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Eliminate yet another copy of getOpcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76236 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -14,7 +14,7 @@
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#define DEBUG_TYPE "sched-instrs"
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#include "ScheduleDAGInstrs.h"
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#include "llvm/Constants.h"
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#include "llvm/Operator.h"
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#include "llvm/Analysis/AliasAnalysis.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MachineRegisterInfo.h"
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@ -46,25 +46,14 @@ void ScheduleDAGInstrs::Run(MachineBasicBlock *bb,
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ScheduleDAG::Run(bb, end);
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}
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/// getOpcode - If this is an Instruction or a ConstantExpr, return the
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/// opcode value. Otherwise return UserOp1.
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static unsigned getOpcode(const Value *V) {
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if (const Instruction *I = dyn_cast<Instruction>(V))
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return I->getOpcode();
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if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V))
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return CE->getOpcode();
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// Use UserOp1 to mean there's no opcode.
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return Instruction::UserOp1;
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}
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/// getUnderlyingObjectFromInt - This is the function that does the work of
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/// looking through basic ptrtoint+arithmetic+inttoptr sequences.
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static const Value *getUnderlyingObjectFromInt(const Value *V) {
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do {
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if (const User *U = dyn_cast<User>(V)) {
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if (const Operator *U = dyn_cast<Operator>(V)) {
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// If we find a ptrtoint, we can transfer control back to the
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// regular getUnderlyingObjectFromInt.
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if (getOpcode(U) == Instruction::PtrToInt)
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if (U->getOpcode() == Instruction::PtrToInt)
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return U->getOperand(0);
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// If we find an add of a constant or a multiplied value, it's
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// likely that the other operand will lead us to the base
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@ -72,9 +61,9 @@ static const Value *getUnderlyingObjectFromInt(const Value *V) {
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// object address is somehow being computed bt the multiply,
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// because our callers only care when the result is an
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// identifibale object.
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if (getOpcode(U) != Instruction::Add ||
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if (U->getOpcode() != Instruction::Add ||
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(!isa<ConstantInt>(U->getOperand(1)) &&
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getOpcode(U->getOperand(1)) != Instruction::Mul))
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Operator::getOpcode(U->getOperand(1)) != Instruction::Mul))
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return V;
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V = U->getOperand(0);
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} else {
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@ -91,7 +80,7 @@ static const Value *getUnderlyingObject(const Value *V) {
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do {
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V = V->getUnderlyingObject();
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// If it found an inttoptr, use special code to continue climing.
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if (getOpcode(V) != Instruction::IntToPtr)
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if (Operator::getOpcode(V) != Instruction::IntToPtr)
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break;
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const Value *O = getUnderlyingObjectFromInt(cast<User>(V)->getOperand(0));
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// If that succeeded in finding a pointer, continue the search.
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