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[tblgen] Compress CompositeSequences to 1/8th of its size. NFCI.

This commit is contained in:
Benjamin Kramer 2022-02-24 19:30:50 +01:00
parent 2aa1c6fca1
commit dc7a624e38
1 changed files with 11 additions and 5 deletions
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16
llvm/utils/TableGen/RegisterInfoEmitter.cpp
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@ -814,12 +814,14 @@ RegisterInfoEmitter::emitComposeSubRegIndexLaneMask(raw_ostream &OS,
OS << " // Sequence " << Idx << "\n";
Idx += Sequence.size() + 1;
}
auto *IntType = getMinimalTypeForRange(*std::max_element(
SubReg2SequenceIndexMap.begin(), SubReg2SequenceIndexMap.end()));
OS << " };\n"
" static const MaskRolOp *const CompositeSequences[] = {\n";
" static const "
<< IntType << " CompositeSequences[] = {\n";
for (size_t i = 0, e = SubRegIndices.size(); i != e; ++i) {
OS << " ";
unsigned Idx = SubReg2SequenceIndexMap[i];
OS << format("&LaneMaskComposeSequences[%u]", Idx);
OS << SubReg2SequenceIndexMap[i];
if (i+1 != e)
OS << ",";
OS << " // to " << SubRegIndices[i].getName() << "\n";
@ -832,7 +834,9 @@ RegisterInfoEmitter::emitComposeSubRegIndexLaneMask(raw_ostream &OS,
" --IdxA; assert(IdxA < " << SubRegIndices.size()
<< " && \"Subregister index out of bounds\");\n"
" LaneBitmask Result;\n"
" for (const MaskRolOp *Ops = CompositeSequences[IdxA]; Ops->Mask.any(); ++Ops) {\n"
" for (const MaskRolOp *Ops =\n"
" &LaneMaskComposeSequences[CompositeSequences[IdxA]];\n"
" Ops->Mask.any(); ++Ops) {\n"
" LaneBitmask::Type M = LaneMask.getAsInteger() & Ops->Mask.getAsInteger();\n"
" if (unsigned S = Ops->RotateLeft)\n"
" Result |= LaneBitmask((M << S) | (M >> (LaneBitmask::BitWidth - S)));\n"
@ -849,7 +853,9 @@ RegisterInfoEmitter::emitComposeSubRegIndexLaneMask(raw_ostream &OS,
" --IdxA; assert(IdxA < " << SubRegIndices.size()
<< " && \"Subregister index out of bounds\");\n"
" LaneBitmask Result;\n"
" for (const MaskRolOp *Ops = CompositeSequences[IdxA]; Ops->Mask.any(); ++Ops) {\n"
" for (const MaskRolOp *Ops =\n"
" &LaneMaskComposeSequences[CompositeSequences[IdxA]];\n"
" Ops->Mask.any(); ++Ops) {\n"
" LaneBitmask::Type M = LaneMask.getAsInteger();\n"
" if (unsigned S = Ops->RotateLeft)\n"
" Result |= LaneBitmask((M >> S) | (M << (LaneBitmask::BitWidth - S)));\n"