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| author | Vikram S. Adve <vadve@cs.uiuc.edu> | 2002-07-08 22:56:34 +0000 |
|---|---|---|
| committer | Vikram S. Adve <vadve@cs.uiuc.edu> | 2002-07-08 22:56:34 +0000 |
| commit | 9afa88c3a73187b9454085651807896002e020ca (patch) | |
| tree | f3ed8a8de43d3ed48cb6b6dc841157ae28b70d81 /lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp | |
| parent | 5023bd4a64e6a6926c5a158bbe9957136e554f10 (diff) | |
A single MachineInstr operand may now be both a def and a use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2825 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp')
| -rw-r--r-- | lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp b/lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp index 297b64a93c..774bdc7cd7 100644 --- a/lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp +++ b/lib/Analysis/LiveVar/FunctionLiveVarInfo.cpp @@ -8,6 +8,7 @@ #include "llvm/Analysis/LiveVar/FunctionLiveVarInfo.h" #include "BBLiveVar.h" #include "llvm/CodeGen/MachineInstr.h" +#include "llvm/CodeGen/MachineCodeForBasicBlock.h" #include "llvm/Support/CFG.h" #include "Support/PostOrderIterator.h" #include "Support/SetOperations.h" @@ -216,13 +217,15 @@ static void applyTranferFuncForMInst(ValueSet &LVS, const MachineInstr *MInst) { for (MachineInstr::const_val_op_iterator OpI = MInst->begin(), OpE = MInst->end(); OpI != OpE; ++OpI) { if (!isa<BasicBlock>(*OpI)) // don't process labels - if (!OpI.isDef()) // add only if this operand is a use + // add only if this operand is a use + if (!OpI.isDef() || OpI.isDefAndUse() ) LVS.insert(*OpI); // An operand is a use - so add to use set } // do for implicit operands as well for (unsigned i = 0, e = MInst->getNumImplicitRefs(); i != e; ++i) - if (!MInst->implicitRefIsDefined(i)) + if (!MInst->implicitRefIsDefined(i) || + MInst->implicitRefIsDefinedAndUsed(i)) LVS.insert(MInst->getImplicitRef(i)); } @@ -233,7 +236,7 @@ static void applyTranferFuncForMInst(ValueSet &LVS, const MachineInstr *MInst) { //----------------------------------------------------------------------------- void FunctionLiveVarInfo::calcLiveVarSetsForBB(const BasicBlock *BB) { - const MachineCodeForBasicBlock &MIVec = BB->getMachineInstrVec(); + const MachineCodeForBasicBlock &MIVec = MachineCodeForBasicBlock::get(BB); if (DEBUG_LV >= LV_DEBUG_Instr) std::cerr << "\n======For BB " << BB->getName() |