Searched refs:KnownZero (Results 1 - 25 of 38) sorted by relevance

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/freebsd-9.3-release/contrib/llvm/lib/Analysis/
H A DValueTracking.cpp48 APInt &KnownZero, APInt &KnownOne,
57 unsigned BitWidth = KnownZero.getBitWidth();
69 KnownZero = APInt::getHighBitsSet(BitWidth, NLZ2);
75 unsigned BitWidth = KnownZero.getBitWidth();
96 KnownZero |= KnownZero2 & Mask;
101 KnownZero |= APInt::getLowBitsSet(BitWidth,
107 KnownZero |= LHSKnownZero & Mask;
112 if (!KnownZero.isNegative() && !KnownOne.isNegative()) {
117 KnownZero |= APInt::getSignBit(BitWidth);
124 KnownZero |
47 ComputeMaskedBitsAddSub(bool Add, Value *Op0, Value *Op1, bool NSW, APInt &KnownZero, APInt &KnownOne, APInt &KnownZero2, APInt &KnownOne2, const DataLayout *TD, unsigned Depth) argument
133 ComputeMaskedBitsMul(Value *Op0, Value *Op1, bool NSW, APInt &KnownZero, APInt &KnownOne, APInt &KnownZero2, APInt &KnownOne2, const DataLayout *TD, unsigned Depth) argument
195 computeMaskedBitsLoad(const MDNode &Ranges, APInt &KnownZero) argument
229 ComputeMaskedBits(Value *V, APInt &KnownZero, APInt &KnownOne, const DataLayout *TD, unsigned Depth) argument
802 ComputeSignBit(Value *V, bool &KnownZero, bool &KnownOne, const DataLayout *TD, unsigned Depth) argument
[all...]
H A DLint.cpp515 APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
516 ComputeMaskedBits(V, KnownZero, KnownOne, DL);
517 return KnownZero.isAllOnesValue();
528 // For a vector, KnownZero will only be true if all values are zero, so check
536 APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
537 ComputeMaskedBits(Elem, KnownZero, KnownOne, DL);
538 if (KnownZero.isAllOnesValue())
/freebsd-9.3-release/contrib/llvm/lib/Transforms/InstCombine/
H A DInstCombineSimplifyDemanded.cpp55 APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
59 KnownZero, KnownOne, 0);
70 APInt &KnownZero, APInt &KnownOne,
73 KnownZero, KnownOne, Depth);
87 /// to be one in the expression. KnownZero contains all the bits that are known
90 /// the expression. KnownOne and KnownZero always follow the invariant that
91 /// KnownOne & KnownZero == 0. That is, a bit can't be both 1 and 0. Note that
92 /// the bits in KnownOne and KnownZero may only be accurate for those bits set
93 /// in DemandedMask. Note also that the bitwidth of V, DemandedMask, KnownZero
102 APInt &KnownZero, APIn
69 SimplifyDemandedBits(Use &U, APInt DemandedMask, APInt &KnownZero, APInt &KnownOne, unsigned Depth) argument
101 SimplifyDemandedUseBits(Value *V, APInt DemandedMask, APInt &KnownZero, APInt &KnownOne, unsigned Depth) argument
844 SimplifyShrShlDemandedBits(Instruction *Shr, Instruction *Shl, APInt DemandedMask, APInt &KnownZero, APInt &KnownOne) argument
[all...]
H A DInstCombine.h303 void ComputeMaskedBits(Value *V, APInt &KnownZero, argument
305 return llvm::ComputeMaskedBits(V, KnownZero, KnownOne, TD, Depth);
332 APInt& KnownZero, APInt& KnownOne,
335 APInt& KnownZero, APInt& KnownOne,
340 APInt DemandedMask, APInt &KnownZero,
H A DInstCombineCalls.cpp321 APInt KnownZero(BitWidth, 0);
323 ComputeMaskedBits(II->getArgOperand(0), KnownZero, KnownOne);
326 if ((Mask & KnownZero) == Mask)
339 APInt KnownZero(BitWidth, 0);
341 ComputeMaskedBits(II->getArgOperand(0), KnownZero, KnownOne);
344 if ((Mask & KnownZero) == Mask)
H A DInstCombineCompares.cpp177 static void ComputeSignedMinMaxValuesFromKnownBits(const APInt& KnownZero, argument
180 assert(KnownZero.getBitWidth() == KnownOne.getBitWidth() &&
181 KnownZero.getBitWidth() == Min.getBitWidth() &&
182 KnownZero.getBitWidth() == Max.getBitWidth() &&
183 "KnownZero, KnownOne and Min, Max must have equal bitwidth.");
184 APInt UnknownBits = ~(KnownZero|KnownOne);
201 static void ComputeUnsignedMinMaxValuesFromKnownBits(const APInt &KnownZero, argument
204 assert(KnownZero.getBitWidth() == KnownOne.getBitWidth() &&
205 KnownZero.getBitWidth() == Min.getBitWidth() &&
206 KnownZero
[all...]
H A DInstCombineCasts.cpp552 APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
553 ComputeMaskedBits(ICI->getOperand(0), KnownZero, KnownOne);
555 APInt KnownZeroMask(~KnownZero);
928 APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
929 ComputeMaskedBits(Op0, KnownZero, KnownOne);
931 APInt KnownZeroMask(~KnownZero);
/freebsd-9.3-release/contrib/llvm/include/llvm/CodeGen/
H A DFunctionLoweringInfo.h104 APInt KnownOne, KnownZero; member in struct:llvm::FunctionLoweringInfo::LiveOutInfo
106 KnownZero(1, 0) {}
174 const APInt &KnownZero, const APInt &KnownOne) {
176 if (NumSignBits == 1 && KnownZero == 0 && KnownOne == 0)
183 LOI.KnownZero = KnownZero;
173 AddLiveOutRegInfo(unsigned Reg, unsigned NumSignBits, const APInt &KnownZero, const APInt &KnownOne) argument
/freebsd-9.3-release/contrib/llvm/include/llvm/Analysis/
H A DValueTracking.h31 /// known to be either zero or one and return them in the KnownZero/KnownOne
40 void ComputeMaskedBits(Value *V, APInt &KnownZero, APInt &KnownOne,
42 void computeMaskedBitsLoad(const MDNode &Ranges, APInt &KnownZero);
46 void ComputeSignBit(Value *V, bool &KnownZero, bool &KnownOne,
/freebsd-9.3-release/contrib/llvm/lib/CodeGen/SelectionDAG/
H A DTargetLowering.cpp364 /// analyze the expression and return a mask of KnownOne and KnownZero bits for
365 /// the expression (used to simplify the caller). The KnownZero/One bits may
369 APInt &KnownZero,
380 KnownZero = KnownOne = APInt(BitWidth, 0);
385 // If not at the root, Just compute the KnownZero/KnownOne bits to
387 TLO.DAG.ComputeMaskedBits(Op, KnownZero, KnownOne, Depth);
407 KnownZero = ~KnownOne;
427 if (SimplifyDemandedBits(Op.getOperand(1), NewMask, KnownZero,
430 assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");
431 if (SimplifyDemandedBits(Op.getOperand(0), ~KnownZero
367 SimplifyDemandedBits(SDValue Op, const APInt &DemandedMask, APInt &KnownZero, APInt &KnownOne, TargetLoweringOpt &TLO, unsigned Depth) const argument
1057 computeMaskedBitsForTargetNode(const SDValue Op, APInt &KnownZero, APInt &KnownOne, const SelectionDAG &DAG, unsigned Depth) const argument
1112 APInt KnownZero, KnownOne; local
[all...]
H A DFunctionLoweringInfo.cpp296 if (BitWidth > LOI->KnownZero.getBitWidth()) {
298 LOI->KnownZero = LOI->KnownZero.zextOrTrunc(BitWidth);
335 DestLOI.KnownZero = Zero;
343 DestLOI.KnownZero = ~Val;
361 assert(DestLOI.KnownZero.getBitWidth() == BitWidth &&
370 DestLOI.KnownZero = Zero;
378 DestLOI.KnownZero &= ~Val;
396 DestLOI.KnownZero &= SrcLOI->KnownZero;
[all...]
H A DSelectionDAG.cpp1749 APInt KnownZero, KnownOne; local
1750 ComputeMaskedBits(Op, KnownZero, KnownOne, Depth);
1751 assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");
1752 return (KnownZero & Mask) == Mask;
1756 /// known to be either zero or one and return them in the KnownZero/KnownOne
1759 void SelectionDAG::ComputeMaskedBits(SDValue Op, APInt &KnownZero, argument
1764 KnownZero = KnownOne = APInt(BitWidth, 0); // Don't know anything.
1774 KnownZero = ~KnownOne;
1778 ComputeMaskedBits(Op.getOperand(1), KnownZero, KnownOne, Depth+1);
1780 assert((KnownZero
2319 APInt KnownZero, KnownOne; local
2344 APInt KnownZero, KnownOne; local
2398 APInt KnownZero, KnownOne; local
6380 llvm::ComputeMaskedBits(const_cast<GlobalValue*>(GV), KnownZero, KnownOne, local
[all...]
H A DSelectionDAGISel.cpp594 APInt KnownZero; local
624 CurDAG->ComputeMaskedBits(Src, KnownZero, KnownOne);
625 FuncInfo->AddLiveOutRegInfo(DestReg, NumSignBits, KnownZero, KnownOne);
1606 APInt KnownZero, KnownOne; local
1607 CurDAG->ComputeMaskedBits(LHS, KnownZero, KnownOne);
/freebsd-9.3-release/contrib/llvm/lib/Target/R600/
H A DAMDGPUISelDAGToDAG.cpp520 APInt KnownZero, KnownOne; local
523 if (TLI->SimplifyDemandedBits(Op, Demanded, KnownZero, KnownOne, TLO)) {
544 APInt KnownZero; local
546 CurDAG->ComputeMaskedBits(Op, KnownZero, KnownOne);
552 if ((KnownZero & APInt(KnownZero.getBitWidth(), 0xFF000000)) == 0xFF000000 ||
H A DAMDILISelLowering.cpp254 APInt &KnownZero,
260 KnownZero = KnownOne = APInt(KnownOne.getBitWidth(), 0); // Don't know anything
266 KnownZero,
275 assert((KnownZero & KnownOne) == 0
281 KnownZero &= KnownZero2;
252 computeMaskedBitsForTargetNode( const SDValue Op, APInt &KnownZero, APInt &KnownOne, const SelectionDAG &DAG, unsigned Depth) const argument
H A DAMDGPUISelLowering.h106 /// either zero or one and return them in the \p KnownZero and \p KnownOne
109 APInt &KnownZero,
/freebsd-9.3-release/contrib/llvm/lib/Target/XCore/
H A DXCoreISelLowering.cpp390 APInt KnownZero, KnownOne; local
391 DAG.ComputeMaskedBits(Value, KnownZero, KnownOne);
392 return KnownZero.countTrailingOnes() >= 2;
1419 APInt KnownZero, KnownOne; local
1422 DAG.ComputeMaskedBits(N2, KnownZero, KnownOne);
1423 if ((KnownZero & Mask) == Mask) {
1442 APInt KnownZero, KnownOne; local
1445 DAG.ComputeMaskedBits(N2, KnownZero, KnownOne);
1446 if ((KnownZero & Mask) == Mask) {
1458 APInt KnownZero, KnownOn local
1583 computeMaskedBitsForTargetNode(const SDValue Op, APInt &KnownZero, APInt &KnownOne, const SelectionDAG &DAG, unsigned Depth) const argument
[all...]
H A DXCoreISelLowering.h178 APInt &KnownZero,
/freebsd-9.3-release/contrib/llvm/lib/Target/SystemZ/
H A DSystemZISelDAGToDAG.cpp668 APInt KnownZero, KnownOne; local
669 CurDAG->ComputeMaskedBits(Op.getOperand(0), KnownZero, KnownOne);
670 if (Used != (AndMask | InsertMask | KnownZero.getZExtValue()))
718 APInt KnownZero, KnownOne; local
719 CurDAG->ComputeMaskedBits(Input, KnownZero, KnownOne);
720 Mask |= KnownZero.getZExtValue();
743 APInt KnownZero, KnownOne; local
744 CurDAG->ComputeMaskedBits(Input, KnownZero, KnownOne);
/freebsd-9.3-release/contrib/llvm/lib/Target/Sparc/
H A DSparcISelLowering.h62 /// KnownZero/KnownOne bitsets.
64 APInt &KnownZero,
/freebsd-9.3-release/contrib/llvm/lib/Transforms/Utils/
H A DLocal.cpp928 APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
929 ComputeMaskedBits(V, KnownZero, KnownOne, DL);
930 unsigned TrailZ = KnownZero.countTrailingOnes();
/freebsd-9.3-release/contrib/llvm/lib/Target/ARM/
H A DARMISelLowering.h326 APInt &KnownZero,
/freebsd-9.3-release/contrib/llvm/lib/Target/PowerPC/
H A DPPCISelLowering.h392 APInt &KnownZero,
/freebsd-9.3-release/contrib/llvm/lib/Target/X86/
H A DX86ISelLowering.h620 /// KnownZero/KnownOne bitsets.
622 APInt &KnownZero,
/freebsd-9.3-release/contrib/llvm/include/llvm/Target/
H A DTargetLowering.h1808 /// expression and return a mask of KnownOne and KnownZero bits for the
1809 /// expression (used to simplify the caller). The KnownZero/One bits may only
1812 APInt &KnownZero, APInt &KnownOne,
1816 /// or one and return them in the KnownZero/KnownOne bitsets.
1818 APInt &KnownZero,

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