Subzero: Allow builds with assertions disabled.

src/assembler_ia32.cpp

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 // Modified by the Subzero authors.
 //
 //===- subzero/src/assembler_ia32.cpp - Assembler for x86-32  -------------===//
 //
 //                        The Subzero Code Generator
 //
@@ skipping 73 matching lines @@
   EmitLabel(label, kSize);
 }
 
 void AssemblerX86::call(const ConstantRelocatable *label) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   intptr_t call_start = buffer_.GetPosition();
   EmitUint8(0xE8);
   EmitFixup(DirectCallRelocation::create(this, FK_PcRel_4, label));
   EmitInt32(-4);
   assert((buffer_.GetPosition() - call_start) == kCallExternalLabelSize);
+  (void)call_start;
 }
 
 void AssemblerX86::pushl(GPRRegister reg) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x50 + reg);
 }
 
 void AssemblerX86::pushl(const Address &address) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xFF);
@@ skipping 1638 matching lines @@
 
 void AssemblerX86::notl(GPRRegister reg) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xF7);
   EmitUint8(0xD0 | reg);
 }
 
 void AssemblerX86::bswap(Type Ty, GPRRegister reg) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   assert(Ty == IceType_i32);
+  (void)Ty;
   EmitUint8(0x0F);
   EmitUint8(0xC8 | reg);
 }
 
 void AssemblerX86::bsf(Type Ty, GPRRegister dst, GPRRegister src) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   assert(Ty == IceType_i16 || Ty == IceType_i32);
   if (Ty == IceType_i16)
     EmitOperandSizeOverride();
   EmitUint8(0x0F);
@@ skipping 376 matching lines @@
     EmitUint8(0xC1);
     EmitOperand(rm, Operand(reg));
     EmitUint8(imm.value() & 0xFF);
   }
 }
 
 void AssemblerX86::EmitGenericShift(int rm, const Operand &operand,
                                     GPRRegister shifter) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   assert(shifter == RegX8632::Encoded_Reg_ecx);
+  (void)shifter;
   EmitUint8(0xD3);
   EmitOperand(rm, Operand(operand));
 }
 
 } // end of namespace x86
 } // end of namespace Ice