/
JIT.c
1779 lines (1602 loc) · 56.8 KB
/
JIT.c
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// Copyright (c) 2012 DotNetAnywhere
//
// 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.
#include "Compat.h"
#include "Sys.h"
#include "JIT.h"
#include "JIT_OpCodes.h"
#include "CIL_OpCodes.h"
#include "MetaData.h"
#include "Types.h"
#include "Type.h"
#include "InternalCall.h"
#include "Heap.h"
#include "PInvoke.h"
#define CorILMethod_TinyFormat 0x02
#define CorILMethod_MoreSects 0x08
#define CorILMethod_Sect_EHTable 0x01
#define CorILMethod_Sect_FatFormat 0x40
#define CorILMethod_Sect_MoreSects 0x80
#define DYNAMIC_OK 0x100
#define DYNAMIC_JUMP_TARGET 0x200
#define DYNAMIC_EX_START 0x400
#define DYNAMIC_EX_END 0x800
#define DYNAMIC_BYTE_COUNT_MASK 0xff
typedef struct tOps_ tOps;
struct tOps_ {
U32 *p;
U32 capacity;
U32 ofs;
};
typedef struct tTypeStack_ tTypeStack;
struct tTypeStack_ {
tMD_TypeDef **ppTypes;
U32 ofs;
U32 maxBytes; // The max size of the stack in bytes
};
#define InitOps(ops_, initialCapacity) ops_.capacity = initialCapacity; ops_.ofs = 0; ops_.p = malloc((initialCapacity) * sizeof(I32));
#define DeleteOps(ops_) free(ops_.p)
// Turn this into a MACRO at some point?
static U32 Translate(U32 op, U32 getDynamic) {
if (op >= JIT_OPCODE_MAXNUM) {
Crash("Illegal opcode: %d", op);
}
if (jitCodeInfo[op].pEnd == NULL) {
Crash("Opcode not available: 0x%08x", op);
}
if (getDynamic) {
return (U32)jitCodeInfo[op].isDynamic;
} else {
return (U32)jitCodeInfo[op].pStart;
}
}
#ifdef GEN_COMBINED_OPCODES
#define PushU32(v) PushU32_(&ops, (U32)(v)); PushU32_(&isDynamic, 0)
#define PushI32(v) PushU32_(&ops, (U32)(v)); PushU32_(&isDynamic, 0)
#define PushFloat(v) convFloat.f=(float)(v); PushU32_(&ops, convFloat.u32); PushU32_(&isDynamic, 0)
#define PushDouble(v) convDouble.d=(double)(v); PushU32_(&ops, convDouble.u32.a); PushU32_(&ops, convDouble.u32.b); PushU32_(&isDynamic, 0); PushU32_(&isDynamic, 0)
#define PushPTR(ptr) PushU32_(&ops, (U32)(ptr)); PushU32_(&isDynamic, 0)
#define PushOp(op) PushU32_(&ops, Translate((U32)(op), 0)); PushU32_(&isDynamic, Translate((U32)(op), 1))
#define PushOpParam(op, param) PushOp(op); PushU32_(&ops, (U32)(param)); PushU32_(&isDynamic, 0)
#else
#define PushU32(v) PushU32_(&ops, (U32)(v))
#define PushI32(v) PushU32_(&ops, (U32)(v))
#define PushFloat(v) convFloat.f=(float)(v); PushU32_(&ops, convFloat.u32)
#define PushDouble(v) convDouble.d=(double)(v); PushU32_(&ops, convDouble.u32.a); PushU32_(&ops, convDouble.u32.b)
#define PushPTR(ptr) PushU32_(&ops, (U32)(ptr))
#define PushOp(op) PushU32_(&ops, Translate((U32)(op), 0))
#define PushOpParam(op, param) PushOp(op); PushU32_(&ops, (U32)(param))
#endif
#define PushBranch() PushU32_(&branchOffsets, ops.ofs)
#define PushStackType(type) PushStackType_(&typeStack, type);
#define PopStackType() (typeStack.ppTypes[--typeStack.ofs])
#define PopStackTypeDontCare() typeStack.ofs--
#define PopStackTypeMulti(number) typeStack.ofs -= number
#define PopStackTypeAll() typeStack.ofs = 0;
#define MayCopyTypeStack() if (u32Value > cilOfs) ppTypeStacks[u32Value] = DeepCopyTypeStack(&typeStack)
static void PushStackType_(tTypeStack *pTypeStack, tMD_TypeDef *pType) {
U32 i, size;
MetaData_Fill_TypeDef(pType, NULL, NULL);
pTypeStack->ppTypes[pTypeStack->ofs++] = pType;
// Count current stack size in bytes
size = 0;
for (i=0; i<pTypeStack->ofs; i++) {
size += pTypeStack->ppTypes[i]->stackSize;
}
if (size > pTypeStack->maxBytes) {
pTypeStack->maxBytes = size;
}
//printf("Stack ofs = %d; Max stack size: %d (0x%x)\n", pTypeStack->ofs, size, size);
}
static void PushU32_(tOps *pOps, U32 v) {
if (pOps->ofs >= pOps->capacity) {
pOps->capacity <<= 1;
// printf("a.pOps->p = 0x%08x size=%d\n", pOps->p, pOps->capacity * sizeof(U32));
pOps->p = realloc(pOps->p, pOps->capacity * sizeof(U32));
}
pOps->p[pOps->ofs++] = v;
}
static U32 GetUnalignedU32(U8 *pCIL, U32 *pCILOfs) {
U32 a,b,c,d;
a = pCIL[(*pCILOfs)++];
b = pCIL[(*pCILOfs)++];
c = pCIL[(*pCILOfs)++];
d = pCIL[(*pCILOfs)++];
return a | (b << 8) | (c << 16) | (d << 24);
}
static tTypeStack* DeepCopyTypeStack(tTypeStack *pToCopy) {
tTypeStack *pCopy;
pCopy = TMALLOC(tTypeStack);
pCopy->maxBytes = pToCopy->maxBytes;
pCopy->ofs = pToCopy->ofs;
if (pToCopy->ofs > 0) {
pCopy->ppTypes = malloc(pToCopy->ofs * sizeof(tMD_TypeDef*));
memcpy(pCopy->ppTypes, pToCopy->ppTypes, pToCopy->ofs * sizeof(tMD_TypeDef*));
} else {
pCopy->ppTypes = NULL;
}
return pCopy;
}
static void RestoreTypeStack(tTypeStack *pMainStack, tTypeStack *pCopyFrom) {
// This does not effect maxBytes, as the current value will always be equal
// or greater than the value being copied from.
if (pCopyFrom == NULL) {
pMainStack->ofs = 0;
} else {
pMainStack->ofs = pCopyFrom->ofs;
if (pCopyFrom->ppTypes != NULL) {
memcpy(pMainStack->ppTypes, pCopyFrom->ppTypes, pCopyFrom->ofs * sizeof(tMD_TypeDef*));
}
}
}
#ifdef GEN_COMBINED_OPCODES
static U32 FindOpCode(void *pAddr) {
U32 i;
for (i=0; i<JIT_OPCODE_MAXNUM; i++) {
if (jitCodeInfo[i].pStart == pAddr) {
return i;
}
}
Crash("Cannot find opcode for address: 0x%08x", (U32)pAddr);
FAKE_RETURN;
}
static U32 combinedMemSize = 0;
static U32 GenCombined(tOps *pOps, tOps *pIsDynamic, U32 startOfs, U32 count, U32 *pCombinedSize, void **ppMem) {
U32 memSize;
U32 ofs;
void *pCombined;
U32 opCopyToOfs;
U32 shrinkOpsBy;
U32 goNextSize = (U32)((char*)jitCodeGoNext.pEnd - (char*)jitCodeGoNext.pStart);
// Get length of final combined code chunk
memSize = 0;
for (ofs=0; ofs < count; ofs++) {
U32 opcode = FindOpCode((void*)pOps->p[startOfs + ofs]);
U32 size = (U32)((char*)jitCodeInfo[opcode].pEnd - (char*)jitCodeInfo[opcode].pStart);
memSize += size;
ofs += (pIsDynamic->p[startOfs + ofs] & DYNAMIC_BYTE_COUNT_MASK) >> 2;
}
// Add length of GoNext code
memSize += goNextSize;
pCombined = malloc(memSize);
*ppMem = pCombined;
combinedMemSize += memSize;
*pCombinedSize = memSize;
//log_f(0, "Combined JIT size: %d\n", combinedMemSize);
// Copy the bits of code into place
memSize = 0;
opCopyToOfs = 1;
for (ofs=0; ofs < count; ofs++) {
U32 extraOpBytes;
U32 opcode = FindOpCode((void*)pOps->p[startOfs + ofs]);
U32 size = (U32)((char*)jitCodeInfo[opcode].pEnd - (char*)jitCodeInfo[opcode].pStart);
memcpy((char*)pCombined + memSize, jitCodeInfo[opcode].pStart, size);
memSize += size;
extraOpBytes = pIsDynamic->p[startOfs + ofs] & DYNAMIC_BYTE_COUNT_MASK;
memmove(&pOps->p[startOfs + opCopyToOfs], &pOps->p[startOfs + ofs + 1], extraOpBytes);
opCopyToOfs += extraOpBytes >> 2;
ofs += extraOpBytes >> 2;
}
shrinkOpsBy = ofs - opCopyToOfs;
// Add GoNext code
memcpy((char*)pCombined + memSize, jitCodeGoNext.pStart, goNextSize);
pOps->p[startOfs] = (U32)pCombined;
return shrinkOpsBy;
}
#endif
static U32* JITit(tMD_MethodDef *pMethodDef, U8 *pCIL, U32 codeSize, tParameter *pLocals, tJITted *pJITted, U32 genCombinedOpcodes) {
U32 maxStack = pJITted->maxStack;
U32 i;
U32 cilOfs;
tOps ops; // The JITted op-codes
tOps branchOffsets; // Filled with all the branch instructions that need offsets fixing
U32 *pJITOffsets; // To store the JITted code offset of each CIL byte.
// Only CIL bytes that are the first byte of an instruction will have meaningful data
tTypeStack **ppTypeStacks; // To store the evaluation stack state for forward jumps
U32 *pFinalOps;
tMD_TypeDef *pStackType;
tTypeStack typeStack;
#ifdef GEN_COMBINED_OPCODES
tOps isDynamic;
#endif
I32 i32Value;
U32 u32Value, u32Value2, ofs;
uConvFloat convFloat;
uConvDouble convDouble;
tMD_TypeDef *pTypeA, *pTypeB;
PTR pMem;
tMetaData *pMetaData;
pMetaData = pMethodDef->pMetaData;
pJITOffsets = malloc(codeSize * sizeof(U32));
// + 1 to handle cases where the stack is being restored at the last instruction in a method
ppTypeStacks = malloc((codeSize + 1) * sizeof(tTypeStack*));
memset(ppTypeStacks, 0, (codeSize + 1) * sizeof(tTypeStack*));
typeStack.maxBytes = 0;
typeStack.ofs = 0;
typeStack.ppTypes = malloc(maxStack * sizeof(tMD_TypeDef*));
// Set up all exception 'catch' blocks with the correct stack information,
// So they'll have just the exception type on the stack when entered
for (i=0; i<pJITted->numExceptionHandlers; i++) {
tExceptionHeader *pEx;
pEx = &pJITted->pExceptionHeaders[i];
if (pEx->flags == COR_ILEXCEPTION_CLAUSE_EXCEPTION) {
tTypeStack *pTypeStack;
ppTypeStacks[pEx->handlerStart] = pTypeStack = TMALLOC(tTypeStack);
pTypeStack->maxBytes = 4;
pTypeStack->ofs = 1;
pTypeStack->ppTypes = TMALLOC(tMD_TypeDef*);
pTypeStack->ppTypes[0] = pEx->u.pCatchTypeDef;
}
}
InitOps(ops, 32);
InitOps(branchOffsets, 16);
#ifdef GEN_COMBINED_OPCODES
InitOps(isDynamic, 32);
#endif
cilOfs = 0;
do {
U8 op;
// Set the JIT offset for this CIL opcode
pJITOffsets[cilOfs] = ops.ofs;
op = pCIL[cilOfs++];
//printf("Opcode: 0x%02x\n", op);
switch (op) {
case CIL_NOP:
PushOp(JIT_NOP);
break;
case CIL_LDNULL:
PushOp(JIT_LOAD_NULL);
PushStackType(types[TYPE_SYSTEM_OBJECT]);
break;
case CIL_DUP:
pStackType = PopStackType();
PushStackType(pStackType);
PushStackType(pStackType);
switch (pStackType->stackSize) {
case 4:
PushOp(JIT_DUP_4);
break;
case 8:
PushOp(JIT_DUP_8);
break;
default:
PushOpParam(JIT_DUP_GENERAL, pStackType->stackSize);
break;
}
break;
case CIL_POP:
pStackType = PopStackType();
if (pStackType->stackSize == 4) {
PushOp(JIT_POP_4);
} else {
PushOpParam(JIT_POP, pStackType->stackSize);
}
break;
case CIL_LDC_I4_M1:
case CIL_LDC_I4_0:
case CIL_LDC_I4_1:
case CIL_LDC_I4_2:
case CIL_LDC_I4_3:
case CIL_LDC_I4_4:
case CIL_LDC_I4_5:
case CIL_LDC_I4_6:
case CIL_LDC_I4_7:
case CIL_LDC_I4_8:
i32Value = (I8)op - (I8)CIL_LDC_I4_0;
goto cilLdcI4;
case CIL_LDC_I4_S:
i32Value = (I8)pCIL[cilOfs++];
goto cilLdcI4;
case CIL_LDC_I4:
i32Value = (I32)GetUnalignedU32(pCIL, &cilOfs);
cilLdcI4:
if (i32Value >= -1 && i32Value <= 2) {
PushOp(JIT_LOAD_I4_0 + i32Value);
} else {
PushOp(JIT_LOAD_I32);
PushI32(i32Value);
}
PushStackType(types[TYPE_SYSTEM_INT32]);
break;
case CIL_LDC_I8:
PushOp(JIT_LOAD_I64);
u32Value = GetUnalignedU32(pCIL, &cilOfs);
PushU32(u32Value);
u32Value = GetUnalignedU32(pCIL, &cilOfs);
PushU32(u32Value);
PushStackType(types[TYPE_SYSTEM_INT64]);
break;
case CIL_LDC_R4:
convFloat.u32 = GetUnalignedU32(pCIL, &cilOfs);
PushStackType(types[TYPE_SYSTEM_SINGLE]);
PushOp(JIT_LOAD_F32);
PushFloat(convFloat.f);
break;
case CIL_LDC_R8:
convDouble.u32.a = GetUnalignedU32(pCIL, &cilOfs);
convDouble.u32.b = GetUnalignedU32(pCIL, &cilOfs);
PushStackType(types[TYPE_SYSTEM_DOUBLE]);
PushOp(JIT_LOAD_F64);
PushDouble(convDouble.d);
break;
case CIL_LDARG_0:
case CIL_LDARG_1:
case CIL_LDARG_2:
case CIL_LDARG_3:
u32Value = op - CIL_LDARG_0;
goto cilLdArg;
case CIL_LDARG_S:
u32Value = pCIL[cilOfs++];
cilLdArg:
pStackType = pMethodDef->pParams[u32Value].pTypeDef;
ofs = pMethodDef->pParams[u32Value].offset;
if (pStackType->stackSize == 4 && ofs < 32) {
PushOp(JIT_LOADPARAMLOCAL_0 + (ofs >> 2));
} else {
PushOpParam(JIT_LOADPARAMLOCAL_TYPEID + pStackType->stackType, ofs);
// if it's a valuetype then push the TypeDef of it afterwards
if (pStackType->stackType == EVALSTACK_VALUETYPE) {
PushPTR(pStackType);
}
}
PushStackType(pStackType);
break;
case CIL_LDARGA_S:
// Get the argument number to load the address of
u32Value = pCIL[cilOfs++];
PushOpParam(JIT_LOAD_PARAMLOCAL_ADDR, pMethodDef->pParams[u32Value].offset);
PushStackType(types[TYPE_SYSTEM_INTPTR]);
break;
case CIL_STARG_S:
// Get the argument number to store the arg of
u32Value = pCIL[cilOfs++];
pStackType = PopStackType();
ofs = pMethodDef->pParams[u32Value].offset;
if (pStackType->stackSize == 4 && ofs < 32) {
PushOp(JIT_STOREPARAMLOCAL_0 + (ofs >> 2));
} else {
PushOpParam(JIT_STOREPARAMLOCAL_TYPEID + pStackType->stackType, ofs);
// if it's a valuetype then push the TypeDef of it afterwards
if (pStackType->stackType == EVALSTACK_VALUETYPE) {
PushPTR(pStackType);
}
}
break;
case CIL_LDLOC_0:
case CIL_LDLOC_1:
case CIL_LDLOC_2:
case CIL_LDLOC_3:
// Push opcode and offset into locals memory
u32Value = op - CIL_LDLOC_0;
goto cilLdLoc;
case CIL_LDLOC_S:
// Push opcode and offset into locals memory
u32Value = pCIL[cilOfs++];
cilLdLoc:
pStackType = pLocals[u32Value].pTypeDef;
ofs = pMethodDef->parameterStackSize + pLocals[u32Value].offset;
if (pStackType->stackSize == 4 && ofs < 32) {
PushOp(JIT_LOADPARAMLOCAL_0 + (ofs >> 2));
} else {
PushOpParam(JIT_LOADPARAMLOCAL_TYPEID + pStackType->stackType, ofs);
// if it's a valuetype then push the TypeDef of it afterwards
if (pStackType->stackType == EVALSTACK_VALUETYPE) {
PushPTR(pStackType);
}
}
PushStackType(pStackType);
break;
case CIL_STLOC_0:
case CIL_STLOC_1:
case CIL_STLOC_2:
case CIL_STLOC_3:
u32Value = op - CIL_STLOC_0;
goto cilStLoc;
case CIL_STLOC_S:
u32Value = pCIL[cilOfs++];
cilStLoc:
pStackType = PopStackType();
ofs = pMethodDef->parameterStackSize + pLocals[u32Value].offset;
if (pStackType->stackSize == 4 && ofs < 32) {
PushOp(JIT_STOREPARAMLOCAL_0 + (ofs >> 2));
} else {
PushOpParam(JIT_STOREPARAMLOCAL_TYPEID + pStackType->stackType, ofs);
// if it's a valuetype then push the TypeDef of it afterwards
if (pStackType->stackType == EVALSTACK_VALUETYPE) {
PushPTR(pStackType);
}
}
break;
case CIL_LDLOCA_S:
// Get the local number to load the address of
u32Value = pCIL[cilOfs++];
PushOpParam(JIT_LOAD_PARAMLOCAL_ADDR, pMethodDef->parameterStackSize + pLocals[u32Value].offset);
PushStackType(types[TYPE_SYSTEM_INTPTR]);
break;
case CIL_LDIND_I1:
u32Value = TYPE_SYSTEM_SBYTE;
goto cilLdInd;
case CIL_LDIND_U1:
u32Value = TYPE_SYSTEM_BYTE;
goto cilLdInd;
case CIL_LDIND_I2:
u32Value = TYPE_SYSTEM_INT16;
goto cilLdInd;
case CIL_LDIND_U2:
u32Value = TYPE_SYSTEM_UINT16;
goto cilLdInd;
case CIL_LDIND_I4:
u32Value = TYPE_SYSTEM_INT32;
goto cilLdInd;
case CIL_LDIND_U4:
u32Value = TYPE_SYSTEM_UINT32;
goto cilLdInd;
case CIL_LDIND_I8:
u32Value = TYPE_SYSTEM_INT64;
goto cilLdInd;
case CIL_LDIND_R4:
u32Value = TYPE_SYSTEM_SINGLE;
goto cilLdInd;
case CIL_LDIND_R8:
u32Value = TYPE_SYSTEM_DOUBLE;
goto cilLdInd;
case CIL_LDIND_REF:
u32Value = TYPE_SYSTEM_OBJECT;
goto cilLdInd;
case CIL_LDIND_I:
u32Value = TYPE_SYSTEM_INTPTR;
cilLdInd:
PopStackTypeDontCare(); // don't care what it is
PushOp(JIT_LOADINDIRECT_I8 + (op - CIL_LDIND_I1));
PushStackType(types[u32Value]);
break;
case CIL_STIND_REF:
case CIL_STIND_I1:
case CIL_STIND_I2:
case CIL_STIND_I4:
PopStackTypeMulti(2); // Don't care what they are
PushOp(JIT_STOREINDIRECT_REF + (op - CIL_STIND_REF));
break;
case CIL_RET:
PushOp(JIT_RETURN);
RestoreTypeStack(&typeStack, ppTypeStacks[cilOfs]);
break;
case CIL_CALL:
case CIL_CALLVIRT:
{
tMD_MethodDef *pCallMethod;
tMD_TypeDef *pBoxCallType;
U32 derefRefType;
u32Value2 = 0;
cilCallVirtConstrained:
pBoxCallType = NULL;
derefRefType = 0;
u32Value = GetUnalignedU32(pCIL, &cilOfs);
pCallMethod = MetaData_GetMethodDefFromDefRefOrSpec(pMetaData, u32Value, pMethodDef->pParentType->ppClassTypeArgs, pMethodDef->ppMethodTypeArgs);
if (pCallMethod->isFilled == 0) {
tMD_TypeDef *pTypeDef;
pTypeDef = MetaData_GetTypeDefFromMethodDef(pCallMethod);
MetaData_Fill_TypeDef(pTypeDef, NULL, NULL);
}
if (u32Value2 != 0) {
// There is a 'constrained' prefix
tMD_TypeDef *pConstrainedType;
pConstrainedType = MetaData_GetTypeDefFromDefRefOrSpec(pMetaData, u32Value2, pMethodDef->pParentType->ppClassTypeArgs, pMethodDef->ppMethodTypeArgs);
if (TYPE_ISINTERFACE(pCallMethod->pParentType)) {
u32Value2 = 0xffffffff;
// Find the interface that we're dealing with
for (i=0; i<pConstrainedType->numInterfaces; i++) {
if (pConstrainedType->pInterfaceMaps[i].pInterface == pCallMethod->pParentType) {
u32Value2 = pConstrainedType->pInterfaceMaps[i].pVTableLookup[pCallMethod->vTableOfs];
break;
}
}
Assert(u32Value2 != 0xffffffff);
if (pConstrainedType->pVTable[u32Value2]->pParentType == pConstrainedType) {
// This method is implemented on this class, so make it a normal CALL op
op = CIL_CALL;
pCallMethod = pConstrainedType->pVTable[u32Value2];
}
} else {
if (pConstrainedType->isValueType) {
tMD_MethodDef *pImplMethod;
// If pConstraintedType directly implements the call then don't do anything
// otherwise the 'this' pointer must be boxed (BoxedCall)
pImplMethod = pConstrainedType->pVTable[pCallMethod->vTableOfs];
if (pImplMethod->pParentType == pConstrainedType) {
op = CIL_CALL;
pCallMethod = pImplMethod;
} else {
pBoxCallType = pConstrainedType;
}
} else {
// Reference-type, so dereference the PTR to 'this' and use that for the 'this' for the call.
derefRefType = 1;
}
}
}
// Pop stack type for each argument. Don't actually care what these are,
// except the last one which will be the 'this' object type of a non-static method
//printf("Call %s() - popping %d stack args\n", pCallMethod->name, pCallMethod->numberOfParameters);
for (i=0; i<pCallMethod->numberOfParameters; i++) {
pStackType = PopStackType();
}
// the stack type of the 'this' object will now be in stackType (if there is one)
if (METHOD_ISSTATIC(pCallMethod)) {
pStackType = types[TYPE_SYSTEM_OBJECT];
}
MetaData_Fill_TypeDef(pStackType, NULL, NULL);
if (TYPE_ISINTERFACE(pCallMethod->pParentType) && op == CIL_CALLVIRT) {
PushOp(JIT_CALL_INTERFACE);
} else if (pCallMethod->pParentType->pParent == types[TYPE_SYSTEM_MULTICASTDELEGATE]) {
PushOp(JIT_INVOKE_DELEGATE);
} else {
switch (pStackType->stackType)
{
case EVALSTACK_INTNATIVE: // Not really right, but it'll work on 32-bit
case EVALSTACK_O:
if (derefRefType) {
PushOp(JIT_DEREF_CALLVIRT);
} else {
if (pBoxCallType != NULL) {
PushOp(JIT_BOX_CALLVIRT);
PushPTR(pBoxCallType);
} else {
PushOp((op == CIL_CALL)?JIT_CALL_O:JIT_CALLVIRT_O);
}
}
break;
case EVALSTACK_PTR:
case EVALSTACK_VALUETYPE:
if (derefRefType) {
PushOp(JIT_DEREF_CALLVIRT);
} else if (pBoxCallType != NULL) {
PushOp(JIT_BOX_CALLVIRT);
PushPTR(pBoxCallType);
} else {
PushOp(JIT_CALL_PTR);
}
break;
default:
Crash("JITit(): Cannot CALL or CALLVIRT with stack type: %d", pStackType->stackType);
}
}
PushPTR(pCallMethod);
if (pCallMethod->pReturnType != NULL) {
PushStackType(pCallMethod->pReturnType);
}
}
break;
case CIL_BR_S: // unconditional branch
u32Value = (I8)pCIL[cilOfs++];
goto cilBr;
case CIL_BR:
u32Value = GetUnalignedU32(pCIL, &cilOfs);
cilBr:
// Put a temporary CIL offset value into the JITted code. This will be updated later
u32Value = cilOfs + (I32)u32Value;
MayCopyTypeStack();
PushOp(JIT_BRANCH);
PushBranch();
PushU32(u32Value);
// Restore the stack state
RestoreTypeStack(&typeStack, ppTypeStacks[cilOfs]);
break;
case CIL_SWITCH:
// This is the int containing the switch value. Don't care what it is.
PopStackTypeDontCare();
// The number of switch jump targets
i32Value = (I32)GetUnalignedU32(pCIL, &cilOfs);
// Set up the offset from which the jump offsets are calculated
u32Value2 = cilOfs + (i32Value << 2);
PushOpParam(JIT_SWITCH, i32Value);
for (i=0; i<(U32)i32Value; i++) {
// A jump target
u32Value = u32Value2 + (I32)GetUnalignedU32(pCIL, &cilOfs);
PushBranch();
MayCopyTypeStack();
// Push the jump target.
// It is needed to allow the branch offset to be correctly updated later.
PushU32(u32Value);
}
break;
case CIL_BRFALSE_S:
case CIL_BRTRUE_S:
u32Value = (I8)pCIL[cilOfs++];
u32Value2 = JIT_BRANCH_FALSE + (op - CIL_BRFALSE_S);
goto cilBrFalseTrue;
case CIL_BRFALSE:
case CIL_BRTRUE:
u32Value = GetUnalignedU32(pCIL, &cilOfs);
u32Value2 = JIT_BRANCH_FALSE + (op - CIL_BRFALSE);
cilBrFalseTrue:
PopStackTypeDontCare(); // Don't care what it is
// Put a temporary CIL offset value into the JITted code. This will be updated later
u32Value = cilOfs + (I32)u32Value;
MayCopyTypeStack();
PushOp(u32Value2);
PushBranch();
PushU32(u32Value);
break;
case CIL_BEQ_S:
case CIL_BGE_S:
case CIL_BGT_S:
case CIL_BLE_S:
case CIL_BLT_S:
case CIL_BNE_UN_S:
case CIL_BGE_UN_S:
case CIL_BGT_UN_S:
case CIL_BLE_UN_S:
case CIL_BLT_UN_S:
u32Value = (I8)pCIL[cilOfs++];
u32Value2 = CIL_BEQ_S;
goto cilBrCond;
case CIL_BEQ:
case CIL_BGE:
case CIL_BGT:
case CIL_BLE:
case CIL_BLT:
case CIL_BNE_UN:
case CIL_BGE_UN:
case CIL_BGT_UN:
case CIL_BLE_UN:
case CIL_BLT_UN:
u32Value = GetUnalignedU32(pCIL, &cilOfs);
u32Value2 = CIL_BEQ;
cilBrCond:
pTypeB = PopStackType();
pTypeA = PopStackType();
u32Value = cilOfs + (I32)u32Value;
MayCopyTypeStack();
if ((pTypeA->stackType == EVALSTACK_INT32 && pTypeB->stackType == EVALSTACK_INT32) ||
(pTypeA->stackType == EVALSTACK_O && pTypeB->stackType == EVALSTACK_O)) {
PushOp(JIT_BEQ_I32I32 + (op - u32Value2));
} else if (pTypeA->stackType == EVALSTACK_INT64 && pTypeB->stackType == EVALSTACK_INT64) {
PushOp(JIT_BEQ_I64I64 + (op - u32Value2));
} else if (pTypeA->stackType == EVALSTACK_F32 && pTypeB->stackType == EVALSTACK_F32) {
PushOp(JIT_BEQ_F32F32 + (op - u32Value2));
} else if (pTypeA->stackType == EVALSTACK_F64 && pTypeB->stackType == EVALSTACK_F64) {
PushOp(JIT_BEQ_F64F64 + (op - u32Value2));
} else {
Crash("JITit(): Cannot perform conditional branch on stack types: %d and %d", pTypeA->stackType, pTypeB->stackType);
}
PushBranch();
PushU32(u32Value);
break;
case CIL_ADD_OVF:
case CIL_ADD_OVF_UN:
case CIL_MUL_OVF:
case CIL_MUL_OVF_UN:
case CIL_SUB_OVF:
case CIL_SUB_OVF_UN:
u32Value = (CIL_ADD_OVF - CIL_ADD) + (JIT_ADD_I32I32 - JIT_ADD_OVF_I32I32);
goto cilBinaryArithOp;
case CIL_ADD:
case CIL_SUB:
case CIL_MUL:
case CIL_DIV:
case CIL_DIV_UN:
case CIL_REM:
case CIL_REM_UN:
case CIL_AND:
case CIL_OR:
case CIL_XOR:
u32Value = 0;
cilBinaryArithOp:
pTypeB = PopStackType();
pTypeA = PopStackType();
if (pTypeA->stackType == EVALSTACK_INT32 && pTypeB->stackType == EVALSTACK_INT32) {
PushOp(JIT_ADD_I32I32 + (op - CIL_ADD) - u32Value);
PushStackType(types[TYPE_SYSTEM_INT32]);
} else if (pTypeA->stackType == EVALSTACK_INT64 && pTypeB->stackType == EVALSTACK_INT64) {
PushOp(JIT_ADD_I64I64 + (op - CIL_ADD) - u32Value);
PushStackType(types[TYPE_SYSTEM_INT64]);
} else if (pTypeA->stackType == EVALSTACK_F32 && pTypeB->stackType == EVALSTACK_F32) {
PushOp(JIT_ADD_F32F32 + (op - CIL_ADD) - u32Value);
PushStackType(pTypeA);
} else if (pTypeA->stackType == EVALSTACK_F64 && pTypeB->stackType == EVALSTACK_F64) {
PushOp(JIT_ADD_F64F64 + (op - CIL_ADD) - u32Value);
PushStackType(pTypeA);
} else {
Crash("JITit(): Cannot perform binary numeric operand on stack types: %d and %d", pTypeA->stackType, pTypeB->stackType);
}
break;
case CIL_NEG:
case CIL_NOT:
pTypeA = PopStackType();
if (pTypeA->stackType == EVALSTACK_INT32) {
PushOp(JIT_NEG_I32 + (op - CIL_NEG));
PushStackType(types[TYPE_SYSTEM_INT32]);
} else if (pTypeA->stackType == EVALSTACK_INT64) {
PushOp(JIT_NEG_I64 + (op - CIL_NEG));
PushStackType(types[TYPE_SYSTEM_INT64]);
} else {
Crash("JITit(): Cannot perform unary operand on stack types: %d", pTypeA->stackType);
}
break;
case CIL_SHL:
case CIL_SHR:
case CIL_SHR_UN:
PopStackTypeDontCare(); // Don't care about the shift amount
pTypeA = PopStackType(); // Do care about the value to shift
if (pTypeA->stackType == EVALSTACK_INT32) {
PushOp(JIT_SHL_I32 - CIL_SHL + op);
PushStackType(types[TYPE_SYSTEM_INT32]);
} else if (pTypeA->stackType == EVALSTACK_INT64) {
PushOp(JIT_SHL_I64 - CIL_SHL + op);
PushStackType(types[TYPE_SYSTEM_INT64]);
} else {
Crash("JITit(): Cannot perform shift operation on type: %s", pTypeA->name);
}
break;
// Conversion operations
{
U32 toType;
U32 toBitCount;
U32 convOpOffset;
case CIL_CONV_I1:
case CIL_CONV_OVF_I1: // Fix this later - will never overflow
case CIL_CONV_OVF_I1_UN: // Fix this later - will never overflow
toBitCount = 8;
toType = TYPE_SYSTEM_SBYTE;
goto cilConvInt32;
case CIL_CONV_I2:
case CIL_CONV_OVF_I2: // Fix this later - will never overflow
case CIL_CONV_OVF_I2_UN: // Fix this later - will never overflow
toBitCount = 16;
toType = TYPE_SYSTEM_INT16;
goto cilConvInt32;
case CIL_CONV_I4:
case CIL_CONV_OVF_I4: // Fix this later - will never overflow
case CIL_CONV_OVF_I4_UN: // Fix this later - will never overflow
case CIL_CONV_I: // Only on 32-bit
case CIL_CONV_OVF_I_UN: // Only on 32-bit; Fix this later - will never overflow
toBitCount = 32;
toType = TYPE_SYSTEM_INT32;
cilConvInt32:
convOpOffset = JIT_CONV_OFFSET_I32;
goto cilConv;
case CIL_CONV_U1:
case CIL_CONV_OVF_U1: // Fix this later - will never overflow
case CIL_CONV_OVF_U1_UN: // Fix this later - will never overflow
toBitCount = 8;
toType = TYPE_SYSTEM_BYTE;
goto cilConvUInt32;
case CIL_CONV_U2:
case CIL_CONV_OVF_U2: // Fix this later - will never overflow
case CIL_CONV_OVF_U2_UN: // Fix this later - will never overflow
toBitCount = 16;
toType = TYPE_SYSTEM_UINT16;
goto cilConvUInt32;
case CIL_CONV_U4:
case CIL_CONV_OVF_U4: // Fix this later - will never overflow
case CIL_CONV_OVF_U4_UN: // Fix this later - will never overflow
case CIL_CONV_U: // Only on 32-bit
case CIL_CONV_OVF_U_UN: // Only on 32-bit; Fix this later - will never overflow
toBitCount = 32;
toType = TYPE_SYSTEM_UINT32;
cilConvUInt32:
convOpOffset = JIT_CONV_OFFSET_U32;
goto cilConv;
case CIL_CONV_I8:
case CIL_CONV_OVF_I8: // Fix this later - will never overflow
case CIL_CONV_OVF_I8_UN: // Fix this later - will never overflow
toType = TYPE_SYSTEM_INT64;
convOpOffset = JIT_CONV_OFFSET_I64;
goto cilConv;
case CIL_CONV_U8:
case CIL_CONV_OVF_U8: // Fix this later - will never overflow
case CIL_CONV_OVF_U8_UN: // Fix this later - will never overflow
toType = TYPE_SYSTEM_UINT64;
convOpOffset = JIT_CONV_OFFSET_U64;
goto cilConv;
case CIL_CONV_R4:
toType = TYPE_SYSTEM_SINGLE;
convOpOffset = JIT_CONV_OFFSET_R32;
goto cilConv;
case CIL_CONV_R8:
case CIL_CONV_R_UN:
toType = TYPE_SYSTEM_DOUBLE;
convOpOffset = JIT_CONV_OFFSET_R64;
goto cilConv;
cilConv:
pStackType = PopStackType();
{
U32 opCodeBase;
U32 useParam = 0, param;
// This is the types that the conversion is from.
switch (pStackType->stackType) {
case EVALSTACK_INT64:
opCodeBase = (pStackType == types[TYPE_SYSTEM_INT64])?JIT_CONV_FROM_I64:JIT_CONV_FROM_U64;
break;
case EVALSTACK_INT32:
case EVALSTACK_PTR: // Only on 32-bit
opCodeBase =
(pStackType == types[TYPE_SYSTEM_BYTE] ||
pStackType == types[TYPE_SYSTEM_UINT16] ||
pStackType == types[TYPE_SYSTEM_UINT32] ||
pStackType == types[TYPE_SYSTEM_UINTPTR])?JIT_CONV_FROM_U32:JIT_CONV_FROM_I32;
break;
case EVALSTACK_F64:
opCodeBase = JIT_CONV_FROM_R64;
break;
case EVALSTACK_F32:
opCodeBase = JIT_CONV_FROM_R32;
break;
default:
Crash("JITit() Conv cannot handle stack type %d", pStackType->stackType);
}
// This is the types that the conversion is to.
switch (convOpOffset) {
case JIT_CONV_OFFSET_I32:
useParam = 1;
param = 32 - toBitCount;
break;
case JIT_CONV_OFFSET_U32:
useParam = 1;
// Next line is really (1 << toBitCount) - 1
// But it's done like this to work when toBitCount == 32
param = (((1 << (toBitCount - 1)) - 1) << 1) + 1;
break;
case JIT_CONV_OFFSET_I64:
case JIT_CONV_OFFSET_U64:
case JIT_CONV_OFFSET_R32:
case JIT_CONV_OFFSET_R64:
break;
default:
Crash("JITit() Conv cannot handle convOpOffset %d", convOpOffset);
}
PushOp(opCodeBase + convOpOffset);
if (useParam) {
PushU32(param);
}
}
PushStackType(types[toType]);
break;
}
#ifdef OLD_CONV
case CIL_CONV_OVF_I1:
case CIL_CONV_OVF_I2:
case CIL_CONV_OVF_I4:
u32Value = TYPE_SYSTEM_INT32;
goto convOvf;
case CIL_CONV_OVF_I8:
u32Value = TYPE_SYSTEM_INT64;
goto convOvf;
case CIL_CONV_OVF_U1:
case CIL_CONV_OVF_U2:
case CIL_CONV_OVF_U4:
u32Value = TYPE_SYSTEM_UINT32;
goto convOvf;
case CIL_CONV_OVF_U8:
u32Value = TYPE_SYSTEM_UINT64;
convOvf:
pStackType = PopStackType();
PushOpParam(JIT_CONV_OVF_I1 + (op - CIL_CONV_OVF_I1), pStackType->stackType);
PushStackType(types[u32Value]);
break;
case CIL_CONV_I1:
case CIL_CONV_I2:
case CIL_CONV_I4:
u32Value = TYPE_SYSTEM_INT32;
goto conv1;
case CIL_CONV_I8:
u32Value = TYPE_SYSTEM_INT64;
goto conv1;
case CIL_CONV_R4:
u32Value = TYPE_SYSTEM_SINGLE;
goto conv1;
case CIL_CONV_R8:
u32Value = TYPE_SYSTEM_DOUBLE;
goto conv1;
case CIL_CONV_U4:
u32Value = TYPE_SYSTEM_UINT32;
goto conv1;
case CIL_CONV_U8:
u32Value = TYPE_SYSTEM_UINT64;
conv1:
pStackType = PopStackType();
PushOpParam(JIT_CONV_I1 + (op - CIL_CONV_I1), pStackType->stackType);
PushStackType(types[u32Value]);