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New align structure

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This commit is contained in:
Vsevolod Livinskiy
2015-02-20 10:01:23 +03:00
parent 8090285d42
commit 5302cfe062
1 changed files with 24 additions and 13 deletions
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37
cbackend.cpp
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@@ -1898,7 +1898,7 @@ void CWriter::writeInstComputationInline(llvm::Instruction &I) {
// If this is a non-trivial bool computation, make sure to truncate down to
// a 1 bit value. This is important because we want "add i1 x, y" to return
// "0" when x and y are true, not "2" for example.
Out << "\n/* Tree\n" << I << "\n*/";
// Out << "\n/* Tree\n" << I << "\n*/";
bool NeedBoolTrunc = false;
if (I.getType() == llvm::Type::getInt1Ty(I.getContext()) &&
@@ -2795,8 +2795,14 @@ void CWriter::printModuleTypes() {
}
for (unsigned i = 0, e = IntegerTypes.size(); i != e; ++i) {
llvm::IntegerType *IT = IntegerTypes[i];
Out << "bitwidth: " << IT->getIntegerBitWidth () << "|" << IsVolatile[i] << "|" << Alignment[i] << ";\n";
llvm::IntegerType *IT = IntegerTypes[i];
if (IT->getIntegerBitWidth() <= 128 || Alignment[i] == 0)
continue;
Out << "typedef struct __attribute__ ((packed, aligned(" << Alignment[i] << "))) {\n ";
printType(Out, IT, false, "data");
Out << ";\n";
Out << "} iN_" << IT->getIntegerBitWidth() << "_align_" << Alignment[i] << ";\n";
}
Out << '\n';
@@ -4337,21 +4343,26 @@ void CWriter::writeMemoryAccess(llvm::Value *Operand, llvm::Type *OperandType,
bool IsUnaligned = Alignment &&
Alignment < TD->getABITypeAlignment(OperandType);
llvm::IntegerType *ITy = llvm::dyn_cast<llvm::IntegerType>(OperandType);
if (!IsUnaligned)
Out << '*';
if (IsVolatile || IsUnaligned) {
Out << "((";
if (IsUnaligned)
Out << "struct __attribute__ ((packed, aligned(" << Alignment << "))) {";
printType(Out, OperandType, false, IsUnaligned ? "data" : "volatile*");
if (IsUnaligned) {
Out << "; } ";
if (IsVolatile) Out << "volatile ";
Out << "*";
if (IsUnaligned && ITy && (ITy->getBitWidth() > 128))
Out << "iN_" << ITy->getBitWidth() << "_align_" << Alignment << " *)";
else {
if (IsUnaligned)
Out << "struct __attribute__ ((packed, aligned(" << Alignment << "))) {";
printType(Out, OperandType, false, IsUnaligned ? "data" : "volatile*");
if (IsUnaligned) {
Out << "; } ";
if (IsVolatile) Out << "volatile ";
Out << "*";
}
Out << ")";
}
Out << ")";
}
writeOperand(Operand);
if (IsVolatile || IsUnaligned) {
@@ -4362,7 +4373,7 @@ void CWriter::writeMemoryAccess(llvm::Value *Operand, llvm::Type *OperandType,
}
void CWriter::visitLoadInst(llvm::LoadInst &I) {
Out << "\n/* Tree\n" << I << "\n*/";
// Out << "\n/* Tree\n" << I << "\n*/";
llvm::VectorType *VT = llvm::dyn_cast<llvm::VectorType>(I.getType());
if (VT != NULL) {
Out << "__load<" << I.getAlignment() << ">(";