Subzero: Use cvttss2si and similar instead of cvtss2si for fp->int casts.

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 @@
   assert(Eax->getRegNum() == TargetX8632::Reg_eax);
   assert(Ecx->getRegNum() == TargetX8632::Reg_ecx);
   assert(Ebx->getRegNum() == TargetX8632::Reg_ebx);
   addSource(Addr);
   addSource(Edx);
   addSource(Eax);
   addSource(Ecx);
   addSource(Ebx);
 }
 
-InstX8632Cvt::InstX8632Cvt(Cfg *Func, Variable *Dest, Operand *Source)
-    : InstX8632(Func, InstX8632::Cvt, 1, Dest) {
+InstX8632Cvt::InstX8632Cvt(Cfg *Func, Variable *Dest, Operand *Source,
+                           bool Trunc)
+    : InstX8632(Func, InstX8632::Cvt, 1, Dest), Trunc(Trunc) {
   addSource(Source);
 }
 
 InstX8632Icmp::InstX8632Icmp(Cfg *Func, Operand *Src0, Operand *Src1)
     : InstX8632(Func, InstX8632::Icmp, 2, NULL) {
   addSource(Src0);
   addSource(Src1);
 }
 
 InstX8632Ucomiss::InstX8632Ucomiss(Cfg *Func, Operand *Src0, Operand *Src1)
@@ skipping 594 matching lines @@
   if (Locked) {
     Str << "lock ";
   }
   Str << "cmpxchg8b ";
   dumpSources(Func);
 }
 
 void InstX8632Cvt::emit(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrEmit();
   assert(getSrcSize() == 1);
-  Str << "\tcvt" << TypeX8632Attributes[getSrc(0)->getType()].CvtString << "2"
+  Str << "\tcvt";
+  if (Trunc)
+    Str << "t";
+  Str << TypeX8632Attributes[getSrc(0)->getType()].CvtString << "2"
       << TypeX8632Attributes[getDest()->getType()].CvtString << "\t";
   getDest()->emit(Func);
   Str << ", ";
   getSrc(0)->emit(Func);
   Str << "\n";
 }
 
 void InstX8632Cvt::dump(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrDump();
   dumpDest(Func);
-  Str << " = cvt" << TypeX8632Attributes[getSrc(0)->getType()].CvtString
-      << "2" << TypeX8632Attributes[getDest()->getType()].CvtString << " ";
+  Str << " = cvt";
+  if (Trunc)
+    Str << "t";
+  Str << TypeX8632Attributes[getSrc(0)->getType()].CvtString << "2"
+      << TypeX8632Attributes[getDest()->getType()].CvtString << " ";
   dumpSources(Func);
 }
 
 void InstX8632Icmp::emit(const Cfg *Func) const {
   Ostream &Str = Func->getContext()->getStrEmit();
   assert(getSrcSize() == 2);
   Str << "\tcmp\t";
   getSrc(0)->emit(Func);
   Str << ", ";
   getSrc(1)->emit(Func);
@@ skipping 649 matching lines @@
   default:
     Str << "???";
     break;
   }
   Str << "(";
   Var->dump(Func);
   Str << ")";
 }
 
 } // end of namespace Ice