Move support/lib into lib/Support

Move support/tools into utils


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8878 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 217 deletions

diff --git a/support/tools/TableGen/CodeEmitterGen.cpp b/support/tools/TableGen/CodeEmitterGen.cpp
deleted file mode 100644
index 98976c7336..0000000000
--- a/support/tools/TableGen/CodeEmitterGen.cpp
+++ /dev/null
@@ -1,217 +0,0 @@
-//===- CodeEmitterGen.cpp - Code Emitter Generator ------------------------===//
-//
-// FIXME: Document.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CodeEmitterGen.h"
-#include "Record.h"
-#include "Support/Debug.h"
-
-void CodeEmitterGen::run(std::ostream &o) {
-  std::vector<Record*> Insts = Records.getAllDerivedDefinitions("Instruction");
-
-  EmitSourceFileHeader("Machine Code Emitter", o);
-
-  std::string Namespace = "V9::";
-  std::string ClassName = "SparcV9CodeEmitter::";
-
-  //const std::string &Namespace = Inst->getValue("Namespace")->getName();
-  o << "unsigned " << ClassName
-    << "getBinaryCodeForInstr(MachineInstr &MI) {\n"
-    << "  unsigned Value = 0;\n"
-    << "  DEBUG(std::cerr << MI);\n"
-    << "  switch (MI.getOpcode()) {\n";
-  for (std::vector<Record*>::iterator I = Insts.begin(), E = Insts.end();
-       I != E; ++I) {
-    Record *R = *I;
-    o << "    case " << Namespace << R->getName() << ": {\n"
-      << "      DEBUG(std::cerr << \"Emitting " << R->getName() << "\\n\");\n";
-
-    BitsInit *BI = R->getValueAsBitsInit("Inst");
-
-    unsigned Value = 0;
-    const std::vector<RecordVal> &Vals = R->getValues();
-
-    DEBUG(o << "      // prefilling: ");
-    // Start by filling in fixed values...
-    for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i) {
-      if (BitInit *B = dynamic_cast<BitInit*>(BI->getBit(e-i-1))) {
-        Value |= B->getValue() << (e-i-1);
-        DEBUG(o << B->getValue());
-      } else {
-        DEBUG(o << "0");
-      }
-    }
-    DEBUG(o << "\n");
-
-    DEBUG(o << "      // " << *R->getValue("Inst") << "\n");
-    o << "      Value = " << Value << "U;\n\n";
-    
-    // Loop over all of the fields in the instruction determining which are the
-    // operands to the instruction. 
-    //
-    unsigned op = 0;
-    std::map<std::string, unsigned> OpOrder;
-    std::map<std::string, bool> OpContinuous;
-    for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
-      if (!Vals[i].getPrefix() &&  !Vals[i].getValue()->isComplete()) {
-        // Is the operand continuous? If so, we can just mask and OR it in
-        // instead of doing it bit-by-bit, saving a lot in runtime cost.        
-        const BitsInit *InstInit = BI;
-        int beginBitInVar = -1, endBitInVar = -1;
-        int beginBitInInst = -1, endBitInInst = -1;
-        bool continuous = true;
-
-        for (int bit = InstInit->getNumBits()-1; bit >= 0; --bit) {
-          if (VarBitInit *VBI =
-              dynamic_cast<VarBitInit*>(InstInit->getBit(bit))) {
-            TypedInit *TI = VBI->getVariable();
-            if (VarInit *VI = dynamic_cast<VarInit*>(TI)) {
-              // only process the current variable
-              if (VI->getName() != Vals[i].getName())
-                continue;
-
-              if (beginBitInVar == -1)
-                beginBitInVar = VBI->getBitNum();
-
-              if (endBitInVar == -1)
-                endBitInVar = VBI->getBitNum();
-              else {
-                if (endBitInVar == (int)VBI->getBitNum() + 1)
-                  endBitInVar = VBI->getBitNum();
-                else {
-                  continuous = false;
-                  break;
-                }
-              }
-
-              if (beginBitInInst == -1)
-                beginBitInInst = bit;
-              if (endBitInInst == -1)
-                endBitInInst = bit;
-              else {
-                if (endBitInInst == bit + 1)
-                  endBitInInst = bit;
-                else {
-                  continuous = false;
-                  break;
-                }
-              }
-
-              // maintain same distance between bits in field and bits in
-              // instruction. if the relative distances stay the same
-              // throughout,
-              if (beginBitInVar - (int)VBI->getBitNum() !=
-                  beginBitInInst - bit) {
-                continuous = false;
-                break;
-              }
-            }
-          }
-        }
-
-        // If we have found no bit in "Inst" which comes from this field, then
-        // this is not an operand!!
-        if (beginBitInInst != -1) {
-          o << "      // op" << op << ": " << Vals[i].getName() << "\n"
-            << "      int64_t op" << op 
-            <<" = getMachineOpValue(MI, MI.getOperand("<<op<<"));\n";
-          //<< "   MachineOperand &op" << op <<" = MI.getOperand("<<op<<");\n";
-          OpOrder[Vals[i].getName()] = op++;
-          
-          DEBUG(o << "      // Var: begin = " << beginBitInVar 
-                  << ", end = " << endBitInVar
-                  << "; Inst: begin = " << beginBitInInst
-                  << ", end = " << endBitInInst << "\n");
-          
-          if (continuous) {
-            DEBUG(o << "      // continuous: op" << OpOrder[Vals[i].getName()]
-                    << "\n");
-            
-            // Mask off the right bits
-            // Low mask (ie. shift, if necessary)
-            assert(endBitInVar >= 0 && "Negative shift amount in masking!");
-            if (endBitInVar != 0) {
-              o << "      op" << OpOrder[Vals[i].getName()]
-                << " >>= " << endBitInVar << ";\n";
-              beginBitInVar -= endBitInVar;
-              endBitInVar = 0;
-            }
-            
-            // High mask
-            o << "      op" << OpOrder[Vals[i].getName()]
-              << " &= (1<<" << beginBitInVar+1 << ") - 1;\n";
-            
-            // Shift the value to the correct place (according to place in inst)
-            assert(endBitInInst >= 0 && "Negative shift amount in inst position!");
-            if (endBitInInst != 0)
-              o << "      op" << OpOrder[Vals[i].getName()]
-              << " <<= " << endBitInInst << ";\n";
-            
-            // Just OR in the result
-            o << "      Value |= op" << OpOrder[Vals[i].getName()] << ";\n";
-          }
-          
-          // otherwise, will be taken care of in the loop below using this
-          // value:
-          OpContinuous[Vals[i].getName()] = continuous;
-        }
-      }
-    }
-
-    for (unsigned f = 0, e = Vals.size(); f != e; ++f) {
-      if (Vals[f].getPrefix()) {
-        BitsInit *FieldInitializer = (BitsInit*)Vals[f].getValue();
-
-        // Scan through the field looking for bit initializers of the current
-        // variable...
-        for (int i = FieldInitializer->getNumBits()-1; i >= 0; --i) {
-          if (BitInit *BI = dynamic_cast<BitInit*>(FieldInitializer->getBit(i)))
-          {
-            DEBUG(o << "      // bit init: f: " << f << ", i: " << i << "\n");
-          } else if (UnsetInit *UI =
-                     dynamic_cast<UnsetInit*>(FieldInitializer->getBit(i))) {
-            DEBUG(o << "      // unset init: f: " << f << ", i: " << i << "\n");
-          } else if (VarBitInit *VBI =
-                     dynamic_cast<VarBitInit*>(FieldInitializer->getBit(i))) {
-            TypedInit *TI = VBI->getVariable();
-            if (VarInit *VI = dynamic_cast<VarInit*>(TI)) {
-              // If the bits of the field are laid out consecutively in the
-              // instruction, then instead of separately ORing in bits, just
-              // mask and shift the entire field for efficiency.
-              if (OpContinuous[VI->getName()]) {
-                // already taken care of in the loop above, thus there is no
-                // need to individually OR in the bits
-
-                // for debugging, output the regular version anyway, commented
-                DEBUG(o << "      // Value |= getValueBit(op"
-                        << OpOrder[VI->getName()] << ", " << VBI->getBitNum()
-                        << ")" << " << " << i << ";\n");
-              } else {
-                o << "      Value |= getValueBit(op" << OpOrder[VI->getName()]
-                  << ", " << VBI->getBitNum()
-                  << ")" << " << " << i << ";\n";
-              }
-            } else if (FieldInit *FI = dynamic_cast<FieldInit*>(TI)) {
-              // FIXME: implement this!
-              o << "FIELD INIT not implemented yet!\n";
-            } else {
-              o << "Error: UNIMPLEMENTED\n";
-            }
-          }
-        }
-      }
-    }
-
-    o << "      break;\n"
-      << "    }\n";
-  }
-
-  o << "  default:\n"
-    << "    std::cerr << \"Not supported instr: \" << MI << \"\\n\";\n"
-    << "    abort();\n"
-    << "  }\n"
-    << "  return Value;\n"
-    << "}\n";
-}