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ARMDebug.cpp
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/*******************************************************************************
*
* (c) Copyright IBM Corp. 2000, 2016
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0 and
* Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* Contributors:
* Multiple authors (IBM Corp.) - initial implementation and documentation
*******************************************************************************/
#if !defined(TR_TARGET_ARM)
int jitDebugARM;
#else
#include "arm/codegen/ARMInstruction.hpp"
#include "arm/codegen/ARMDisassem.hpp"
#include "arm/codegen/ARMRecompilationSnippet.hpp"
#include "codegen/CodeGenerator.hpp"
#include "codegen/GCRegisterMap.hpp"
#include "codegen/Machine.hpp"
#include "codegen/Snippet.hpp"
#include "codegen/StackCheckFailureSnippet.hpp"
#include "compile/Compilation.hpp"
#include "control/Recompilation.hpp"
#include "env/IO.hpp"
#include "env/jittypes.h"
#include "il/Node.hpp"
#include "il/Node_inlines.hpp"
#ifdef J9_PROJECT_SPECIFIC
#include "trj9/arm/codegen/ARMHelperCallSnippet.hpp"
#endif
// change the following lines to not get the instruction addr during
// prints (useful for diff-ing output)
#define INSTR_OR_NULL instr
static const char *ARMConditionNames[] =
{
"eq",
"ne",
"cs",
"cc",
"mi",
"pl",
"vs",
"vc",
"hi",
"ls",
"ge",
"lt",
"gt",
"le",
"al",
"nv"
};
#if defined(__ARM_ARCH_7A__) && defined(__VFP_FP__) && !defined(__SOFTFP__)
static const char * opCodeToVFPMap[] =
{
".f64", // fabsd (vabs<c>.f64)
".f32", // fabss (vabs<c>.f32)
".f64", // faddd (vadd<c>.f64)
".f32", // fadds (vadd<c>.f32)
".f64", // fcmpd (vcmp<c>.f64)
".f32", // fcmps (vcmp<c>.f32)
".f64", // fcmpzd (vcmp<c>.f64)
".f32", // fcmpzs (vcmp<c>.f32)
".f64", // fcpyd (vmov<c>.f64)
".f32", // fcpys (vmov<c>.f32)
".f64.f32", // fcvtds (vcvt<c>.f64.f32)
".f32.f64", // fcvtsd (vcvt<c>.f32.f64)
".f64", // fdivd (vdiv<c>.f64)
".f32", // fdivs (vdiv<c>.f32)
"", // fldd (vldr)
"", // fldmd (vldm)
"", // fldms (vldm)
"", // flds (vldr)
".f64", // fmacd (vmla.f64)
".f32", // fmacs (vmla.f32)
"", // fmdrr (vmov)
"", // fmrrd (vmov)
"", // fmrrs (vmov)
"", // fmrs (vmov)
"", // fmrx (vmrs)
".f64", // fmscd (vmls.f64)
".f32", // fmscs (vmls.f32)
"", // fmsr (vmov)
"", // fmsrr (vmov)
"", // fmstat (vmrs APSR_nzcv, FPSCR)
".f64", // fmuld (vmul.f64)
".f32", // fmuls (vmul.f32)
"", // fmxr (vmsr)
".f64", // fnegd (vneg.f64)
".f32", // fnegs (vneg.f32)
".f64", // fnmacd (vnmla.f64)
".f32", // fnmacs (vnmla.f32)
".f64", // fnmscd (vnmls.f64)
".f32", // fnmscs (vnmls.f32)
".f64", // fnmuld (vnmul.f64)
".f32", // fnmuls (vnmul.f32)
".f64.s32", // fsitod (vcvt.f64.s32)
".f32.s32", // fsitos (vcvt.f32.s32)
".f64", // fsqrtd (vsqrt.f64)
".f32", // fsqrts (vsqrt.f32)
"", // fstd (vstr)
"", // fstmd (vstm)
"", // fstms (vstm)
"", // fsts (vstr)
".f64", // fsubd (vsub.f64)
".f32", // fsubs (vsub.f32)
".s32.f64", // ftosizd (vcvt.s32.f64)
".s32.f32", // ftosizs (vcvt.s32.f32)
".u32.f64", // ftouizd (vcvt.u32.f64)
".u32.f32", // ftouizs (vcvt.u32.f32)
".f64,u32", // fuitod (vcvt.f64,u32)
".f32.u32" // fuitos (vcvt.f32.u32)
};
#endif
static const char *
getExtraVFPInstrSpecifiers(TR_ARMOpCode *opCode)
{
#define FIRST_VFP_INSTR ARMOp_fabsd
#if defined(__ARM_ARCH_7A__) && defined(__VFP_FP__) && !defined(__SOFTFP__)
uint32_t index = (uint32_t)opCode->getOpCodeValue() - (uint32_t)(FIRST_VFP_INSTR);
return opCodeToVFPMap[index];
#else
return "";
#endif
#undef FIRST_VFP_INSTR
}
char *
TR_Debug::fullOpCodeName(TR::Instruction * instr)
{
static char nameBuf[64];
#if defined(__VFP_FP__) && !defined(__SOFTFP__)
sprintf(nameBuf,
"%s%s%s",
getOpCodeName(&instr->getOpCode()),
(instr->getConditionCode() != ARMConditionCodeAL) ? ARMConditionNames[instr->getConditionCode()] : "",
instr->getOpCode().isVFPOp() ? getExtraVFPInstrSpecifiers(&instr->getOpCode()) : "");
#else
sprintf(nameBuf,
"%s%s",
getOpCodeName(&instr->getOpCode()),
(instr->getConditionCode() != ARMConditionCodeAL) ? ARMConditionNames[instr->getConditionCode()] : "");
#endif
return nameBuf;
}
void
TR_Debug::printPrefix(TR::FILE *pOutFile, TR::Instruction * instr)
{
printPrefix(pOutFile, instr, instr->getBinaryEncoding(), instr->getBinaryLength());
}
void
TR_Debug::printInstructionComment(TR::FILE *pOutFile, int32_t tabStops, TR::Instruction *instr)
{
while (tabStops-- > 0)
trfprintf(pOutFile, "\t");
dumpInstructionComments(pOutFile, instr);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::Instruction * instr)
{
if (pOutFile == NULL)
return;
switch (instr->getKind())
{
case OMR::Instruction::IsImm:
print(pOutFile, (TR::ARMImmInstruction *)instr);
break;
case OMR::Instruction::IsImmSym:
print(pOutFile, (TR::ARMImmSymInstruction *)instr);
break;
case OMR::Instruction::IsLabel:
print(pOutFile, (TR::ARMLabelInstruction *)instr);
break;
case OMR::Instruction::IsConditionalBranch:
print(pOutFile, (TR::ARMConditionalBranchInstruction *)instr);
break;
#ifdef J9_PROJECT_SPECIFIC
case OMR::Instruction::IsVirtualGuardNOP:
print(pOutFile, (TR::ARMVirtualGuardNOPInstruction *)instr);
break;
#endif
case OMR::Instruction::IsAdmin:
print(pOutFile, (TR::ARMAdminInstruction *)instr);
break;
case OMR::Instruction::IsTrg1Src2:
case OMR::Instruction::IsSrc2:
case OMR::Instruction::IsTrg1Src1:
print(pOutFile, (TR::ARMTrg1Src2Instruction *)instr);
break;
case OMR::Instruction::IsTrg1:
print(pOutFile, (TR::ARMTrg1Instruction *)instr);
break;
case OMR::Instruction::IsMem:
print(pOutFile, (TR::ARMMemInstruction *)instr);
break;
case OMR::Instruction::IsMemSrc1:
print(pOutFile, (TR::ARMMemSrc1Instruction *)instr);
break;
case OMR::Instruction::IsTrg1Mem:
print(pOutFile, (TR::ARMTrg1MemInstruction *)instr);
break;
case OMR::Instruction::IsTrg1MemSrc1:
print(pOutFile, (TR::ARMTrg1MemSrc1Instruction *)instr);
break;
#if defined(__VFP_FP__) && !defined(__SOFTFP__)
case OMR::Instruction::IsTrg2Src1:
print(pOutFile, (TR::ARMTrg2Src1Instruction *)instr);
break;
#endif
case OMR::Instruction::IsMul:
print(pOutFile, (TR::ARMMulInstruction *)instr);
break;
case OMR::Instruction::IsControlFlow:
print(pOutFile, (TR::ARMControlFlowInstruction *)instr);
break;
case OMR::Instruction::IsMultipleMove:
print(pOutFile, (TR::ARMMultipleMoveInstruction *)instr);
break;
default:
TR_ASSERT( 0, "unexpected instruction kind");
// fall thru
case OMR::Instruction::IsNotExtended:
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%-32s", fullOpCodeName(instr));
trfflush(pOutFile);
}
}
}
void
TR_Debug::dumpDependencyGroup(TR::FILE * pOutFile,
TR_ARMRegisterDependencyGroup *group,
int32_t numConditions,
char *prefix,
bool omitNullDependencies)
{
int32_t i;
bool foundDep = false;
trfprintf(pOutFile, "\n\t%s: ", prefix);
for (i = 0; i < numConditions; ++i)
{
TR::Register *virtReg = group->getRegisterDependency(i)->getRegister();
if (omitNullDependencies && !virtReg)
continue;
TR::RealRegister::RegNum r = group->getRegisterDependency(i)->getRealRegister();
trfprintf(pOutFile, " [%s : ", getName(virtReg));
if (r == TR::RealRegister::NoReg)
trfprintf(pOutFile, "NoReg]");
else
trfprintf(pOutFile, "%s]", getName(_cg->machine()->getARMRealRegister(r)));
foundDep = true;
}
if (!foundDep)
trfprintf(pOutFile, " None");
}
void
TR_Debug::dumpDependencies(TR::FILE *pOutFile, TR::Instruction *instr)
{
// If we are in instruction selection and dependency
// information is requested, dump it.
if (pOutFile == NULL || _cg->getStackAtlas())
return;
TR::RegisterDependencyConditions *deps = instr->getDependencyConditions();
if (!deps)
return;
if (deps->getNumPreConditions() > 0)
dumpDependencyGroup(pOutFile, deps->getPreConditions(), deps->getNumPreConditions(), " PRE", true);
if (deps->getNumPostConditions() > 0)
dumpDependencyGroup(pOutFile, deps->getPostConditions(), deps->getNumPostConditions(), "POST", true);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMLabelInstruction * instr)
{
printPrefix(pOutFile, instr);
TR::LabelSymbol *label = instr->getLabelSymbol();
TR::Snippet *snippet = label ? label->getSnippet() : NULL;
if (instr->getOpCodeValue() == ARMOp_label)
{
print(pOutFile, label);
trfprintf(pOutFile, ":");
if (label->isStartInternalControlFlow())
trfprintf(pOutFile, " (Start of internal control flow)");
else if (label->isEndInternalControlFlow())
trfprintf(pOutFile, " (End of internal control flow)");
}
else if (instr->getOpCodeValue() == ARMOp_b || instr->getOpCodeValue() == ARMOp_bl)
{
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, label);
if (snippet)
trfprintf(pOutFile, " (%s)", getName(snippet));
}
else
{
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getTarget1Register(), TR_WordReg);
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSource1Register(), TR_WordReg);
trfprintf(pOutFile, ", ");
uint8_t *instrPos = instr->getBinaryEncoding();
trfprintf(pOutFile, "#(");
print(pOutFile, label);
trfprintf(pOutFile, " - gr15)");
}
printInstructionComment(pOutFile, 1, instr);
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
#ifdef J9_PROJECT_SPECIFIC
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMVirtualGuardNOPInstruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s Site:" POINTER_PRINTF_FORMAT ", ", getOpCodeName(&instr->getOpCode()), instr->getSite());
print(pOutFile, instr->getLabelSymbol());
printInstructionComment(pOutFile, 1, instr);
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
#endif
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMAdminInstruction * instr)
{
// Omit admin instructions from post-binary dumps unless they mark basic block boundaries.
if (instr->getBinaryEncoding() &&
instr->getNode()->getOpCodeValue() != TR::BBStart &&
instr->getNode()->getOpCodeValue() != TR::BBEnd)
return;
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
if (instr->getOpCodeValue() == ARMOp_fence && instr->getFenceNode())
{
TR::Node *fenceNode = instr->getFenceNode();
if (fenceNode->getRelocationType() == TR_AbsoluteAddress)
trfprintf(pOutFile, " Absolute [");
else if (fenceNode->getRelocationType() == TR_ExternalAbsoluteAddress)
trfprintf(pOutFile, " External Absolute [");
else
trfprintf(pOutFile, " Relative [");
for (uint32_t i = 0; i < fenceNode->getNumRelocations(); i++)
{
trfprintf(pOutFile, " " POINTER_PRINTF_FORMAT, fenceNode->getRelocationDestination(i));
}
trfprintf(pOutFile, " ]");
}
else
{
trfprintf(pOutFile, "\t\t");
}
TR::Node *node = instr->getNode();
if (node && node->getOpCodeValue() == TR::BBStart)
trfprintf(pOutFile, " (BBStart (block_%d))", node->getBlock()->getNumber());
else if (node && node->getOpCodeValue() == TR::BBEnd)
trfprintf(pOutFile, " (BBEnd (block_%d))", node->getBlock()->getNumber());
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMImmInstruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t0x%08x", fullOpCodeName(instr), instr->getSourceImmediate());
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMImmSymInstruction * instr)
{
uint8_t *bufferPos = instr->getBinaryEncoding();
int32_t imm = instr->getSourceImmediate();
int32_t distance = imm - (intptr_t)bufferPos;
TR::SymbolReference *symRef = instr->getSymbolReference();
TR::Symbol *sym = symRef->getSymbol();
TR::ResolvedMethodSymbol *calleeSym = sym->getResolvedMethodSymbol();
TR_ResolvedMethod *callee = calleeSym ? calleeSym->getResolvedMethod() : NULL;
bool longJump = imm &&
(distance > BRANCH_FORWARD_LIMIT || distance < BRANCH_BACKWARD_LIMIT) &&
(!callee || !callee->isSameMethod(_comp->getCurrentMethod()));
if (bufferPos != NULL && longJump)
{
if (*(int32_t*)bufferPos == 0xe1a0e00f)
{
const char *name = getName(symRef);
printPrefix(pOutFile, NULL, bufferPos, 4);
trfprintf(pOutFile, "mov\tgr14, gr15");
printPrefix(pOutFile, NULL, bufferPos+4, 4);
trfprintf(pOutFile, "ldr\tgr15, [gr15, #-4]");
printPrefix(pOutFile, NULL, bufferPos+8, 4);
if (name)
trfprintf(pOutFile, "DCD\t0x%x\t; %s (" POINTER_PRINTF_FORMAT ")", imm, name);
else
trfprintf(pOutFile, "DCD\t0x%x", imm);
return;
}
else
{
printARMHelperBranch(instr->getSymbolReference(), bufferPos, pOutFile, fullOpCodeName(instr));
}
}
else
{
const char *name = getName(symRef);
printPrefix(pOutFile, instr);
if (name)
{
trfprintf(pOutFile, "%s\t%-24s; ", fullOpCodeName(instr), name);
TR::Snippet *snippet = sym->getLabelSymbol() ? sym->getLabelSymbol()->getSnippet() : NULL;
if (snippet)
trfprintf(pOutFile, "(%s)", getName(snippet));
else
trfprintf(pOutFile, "(" POINTER_PRINTF_FORMAT ")", imm);
}
else
{
trfprintf(pOutFile, "%s\t" POINTER_PRINTF_FORMAT, fullOpCodeName(instr), imm);
}
}
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMTrg1Src2Instruction * instr)
{
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
TR_RegisterSizes targetSize = instr->doubleFPOp() ? TR_DoubleReg : TR_WordReg;
TR_RegisterSizes source1Size = instr->doubleFPOp() ? TR_DoubleReg : TR_WordReg;
TR_RegisterSizes source2Size = instr->doubleFPOp() ? TR_DoubleReg : TR_WordReg;
#else
TR_RegisterSizes targetSize = TR_WordReg;
TR_RegisterSizes source1Size = TR_WordReg;
TR_RegisterSizes source2Size = TR_WordReg;
#endif
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
if (instr->getOpCodeValue() == ARMOp_fmrs)
{
if (instr->getTarget1Register())
{
print(pOutFile, instr->getTarget1Register(), targetSize);
trfprintf(pOutFile, ", ");
}
if (instr->getSource1Register())
{
print(pOutFile, instr->getSource1Register(), source1Size);
}
}
else if (instr->getOpCodeValue() == ARMOp_fmsr)
{
if (instr->getSource1Register())
{
print(pOutFile, instr->getSource1Register(), source1Size);
trfprintf(pOutFile, ", ");
}
if (instr->getTarget1Register())
{
print(pOutFile, instr->getTarget1Register(), targetSize);
}
}
else if (instr->getOpCodeValue() == ARMOp_fmdrr)
{
print(pOutFile, instr->getSource2Operand(), TR_DoubleReg);
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getTarget1Register(), TR_WordReg);
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSource1Register(), TR_WordReg);
}
else if (instr->getOpCodeValue() == ARMOp_fcvtds ||
instr->getOpCodeValue() == ARMOp_fsitod ||
instr->getOpCodeValue() == ARMOp_fuitod)
{
print(pOutFile, instr->getTarget1Register(), TR_DoubleReg);
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSource2Operand(), TR_WordReg);
}
else if (instr->getOpCodeValue() == ARMOp_fcvtsd ||
instr->getOpCodeValue() == ARMOp_ftosizd ||
instr->getOpCodeValue() == ARMOp_ftouizd)
{
print(pOutFile, instr->getTarget1Register(), TR_WordReg);
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSource2Operand(), TR_DoubleReg);
}
else if (instr->getOpCodeValue() == ARMOp_fcmpzd ||
instr->getOpCodeValue() == ARMOp_fcmpzs)
{
print(pOutFile, instr->getTarget1Register(), (instr->getOpCodeValue() == ARMOp_fcmpzd) ? TR_DoubleReg : TR_WordReg);
#if defined(__ARM_ARCH_7A__) && defined(__VFP_FP__) && !defined(__SOFTFP__)
trfprintf(pOutFile, ", #0.0");
#endif
}
else
#endif
{
if (instr->getTarget1Register())
{
// TR_RegisterSizes targetSize = TR_WordReg;
print(pOutFile, instr->getTarget1Register(), targetSize);
trfprintf(pOutFile, ", ");
}
// TR_RegisterSizes source1Size = TR_WordReg;
if (instr->getSource1Register() && instr->getOpCodeValue() != ARMOp_swp)
{
print(pOutFile, instr->getSource1Register(), source1Size);
trfprintf(pOutFile, ", ");
}
// TR_RegisterSizes source2Size = TR_WordReg;
print(pOutFile, instr->getSource2Operand(), source2Size);
if (instr->getSource1Register() && instr->getOpCodeValue() == ARMOp_swp)
{
trfprintf(pOutFile, ", [");
print(pOutFile, instr->getSource1Register(), source1Size);
trfprintf(pOutFile, "]");
}
}
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMTrg2Src1Instruction * instr)
{
// fmrrd
TR_RegisterSizes size = TR_WordReg;
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
if (instr->getTarget1Register())
{
print(pOutFile, instr->getTarget1Register(), size);
trfprintf(pOutFile, ", ");
}
if (instr->getTarget2Register())
{
print(pOutFile, instr->getTarget2Register(), size);
trfprintf(pOutFile, ", ");
}
if (instr->getSource1Register())
{
print(pOutFile, instr->getSource1Register(), TR_DoubleReg);
}
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
#endif
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMMulInstruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getTargetLoRegister());
if (instr->getTargetHiRegister()) // if a mull instruction
{
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getTargetHiRegister());
}
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSource1Register());
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSource2Register());
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMMemSrc1Instruction * instr)
{
if(instr->getBinaryEncoding() &&
instr->getMemoryReference()->hasDelayedOffset() &&
!instr->getMemoryReference()->getUnresolvedSnippet())
{
TR_ARMOpCodes op = instr->getOpCodeValue();
int32_t offset = instr->getMemoryReference()->getOffset();
if(op == ARMOp_strh && !constantIsUnsignedImmed8(offset))
{
printARMDelayedOffsetInstructions(pOutFile,instr);
return;
}
else if(!constantIsImmed12(offset))
{
printARMDelayedOffsetInstructions(pOutFile,instr);
return;
}
// deliberate fall through if none of the above cases are taken.
}
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getMemoryReference());
trfprintf(pOutFile, ", ");
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
print(pOutFile, instr->getSourceRegister(), instr->doubleFPOp() ? TR_DoubleReg : TR_WordReg);
#else
print(pOutFile, instr->getSourceRegister());
#endif
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMTrg1Instruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getTargetRegister());
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMMemInstruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getMemoryReference());
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMTrg1MemInstruction * instr)
{
if(instr->getBinaryEncoding() &&
instr->getMemoryReference()->hasDelayedOffset() &&
!instr->getMemoryReference()->getUnresolvedSnippet())
{
TR_ARMOpCodes op = instr->getOpCodeValue();
int32_t offset = instr->getMemoryReference()->getOffset();
if(op == ARMOp_add && instr->getMemoryReference()->getIndexRegister())
{
printARMDelayedOffsetInstructions(pOutFile,instr);
return;
}
else if((op == ARMOp_ldrsb || op == ARMOp_ldrh || op == ARMOp_ldrsh) && !constantIsUnsignedImmed8(offset))
{
printARMDelayedOffsetInstructions(pOutFile,instr);
return;
}
else if(!constantIsImmed12(offset))
{
printARMDelayedOffsetInstructions(pOutFile,instr);
return;
}
// deliberate fall through if none of the above cases are taken.
}
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
print(pOutFile, instr->getTargetRegister(), instr->doubleFPOp() ? TR_DoubleReg : TR_WordReg);
#else
print(pOutFile, instr->getTargetRegister());
#endif
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getMemoryReference());
TR::Symbol *symbol = instr->getMemoryReference()->getSymbolReference().getSymbol();
if (symbol && symbol->isSpillTempAuto())
{
trfprintf(pOutFile, "\t; spilled for %s", getName(instr->getNode()->getOpCode()));
}
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMTrg1MemSrc1Instruction * instr)
{
// strex
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getTargetRegister());
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getSourceRegister());
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getMemoryReference());
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMControlFlowInstruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
int i;
int numTargets = instr->getNumTargets();
int numSources = instr->getNumSources();
for (i = 0; i < numTargets; i++)
{
print(pOutFile, instr->getTargetRegister(i));
if (i != numTargets + numSources - 1)
{
trfprintf(pOutFile, ", ");
}
}
for (i = 0; i < numSources; i++)
{
print(pOutFile, instr->getSourceRegister(i));
if (i != numSources - 1)
{
trfprintf(pOutFile, ", ");
}
}
if (instr->getOpCode2Value() != ARMOp_bad)
{
trfprintf(pOutFile, ", %s", getOpCodeName(&instr->getOpCode2()));
}
if (instr->getLabelSymbol())
{
trfprintf(pOutFile, ", ");
print(pOutFile, instr->getLabelSymbol());
}
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::ARMMultipleMoveInstruction * instr)
{
printPrefix(pOutFile, instr);
trfprintf(pOutFile, "%s\t", fullOpCodeName(instr));
print(pOutFile, instr->getMemoryBaseRegister());
trfprintf(pOutFile, "%s, {", instr->isWriteBack() ? "!" : "");
TR::Machine *machine = _cg->machine();
uint32_t regList = (uint32_t) instr->getRegisterList();
if (!instr->getOpCode().isVFPOp())
{
for (int i = 0; regList && i < 16; i++)
{
if (regList & 1)
{
TR::RealRegister::RegNum r;
r = (TR::RealRegister::RegNum)((int)TR::RealRegister::FirstGPR + i);
print(pOutFile, machine->getARMRealRegister(r));
regList >>= 1;
if (regList && i != 15)
trfprintf(pOutFile, ",");
}
else
regList >>= 1;
}
}
else
{
int startReg = (regList & 0x0f000) >> 12;
int nreg = (regList & 0x00ff) >> 1;
TR_RegisterSizes size = instr->doubleFPOp() ? TR_DoubleReg : TR_WordReg;
for (int i = 0; i < nreg; i++)
{
TR::RealRegister::RegNum r = (TR::RealRegister::RegNum)((int)TR::RealRegister::FirstFPR + startReg + i);
print(pOutFile, machine->getARMRealRegister(r), size);
if (i != (nreg - 1))
trfprintf(pOutFile, ",");
}
}
trfprintf(pOutFile, "}");
dumpDependencies(pOutFile, instr);
trfflush(pOutFile);
}
void
TR_Debug::printARMHelperBranch(TR::SymbolReference *symRef, uint8_t *bufferPos, TR::FILE *pOutFile, const char * opcodeName)
{
TR::MethodSymbol *methodSym = symRef->getSymbol()->castToMethodSymbol();
uintptr_t target = (uintptr_t)methodSym->getMethodAddress();
int32_t distance = target - (uintptr_t)bufferPos;
char *info = "";
if ((distance > BRANCH_FORWARD_LIMIT || distance < BRANCH_BACKWARD_LIMIT))
{
int32_t refNum = symRef->getReferenceNumber();
if (refNum < TR_ARMnumRuntimeHelpers)
{
target = _comp->fe()->indexedTrampolineLookup(refNum, (void *)bufferPos);
info = " through trampoline";
}
else if (*((uintptr_t*)bufferPos) == 0xe28fe004) // This is a JNI method
{
target = *((uintptr_t*)(bufferPos+8));
info = " long jump";
}
else
{
target = _comp->fe()->methodTrampolineLookup(_comp, symRef, (void *)bufferPos);
info = " through trampoline";
}
}
const char *name = getName(symRef);
printPrefix(pOutFile, NULL, bufferPos, 4);
if (name)
trfprintf(pOutFile, "%s\t%s\t;%s (" POINTER_PRINTF_FORMAT ")", opcodeName, name, info, target);
else
trfprintf(pOutFile, "%s\t" POINTER_PRINTF_FORMAT "\t\t;%s", opcodeName, target, info);
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::MemoryReference * mr)
{
trfprintf(pOutFile, "[");
if (mr->getBaseRegister() != NULL)
{
print(pOutFile, mr->getBaseRegister());
if (mr->isPostIndexed())
trfprintf(pOutFile, "]");
trfprintf(pOutFile, ", ");
}
if (mr->getIndexRegister() != NULL)
{
print(pOutFile, mr->getIndexRegister());
if(mr->getScale() != 0)
{
TR_ASSERT( mr->getScale() == 4, "strides other than 4 unimplemented");
trfprintf(pOutFile, " LSL #2");
}
}
else
{
if (mr->getSymbolReference().getSymbol() != NULL)
{
print(pOutFile, &mr->getSymbolReference());
}
else
{
trfprintf(pOutFile, "%+d", mr->getOffset());
}
}
if (!mr->isPostIndexed())
{
trfprintf(pOutFile, "]");
}
if (mr->isImmediatePreIndexed())
{
trfprintf(pOutFile, "!");
}
}
void
TR_Debug::print(TR::FILE *pOutFile, TR_ARMOperand2 * op, TR_RegisterSizes size)
{
switch (op->_opType)
{
case ARMOp2RegLSLImmed: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " LSL #%d", op->_shiftOrImmed); break;
case ARMOp2RegLSRImmed: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " LSR #%d", op->_shiftOrImmed); break;
case ARMOp2RegASRImmed: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " ASR #%d", op->_shiftOrImmed); break;
case ARMOp2RegRORImmed: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " ROR #%d", op->_shiftOrImmed); break;
case ARMOp2Reg: print(pOutFile, op->_baseRegister, size); break;
case ARMOp2RegRRX: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " RRX"); break;
case ARMOp2RegLSLReg: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " LSL "); print(pOutFile, op->_shiftRegister, size); break;
case ARMOp2RegLSRReg: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " LSR "); print(pOutFile, op->_shiftRegister, size); break;
case ARMOp2RegASRReg: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " ASR "); print(pOutFile, op->_shiftRegister, size); break;
case ARMOp2RegRORReg: print(pOutFile, op->_baseRegister, size); trfprintf(pOutFile, " ROR "); print(pOutFile, op->_shiftRegister, size); break;
case ARMOp2Immed8r:
if (op->_immedShift)
trfprintf(pOutFile, "#0x%08x (0x%x << %d)", op->_shiftOrImmed << op->_immedShift, op->_shiftOrImmed, op->_immedShift);
else
trfprintf(pOutFile, "#0x%08x", op->_shiftOrImmed);
break;
}
}
void
TR_Debug::printARMGCRegisterMap(TR::FILE *pOutFile, TR::GCRegisterMap * map)
{
TR::Machine *machine = _cg->machine();
trfprintf(pOutFile," registers: {");
for (int i = 15; i>=0; i--)
{
if (map->getMap() & (1 << i))
trfprintf(pOutFile, "%s ", getName(machine->getARMRealRegister((TR::RealRegister::RegNum)(i + TR::RealRegister::FirstGPR))));
}
trfprintf(pOutFile,"}\n");
}
void
TR_Debug::print(TR::FILE *pOutFile, TR::RealRegister * reg, TR_RegisterSizes size)
{
trfprintf(pOutFile, "%s", getName(reg, size));
}
const char *
TR_Debug::getName(TR::RealRegister * reg, TR_RegisterSizes size)
{
return getName(reg->getRegisterNumber(), size);
}
const char *
TR_Debug::getName(uint32_t realRegisterIndex, TR_RegisterSizes size)
{
switch (realRegisterIndex)
{
case TR::RealRegister::gr0 : return "gr0";
case TR::RealRegister::gr1 : return "gr1";
case TR::RealRegister::gr2 : return "gr2";
case TR::RealRegister::gr3 : return "gr3";
case TR::RealRegister::gr4 : return "gr4";
case TR::RealRegister::gr5 : return "gr5";
case TR::RealRegister::gr6 : return "gr6";
case TR::RealRegister::gr7 : return "gr7";
case TR::RealRegister::gr8 : return "gr8";
case TR::RealRegister::gr9 : return "gr9";
case TR::RealRegister::gr10: return "gr10";
case TR::RealRegister::gr11: return "gr11";
case TR::RealRegister::gr12: return "gr12";
case TR::RealRegister::gr13: return "gr13";
case TR::RealRegister::gr14: return "gr14";
case TR::RealRegister::gr15: return "gr15";
#if defined(__VFP_FP__) && !defined(__SOFTFP__)
case TR::RealRegister::fp0 : return ((size == TR_DoubleReg) ? "d0" : "s0");
case TR::RealRegister::fp1 : return ((size == TR_DoubleReg) ? "d1" : "s2");
case TR::RealRegister::fp2 : return ((size == TR_DoubleReg) ? "d2" : "s4");
case TR::RealRegister::fp3 : return ((size == TR_DoubleReg) ? "d3" : "s6");
case TR::RealRegister::fp4 : return ((size == TR_DoubleReg) ? "d4" : "s8");
case TR::RealRegister::fp5 : return ((size == TR_DoubleReg) ? "d5" : "s10");
case TR::RealRegister::fp6 : return ((size == TR_DoubleReg) ? "d6" : "s12");
case TR::RealRegister::fp7 : return ((size == TR_DoubleReg) ? "d7" : "s14");
case TR::RealRegister::fp8 : return ((size == TR_DoubleReg) ? "d8" : "s16");
case TR::RealRegister::fp9 : return ((size == TR_DoubleReg) ? "d9" : "s18");
case TR::RealRegister::fp10 : return ((size == TR_DoubleReg) ? "d10" : "s20");
case TR::RealRegister::fp11 : return ((size == TR_DoubleReg) ? "d11" : "s22");
case TR::RealRegister::fp12 : return ((size == TR_DoubleReg) ? "d12" : "s24");
case TR::RealRegister::fp13 : return ((size == TR_DoubleReg) ? "d13" : "s26");
case TR::RealRegister::fp14 : return ((size == TR_DoubleReg) ? "d14" : "s28");
case TR::RealRegister::fp15 : return ((size == TR_DoubleReg) ? "d15" : "s30");
// For Single-precision registers group (fs0~fs15/FSR)
case TR::RealRegister::fs0 : return "S0";
case TR::RealRegister::fs1 : return "S1";
case TR::RealRegister::fs2 : return "S2";
case TR::RealRegister::fs3 : return "S3";
case TR::RealRegister::fs4 : return "S4";
case TR::RealRegister::fs5 : return "S5";
case TR::RealRegister::fs6 : return "S6";
case TR::RealRegister::fs7 : return "S7";
case TR::RealRegister::fs8 : return "S8";
case TR::RealRegister::fs9 : return "S9";
case TR::RealRegister::fs10 : return "S10";
case TR::RealRegister::fs11 : return "S11";
case TR::RealRegister::fs12 : return "S12";
case TR::RealRegister::fs13 : return "S13";
case TR::RealRegister::fs14 : return "S14";