Eliminate asm parser's dependency on TargetMachine:

- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
  to generate asm matcher subtarget feature queries. e.g.
  "ModeThumb,FeatureThumb2" is translated to
  "(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134678 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 7 insertions, 4 deletions

diff --git a/lib/MC/MCDisassembler/EDDisassembler.cpp b/lib/MC/MCDisassembler/EDDisassembler.cpp
index 7f9fcc3..a39f002 100644
--- a/lib/MC/MCDisassembler/EDDisassembler.cpp
+++ b/lib/MC/MCDisassembler/EDDisassembler.cpp
@@ -171,7 +171,7 @@ EDDisassembler::EDDisassembler(CPUKey &key) :
   std::string featureString;
   TargetMachine.reset(Tgt->createTargetMachine(tripleString, CPU,
                                                featureString));
-  
+
   const TargetRegisterInfo *registerInfo = TargetMachine->getRegisterInfo();
   
   if (!registerInfo)
@@ -183,7 +183,7 @@ EDDisassembler::EDDisassembler(CPUKey &key) :
   
   if (!AsmInfo)
     return;
-  
+
   Disassembler.reset(Tgt->createMCDisassembler());
   
   if (!Disassembler)
@@ -371,8 +371,10 @@ int EDDisassembler::parseInst(SmallVectorImpl<MCParsedAsmOperand*> &operands,
   OwningPtr<MCAsmParser> genericParser(createMCAsmParser(*Tgt, sourceMgr,
                                                          context, *streamer,
                                                          *AsmInfo));
-  OwningPtr<TargetAsmParser> TargetParser(Tgt->createAsmParser(*genericParser,
-                                                               *TargetMachine));
+
+  StringRef triple = tripleFromArch(Key.Arch);
+  OwningPtr<TargetAsmParser> TargetParser(Tgt->createAsmParser(triple, "", "",
+                                                               *genericParser));
   
   AsmToken OpcodeToken = genericParser->Lex();
   AsmToken NextToken = genericParser->Lex();  // consume next token, because specificParser expects us to
diff --git a/lib/MC/MCDisassembler/EDDisassembler.h b/lib/MC/MCDisassembler/EDDisassembler.h
index 2fcc09d..11d69c1 100644
--- a/lib/MC/MCDisassembler/EDDisassembler.h
+++ b/lib/MC/MCDisassembler/EDDisassembler.h
@@ -41,6 +41,7 @@ class MCInstPrinter;
 class MCInst;
 class MCParsedAsmOperand;
 class MCStreamer;
+class MCSubtargetInfo;
 template <typename T> class SmallVectorImpl;
 class SourceMgr;
 class Target;