diff options
Diffstat (limited to 'utils')
| -rw-r--r-- | utils/TableGen/CodeGenRegisters.cpp | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/utils/TableGen/CodeGenRegisters.cpp b/utils/TableGen/CodeGenRegisters.cpp index 06df7ec..011f4b7 100644 --- a/utils/TableGen/CodeGenRegisters.cpp +++ b/utils/TableGen/CodeGenRegisters.cpp @@ -50,16 +50,29 @@ std::string CodeGenSubRegIndex::getQualifiedName() const { void CodeGenSubRegIndex::updateComponents(CodeGenRegBank &RegBank) { if (!TheDef) return; + std::vector<Record*> Comps = TheDef->getValueAsListOfDefs("ComposedOf"); - if (Comps.empty()) - return; - if (Comps.size() != 2) - throw TGError(TheDef->getLoc(), "ComposedOf must have exactly two entries"); - CodeGenSubRegIndex *A = RegBank.getSubRegIdx(Comps[0]); - CodeGenSubRegIndex *B = RegBank.getSubRegIdx(Comps[1]); - CodeGenSubRegIndex *X = A->addComposite(B, this); - if (X) - throw TGError(TheDef->getLoc(), "Ambiguous ComposedOf entries"); + if (!Comps.empty()) { + if (Comps.size() != 2) + throw TGError(TheDef->getLoc(), "ComposedOf must have exactly two entries"); + CodeGenSubRegIndex *A = RegBank.getSubRegIdx(Comps[0]); + CodeGenSubRegIndex *B = RegBank.getSubRegIdx(Comps[1]); + CodeGenSubRegIndex *X = A->addComposite(B, this); + if (X) + throw TGError(TheDef->getLoc(), "Ambiguous ComposedOf entries"); + } + + std::vector<Record*> Parts = + TheDef->getValueAsListOfDefs("CoveringSubRegIndices"); + if (!Parts.empty()) { + if (Parts.size() < 2) + throw TGError(TheDef->getLoc(), + "CoveredBySubRegs must have two or more entries"); + SmallVector<CodeGenSubRegIndex*, 8> IdxParts; + for (unsigned i = 0, e = Parts.size(); i != e; ++i) + IdxParts.push_back(RegBank.getSubRegIdx(Parts[i])); + RegBank.addConcatSubRegIndex(IdxParts, this); + } } void CodeGenSubRegIndex::cleanComposites() { |