Add support for vector types and vector constants.

src/IceInstX8632.cpp

 //===- subzero/src/IceInstX8632.cpp - X86-32 instruction implementation ---===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the InstX8632 and OperandX8632 classes,
@@ skipping 164 matching lines @@
     : InstX8632(Func, InstX8632::Store, 2, NULL) {
   addSource(Value);
   addSource(Mem);
 }
 
 InstX8632Mov::InstX8632Mov(Cfg *Func, Variable *Dest, Operand *Source)
     : InstX8632(Func, InstX8632::Mov, 1, Dest) {
   addSource(Source);
 }
 
+InstX8632Movp::InstX8632Movp(Cfg *Func, Variable *Dest, Operand *Source)
+    : InstX8632(Func, InstX8632::Movp, 1, Dest) {
+  addSource(Source);
+}
+
 InstX8632StoreQ::InstX8632StoreQ(Cfg *Func, Operand *Value, OperandX8632 *Mem)
     : InstX8632(Func, InstX8632::StoreQ, 2, NULL) {
   addSource(Value);
   addSource(Mem);
 }
 
 InstX8632Movq::InstX8632Movq(Cfg *Func, Variable *Dest, Operand *Source)
     : InstX8632(Func, InstX8632::Movq, 1, Dest) {
   addSource(Source);
 }
@@ skipping 20 matching lines @@
     : InstX8632(Func, InstX8632::Pop, 0, Dest) {}
 
 InstX8632Push::InstX8632Push(Cfg *Func, Operand *Source,
                              bool SuppressStackAdjustment)
     : InstX8632(Func, InstX8632::Push, 1, NULL),
       SuppressStackAdjustment(SuppressStackAdjustment) {
   addSource(Source);
 }
 
 bool InstX8632Mov::isRedundantAssign() const {
+  // TODO: The isRedundantAssign() implementations for InstX8632Mov,

[Jim Stichnoth, 2014/06/27 23:11:05]

TODO(stichnot)

+  // InstX8632Movp, and InstX8632Movq are identical. Consolidate them.
   Variable *Src = llvm::dyn_cast<Variable>(getSrc(0));
   if (Src == NULL)
     return false;
   if (getDest()->hasReg() && getDest()->getRegNum() == Src->getRegNum()) {
     // TODO: On x86-64, instructions like "mov eax, eax" are used to
     // clear the upper 32 bits of rax.  We need to recognize and
     // preserve these.
     return true;
   }
   if (!getDest()->hasReg() && !Src->hasReg() &&
       Dest->getStackOffset() == Src->getStackOffset())
     return true;
   return false;
 }
 
+bool InstX8632Movp::isRedundantAssign() const {
+  Variable *Src = llvm::dyn_cast<Variable>(getSrc(0));
+  if (Src == NULL)
+    return false;
+  if (getDest()->hasReg() && getDest()->getRegNum() == Src->getRegNum()) {
+    return true;
+  }
+  if (!getDest()->hasReg() && !Src->hasReg() &&
+      Dest->getStackOffset() == Src->getStackOffset())
+    return true;
+  return false;
+}
+
 bool InstX8632Movq::isRedundantAssign() const {
   Variable *Src = llvm::dyn_cast<Variable>(getSrc(0));
   if (Src == NULL)
     return false;
   if (getDest()->hasReg() && getDest()->getRegNum() == Src->getRegNum()) {
     return true;
   }
   if (!getDest()->hasReg() && !Src->hasReg() &&
       Dest->getStackOffset() == Src->getStackOffset())
     return true;
@@ skipping 423 matching lines @@
 }
 
 void InstX8632Mov::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "mov." << getDest()->getType() << " ";
   dumpDest(Func);
   Str << ", ";
   dumpSources(Func);
 }
 
+void InstX8632Movp::emit(const Cfg *Func) const {
+  // TODO(wala,stichnot): movups works with all vector operands, but
+  // there exist other instructions (movaps, movdqa, movdqu) that may
+  // perform better, depending on the data type and alignment of the
+  // operands.
+  Ostream &Str = Func->getContext()->getStrEmit();
+  assert(getSrcSize() == 1);
+  Str << "\tmovups\t";
+  getDest()->emit(Func);
+  Str << ", ";
+  getSrc(0)->emit(Func);
+  Str << "\n";
+}
+
 void InstX8632Movq::emit(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrEmit();
   assert(getSrcSize() == 1);
   assert(getDest()->getType() == IceType_i64 ||
          getDest()->getType() == IceType_f64);
   Str << "\tmovq\t";
   getDest()->emit(Func);
   Str << ", ";
   getSrc(0)->emit(Func);
   Str << "\n";
 }
 
+void InstX8632Movp::dump(const Cfg *Func) const {
+  Ostream &Str = Func->getContext()->getStrDump();
+  Str << "movups." << getDest()->getType() << " ";
+  dumpDest(Func);
+  Str << ", ";
+  dumpSources(Func);
+}
+
 void InstX8632Movq::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
   Str << "movq." << getDest()->getType() << " ";
   dumpDest(Func);
   Str << ", ";
   dumpSources(Func);
 }
 
 void InstX8632Movsx::emit(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrEmit();
@@ skipping 306 matching lines @@
   default:
     Str << "???";
     break;
   }
   Str << "(";
   Var->dump(Func);
   Str << ")";
 }
 
 } // end of namespace Ice