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OMRSnippet.cpp
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OMRSnippet.cpp
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/*******************************************************************************
* Copyright (c) 2000, 2019 IBM Corp. and others
*
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which accompanies this
* distribution and is available at http://eclipse.org/legal/epl-2.0
* or the Apache License, Version 2.0 which accompanies this distribution
* and is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License, v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception [1] and GNU General Public
* License, version 2 with the OpenJDK Assembly Exception [2].
*
* [1] https://www.gnu.org/software/classpath/license.html
* [2] http://openjdk.java.net/legal/assembly-exception.html
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 OR LicenseRef-GPL-2.0 WITH Assembly-exception
*******************************************************************************/
#include "codegen/Snippet.hpp"
#include <stddef.h>
#include <stdint.h>
#include "codegen/CodeGenerator.hpp"
#include "codegen/ConstantDataSnippet.hpp"
#include "infra/Assert.hpp"
#include "ras/Debug.hpp"
#include "x/codegen/DataSnippet.hpp"
#include "x/codegen/HelperCallSnippet.hpp"
#include "x/codegen/RestartSnippet.hpp"
#include "codegen/InstOpCode.hpp"
#include "codegen/UnresolvedDataSnippet.hpp"
namespace TR { class X86BoundCheckWithSpineCheckSnippet; }
namespace TR { class X86CallSnippet; }
namespace TR { class X86CheckFailureSnippet; }
namespace TR { class X86CheckFailureSnippetWithResolve; }
namespace TR { class X86DivideCheckSnippet; }
namespace TR { class X86FPConvertToIntSnippet; }
namespace TR { class X86FPConvertToLongSnippet; }
namespace TR { class X86ForceRecompilationSnippet; }
namespace TR { class X86GuardedDevirtualSnippet; }
namespace TR { class X86PicDataSnippet; }
namespace TR { class X86RecompilationSnippet; }
namespace TR { class X86SpineCheckSnippet; }
namespace TR { class LabelSymbol; }
namespace TR { class Node; }
OMR::X86::Snippet::Snippet(
TR::CodeGenerator *cg,
TR::Node *node,
TR::LabelSymbol *label,
bool isGCSafePoint) :
OMR::Snippet(cg, node, label, isGCSafePoint)
{
}
OMR::X86::Snippet::Snippet(
TR::CodeGenerator *cg,
TR::Node *node,
TR::LabelSymbol *label) :
OMR::Snippet(cg, node, label)
{
}
const char *
TR_Debug::getNamex(TR::Snippet *snippet)
{
switch (snippet->getKind())
{
#ifdef J9_PROJECT_SPECIFIC
case TR::Snippet::IsCall:
return "Call Snippet";
break;
case TR::Snippet::IsVPicData:
return "VPic Data";
break;
case TR::Snippet::IsIPicData:
return "IPic Data";
break;
case TR::Snippet::IsForceRecompilation:
return "Force Recompilation Snippet";
break;
case TR::Snippet::IsRecompilation:
return "Recompilation Snippet";
break;
#endif
case TR::Snippet::IsCheckFailure:
return "Check Failure Snippet";
break;
case TR::Snippet::IsCheckFailureWithResolve:
return "Check Failure Snippet with Resolve Call";
break;
case TR::Snippet::IsBoundCheckWithSpineCheck:
return "Bound Check with Spine Check Snippet";
break;
case TR::Snippet::IsSpineCheck:
return "Spine Check Snippet";
break;
case TR::Snippet::IsConstantData:
return "Constant Data Snippet";
break;
case TR::Snippet::IsData:
return "Data Snippet";
case TR::Snippet::IsDivideCheck:
return "Divide Check Snippet";
break;
#ifdef J9_PROJECT_SPECIFIC
case TR::Snippet::IsGuardedDevirtual:
return "Guarded Devirtual Snippet";
break;
#endif
case TR::Snippet::IsHelperCall:
return "Helper Call Snippet";
break;
case TR::Snippet::IsFPConversion:
return "FP Conversion Snippet";
break;
case TR::Snippet::IsFPConvertToInt:
return "FP Convert To Int Snippet";
break;
case TR::Snippet::IsFPConvertToLong:
return "FP Convert To Long Snippet";
break;
case TR::Snippet::IsUnresolvedDataIA32:
case TR::Snippet::IsUnresolvedDataAMD64:
return "Unresolved Data Snippet";
break;
case TR::Snippet::IsRestart:
default:
TR_ASSERT(0, "unexpected snippet kind: %d", snippet->getKind());
return "Unknown snippet kind";
}
}
void
TR_Debug::printx(TR::FILE *pOutFile, TR::Snippet *snippet)
{
// TODO:AMD64: Clean up these #ifdefs
if (pOutFile == NULL)
return;
switch (snippet->getKind())
{
#ifdef J9_PROJECT_SPECIFIC
case TR::Snippet::IsCall:
print(pOutFile, (TR::X86CallSnippet *)snippet);
break;
case TR::Snippet::IsIPicData:
case TR::Snippet::IsVPicData:
print(pOutFile, (TR::X86PicDataSnippet *)snippet);
break;
case TR::Snippet::IsCheckFailure:
print(pOutFile, (TR::X86CheckFailureSnippet *)snippet);
break;
case TR::Snippet::IsCheckFailureWithResolve:
print(pOutFile, (TR::X86CheckFailureSnippetWithResolve *)snippet);
break;
case TR::Snippet::IsBoundCheckWithSpineCheck:
print(pOutFile, (TR::X86BoundCheckWithSpineCheckSnippet *)snippet);
break;
case TR::Snippet::IsSpineCheck:
print(pOutFile, (TR::X86SpineCheckSnippet *)snippet);
break;
case TR::Snippet::IsForceRecompilation:
print(pOutFile, (TR::X86ForceRecompilationSnippet *)snippet);
break;
case TR::Snippet::IsRecompilation:
print(pOutFile, (TR::X86RecompilationSnippet *)snippet);
break;
#endif
case TR::Snippet::IsDivideCheck:
print(pOutFile, (TR::X86DivideCheckSnippet *)snippet);
break;
#ifdef J9_PROJECT_SPECIFIC
case TR::Snippet::IsGuardedDevirtual:
print(pOutFile, (TR::X86GuardedDevirtualSnippet *)snippet);
break;
#endif
case TR::Snippet::IsHelperCall:
print(pOutFile, (TR::X86HelperCallSnippet *)snippet);
break;
case TR::Snippet::IsFPConvertToInt:
print(pOutFile, (TR::X86FPConvertToIntSnippet *)snippet);
break;
case TR::Snippet::IsFPConvertToLong:
print(pOutFile, (TR::X86FPConvertToLongSnippet *)snippet);
break;
case TR::Snippet::IsUnresolvedDataIA32:
print(pOutFile, (TR::UnresolvedDataSnippet *)snippet);
break;
#ifdef TR_TARGET_64BIT
case TR::Snippet::IsUnresolvedDataAMD64:
print(pOutFile, (TR::UnresolvedDataSnippet *)snippet);
break;
#endif
case TR::Snippet::IsRestart:
TR_ASSERT(0, "unexpected snippet kind: %d", snippet->getKind());
break;
default:
snippet->print(pOutFile, this);
break;
}
}
int32_t
TR_Debug::printRestartJump(TR::FILE *pOutFile, TR::X86RestartSnippet * snippet, uint8_t *bufferPos)
{
int32_t size = snippet->estimateRestartJumpLength(JMP4, static_cast<int32_t>(bufferPos - (uint8_t*)snippet->cg()->getBinaryBufferStart()));
printPrefix(pOutFile, NULL, bufferPos, size);
printLabelInstruction(pOutFile, "jmp", snippet->getRestartLabel());
return size;
}
int32_t
TR_Debug::printRestartJump(TR::FILE *pOutFile, TR::X86RestartSnippet * snippet, uint8_t *bufferPos, int32_t branchOp, const char *branchOpName)
{
int32_t size = snippet->estimateRestartJumpLength((TR::InstOpCode::Mnemonic) branchOp, static_cast<int32_t>(bufferPos - (uint8_t*)snippet->cg()->getBinaryBufferStart()));
printPrefix(pOutFile, NULL, bufferPos, size);
printLabelInstruction(pOutFile, branchOpName, snippet->getRestartLabel());
return size;
}