AsmCond.h revision 674be02d525d4e24bc6943ed9274958c580bcfbc 
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 LLVM_MC_MCPARSER_ASMCOND_H
11#define LLVM_MC_MCPARSER_ASMCOND_H
12
13namespace 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
22class AsmCond {
23public:
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
41