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Add SIL instructions to generate pack indices

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This commit is contained in:
John McCall
2023-01-19 03:24:31 -05:00
parent 4391d159b7
commit 374c202b99
20 changed files with 684 additions and 10 deletions
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9
lib/SILOptimizer/Utils/SILInliner.cpp
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@@ -810,6 +810,15 @@ InlineCost swift::instructionInlineCost(SILInstruction &I) {
case SILInstructionKind::ProjectBlockStorageInst:
return InlineCost::Free;
// dynamic_pack_index is free. The other pack-indexing instructions
// are just adds of values that should be trivially dynamically
// available; that's cheap enough to still consider free under the
// same principle as typed GEPs.
case SILInstructionKind::DynamicPackIndexInst:
case SILInstructionKind::PackPackIndexInst:
case SILInstructionKind::ScalarPackIndexInst:
return InlineCost::Free;
// Aggregates are exploded at the IR level; these are effectively no-ops.
case SILInstructionKind::TupleInst:
case SILInstructionKind::StructInst: