1 //===------------------- FaultMaps.h - The "FaultMaps" section --*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_CODEGEN_FAULTMAPS_H
11 #define LLVM_CODEGEN_FAULTMAPS_H
13 #include "llvm/ADT/DenseMap.h"
14 #include "llvm/MC/MCSymbol.h"
28 enum FaultKind { FaultingLoad = 1, FaultKindMax };
30 static const char *faultTypeToString(FaultKind);
32 explicit FaultMaps(AsmPrinter &AP);
34 void recordFaultingOp(FaultKind FaultTy, const MCSymbol *HandlerLabel);
35 void serializeToFaultMapSection();
38 static const char *WFMP;
42 const MCExpr *FaultingOffsetExpr;
43 const MCExpr *HandlerOffsetExpr;
46 : Kind(FaultKindMax), FaultingOffsetExpr(nullptr),
47 HandlerOffsetExpr(nullptr) {}
49 explicit FaultInfo(FaultMaps::FaultKind Kind, const MCExpr *FaultingOffset,
50 const MCExpr *HandlerOffset)
51 : Kind(Kind), FaultingOffsetExpr(FaultingOffset),
52 HandlerOffsetExpr(HandlerOffset) {}
55 typedef std::vector<FaultInfo> FunctionFaultInfos;
57 // We'd like to keep a stable iteration order for FunctionInfos to help
58 // FileCheck based testing.
59 struct MCSymbolComparator {
60 bool operator()(const MCSymbol *LHS, const MCSymbol *RHS) const {
61 return LHS->getName() < RHS->getName();
65 std::map<const MCSymbol *, FunctionFaultInfos, MCSymbolComparator>
69 void emitFunctionInfo(const MCSymbol *FnLabel, const FunctionFaultInfos &FFI);