1 //===- NumericalStabilitySanitizer.h - NSan Pass ---------------*- C++ -*--===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // \file 10 // This file defines the numerical stability sanitizer (nsan) pass. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_TRANSFORMS_INSTRUMENTATION_NUMERICALSTABIITYSANITIZER_H 15 #define LLVM_TRANSFORMS_INSTRUMENTATION_NUMERICALSTABIITYSANITIZER_H 16 17 #include "llvm/IR/PassManager.h" 18 #include "llvm/Pass.h" 19 20 namespace llvm { 21 22 /// A function pass for nsan instrumentation. 23 /// 24 /// Instruments functions to duplicate floating point computations in a 25 /// higher-precision type. 26 /// This pass inserts calls to runtime library functions. If the 27 /// functions aren't declared yet, the pass inserts the declarations. 28 struct NumericalStabilitySanitizerPass 29 : public PassInfoMixin<NumericalStabilitySanitizerPass> { 30 PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM); isRequiredNumericalStabilitySanitizerPass31 static bool isRequired() { return true; } 32 }; 33 34 } // end namespace llvm 35 36 #endif // LLVM_TRANSFORMS_INSTRUMENTATION_NUMERICALSTABIITYSANITIZER_H 37