llvm/lib/CodeGen/AsmPrinter/WasmException.h

   1 //===-- WasmException.h - Wasm Exception Framework -------------*- 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 // This file contains support for writing WebAssembly exception info into asm
  10 // files.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_WASMEXCEPTION_H
  15 #define LLVM_LIB_CODEGEN_ASMPRINTER_WASMEXCEPTION_H
  16
  17 #include "EHStreamer.h"
  18
  19 namespace llvm {
  20 class AsmPrinter;
  21 class MachineFunction;
  22 struct LandingPadInfo;
  23 template <typename T> class SmallVectorImpl;
  24
  25 class LLVM_LIBRARY_VISIBILITY WasmException : public EHStreamer {
  26 public:
  27   WasmException(AsmPrinter *A) : EHStreamer(A) {}
  28
  29   void endModule() override;
  30   void beginFunction(const MachineFunction *MF) override {}
  31   void endFunction(const MachineFunction *MF) override;
  32
  33 protected:
  34   // Compute the call site table for wasm EH.
  35   void computeCallSiteTable(
  36       SmallVectorImpl<CallSiteEntry> &CallSites,
  37       SmallVectorImpl<CallSiteRange> &CallSiteRanges,
  38       const SmallVectorImpl<const LandingPadInfo *> &LandingPads,
  39       const SmallVectorImpl<unsigned> &FirstActions) override;
  40 };
  41
  42 } // End of namespace llvm
  43
  44 #endif