Subzero: Align the stack at the point of function calls.

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 167 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));
+  }
   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));
   }
   void _blendvps(Variable *Dest, Operand *Src0, Operand *Src1) {
@@ skipping 204 matching lines @@
   }
   void _shufps(Variable *Dest, Operand *Src0, Operand *Src1) {
     Context.insert(InstX8632Shufps::create(Func, Dest, Src0, Src1));
   }
   void _sqrtss(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Sqrtss::create(Func, Dest, Src0));
   }
   void _store(Operand *Value, OperandX8632 *Mem) {
     Context.insert(InstX8632Store::create(Func, Value, Mem));
   }
+  void _storep(Operand *Value, OperandX8632 *Mem) {
+    Context.insert(InstX8632StoreP::create(Func, Value, Mem));
+  }
   void _storeq(Operand *Value, OperandX8632 *Mem) {
     Context.insert(InstX8632StoreQ::create(Func, Value, Mem));
   }
   void _sub(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Sub::create(Func, Dest, Src0));
   }
   void _subps(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Subps::create(Func, Dest, Src0));
   }
   void _subss(Variable *Dest, Operand *Src0) {
@@ skipping 18 matching lines @@
     // The xchg modifies Dest and Src -- model that update with a FakeDef.
     Context.insert(
         InstFakeDef::create(Func, Src, llvm::dyn_cast<Variable>(Dest)));
   }
   void _xor(Variable *Dest, Operand *Src0) {
     Context.insert(InstX8632Xor::create(Func, Dest, Src0));
   }
 
   const X86InstructionSet InstructionSet;
   bool IsEbpBasedFrame;
+  bool NeedsStackAlignment;
   size_t FrameSizeLocals;
   size_t LocalsSizeBytes;
   llvm::SmallBitVector TypeToRegisterSet[IceType_NUM];
   llvm::SmallBitVector ScratchRegs;
   llvm::SmallBitVector RegsUsed;
   SizeT NextLabelNumber;
   bool ComputedLiveRanges;
   VarList PhysicalRegisters;
   static IceString RegNames[];
 
@@ skipping 23 matching lines @@
   virtual ~TargetGlobalInitX8632() {}
 };
 
 template <> void ConstantInteger::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