstantPoolValue::getMBB() const {
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return MBB;
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}
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static bool CPV_streq(const char *S1, const char *S2) {
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if (S1 == S2)
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return true;
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@ -119,6 +135,8 @@ void ARMConstantPoolValue::dump() const {
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void ARMConstantPoolValue::print(raw_ostream &O) const {
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if (CVal)
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O << CVal->getName();
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else if (MBB)
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O << "";
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else
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O << S;
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if (Modifier) O << "(" << getModifierText() << ")";
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@ -20,17 +20,19 @@
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namespace llvm {
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class Constant;
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class BlockAddress;
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class Constant;
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class GlobalValue;
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class LLVMContext;
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class MachineBasicBlock;
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namespace ARMCP {
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enum ARMCPKind {
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CPValue,
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CPExtSymbol,
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CPBlockAddress,
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CPLSDA
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CPLSDA,
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CPMachineBasicBlock
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};
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enum ARMCPModifier {
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@ -48,6 +50,7 @@ namespace ARMCP {
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/// instruction and the constant being loaded, i.e. (&GV-(LPIC+8)).
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class ARMConstantPoolValue : public MachineConstantPoolValue {
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const Constant *CVal; // Constant being loaded.
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const MachineBasicBlock *MBB; // MachineBasicBlock being loaded.
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const char *S; // ExtSymbol being loaded.
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unsigned LabelId; // Label id of the load.
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ARMCP::ARMCPKind Kind; // Kind of constant.
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@ -62,6 +65,11 @@ public:
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unsigned char PCAdj = 0,
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ARMCP::ARMCPModifier Modifier = ARMCP::no_modifier,
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bool AddCurrentAddress = false);
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ARMConstantPoolValue(LLVMContext &C, const MachineBasicBlock *mbb,unsigned id,
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ARMCP::ARMCPKind Kind = ARMCP::CPValue,
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unsigned char PCAdj = 0,
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ARMCP::ARMCPModifier Modifier = ARMCP::no_modifier,
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bool AddCurrentAddress = false);
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ARMConstantPoolValue(LLVMContext &C, const char *s, unsigned id,
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unsigned char PCAdj = 0,
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ARMCP::ARMCPModifier Modifier = ARMCP::no_modifier,
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@ -73,6 +81,7 @@ public:
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const GlobalValue *getGV() const;
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const char *getSymbol() const { return S; }
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const BlockAddress *getBlockAddress() const;
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const MachineBasicBlock *getMBB() const;
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ARMCP::ARMCPModifier getModifier() const { return Modifier; }
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const char *getModifierText() const {
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switch (Modifier) {
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@ -95,6 +104,7 @@ public:
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bool isExtSymbol() const { return Kind == ARMCP::CPExtSymbol; }
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bool isBlockAddress() { return Kind == ARMCP::CPBlockAddress; }
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bool isLSDA() { return Kind == ARMCP::CPLSDA; }
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bool isMachineBasicBlock() { return Kind == ARMCP::CPMachineBasicBlock; }
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virtual unsigned getRelocationInfo() const { return 2; }
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