Subzero: Refactor tracking of Defs and block-local Variables.

src/IceTargetLoweringX8632.h

 //===- subzero/src/IceTargetLoweringX8632.h - x86-32 lowering ---*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the TargetLoweringX8632 class, which
@@ skipping 34 matching lines @@
   virtual size_t typeWidthInBytesOnStack(Type Ty) const {
     // Round up to the next multiple of 4 bytes.  In particular, i1,
     // i8, and i16 are rounded up to 4 bytes.
     return (typeWidthInBytes(Ty) + 3) & ~3;
   }
   virtual SizeT getBundleAlignLog2Bytes() const { return 5; }
   virtual llvm::ArrayRef<uint8_t> getNonExecBundlePadding() const {
     static const uint8_t Padding[] = { 0xF4 };
     return llvm::ArrayRef<uint8_t>(Padding, 1);
   }
-  virtual void emitVariable(const Variable *Var, const Cfg *Func) const;
+  virtual void emitVariable(const Variable *Var) const;
   virtual void lowerArguments();
   virtual void addProlog(CfgNode *Node);
   virtual void addEpilog(CfgNode *Node);
   virtual void emitConstants() const;
   SizeT makeNextLabelNumber() { return NextLabelNumber++; }
   // Ensure that a 64-bit Variable has been split into 2 32-bit
   // Variables, creating them if necessary.  This is needed for all
   // I64 operations, and it is needed for pushing F64 arguments for
   // function calls using the 32-bit push instruction (though the
   // latter could be done by directly writing to the stack).
@@ skipping 117 matching lines @@
   // The following are helpers that insert lowered x86 instructions
   // with minimal syntactic overhead, so that the lowering code can
   // look as close to assembly as practical.
   void _adc(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Adc::create(Func, Dest, Src0));
   }
   void _add(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Add::create(Func, Dest, Src0));
   }
   void _adjust_stack(int32_t Amount) {
-    Context.insert(InstX8632AdjustStack::create(Func, Amount));
+    Context.insert(InstX8632AdjustStack::create(
+        Func, Amount, getPhysicalRegister(RegX8632::Reg_esp)));
   }
   void _addps(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Addps::create(Func, Dest, Src0));
   }
   void _addss(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Addss::create(Func, Dest, Src0));
   }
   void _and(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632And::create(Func, Dest, Src0));
   }
@@ skipping 298 matching lines @@
 };
 
 template <> void ConstantInteger32::emit(GlobalContext *Ctx) const;
 template <> void ConstantInteger64::emit(GlobalContext *Ctx) const;
 template <> void ConstantFloat::emit(GlobalContext *Ctx) const;
 template <> void ConstantDouble::emit(GlobalContext *Ctx) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H