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Make SubRegIndex size mandatory, following r183020.

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This also makes TableGen able to compute sizes/offsets of synthesized
indices representing tuples.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183061 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ahmed Bougacha
2013-05-31 23:45:26 +00:00
parent cd8e3c4dcf
commit 23ed37a6b7
14 changed files with 74 additions and 54 deletions
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15
utils/TableGen/CodeGenRegisters.cpp
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@@ -1092,11 +1092,24 @@ getConcatSubRegIndex(const SmallVector<CodeGenSubRegIndex*, 8> &Parts) {
// None exists, synthesize one.
std::string Name = Parts.front()->getName();
// Determine whether all parts are contiguous.
bool isContinuous = true;
unsigned Size = Parts.front()->Size;
unsigned LastOffset = Parts.front()->Offset;
unsigned LastSize = Parts.front()->Size;
for (unsigned i = 1, e = Parts.size(); i != e; ++i) {
Name += '_';
Name += Parts[i]->getName();
Size += Parts[i]->Size;
if (Parts[i]->Offset != (LastOffset + LastSize))
isContinuous = false;
LastOffset = Parts[i]->Offset;
LastSize = Parts[i]->Size;
}
return Idx = createSubRegIndex(Name, Parts.front()->getNamespace());
Idx = createSubRegIndex(Name, Parts.front()->getNamespace());
Idx->Size = Size;
Idx->Offset = isContinuous ? Parts.front()->Offset : -1;
return Idx;
}
void CodeGenRegBank::computeComposites() {