Menooker commented on a change in pull request #5601: URL: https://github.com/apache/incubator-tvm/pull/5601#discussion_r427756975
########## File path: src/target/llvm/codegen_llvm.cc ########## @@ -555,12 +558,48 @@ void CodeGenLLVM::CreateSerialFor(llvm::Value* begin, llvm::Value* end, llvm::Va builder_->SetInsertPoint(for_end); } +static llvm::Value* GetInt32VectorOrScalar( + llvm::IRBuilder<llvm::ConstantFolder, llvm::IRBuilderDefaultInserter>* builder, uint32_t v, + int lanes) { + if (lanes == 1) { + return builder->getInt32(v); + } else { + std::vector<llvm::Constant*> consts; + for (int i = 0; i < lanes; i++) { + consts.emplace_back(builder->getInt32(v)); + } + return llvm::ConstantVector::get(consts); + } +} + // cast operatpr llvm::Value* CodeGenLLVM::CreateCast(DataType from, DataType to, llvm::Value* value) { llvm::Type* target = DTypeToLLVMType(to); if (value->getType() == target) return value; if (to.is_handle()) { return builder_->CreateBitCast(value, target); + } else if (to.is_float() && from.is_bfloat()) { + CHECK_EQ(from.bits(), 16); Review comment: We are actually doing TIR=>TIR legalization pass in TVM. See src/tir/transforms/bf16_legalize.cc ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org