Switching to AsmJit generated chasing routines.

1 files changed, 291 insertions, 0 deletions

diff --git a/lib/AsmJit/Compiler.cpp b/lib/AsmJit/Compiler.cpp
new file mode 100644
index 0000000..4f4c8bf
--- /dev/null
+++ b/lib/AsmJit/Compiler.cpp
@@ -0,0 +1,291 @@
+// AsmJit - Complete JIT Assembler for C++ Language.
+
+// Copyright (c) 2008-2010, Petr Kobalicek <kobalicek.petr@gmail.com>
+//
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+
+// We are using sprintf() here.
+#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
+#define _CRT_SECURE_NO_WARNINGS
+#endif // _MSC_VER
+
+// [Dependencies]
+#include "Assembler.h"
+#include "Compiler.h"
+#include "CpuInfo.h"
+#include "Logger.h"
+#include "Util.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// [Api-Begin]
+#include "ApiBegin.h"
+
+namespace AsmJit {
+
+// ============================================================================
+// [AsmJit::Emittable]
+// ============================================================================
+
+Emittable::Emittable(Compiler* c, uint32_t type) ASMJIT_NOTHROW :
+  _compiler(c),
+  _next(NULL),
+  _prev(NULL),
+  _comment(NULL),
+  _type((uint8_t)type),
+  _translated(false),
+  _reserved0(0),
+  _reserved1(0),
+  _offset(INVALID_VALUE)
+{
+}
+
+Emittable::~Emittable() ASMJIT_NOTHROW
+{
+}
+
+void Emittable::prepare(CompilerContext& cc) ASMJIT_NOTHROW
+{
+  _offset = cc._currentOffset;
+}
+
+Emittable* Emittable::translate(CompilerContext& cc) ASMJIT_NOTHROW
+{
+  return translated();
+}
+
+void Emittable::emit(Assembler& a) ASMJIT_NOTHROW
+{
+}
+
+void Emittable::post(Assembler& a) ASMJIT_NOTHROW
+{
+}
+
+int Emittable::getMaxSize() const ASMJIT_NOTHROW
+{
+  // Default maximum size is -1 which means that it's not known.
+  return -1;
+}
+
+bool Emittable::_tryUnuseVar(VarData* v) ASMJIT_NOTHROW
+{
+  return false;
+}
+
+void Emittable::setComment(const char* str) ASMJIT_NOTHROW
+{
+  _comment = _compiler->getZone().zstrdup(str);
+}
+
+void Emittable::setCommentF(const char* fmt, ...) ASMJIT_NOTHROW
+{
+  // I'm really not expecting larger inline comments:)
+  char buf[256];
+
+  va_list ap;
+  va_start(ap, fmt);
+  vsnprintf(buf, 255, fmt, ap);
+  va_end(ap);
+
+  // I don't know if vsnprintf can produce non-null terminated string, in case
+  // it can, we terminate it here.
+  buf[255] = '\0';
+
+  setComment(buf);
+}
+
+// ============================================================================
+// [AsmJit::EDummy]
+// ============================================================================
+
+EDummy::EDummy(Compiler* c) ASMJIT_NOTHROW :
+  Emittable(c, EMITTABLE_DUMMY)
+{
+}
+
+EDummy::~EDummy() ASMJIT_NOTHROW
+{
+}
+
+int EDummy::getMaxSize() const ASMJIT_NOTHROW
+{
+  return 0;
+}
+
+// ============================================================================
+// [AsmJit::EFunctionEnd]
+// ============================================================================
+
+EFunctionEnd::EFunctionEnd(Compiler* c) ASMJIT_NOTHROW :
+  EDummy(c)
+{
+  _type = EMITTABLE_FUNCTION_END;
+}
+
+EFunctionEnd::~EFunctionEnd() ASMJIT_NOTHROW
+{
+}
+
+Emittable* EFunctionEnd::translate(CompilerContext& cc) ASMJIT_NOTHROW
+{
+  _translated = true;
+  return NULL;
+}
+
+// ============================================================================
+// [AsmJit::EComment]
+// ============================================================================
+
+EComment::EComment(Compiler* c, const char* str) ASMJIT_NOTHROW :
+  Emittable(c, EMITTABLE_COMMENT)
+{
+  setComment(str);
+}
+
+EComment::~EComment() ASMJIT_NOTHROW
+{
+}
+
+void EComment::emit(Assembler& a) ASMJIT_NOTHROW
+{
+  if (a.getLogger())
+  {
+    a.getLogger()->logString(getComment());
+  }
+}
+
+int EComment::getMaxSize() const ASMJIT_NOTHROW
+{
+  return 0;
+}
+
+// ============================================================================
+// [AsmJit::EData]
+// ============================================================================
+
+EData::EData(Compiler* c, const void* data, sysuint_t length) ASMJIT_NOTHROW :
+  Emittable(c, EMITTABLE_EMBEDDED_DATA)
+{
+  _length = length;
+  memcpy(_data, data, length);
+}
+
+EData::~EData() ASMJIT_NOTHROW
+{
+}
+
+void EData::emit(Assembler& a) ASMJIT_NOTHROW
+{
+  a.embed(_data, _length);
+}
+
+int EData::getMaxSize() const ASMJIT_NOTHROW
+{
+  return (int)_length;;
+}
+
+// ============================================================================
+// [AsmJit::EAlign]
+// ============================================================================
+
+EAlign::EAlign(Compiler* c, uint32_t size) ASMJIT_NOTHROW :
+  Emittable(c, EMITTABLE_ALIGN), _size(size)
+{
+}
+
+EAlign::~EAlign() ASMJIT_NOTHROW
+{
+}
+
+void EAlign::emit(Assembler& a) ASMJIT_NOTHROW
+{
+  a.align(_size);
+}
+
+int EAlign::getMaxSize() const ASMJIT_NOTHROW
+{
+  return (_size > 0) ? (int)_size - 1 : 0;
+}
+
+// ============================================================================
+// [AsmJit::ETarget]
+// ============================================================================
+
+ETarget::ETarget(Compiler* c, const Label& label) ASMJIT_NOTHROW :
+  Emittable(c, EMITTABLE_TARGET),
+  _label(label),
+  _from(NULL),
+  _state(NULL),
+  _jumpsCount(0)
+{
+}
+
+ETarget::~ETarget() ASMJIT_NOTHROW
+{
+}
+
+void ETarget::prepare(CompilerContext& cc) ASMJIT_NOTHROW
+{
+  _offset = cc._currentOffset++;
+}
+
+Emittable* ETarget::translate(CompilerContext& cc) ASMJIT_NOTHROW
+{
+  // If this ETarget was already translated, it's needed to change the current
+  // state and return NULL to tell CompilerContext to process next untranslated
+  // emittable.
+  if (_translated)
+  {
+    cc._restoreState(_state);
+    return NULL;
+  }
+
+  if (cc._unrecheable)
+  {
+    cc._unrecheable = 0;
+
+    // Assign state to the compiler context. 
+    ASMJIT_ASSERT(_state != NULL);
+    cc._assignState(_state);
+  }
+  else
+  {
+    _state = cc._saveState();
+  }
+
+  return translated();
+}
+
+void ETarget::emit(Assembler& a) ASMJIT_NOTHROW
+{
+  a.bind(_label);
+}
+
+int ETarget::getMaxSize() const ASMJIT_NOTHROW
+{
+  return 0;
+}
+
+} // AsmJit namespace