tools/llvm-mc/AsmCond.h

   1 //===- AsmCond.h - Assembly file conditional assembly  ----------*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef ASMCOND_H
  11 #define ASMCOND_H
  12
  13 namespace llvm {
  14
  15 /// AsmCond - Class to support conditional assembly
  16 ///
  17 /// The conditional assembly feature (.if, .else, .elseif and .endif) is
  18 /// implemented with AsmCond that tells us what we are in the middle of
  19 /// processing.  Ignore can be either true or false.  When true we are ignoring
  20 /// the block of code in the middle of a conditional.
  21
  22 class AsmCond {
  23 public:
  24   enum ConditionalAssemblyType {
  25     NoCond,     // no conditional is being processed
  26     IfCond,     // inside if conditional
  27     ElseIfCond, // inside elseif conditional
  28     ElseCond    // inside else conditional
  29   };
  30
  31   ConditionalAssemblyType TheCond;
  32   bool CondMet;
  33   bool Ignore;
  34
  35   AsmCond() : TheCond(NoCond), CondMet(false), Ignore(false) {}
  36 };
  37
  38 } // end namespace llvm
  39
  40 #endif