Add scalar lowering for sqrt intrinsic.

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 253 matching lines @@
     return false;
   if (getDest()->hasReg() && getDest()->getRegNum() == Src->getRegNum()) {
     return true;
   }
   if (!getDest()->hasReg() && !Src->hasReg() &&
       Dest->getStackOffset() == Src->getStackOffset())
     return true;
   return false;
 }
 
+InstX8632Sqrtss::InstX8632Sqrtss(Cfg *Func, Variable *Dest, Operand *Source)
+    : InstX8632(Func, InstX8632::Sqrtss, 1, Dest) {
+  addSource(Source);
+}
+
 InstX8632Ret::InstX8632Ret(Cfg *Func, Variable *Source)
     : InstX8632(Func, InstX8632::Ret, Source ? 1 : 0, NULL) {
   if (Source)
     addSource(Source);
 }
 
 InstX8632Xadd::InstX8632Xadd(Cfg *Func, Operand *Dest, Variable *Source,
                              bool Locked)
     : InstX8632(Func, InstX8632::Xadd, 2, llvm::dyn_cast<Variable>(Dest)),
       Locked(Locked) {
@@ skipping 628 matching lines @@
   Str << "\tret\n";
 }
 
 void InstX8632Ret::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
   Type Ty = (getSrcSize() == 0 ? IceType_void : getSrc(0)->getType());
   Str << "ret." << Ty << " ";
   dumpSources(Func);
 }
 
+void InstX8632Sqrtss::emit(const Cfg *Func) const {
+  Ostream &Str = Func->getContext()->getStrEmit();
+  assert(getSrcSize() == 1);
+  Type Ty = getSrc(0)->getType();
+  assert(Ty == IceType_f32 || Ty == IceType_f64);
+  Str << "\tsqrt" << TypeX8632Attributes[Ty].SdSsString << "\t";
+  getDest()->emit(Func);
+  Str << ", ";
+  getSrc(0)->emit(Func);
+  Str << "\n";
+}
+
+void InstX8632Sqrtss::dump(const Cfg *Func) const {
+  Ostream &Str = Func->getContext()->getStrDump();
+  dumpDest(Func);
+  Str << " = sqrt." << getDest()->getType() << " ";
+  dumpSources(Func);
+}
+
 void InstX8632Xadd::emit(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrEmit();
   if (Locked) {
     Str << "\tlock xadd ";
   } else {
     Str << "\txadd\t";
   }
   getSrc(0)->emit(Func);
   Str << ", ";
   getSrc(1)->emit(Func);
@@ skipping 136 matching lines @@
   default:
     Str << "???";
     break;
   }
   Str << "(";
   Var->dump(Func);
   Str << ")";
 }
 
 } // end of namespace Ice