[MCTargetAsmParser] Move the member varialbes that reference

MCSubtargetInfo in the subclasses into MCTargetAsmParser and define a
member function getSTI.

This is done in preparation for making changes to shrink the size of
MCRelaxableFragment. (see http://reviews.llvm.org/D14346).

llvm-svn: 253124

1 files changed, 61 insertions, 38 deletions

diff --git a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
index f4710459770..1794ede93bb 100644
--- a/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
+++ b/llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp
@@ -107,7 +107,6 @@ class MipsAsmParser : public MCTargetAsmParser {
     return static_cast<MipsTargetStreamer &>(TS);
   }
 
-  MCSubtargetInfo &STI;
   MipsABIInfo ABI;
   SmallVector<std::unique_ptr<MipsAssemblerOptions>, 2> AssemblerOptions;
   MCSymbol *CurrentFn; // Pointer to the function being parsed. It may be a
@@ -356,7 +355,7 @@ class MipsAsmParser : public MCTargetAsmParser {
   }
 
   void setFeatureBits(uint64_t Feature, StringRef FeatureString) {
-    if (!(STI.getFeatureBits()[Feature])) {
+    if (!(getSTI().getFeatureBits()[Feature])) {
       setAvailableFeatures(
           ComputeAvailableFeatures(STI.ToggleFeature(FeatureString)));
       AssemblerOptions.back()->setFeatures(STI.getFeatureBits());
@@ -364,7 +363,7 @@ class MipsAsmParser : public MCTargetAsmParser {
   }
 
   void clearFeatureBits(uint64_t Feature, StringRef FeatureString) {
-    if (STI.getFeatureBits()[Feature]) {
+    if (getSTI().getFeatureBits()[Feature]) {
       setAvailableFeatures(
           ComputeAvailableFeatures(STI.ToggleFeature(FeatureString)));
       AssemblerOptions.back()->setFeatures(STI.getFeatureBits());
@@ -373,12 +372,12 @@ class MipsAsmParser : public MCTargetAsmParser {
 
   void setModuleFeatureBits(uint64_t Feature, StringRef FeatureString) {
     setFeatureBits(Feature, FeatureString);
-    AssemblerOptions.front()->setFeatures(STI.getFeatureBits());
+    AssemblerOptions.front()->setFeatures(getSTI().getFeatureBits());
   }
 
   void clearModuleFeatureBits(uint64_t Feature, StringRef FeatureString) {
     clearFeatureBits(Feature, FeatureString);
-    AssemblerOptions.front()->setFeatures(STI.getFeatureBits());
+    AssemblerOptions.front()->setFeatures(getSTI().getFeatureBits());
   }
 
 public:
@@ -391,7 +390,7 @@ public:
 
   MipsAsmParser(MCSubtargetInfo &sti, MCAsmParser &parser,
                 const MCInstrInfo &MII, const MCTargetOptions &Options)
-      : MCTargetAsmParser(Options), STI(sti),
+    : MCTargetAsmParser(Options, sti),
         ABI(MipsABIInfo::computeTargetABI(Triple(sti.getTargetTriple()),
                                           sti.getCPU(), Options)) {
     MCAsmParserExtension::Initialize(parser);
@@ -399,15 +398,15 @@ public:
     parser.addAliasForDirective(".asciiz", ".asciz");
 
     // Initialize the set of available features.
-    setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
+    setAvailableFeatures(ComputeAvailableFeatures(getSTI().getFeatureBits()));
 
     // Remember the initial assembler options. The user can not modify these.
     AssemblerOptions.push_back(
-        llvm::make_unique<MipsAssemblerOptions>(STI.getFeatureBits()));
+        llvm::make_unique<MipsAssemblerOptions>(getSTI().getFeatureBits()));
 
     // Create an assembler options environment for the user to modify.
     AssemblerOptions.push_back(
-        llvm::make_unique<MipsAssemblerOptions>(STI.getFeatureBits()));
+        llvm::make_unique<MipsAssemblerOptions>(getSTI().getFeatureBits()));
 
     getTargetStreamer().updateABIInfo(*this);
 
@@ -433,63 +432,87 @@ public:
   /// True if all of $fcc0 - $fcc7 exist for the current ISA.
   bool hasEightFccRegisters() const { return hasMips4() || hasMips32(); }
 
-  bool isGP64bit() const { return STI.getFeatureBits()[Mips::FeatureGP64Bit]; }
-  bool isFP64bit() const { return STI.getFeatureBits()[Mips::FeatureFP64Bit]; }
+  bool isGP64bit() const {
+    return getSTI().getFeatureBits()[Mips::FeatureGP64Bit];
+  }
+  bool isFP64bit() const {
+    return getSTI().getFeatureBits()[Mips::FeatureFP64Bit];
+  }
   const MipsABIInfo &getABI() const { return ABI; }
   bool isABI_N32() const { return ABI.IsN32(); }
   bool isABI_N64() const { return ABI.IsN64(); }
   bool isABI_O32() const { return ABI.IsO32(); }
-  bool isABI_FPXX() const { return STI.getFeatureBits()[Mips::FeatureFPXX]; }
+  bool isABI_FPXX() const {
+    return getSTI().getFeatureBits()[Mips::FeatureFPXX];
+  }
 
   bool useOddSPReg() const {
-    return !(STI.getFeatureBits()[Mips::FeatureNoOddSPReg]);
+    return !(getSTI().getFeatureBits()[Mips::FeatureNoOddSPReg]);
   }
 
   bool inMicroMipsMode() const {
-    return STI.getFeatureBits()[Mips::FeatureMicroMips];
+    return getSTI().getFeatureBits()[Mips::FeatureMicroMips];
+  }
+  bool hasMips1() const {
+    return getSTI().getFeatureBits()[Mips::FeatureMips1];
+  }
+  bool hasMips2() const {
+    return getSTI().getFeatureBits()[Mips::FeatureMips2];
+  }
+  bool hasMips3() const {
+    return getSTI().getFeatureBits()[Mips::FeatureMips3];
+  }
+  bool hasMips4() const {
+    return getSTI().getFeatureBits()[Mips::FeatureMips4];
+  }
+  bool hasMips5() const {
+    return getSTI().getFeatureBits()[Mips::FeatureMips5];
   }
-  bool hasMips1() const { return STI.getFeatureBits()[Mips::FeatureMips1]; }
-  bool hasMips2() const { return STI.getFeatureBits()[Mips::FeatureMips2]; }
-  bool hasMips3() const { return STI.getFeatureBits()[Mips::FeatureMips3]; }
-  bool hasMips4() const { return STI.getFeatureBits()[Mips::FeatureMips4]; }
-  bool hasMips5() const { return STI.getFeatureBits()[Mips::FeatureMips5]; }
   bool hasMips32() const {
-    return STI.getFeatureBits()[Mips::FeatureMips32];
+    return getSTI().getFeatureBits()[Mips::FeatureMips32];
   }
   bool hasMips64() const {
-    return STI.getFeatureBits()[Mips::FeatureMips64];
+    return getSTI().getFeatureBits()[Mips::FeatureMips64];
   }
   bool hasMips32r2() const {
-    return STI.getFeatureBits()[Mips::FeatureMips32r2];
+    return getSTI().getFeatureBits()[Mips::FeatureMips32r2];
   }
   bool hasMips64r2() const {
-    return STI.getFeatureBits()[Mips::FeatureMips64r2];
+    return getSTI().getFeatureBits()[Mips::FeatureMips64r2];
   }
   bool hasMips32r3() const {
-    return (STI.getFeatureBits()[Mips::FeatureMips32r3]);
+    return (getSTI().getFeatureBits()[Mips::FeatureMips32r3]);
   }
   bool hasMips64r3() const {
-    return (STI.getFeatureBits()[Mips::FeatureMips64r3]);
+    return (getSTI().getFeatureBits()[Mips::FeatureMips64r3]);
   }
   bool hasMips32r5() const {
-    return (STI.getFeatureBits()[Mips::FeatureMips32r5]);
+    return (getSTI().getFeatureBits()[Mips::FeatureMips32r5]);
   }
   bool hasMips64r5() const {
-    return (STI.getFeatureBits()[Mips::FeatureMips64r5]);
+    return (getSTI().getFeatureBits()[Mips::FeatureMips64r5]);
   }
   bool hasMips32r6() const {
-    return STI.getFeatureBits()[Mips::FeatureMips32r6];
+    return getSTI().getFeatureBits()[Mips::FeatureMips32r6];
   }
   bool hasMips64r6() const {
-    return STI.getFeatureBits()[Mips::FeatureMips64r6];
+    return getSTI().getFeatureBits()[Mips::FeatureMips64r6];
   }
 
-  bool hasDSP() const { return STI.getFeatureBits()[Mips::FeatureDSP]; }
-  bool hasDSPR2() const { return STI.getFeatureBits()[Mips::FeatureDSPR2]; }
-  bool hasDSPR3() const { return STI.getFeatureBits()[Mips::FeatureDSPR3]; }
-  bool hasMSA() const { return STI.getFeatureBits()[Mips::FeatureMSA]; }
+  bool hasDSP() const {
+    return getSTI().getFeatureBits()[Mips::FeatureDSP];
+  }
+  bool hasDSPR2() const {
+    return getSTI().getFeatureBits()[Mips::FeatureDSPR2];
+  }
+  bool hasDSPR3() const {
+    return getSTI().getFeatureBits()[Mips::FeatureDSPR3];
+  }
+  bool hasMSA() const {
+    return getSTI().getFeatureBits()[Mips::FeatureMSA];
+  }
   bool hasCnMips() const {
-    return (STI.getFeatureBits()[Mips::FeatureCnMips]);
+    return (getSTI().getFeatureBits()[Mips::FeatureCnMips]);
   }
 
   bool inPicMode() {
@@ -497,15 +520,15 @@ public:
   }
 
   bool inMips16Mode() const {
-    return STI.getFeatureBits()[Mips::FeatureMips16];
+    return getSTI().getFeatureBits()[Mips::FeatureMips16];
   }
 
   bool useTraps() const {
-    return STI.getFeatureBits()[Mips::FeatureUseTCCInDIV];
+    return getSTI().getFeatureBits()[Mips::FeatureUseTCCInDIV];
   }
 
   bool useSoftFloat() const {
-    return STI.getFeatureBits()[Mips::FeatureSoftFloat];
+    return getSTI().getFeatureBits()[Mips::FeatureSoftFloat];
   }
 
   /// Warn if RegIndex is the same as the current AT.
@@ -3289,7 +3312,7 @@ bool MipsAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
     if (processInstruction(Inst, IDLoc, Instructions))
       return true;
     for (unsigned i = 0; i < Instructions.size(); i++)
-      Out.EmitInstruction(Instructions[i], STI);
+      Out.EmitInstruction(Instructions[i], getSTI());
     return false;
   }
   case Match_MissingFeature: