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Posted to commits@harmony.apache.org by mf...@apache.org on 2008/02/09 11:51:28 UTC
svn commit: r620099 -
/harmony/enhanced/drlvm/trunk/vm/jitrino/src/codegenerator/ia32/Ia32PeepHole.cpp
Author: mfursov
Date: Sat Feb 9 02:51:27 2008
New Revision: 620099
URL: http://svn.apache.org/viewvc?rev=620099&view=rev
Log:
Fix for HARMONY-5123 [drlvm][jit][opt][perf] More peephole optimizations for Jitrino.OPT compiler
Modified:
harmony/enhanced/drlvm/trunk/vm/jitrino/src/codegenerator/ia32/Ia32PeepHole.cpp
Modified: harmony/enhanced/drlvm/trunk/vm/jitrino/src/codegenerator/ia32/Ia32PeepHole.cpp
URL: http://svn.apache.org/viewvc/harmony/enhanced/drlvm/trunk/vm/jitrino/src/codegenerator/ia32/Ia32PeepHole.cpp?rev=620099&r1=620098&r2=620099&view=diff
==============================================================================
--- harmony/enhanced/drlvm/trunk/vm/jitrino/src/codegenerator/ia32/Ia32PeepHole.cpp (original)
+++ harmony/enhanced/drlvm/trunk/vm/jitrino/src/codegenerator/ia32/Ia32PeepHole.cpp Sat Feb 9 02:51:27 2008
@@ -23,7 +23,6 @@
namespace Jitrino {
namespace Ia32 {
-
class PeepHoleOpt;
static const char* help =
"Performs simple local (per-BB) or per-Inst optimizations.\n"
@@ -84,6 +83,7 @@
//
//
//
+ Changed handleInst_MOV(Inst* inst);
Changed handleInst_Call(Inst* inst);
Changed handleInst_HelperCall(Inst* inst, const Opnd::RuntimeInfo* ri);
Changed handleInst_Convert_F2I_D2I(Inst* inst);
@@ -92,6 +92,8 @@
Changed handleInst_SSEMov(Inst* inst);
Changed handleInst_SSEXor(Inst* inst);
Changed handleInst_CMP(Inst* inst);
+ Changed handleInst_SETcc(Inst* inst);
+
//
// Helpers
//
@@ -180,16 +182,20 @@
{
PeepHoleOpt::Changed temp;
- if (inst->hasKind(Inst::Kind_PseudoInst)) {
+ if (inst->hasKind(Inst::Kind_PseudoInst) && inst->getKind() != Inst::Kind_CopyPseudoInst) {
return Changed_Nothing;
}
Mnemonic mnemonic = inst->getMnemonic();
switch(mnemonic) {
+ case Mnemonic_MOV:
+ return handleInst_MOV(inst);
case Mnemonic_CALL:
return handleInst_Call(inst);
case Mnemonic_ADD:
+ case Mnemonic_ADC:
case Mnemonic_SUB:
+ case Mnemonic_SBB:
case Mnemonic_NOT:
case Mnemonic_AND:
case Mnemonic_OR:
@@ -203,6 +209,11 @@
} else {
return temp;
}
+ case Mnemonic_SETG:
+ case Mnemonic_SETE:
+ case Mnemonic_SETNE:
+ case Mnemonic_SETL:
+ return handleInst_SETcc(inst);
case Mnemonic_IMUL:
case Mnemonic_MUL:
return handleInst_MUL(inst);
@@ -414,6 +425,186 @@
return i;
}
+PeepHoleOpt::Changed PeepHoleOpt::handleInst_MOV(Inst* inst)
+{
+ Node* node = inst->getNode();
+ if (((BasicBlock*)node)->getLayoutSucc() == NULL)
+ {
+ Inst *next = inst->getNextInst();
+
+ Node *currNode = node;
+ bool methodMarkerOccur = false;
+ MethodMarkerPseudoInst* methodMarker = NULL;
+ // ignoring instructions that have no effect and saving method markers to correct them during optimizations
+ while (next == NULL || next->getKind() == Inst::Kind_MethodEndPseudoInst || next->getMnemonic() == Mnemonic_JMP)
+ {
+ if (next == NULL)
+ {
+ currNode = currNode->getOutEdge(Edge::Kind_Unconditional)->getTargetNode();
+ if (currNode->getKind() == Node::Kind_Exit)
+ return Changed_Nothing;
+ next = (Inst*) currNode->getFirstInst();
+ }
+ else
+ {
+ if (next->getKind() == Inst::Kind_MethodEndPseudoInst)
+ {
+ //max 1 saved method marker
+ if (methodMarkerOccur)
+ {
+ return Changed_Nothing;
+ }
+ methodMarker = (MethodMarkerPseudoInst*)next;
+ methodMarkerOccur = true;
+ }
+ next = next->getNextInst();
+ }
+ }
+
+ Inst *jump = next->getNextInst();
+
+
+ bool step1 = true;
+ currNode = node;
+ while (currNode != next->getNode())
+ {
+ currNode = currNode->getOutEdge(Edge::Kind_Unconditional)->getTargetNode();
+ if (currNode->getInDegree()!=1)
+ {
+ step1 = false;
+ break;
+ }
+ }
+
+ // step1:
+ // ---------------------------------------------
+ // MOV opnd, opnd2 MOV opnd3, opnd2
+ // MOV opnd3, opnd ->
+ // ---------------------------------------------
+ // nb: applicable if opnd will not be used further
+ if (step1 && next->getMnemonic() == Mnemonic_MOV)
+ {
+ Opnd *movopnd1, *movopnd2, *nextmovopnd1, *nextmovopnd2;
+ if (inst->getKind() == Inst::Kind_CopyPseudoInst)
+ {
+ movopnd1 = inst->getOpnd(0);
+ movopnd2 = inst->getOpnd(1);
+ }
+ else
+ {
+ Inst::Opnds movuses(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Inst::Opnds movdefs(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ movopnd1 = inst->getOpnd(movdefs.begin());
+ movopnd2 = inst->getOpnd(movuses.begin());
+ }
+ if (next->getKind() == Inst::Kind_CopyPseudoInst)
+ {
+ nextmovopnd1 = next->getOpnd(0);
+ nextmovopnd2 = next->getOpnd(1);
+ }
+ else
+ {
+ Inst::Opnds nextmovuses(next, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Inst::Opnds nextmovdefs(next, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ nextmovopnd1 = next->getOpnd(nextmovdefs.begin());
+ nextmovopnd2 = next->getOpnd(nextmovuses.begin());
+ }
+ if (movopnd1->getId() == nextmovopnd2->getId() &&
+ !isMem(movopnd2) && !isMem(nextmovopnd1) &&
+ !isMem(movopnd1)
+ )
+ {
+ BitSet ls(irManager->getMemoryManager(), irManager->getOpndCount());
+ irManager->updateLivenessInfo();
+ irManager->getLiveAtExit(next->getNode(), ls);
+ for (Inst* i = (Inst*)next->getNode()->getLastInst(); i!=next; i = i->getPrevInst()) {
+ irManager->updateLiveness(i, ls);
+ }
+ bool dstNotUsed = !ls.getBit(movopnd1->getId());
+ if (dstNotUsed)
+ {
+ irManager->newInst(Mnemonic_MOV, nextmovopnd1, movopnd2)->insertAfter(inst);
+ inst->unlink();
+ next->unlink();
+ return Changed_Node;
+ }
+ }
+ }
+
+ // step2:
+ // --------------------------------------------------------------
+ // MOV opnd, 0/1 Jmp smwh/BB1 Jmp smwh/BB1
+ // CMP opnd, 0 -> CMP opnd, 0 v
+ // Jcc smwh Jcc smwh
+ // BB1: BB1:
+ // --------------------------------------------------------------
+ // nb: applicable if opnd will not be used further
+ if (next->getMnemonic() == Mnemonic_CMP && jump!= NULL && (jump->getMnemonic() == Mnemonic_JE ||
+ jump->getMnemonic() == Mnemonic_JNE))
+ {
+ Opnd *movopnd1, *movopnd2;
+ if (inst->getKind() == Inst::Kind_CopyPseudoInst)
+ {
+ movopnd1 = inst->getOpnd(0);
+ movopnd2 = inst->getOpnd(1);
+ }
+ else
+ {
+ Inst::Opnds movuses(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Inst::Opnds movdefs(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ movopnd1 = inst->getOpnd(movdefs.begin());
+ movopnd2 = inst->getOpnd(movuses.begin());
+ }
+ Inst::Opnds cmpuses(next, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Opnd* cmpopnd1 = next->getOpnd(cmpuses.begin());
+ Opnd* cmpopnd2 = next->getOpnd(cmpuses.next(cmpuses.begin()));
+
+ if (isImm(movopnd2) && (movopnd2->getImmValue() == 0 || movopnd2->getImmValue() == 1) &&
+ movopnd1->getId() == cmpopnd1->getId() &&
+ isImm(cmpopnd2) && cmpopnd2->getImmValue() == 0)
+ {
+ BitSet ls(irManager->getMemoryManager(), irManager->getOpndCount());
+ irManager->updateLivenessInfo();
+ irManager->getLiveAtExit(jump->getNode(), ls);
+ bool opndNotUsed = !ls.getBit(movopnd1->getId());
+ if (opndNotUsed)
+ {
+ ControlFlowGraph* cfg = irManager->getFlowGraph();
+ Node* destination = ((BranchInst*)jump)->getTrueTarget();
+ if ((jump->getMnemonic() == Mnemonic_JNE || movopnd2->getImmValue() == 1) && !(jump->getMnemonic() == Mnemonic_JNE && movopnd2->getImmValue() == 1))
+ {
+ destination = ((BranchInst*)jump)->getFalseTarget();
+ }
+ if (node->getId() != next->getNode()->getId())
+ {
+ if (methodMarkerOccur)
+ {
+ inst->getNode()->appendInst(irManager->newMethodEndPseudoInst(methodMarker->getMethodDesc()));
+ }
+ inst->unlink();
+ Edge *outEdge = node->getOutEdge(Edge::Kind_Unconditional);
+ cfg->replaceEdgeTarget(outEdge, destination, true);
+ cfg->purgeUnreachableNodes(); // previous successor may become unreachable
+ }
+ else
+ {
+ cfg->removeEdge(node->getOutEdge(Edge::Kind_True));
+ cfg->removeEdge(node->getOutEdge(Edge::Kind_False));
+ cfg->addEdge(node, destination);
+ inst->unlink();
+ next->unlink();
+ jump->unlink();
+ }
+
+ return Changed_Node;
+ }
+ }
+ }
+ }
+ return Changed_Nothing;
+}
+
+
PeepHoleOpt::Changed PeepHoleOpt::handleInst_CMP(Inst* inst) {
assert(inst->getMnemonic()==Mnemonic_CMP);
@@ -499,70 +690,286 @@
// Only these mnemonics have the majestic name of ALUs.
assert(mnemonic == Mnemonic_ADD || mnemonic == Mnemonic_SUB ||
+ mnemonic == Mnemonic_ADC || mnemonic == Mnemonic_SBB ||
mnemonic == Mnemonic_OR || mnemonic == Mnemonic_XOR ||
- mnemonic == Mnemonic_AND ||
+ mnemonic == Mnemonic_AND ||
mnemonic == Mnemonic_CMP || mnemonic == Mnemonic_TEST);
-
- if (mnemonic == Mnemonic_AND && inst->getForm() == Inst::Form_Extended) {
+ if (mnemonic == Mnemonic_AND)
+ {
Inst::Opnds defs(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
Opnd* dst = inst->getOpnd(defs.begin());
Inst::Opnds uses(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
Opnd* src1= inst->getOpnd(uses.begin());
Opnd* src2= inst->getOpnd(uses.next(uses.begin()));
- if (!isImm(src2) && isImm(src1)) {
- Opnd* tmp = src1; src1 = src2; src2 = tmp;
- }
- if (isImm32(src2)) {
- Inst* nextInst = inst->getNextInst();
- bool dstIsNotUsed = dst->getRefCount() == 1;
- bool removeNextInst = false;
- if (dst->getRefCount()==2 && nextInst!=NULL && nextInst->getMnemonic() == Mnemonic_CMP) {
- Inst::Opnds cmp_uses(nextInst, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
- Opnd* cmp_src1= nextInst->getOpnd(cmp_uses.begin());
- Opnd* cmp_src2= nextInst->getOpnd(cmp_uses.next(cmp_uses.begin()));
- if (cmp_src1 == dst && isImm(cmp_src2) && cmp_src2->getImmValue() == 0) {
- removeNextInst = true;
- dstIsNotUsed = true;
- }
+
+ Opnd *newopnd2;
+ // test can work only with operands having equal sizes
+ if (isImm(src2) && src2->getSize() != src1->getSize())
+ newopnd2 = irManager->newImmOpnd(src1->getType(), src2->getImmValue());
+ else
+ newopnd2 = src2;
+ if (!isMem(dst) && !isMem(src1) && !isMem(src2))
+ {
+ BitSet ls(irManager->getMemoryManager(), irManager->getOpndCount());
+ irManager->updateLivenessInfo();
+ irManager->getLiveAtExit(inst->getNode(), ls);
+ for (Inst* i = (Inst*)inst->getNode()->getLastInst(); i!=inst; i = i->getPrevInst()) {
+ irManager->updateLiveness(i, ls);
}
- if (dstIsNotUsed) {
- if (Log::isEnabled()) Log::out()<<"I"<<inst->getId()<<" replacing AND with TEST"<<std::endl;
- irManager->newInst(Mnemonic_TEST, src1, src2)->insertBefore(inst);
- if (removeNextInst) {
- nextInst->unlink();
- }
+ bool dstNotUsed = !ls.getBit(dst->getId());
+ if (dstNotUsed)
+ {
+ // what: AND opnd1, opnd2 => TEST opnd1, opnd2
+ // nb: applicable if opnd1 will not be used further
+
+ if (inst->getForm() == Inst::Form_Extended)
+ irManager->newInstEx(Mnemonic_TEST, 0, src1, newopnd2)->insertAfter(inst);
+ else
+ irManager->newInst(Mnemonic_TEST, src1, newopnd2)->insertAfter(inst);
inst->unlink();
return Changed_Inst;
}
}
}
+ return Changed_Nothing;
+}
-
- // Only process simple variants: ALU opcodes that either define flags
- //and use 2 operands, or simply use 2 operands
- unsigned leftIndex = 0;
- if (isReg(inst->getOpnd(leftIndex), RegName_EFLAGS)) {
- ++leftIndex;
- }
-
- const unsigned rightIndex = leftIndex + 1;
-
- Opnd* left = inst->getOpnd(leftIndex);
- Opnd* right = inst->getOpnd(rightIndex);
-
- if (mnemonic != Mnemonic_TEST &&
- isReg(left) && isImm32(right) && fitsImm8(right)) {
- /* what: OPERATION reg, imm32 => OPERATION reg, imm8
- why: shorter instruction
- nb: applicable for all ALUs, but TEST
- */
- right = convertImmToImm8(right);
- replaceOpnd(inst, rightIndex, right);
- return Changed_Opnd;
- }
+PeepHoleOpt::Changed PeepHoleOpt::handleInst_SETcc(Inst* inst)
+{
+ if (((BasicBlock*)inst->getNode())->getLayoutSucc() == NULL)
+ {
+ Mnemonic mn = inst->getMnemonic();
+
+ Inst* prev = inst->getPrevInst();
+ Inst *next = inst->getNextInst();
- return Changed_Nothing;
+ Node *currNode = inst->getNode();
+ bool methodMarkerOccur = false;
+ MethodMarkerPseudoInst* methodMarker = NULL;
+ // ignoring instructions that have no effect and saving method markers to correct them during optimizations
+ while (next == NULL || next->getKind() == Inst::Kind_MethodEndPseudoInst || next->getMnemonic() == Mnemonic_JMP)
+ {
+ if (next == NULL)
+ {
+ currNode = currNode->getOutEdge(Edge::Kind_Unconditional)->getTargetNode();
+ if (currNode->getKind() == Node::Kind_Exit)
+ return Changed_Nothing;
+ next = (Inst*) currNode->getFirstInst();
+ }
+ else
+ {
+ if (next->getKind() == Inst::Kind_MethodEndPseudoInst)
+ {
+ //max 1 saved method marker
+ if (methodMarkerOccur)
+ {
+ return Changed_Nothing;
+ }
+ methodMarker = (MethodMarkerPseudoInst*)next;
+ methodMarkerOccur = true;
+ }
+ next = next->getNextInst();
+ }
+ }
+
+ Inst *next2 = next->getNextInst();
+
+ bool step1 = true;
+ currNode = inst->getNode();
+ while (currNode != next->getNode())
+ {
+ currNode = currNode->getOutEdge(Edge::Kind_Unconditional)->getTargetNode();
+ if (currNode->getInDegree()!=1)
+ {
+ step1 = false;
+ break;
+ }
+ }
+
+ // step1:
+ // ------------------------------------------
+ // MOV opnd, 0 MOV opnd2, 0
+ // SETcc opnd -> SETcc opnd2
+ // MOV opnd2, opnd
+ // ------------------------------------------
+ // nb: applicable if opnd will not be used further
+ if (step1 && prev!= NULL && prev->getMnemonic() == Mnemonic_MOV &&
+ next!= NULL && next->getMnemonic() == Mnemonic_MOV)
+ {
+ Opnd *prevopnd1, *prevopnd2, *nextopnd1, *nextopnd2, *setopnd;
+ if (prev->getKind() == Inst::Kind_CopyPseudoInst)
+ {
+ prevopnd1 = prev->getOpnd(0);
+ prevopnd2 = prev->getOpnd(1);
+ }
+ else
+ {
+ Inst::Opnds prevuses(prev, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Inst::Opnds prevdefs(prev, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ prevopnd1 = prev->getOpnd(prevdefs.begin());
+ prevopnd2 = prev->getOpnd(prevuses.begin());
+ }
+ if (next->getKind() == Inst::Kind_CopyPseudoInst)
+ {
+ nextopnd1 = next->getOpnd(0);
+ nextopnd2 = next->getOpnd(1);
+ }
+ else
+ {
+ Inst::Opnds nextuses(next, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Inst::Opnds nextdefs(next, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ nextopnd1 = next->getOpnd(nextdefs.begin());
+ nextopnd2 = next->getOpnd(nextuses.begin());
+ }
+ Inst::Opnds setdefs(inst, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ setopnd = inst->getOpnd(setdefs.begin());
+
+ if (isReg(nextopnd1) &&
+ prevopnd1->getId() == setopnd->getId() &&
+ setopnd->getId() == nextopnd2->getId() &&
+ isImm(prevopnd2) && prevopnd2->getImmValue() == 0
+ )
+ {
+ BitSet ls(irManager->getMemoryManager(), irManager->getOpndCount());
+ irManager->updateLivenessInfo();
+ irManager->getLiveAtExit(next->getNode(), ls);
+ for (Inst* i = (Inst*)next->getNode()->getLastInst(); i!=next; i = i->getPrevInst()) {
+ irManager->updateLiveness(i, ls);
+ }
+ bool opndNotUsed = !ls.getBit(setopnd->getId());
+ if (opndNotUsed)
+ {
+ if (nextopnd1->getRegName() != RegName_Null &&
+ Constraint::getAliasRegName(nextopnd1->getRegName(), OpndSize_8) == RegName_Null)
+ {
+ nextopnd1->assignRegName(setopnd->getRegName());
+ }
+ irManager->newInst(Mnemonic_MOV, nextopnd1, prevopnd2)->insertBefore(inst);
+ irManager->newInst(mn, nextopnd1)->insertBefore(inst);
+ prev->unlink();
+ inst->unlink();
+ next->unlink();
+ return Changed_Node;
+ }
+ }
+ }
+
+ // step2:
+ // --------------------------------------------------------------
+ // MOV opnd, 0 Jcc smwh Jcc smwh
+ // SETcc opnd -> BB1: v BB1:
+ // CMP opnd, 0 ...
+ // Jcc smwh CMP opnd, 0
+ // BB1: Jcc smwh
+ // --------------------------------------------------------------
+ // nb: applicable if opnd will not be used further
+ // nb: conditions of new jumps are calculated from conditions of old jump and set instructions
+ if (prev!= NULL && prev->getMnemonic() == Mnemonic_MOV &&
+ next!= NULL && (next->getMnemonic() == Mnemonic_CMP || next->getMnemonic() == Mnemonic_TEST) &&
+ next2!= NULL && (next2->getMnemonic() == Mnemonic_JG || next2->getMnemonic() == Mnemonic_JE || next2->getMnemonic() == Mnemonic_JNE) )
+ {
+ Opnd* movopnd1;
+ Opnd* movopnd2;
+ if (prev->getKind() == Inst::Kind_CopyPseudoInst)
+ {
+ movopnd1 = prev->getOpnd(0);
+ movopnd2 = prev->getOpnd(1);
+ }
+ else
+ {
+ Inst::Opnds movuses(prev, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Inst::Opnds movdefs(prev, Inst::OpndRole_Explicit|Inst::OpndRole_Def);
+ movopnd1 = prev->getOpnd(movdefs.begin());
+ movopnd2 = prev->getOpnd(movuses.begin());
+ }
+ Inst::Opnds cmpuses(next, Inst::OpndRole_Explicit|Inst::OpndRole_Use);
+ Opnd* cmpopnd1 = next->getOpnd(cmpuses.begin());
+ Opnd* cmpopnd2 = next->getOpnd(cmpuses.next(cmpuses.begin()));
+
+ if (
+ isImm(movopnd2) && movopnd2->getImmValue() == 0 &&
+ movopnd1->getId() == cmpopnd1->getId() &&
+ //case CMP:
+ (next->getMnemonic() != Mnemonic_CMP || isImm(cmpopnd2) && cmpopnd2->getImmValue() == 0) &&
+ //case TEST:
+ (next->getMnemonic() != Mnemonic_TEST || cmpopnd1->getId() == cmpopnd2->getId())
+ )
+ {
+ BitSet ls(irManager->getMemoryManager(), irManager->getOpndCount());
+ irManager->updateLivenessInfo();
+ irManager->getLiveAtExit(next2->getNode(), ls);
+ bool opndNotUsed = !ls.getBit(movopnd1->getId());
+ if (opndNotUsed)
+ {
+ BranchInst* br = (BranchInst*) next2;
+
+ Mnemonic newjumpmn = Mnemonic_JZ;
+ if (next2->getMnemonic() == Mnemonic_JE)
+ {
+ switch (mn)
+ {
+ case Mnemonic_SETG:
+ newjumpmn = Mnemonic_JLE; break;
+ case Mnemonic_SETE:
+ newjumpmn = Mnemonic_JNE; break;
+ case Mnemonic_SETL:
+ newjumpmn = Mnemonic_JGE; break;
+ case Mnemonic_SETNE:
+ newjumpmn = Mnemonic_JE; break;
+ default:
+ assert(0); break;
+ }
+ }
+ else
+ {
+ switch (mn)
+ {
+ case Mnemonic_SETG:
+ newjumpmn = Mnemonic_JG; break;
+ case Mnemonic_SETE:
+ newjumpmn = Mnemonic_JE; break;
+ case Mnemonic_SETL:
+ newjumpmn = Mnemonic_JL; break;
+ case Mnemonic_SETNE:
+ newjumpmn = Mnemonic_JNE; break;
+ default:
+ assert(0); break;
+ }
+ }
+
+ if (inst->getNode()->getId() != next->getNode()->getId())
+ {
+ ControlFlowGraph* cfg = irManager->getFlowGraph();
+ cfg->removeEdge(inst->getNode()->getOutEdge(Edge::Kind_Unconditional));
+
+ double trueEdgeProb = next2->getNode()->getOutEdge(Edge::Kind_True)->getEdgeProb();
+ double falseEdgeProb = next2->getNode()->getOutEdge(Edge::Kind_False)->getEdgeProb();
+ cfg->addEdge(inst->getNode(), br->getTrueTarget(), trueEdgeProb);
+ cfg->addEdge(inst->getNode(), br->getFalseTarget(), falseEdgeProb);
+ irManager->newBranchInst(newjumpmn, br->getTrueTarget(), br->getFalseTarget())->insertAfter(inst);
+ if (methodMarkerOccur)
+ {
+ inst->getNode()->appendInst(irManager->newMethodEndPseudoInst(methodMarker->getMethodDesc()));
+ }
+ prev->unlink();
+ inst->unlink();
+ cfg->purgeUnreachableNodes();
+ }
+ else
+ {
+ irManager->newBranchInst(newjumpmn, br->getTrueTarget(), br->getFalseTarget())->insertAfter(next2);
+ prev->unlink();
+ inst->unlink();
+ next->unlink();
+ next2->unlink();
+ }
+ return Changed_Node;
+ }// endif opndNotUsed
+ }
+ }
+ }
+ return Changed_Nothing;
}
PeepHoleOpt::Changed PeepHoleOpt::handleInst_SSEMov(Inst* inst)
@@ -677,3 +1084,4 @@
}
}}; // ~namespace Jitrino::Ia32
+