Subzero: Assemble calls to constant addresses.

src/assembler_ia32.cpp

 //===- subzero/src/assembler_ia32.cpp - Assembler for x86-32  -------------===//
 // 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.
 //
 //===----------------------------------------------------------------------===//
 //
 //                        The Subzero Code Generator
@@ skipping 94 matching lines @@
 void AssemblerX86::call(const ConstantRelocatable *label) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   intptr_t call_start = buffer_.GetPosition();
   EmitUint8(0xE8);
   EmitFixup(this->createFixup(llvm::ELF::R_386_PC32, label));
   EmitInt32(-4);
   assert((buffer_.GetPosition() - call_start) == kCallExternalLabelSize);
   (void)call_start;
 }
 
+void AssemblerX86::call(const Immediate &abs_address) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  intptr_t call_start = buffer_.GetPosition();
+  EmitUint8(0xE8);
+  EmitFixup(
+      this->createFixup(llvm::ELF::R_386_PC32, AssemblerFixup::NullSymbol));
+  EmitInt32(abs_address.value() - 4);
+  assert((buffer_.GetPosition() - call_start) == kCallExternalLabelSize);
+  (void)call_start;
+}
+
 void AssemblerX86::pushl(GPRRegister reg) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x50 + reg);
 }
 
 void AssemblerX86::popl(GPRRegister reg) {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0x58 + reg);
 }
 
@@ skipping 2389 matching lines @@
   assert(shifter == RegX8632::Encoded_Reg_ecx);
   (void)shifter;
   if (Ty == IceType_i16)
     EmitOperandSizeOverride();
   EmitUint8(isByteSizedArithType(Ty) ? 0xD2 : 0xD3);
   EmitOperand(rm, operand);
 }
 
 } // end of namespace x86
 } // end of namespace Ice