Store compact cache indexes in bytecode instructions instead of raw pointers to the executable cache vectors. This keeps the instruction stream independent from heap addresses and removes pointer fixups when materializing cached bytecode. Resolve the mutable cache pointers at execution time from the current Executable. Bytecode test expectations are updated for the smaller cache operands and resulting instruction offsets.
29 lines
945 B
Text
29 lines
945 B
Text
$b4147902 optional-chain-base-identifier.js:1:1
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Registers: 9
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Blocks: 3
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Constants:
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[0] = Int32(44)
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[1] = Undefined
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block0:
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[ 0] NewObject dst:reg5
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[ 10] NewObject dst:reg6
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[ 20] InitObjectLiteralProperty object:reg6, `b`, src:Int32(44), shape_cache_index:1, property_slot:0
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[ 38] CacheObjectShape object:reg6
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[ 48] InitObjectLiteralProperty object:reg5, `a`, src:reg6, shape_cache_index:0, property_slot:0
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[ 60] CacheObjectShape object:reg5
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[ 70] SetGlobal `obj`, src:reg5
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[ 80] Mov dst:reg5, src:Undefined
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[ 90] GetGlobal dst:reg7, `obj`
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[ a0] GetById dst:reg8, base:reg7, `a` (obj.a)
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[ b8] Mov2 dst1:reg5, src1:reg7, dst2:reg6, src2:reg8
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[ d0] JumpNullish condition:reg6, true_target:block1, false_target:block2
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block1:
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[ e0] Mov dst:reg6, src:Undefined
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[ f0] End value:reg6
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block2:
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[ f8] Mov dst:reg5, src:reg6
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[ 108] GetById dst:reg6, base:reg6, `b`
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[ 120] End value:reg6
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