include/llvm/MC/MCParser/AsmCond.h

   1 //===- AsmCond.h - Assembly file conditional assembly  ----------*- 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 #ifndef LLVM_MC_MCPARSER_ASMCOND_H
  10 #define LLVM_MC_MCPARSER_ASMCOND_H
  11
  12 namespace llvm {
  13
  14 /// AsmCond - Class to support conditional assembly
  15 ///
  16 /// The conditional assembly feature (.if, .else, .elseif and .endif) is
  17 /// implemented with AsmCond that tells us what we are in the middle of
  18 /// processing.  Ignore can be either true or false.  When true we are ignoring
  19 /// the block of code in the middle of a conditional.
  20
  21 class AsmCond {
  22 public:
  23   enum ConditionalAssemblyType {
  24     NoCond,     // no conditional is being processed
  25     IfCond,     // inside if conditional
  26     ElseIfCond, // inside elseif conditional
  27     ElseCond    // inside else conditional
  28   };
  29
  30   ConditionalAssemblyType TheCond = NoCond;
  31   bool CondMet = false;
  32   bool Ignore = false;
  33
  34   AsmCond() = default;
  35 };
  36
  37 } // end namespace llvm
  38
  39 #endif // LLVM_MC_MCPARSER_ASMCOND_H