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Implement loading and storing of APInt values from memory.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34874 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
2007-03-03 06:18:03 +00:00
parent 28bb83625a
commit 93a2875456
1 changed files with 16 additions and 8 deletions
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24
lib/ExecutionEngine/ExecutionEngine.cpp
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@@ -425,7 +425,7 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
else if (BitWidth <= 64) else if (BitWidth <= 64)
Result.Int64Val = (uint64_t )cast<ConstantInt>(C)->getZExtValue(); Result.Int64Val = (uint64_t )cast<ConstantInt>(C)->getZExtValue();
else else
assert(0 && "Integers with > 64-bits not implemented"); Result.APIntVal = const_cast<APInt*>(&cast<ConstantInt>(C)->getValue());
break; break;
} }
@@ -481,8 +481,12 @@ void ExecutionEngine::StoreValueToMemory(GenericValue Val, GenericValue *Ptr,
Ptr->Untyped[5] = (unsigned char)(TmpVal.Int64Val >> 40); Ptr->Untyped[5] = (unsigned char)(TmpVal.Int64Val >> 40);
Ptr->Untyped[6] = (unsigned char)(TmpVal.Int64Val >> 48); Ptr->Untyped[6] = (unsigned char)(TmpVal.Int64Val >> 48);
Ptr->Untyped[7] = (unsigned char)(TmpVal.Int64Val >> 56); Ptr->Untyped[7] = (unsigned char)(TmpVal.Int64Val >> 56);
} else } else {
assert(0 && "Integer types > 64 bits not supported"); uint64_t *Dest = (uint64_t*)Ptr;
const uint64_t *Src = Val.APIntVal->getRawData();
for (uint32_t i = 0; i < Val.APIntVal->getNumWords(); ++i)
Dest[i] = Src[i];
}
break; break;
} }
Store4BytesLittleEndian: Store4BytesLittleEndian:
@@ -537,8 +541,12 @@ Store4BytesLittleEndian:
Ptr->Untyped[2] = (unsigned char)(TmpVal.Int64Val >> 40); Ptr->Untyped[2] = (unsigned char)(TmpVal.Int64Val >> 40);
Ptr->Untyped[1] = (unsigned char)(TmpVal.Int64Val >> 48); Ptr->Untyped[1] = (unsigned char)(TmpVal.Int64Val >> 48);
Ptr->Untyped[0] = (unsigned char)(TmpVal.Int64Val >> 56); Ptr->Untyped[0] = (unsigned char)(TmpVal.Int64Val >> 56);
} else } else {
assert(0 && "Integer types > 64 bits not supported"); uint64_t *Dest = (uint64_t*)Ptr;
const uint64_t *Src = Val.APIntVal->getRawData();
for (uint32_t i = 0; i < Val.APIntVal->getNumWords(); ++i)
Dest[i] = Src[i];
}
break; break;
} }
Store4BytesBigEndian: Store4BytesBigEndian:
@@ -597,7 +605,7 @@ GenericValue ExecutionEngine::LoadValueFromMemory(GenericValue *Ptr,
((uint64_t)Ptr->Untyped[6] << 48) | ((uint64_t)Ptr->Untyped[6] << 48) |
((uint64_t)Ptr->Untyped[7] << 56); ((uint64_t)Ptr->Untyped[7] << 56);
} else } else
assert(0 && "Integer types > 64 bits not supported"); Result.APIntVal = new APInt(BitWidth, BitWidth/64, (uint64_t*)Ptr);
break; break;
} }
Load4BytesLittleEndian: Load4BytesLittleEndian:
@@ -628,7 +636,7 @@ GenericValue ExecutionEngine::LoadValueFromMemory(GenericValue *Ptr,
} else { } else {
switch (Ty->getTypeID()) { switch (Ty->getTypeID()) {
case Type::IntegerTyID: { case Type::IntegerTyID: {
unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth(); uint32_t BitWidth = cast<IntegerType>(Ty)->getBitWidth();
if (BitWidth <= 8) if (BitWidth <= 8)
Result.Int8Val = Ptr->Untyped[0]; Result.Int8Val = Ptr->Untyped[0];
else if (BitWidth <= 16) { else if (BitWidth <= 16) {
@@ -649,7 +657,7 @@ GenericValue ExecutionEngine::LoadValueFromMemory(GenericValue *Ptr,
((uint64_t)Ptr->Untyped[1] << 48) | ((uint64_t)Ptr->Untyped[1] << 48) |
((uint64_t)Ptr->Untyped[0] << 56); ((uint64_t)Ptr->Untyped[0] << 56);
} else } else
assert(0 && "Integer types > 64 bits not supported"); Result.APIntVal = new APInt(BitWidth, BitWidth/64, (uint64_t*)Ptr);
break; break;
} }
Load4BytesBigEndian: Load4BytesBigEndian: