search for: createmul

Hi. This is part of my code: ... if (auto* op = dyn_cast<BinaryOperator>(&I)) { Value* lhs = op->getOperand(0); Value* rhs = op->getOperand(1); Value* mul = builder.CreateMul(lhs, rhs); for (auto& U : op->uses()) { User* user = U.getUser(); user->setOperand(U.getOperandNo(), mul); } I.eraseFromParent(); } ... This leads to the following runtime error: LLVMSymbolizer: error reading file: No such file or directory ... Does anybody know the...

...(); for (inst_iterator It = inst_begin(&F), Ie = inst_end(&F); It != Ie;) { Instruction *I = &*(It++); if (auto* op = dyn_cast<BinaryOperator>(I)) { IRBuilder<NoFolder> builder(op); Value* lhs = op->getOperand(0); Value* rhs = op->getOperand(1); Value* mul = builder.CreateMul(lhs, rhs); for (auto& U : op->uses()) { User* user = U.getUser(); user->setOperand(U.getOperandNo(), mul); } //I->eraseFromParent(); dels.push_back(I); } } for (auto &I : dels) { I->eraseFromParent(); } ... On Wed, Aug 8, 2018 at 6:16 PM, mayuyu.io <admin at mayuyu.io&...

hi, list, I found AMDGPUPromoteAlloca calculates newly ptr as follows: std::tie(TCntY, TCntZ) = getLocalSizeYZ(Builder); Value *TIdX = getWorkitemID(Builder, 0); Value *TIdY = getWorkitemID(Builder, 1); Value *TIdZ = getWorkitemID(Builder, 2); Value *Tmp0 = Builder.CreateMul(TCntY, TCntZ, "", true, true); Tmp0 = Builder.CreateMul(Tmp0, TIdX); Value *Tmp1 = Builder.CreateMul(TIdY, TCntZ, "", true, true); Value *TID = Builder.CreateAdd(Tmp0, Tmp1); TID = Builder.CreateAdd(TID, TIdZ); it assumes that we enable 3 dims already? actually,...

...ds to it. The whole code is: ... bool runOnFunction(Function &F) override { for (auto &I : instructions(F)) { if (auto* op = dyn_cast<BinaryOperator>(&I)) { IRBuilder<> builder(op); Value* lhs = op->getOperand(0); Value* rhs = op->getOperand(1); Value* mul = builder.CreateMul(lhs, rhs); for (auto& U : op->uses()) { User* user = U.getUser(); user->setOperand(U.getOperandNo(), mul); } I.eraseFromParent(); } } ... And I think that the code worked well with LLVM-3.6.0 that I tested one year ago. Now, I use LLVM-6.0.0. Regards. On Tue, Aug 7, 2018 at 8:...

...n(&F), Ie = inst_end(&F); It != Ie;) { > Instruction *I = &*(It++); > > if (auto* op = dyn_cast<BinaryOperator>(I)) { > IRBuilder<NoFolder> builder(op); > > Value* lhs = op->getOperand(0); > Value* rhs = op->getOperand(1); > Value* mul = builder.CreateMul(lhs, rhs); > > for (auto& U : op->uses()) { > User* user = U.getUser(); > user->setOperand(U.getOperandNo(), mul); > } > //I->eraseFromParent(); > dels.push_back(I); > } > } > > for (auto &I : dels) { > I->eraseFromParent(); > } > .....

...nFunction(Function &F) override { > > for (auto &I : instructions(F)) { > > if (auto* op = dyn_cast<BinaryOperator>(&I)) { > IRBuilder<> builder(op); > > Value* lhs = op->getOperand(0); > Value* rhs = op->getOperand(1); > Value* mul = builder.CreateMul(lhs, rhs); > > for (auto& U : op->uses()) { > User* user = U.getUser(); > user->setOperand(U.getOperandNo(), mul); > } > > I.eraseFromParent(); > } > > } > ... > And I think that the code worked well with LLVM-3.6.0 that I tested one > year a...

...is my first patch so please let me know if there are any >> problems or anything I need to do differently. >> > And there were. updated patches attached. Looking good. One big comment: Please attach patches to email instead of including them inline. Some nits: > + Value *CreateMul(Value *LHS, Value *RHS, const char *Name = "") { > + if (Constant *LC = dyn_cast<Constant>(LHS)) > + if (Constant *RC = dyn_cast<Constant>(RHS)) > + return ConstantExpr::getMul(LC, RC); > + return Insert(BinaryOperator::createMul(LHS, RHS, N...

...em.cpp > 168 Instruction *InstCombiner::visitMul(BinaryOperator &I) { 268 // Canonicalize (X+C1)*CI -> X*CI+C1*CI. 269 { 270 Value *X; 271 Constant *C1; 272 if (match(Op0, m_OneUse(m_Add(m_Value(X), m_Constant(C1))))) { 273 Value *Mul = Builder->CreateMul(C1, Op1); 274 // Only go forward with the transform if C1*CI simplifies to a tidier 275 // constant. 276 if (!match(Mul, m_Mul(m_Value(), m_Value()))) 277 return BinaryOperator::CreateAdd(Builder->CreateMul(X, Op1), Mul); 278 } 279 } If my under...

Dominic Hamon wrote: > Duncan Sands wrote: >>> Another option that was discussed in #llvm is to nuke LLVMBuilder >>> and rename LLVMFoldingBuilder to LLVMBuilder. If this was the case, >>> I'd argue for a flag in the Builder that could retain the old >>> non-folding functionality for debugging purposes. >>> >> >> this plan

Duncan Sands wrote: >> Another option that was discussed in #llvm is to nuke LLVMBuilder and >> rename LLVMFoldingBuilder to LLVMBuilder. If this was the case, I'd >> argue for a flag in the Builder that could retain the old non-folding >> functionality for debugging purposes. >> > > this plan sounds good to me. However it's not clear to me how

...eading the code in Gallium-3D driver in a mesa3d branch, which converts the shader programs (TGSI tokens) to LLVM IR. For the shader instruction also found in LLVM IR, the conversion is trivial: <code> llvm::Value * Instructions::mul(llvm::Value *in1, llvm::Value *in2) { return m_builder.CreateMul(in1, in2, name("mul")); // m_builder is a llvm::IRBuilder } </code> However, the special instrucions cannot directly be mapped to LLVM IR, like "min", the conversion involves in 'extract' the vector, create less-than-compare, create 'select' instruction, a...

...etIncomingValue(0))) > if (CE->getOpcode() == Instruction::GetElementPtr) // We want this to become explicit... > { > std::cerr << "Block Before: " << *GEPI->getParent(); > Instruction *mul = BinaryOperator::createMul(saved_trip_count, > LI->getLoopFor( phi->getIncomingBlock(1) ) > ->getCanonicalInductionVariable(), "mul.", GEPI); > Instruction *add = BinaryOperator::createAdd(mul, NewAdd, "add.&q...

...rt it. In particular, when you create an LLVMBuilder object, you can tell it where to insert all subsequently created instructions. This means you end up writing code like this: LLVMBuilder B; B.SetInsertPoint(<where-ever>); Value *V1 = B.CreateAdd(a, b, "tmp"); Value *V2 = B.CreateMul(V1, c, "whatever"); Value *V3 = B.CreateCall(FnPtr, V1, V2); ... The name strings are c strings, are always at the end of the argument list, and are always optional. This API is simple and consistent, which makes it easy to understand. It would also be really easy to build a C api f...

...gt; if (CE->getOpcode() == Instruction::GetElementPtr) // We > want this to become explicit... >> { >> std::cerr << "Block Before: " << *GEPI->getParent(); >> Instruction *mul = > BinaryOperator::createMul(saved_trip_count, >> LI->getLoopFor( phi->getIncomingBlock(1) ) >> ->getCanonicalInductionVariable(), "mul.", > GEPI); >> Instruction *add = BinaryOperator::createAdd(mul, &gt...

Hi Sanjay, Thanks, I saw this flag and it's definitely should be considered, but it appeared to me to be static characteristic of target platform. I'm not sure how appropriate it would be to change its value from a front-end. It says "Has", while optional flag would rather say "Uses" meaning that implementation cares about floating point exceptions. Regards, Sergey

...f --git a/include/llvm/Analysis/TargetFolder.h b/include/llvm/Analysis/TargetFolder.h index 587a7ef..e9b2ba17 100644 --- a/include/llvm/Analysis/TargetFolder.h +++ b/include/llvm/Analysis/TargetFolder.h @@ -62,11 +62,14 @@ public: return Fold(ConstantExpr::getFSub(LHS, RHS)); } Constant *CreateMul(Constant *LHS, Constant *RHS, - bool HasNUW = false, bool HasNSW = false) const { - return Fold(ConstantExpr::getMul(LHS, RHS, HasNUW, HasNSW)); - } - Constant *CreateFMul(Constant *LHS, Constant *RHS) const { - return Fold(ConstantExpr::getFMul(LHS, RHS)); +...

...r in a mesa3d branch, which > converts the shader programs (TGSI tokens) to LLVM IR. > > For the shader instruction also found in LLVM IR, the conversion is trivial: > > <code> > llvm::Value * Instructions::mul(llvm::Value *in1, llvm::Value *in2) { > return m_builder.CreateMul(in1, in2, name("mul")); // m_builder is a > llvm::IRBuilder > } > </code> > > However, the special instrucions cannot directly be mapped to LLVM IR, like > "min", the conversion involves in 'extract' the vector, create > less-than-compare, cre...

...uction(unsigned int, llvm::Constant*, llvm::Constant*) (in /home/gabi/vgen/Debug/vgen) ==20504==    by 0x88BD87: llvm::ConstantExpr::getTy(llvm::Type const*, unsigned int, llvm::Constant*, llvm::Constant*, unsigned int) (in /home/gabi/vgen/Debug/vgen) ==20504==    by 0x423ADA: llvm::ConstantFolder::CreateMul(llvm::Constant*, llvm::Constant*) const (ConstantFolder.h:61) ==20504==    by 0x424CD8: llvm::IRBuilder<true, llvm::ConstantFolder, llvm::IRBuilderDefaultInserter<true> >::CreateMul(llvm::Value*, llvm::Value*, llvm::Twine const&) (IRBuilder.h:364) ==20504==    by 0x4225EF: vgen::Cod...

...n() { Value *L = LHS->Codegen(); Value *R = RHS->Codegen(); if (L == 0 || R == 0) return 0; switch (Op) { case '+': return Builder.CreateAdd(L, R, "addtmp"); case '-': return Builder.CreateSub(L, R, "subtmp"); case '*': return Builder.CreateMul(L, R, "multmp"); case '<': L = Builder.CreateFCmpULT(L, R, "cmptmp"); // Convert bool 0/1 to double 0.0 or 1.0 return Builder.CreateUIToFP(L, Type::getDoubleTy(getGlobalContext()), "booltmp"); default: return ErrorV("invalid binary opera...

...odegen(); > Value *R = RHS->Codegen(); > if (L == 0 || R == 0) return 0; > > switch (Op) { > case '+': return Builder.CreateAdd(L, R, "addtmp"); > case '-': return Builder.CreateSub(L, R, "subtmp"); > case '*': return Builder.CreateMul(L, R, "multmp"); > case '<': > L = Builder.CreateFCmpULT(L, R, "cmptmp"); > // Convert bool 0/1 to double 0.0 or 1.0 > return Builder.CreateUIToFP(L, > Type::getDoubleTy(getGlobalContext()), "booltmp"); > default: return ErrorV(&...