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implementing shifting of literal integers

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21336 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-04-19 01:17:35 +00:00
parent b9266f880a
commit 577057faaa
2 changed files with 16 additions and 0 deletions
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14
utils/TableGen/Record.cpp
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@ -297,6 +297,20 @@ Init *BitsInit::resolveReferences(Record &R) {
return this; return this;
} }
Init *IntInit::getBinaryOp(BinaryOp Op, Init *RHS) {
IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
if (RHSi == 0) return 0;
int NewValue;
switch (Op) {
case SHL: NewValue = Value << RHSi->getValue(); break;
case SRA: NewValue = Value >> RHSi->getValue(); break;
case SRL: NewValue = (unsigned)Value >> (unsigned)RHSi->getValue(); break;
}
return new IntInit(NewValue);
}
Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) { Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsInit *BI = new BitsInit(Bits.size()); BitsInit *BI = new BitsInit(Bits.size());

2
utils/TableGen/Record.h
View File

@ -567,6 +567,8 @@ public:
} }
virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits); virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
virtual Init *getBinaryOp(BinaryOp Op, Init *RHS);
virtual void print(std::ostream &OS) const { OS << Value; } virtual void print(std::ostream &OS) const { OS << Value; }
}; };