diff options
| -rw-r--r-- | include/llvm/Constants.h | 1 | ||||
| -rw-r--r-- | include/llvm/InstrTypes.h | 4 | ||||
| -rw-r--r-- | include/llvm/Support/ConstantFolder.h | 3 | ||||
| -rw-r--r-- | include/llvm/Support/IRBuilder.h | 5 | ||||
| -rw-r--r-- | include/llvm/Support/NoFolder.h | 3 | ||||
| -rw-r--r-- | include/llvm/Support/TargetFolder.h | 3 | ||||
| -rw-r--r-- | lib/VMCore/Constants.cpp | 6 | ||||
| -rw-r--r-- | lib/VMCore/Instructions.cpp | 12 |
8 files changed, 37 insertions, 0 deletions
diff --git a/include/llvm/Constants.h b/include/llvm/Constants.h index caa13f6..7440f99 100644 --- a/include/llvm/Constants.h +++ b/include/llvm/Constants.h @@ -692,6 +692,7 @@ public: static Constant *getIntToPtr(Constant *C, const Type *Ty); static Constant *getBitCast (Constant *C, const Type *Ty); + static Constant *getNSWNeg(Constant *C); static Constant *getNSWAdd(Constant *C1, Constant *C2); static Constant *getNSWSub(Constant *C1, Constant *C2); static Constant *getExactSDiv(Constant *C1, Constant *C2); diff --git a/include/llvm/InstrTypes.h b/include/llvm/InstrTypes.h index bc89969..b252902 100644 --- a/include/llvm/InstrTypes.h +++ b/include/llvm/InstrTypes.h @@ -308,6 +308,10 @@ public: Instruction *InsertBefore = 0); static BinaryOperator *CreateNeg(Value *Op, const Twine &Name, BasicBlock *InsertAtEnd); + static BinaryOperator *CreateNSWNeg(Value *Op, const Twine &Name = "", + Instruction *InsertBefore = 0); + static BinaryOperator *CreateNSWNeg(Value *Op, const Twine &Name, + BasicBlock *InsertAtEnd); static BinaryOperator *CreateFNeg(Value *Op, const Twine &Name = "", Instruction *InsertBefore = 0); static BinaryOperator *CreateFNeg(Value *Op, const Twine &Name, diff --git a/include/llvm/Support/ConstantFolder.h b/include/llvm/Support/ConstantFolder.h index b73cea0..eea33df 100644 --- a/include/llvm/Support/ConstantFolder.h +++ b/include/llvm/Support/ConstantFolder.h @@ -109,6 +109,9 @@ public: Constant *CreateNeg(Constant *C) const { return ConstantExpr::getNeg(C); } + Constant *CreateNSWNeg(Constant *C) const { + return ConstantExpr::getNSWNeg(C); + } Constant *CreateFNeg(Constant *C) const { return ConstantExpr::getFNeg(C); } diff --git a/include/llvm/Support/IRBuilder.h b/include/llvm/Support/IRBuilder.h index 1310d70..22b05d6 100644 --- a/include/llvm/Support/IRBuilder.h +++ b/include/llvm/Support/IRBuilder.h @@ -478,6 +478,11 @@ public: return Folder.CreateNeg(VC); return Insert(BinaryOperator::CreateNeg(V), Name); } + Value *CreateNSWNeg(Value *V, const Twine &Name = "") { + if (Constant *VC = dyn_cast<Constant>(V)) + return Folder.CreateNSWNeg(VC); + return Insert(BinaryOperator::CreateNSWNeg(V), Name); + } Value *CreateFNeg(Value *V, const Twine &Name = "") { if (Constant *VC = dyn_cast<Constant>(V)) return Folder.CreateFNeg(VC); diff --git a/include/llvm/Support/NoFolder.h b/include/llvm/Support/NoFolder.h index 7f2f149..f6f4c5b 100644 --- a/include/llvm/Support/NoFolder.h +++ b/include/llvm/Support/NoFolder.h @@ -115,6 +115,9 @@ public: Value *CreateNeg(Constant *C) const { return BinaryOperator::CreateNeg(C); } + Value *CreateNSWNeg(Constant *C) const { + return BinaryOperator::CreateNSWNeg(C); + } Value *CreateNot(Constant *C) const { return BinaryOperator::CreateNot(C); } diff --git a/include/llvm/Support/TargetFolder.h b/include/llvm/Support/TargetFolder.h index afed853..9aa7625 100644 --- a/include/llvm/Support/TargetFolder.h +++ b/include/llvm/Support/TargetFolder.h @@ -122,6 +122,9 @@ public: Constant *CreateNeg(Constant *C) const { return Fold(ConstantExpr::getNeg(C)); } + Constant *CreateNSWNeg(Constant *C) const { + return Fold(ConstantExpr::getNSWNeg(C)); + } Constant *CreateFNeg(Constant *C) const { return Fold(ConstantExpr::getFNeg(C)); } diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp index a62f75b..2507402 100644 --- a/lib/VMCore/Constants.cpp +++ b/lib/VMCore/Constants.cpp @@ -627,6 +627,12 @@ Constant* ConstantVector::get(Constant* const* Vals, unsigned NumVals) { return get(std::vector<Constant*>(Vals, Vals+NumVals)); } +Constant* ConstantExpr::getNSWNeg(Constant* C) { + assert(C->getType()->isIntOrIntVector() && + "Cannot NEG a nonintegral value!"); + return getNSWSub(ConstantFP::getZeroValueForNegation(C->getType()), C); +} + Constant* ConstantExpr::getNSWAdd(Constant* C1, Constant* C2) { return getTy(C1->getType(), Instruction::Add, C1, C2, OverflowingBinaryOperator::NoSignedWrap); diff --git a/lib/VMCore/Instructions.cpp b/lib/VMCore/Instructions.cpp index b03ee93..97fec39 100644 --- a/lib/VMCore/Instructions.cpp +++ b/lib/VMCore/Instructions.cpp @@ -1772,6 +1772,18 @@ BinaryOperator *BinaryOperator::CreateNeg(Value *Op, const Twine &Name, Op->getType(), Name, InsertAtEnd); } +BinaryOperator *BinaryOperator::CreateNSWNeg(Value *Op, const Twine &Name, + Instruction *InsertBefore) { + Value *zero = ConstantFP::getZeroValueForNegation(Op->getType()); + return BinaryOperator::CreateNSWSub(zero, Op, Name, InsertBefore); +} + +BinaryOperator *BinaryOperator::CreateNSWNeg(Value *Op, const Twine &Name, + BasicBlock *InsertAtEnd) { + Value *zero = ConstantFP::getZeroValueForNegation(Op->getType()); + return BinaryOperator::CreateNSWSub(zero, Op, Name, InsertAtEnd); +} + BinaryOperator *BinaryOperator::CreateFNeg(Value *Op, const Twine &Name, Instruction *InsertBefore) { Value *zero = ConstantFP::getZeroValueForNegation(Op->getType()); |