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1aeb08025038b8810118a4871c2894de54960dac
ladybird/Tests/LibJS/Bytecode/expected
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Andreas Kling c1bc0cdfa9 LibJS: Allocate local variable indices in source order 
The scope collector stored identifier_groups and variables in
HashMaps and then sorted them alphabetically before assigning local
register indices. The sorts existed only because HashMap iteration
order is non-deterministic; alphabetical was a stable choice for
comparing bytecode against the now-removed C++ port.

Switch both maps to indexmap::IndexMap so iteration follows the order
of first reference (= source order), and drop the alphabetical sorts.
Local indices now reflect declaration order, which matches what shows
up in bytecode dumps and is easier to read alongside the source.

Add a focused bytecode test using zebra/yak/aardvark to pin the new
allocation order; existing tests using let/var declarations have
their local indices renumbered to match.
2026-04-27 08:04:11 +02:00
..
annex-b-function-in-if.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
annexb-function-existing-var.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
argument-postfix-self-move.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
argument-variables.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
arguments-with-arguments-fn.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
assign-to-argument-no-tdz.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
assign-to-let-variable-tdz.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
assign-to-parameter.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
async-await-in-try-catch.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
async-await.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
async-generator-yield-await.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
async-generator-yield.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
async-return-bare.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
baseline.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
bigint-binary-literal-fold.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
bigint-constant-folding.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
bigint-large-constant-folding.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
bigint-truthiness.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
bitwise-numeric-preconvert.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
block-function-declaration-order.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
block-scoped-function-no-tdz.txt
LibJS: Skip preserving zero-argument call callees
2026-04-13 18:29:43 +02:00
block-scoping.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
call-spread-register-order.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
captured-variables.txt
LibJS: Skip preserving zero-argument call callees
2026-04-13 18:29:43 +02:00
catch-scope-boundary.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
chained-member-call.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
class-computed-field-lhs-name.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
class-computed-key.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
class-environment.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
class-lhs-name-no-createvariable.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
class-literal-fields.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
computed-compound-assign-register-reuse.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
computed-member-access.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
computed-member-compound-assign.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
computed-string-object-literal.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
computed-string-to-ById.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
computed-update-register-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
condition-dead-code-elim.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
conditional-register-order.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
const-assignment-no-extra-tdz.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
const-fold-exponentiation.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
const-fold-template-literals.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
constant-fold-large-string-to-number.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
constant-fold-string-to-number.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
default-param-self-reference.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
delete-expression-register.txt
LibJS: Allocate local variable indices in source order
2026-04-27 08:04:11 +02:00
delete-super-eval-order.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
delete-super-property.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
destructure-array-rest.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
destructuring-assignment-in-logical-and.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
destructuring-assignment.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
destructuring-let-compound-assign.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
destructuring-no-base-identifier.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
destructuring-param-no-param-expressions.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
do-while-register-allocation.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
double-constant-deduplication.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
eval-prevents-locals.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
eval-same-function.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
eval-scope-optimization.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
expression-identifier-number-format.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-in-block-order.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-in-lexical-scope.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
for-in-object-property-iterator-next.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-in-of-lhs-patterns.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-in-register-lifetime.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-in-var-function-lhs-name.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-loop-break-after-if-continue.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-loop-scoping.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
for-of-cond-rhs-block-order.txt
LibJS: Allocate local variable indices in source order
2026-04-27 08:04:11 +02:00
for-of-continue-with-block-scope.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-of-iteration-env-capacity.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
for-of-iterator-close.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-of-rhs-precedence.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
for-try-finally-continue.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
function-decl-source-order.txt
LibJS: Build functions_to_initialize in source order
2026-04-27 08:04:11 +02:00
generator-yield-call.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
generator-yield-finally.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
generator-yield-star.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
generator-yield.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
global-variables.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
if-else-register-lifetime.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
indexed-append-guards.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
invalid-lhs-assignment-no-dead-code.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
invalid-lhs-forin-no-dead-code.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
lexical-env-teardown.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
local-source-order.txt
LibJS: Allocate local variable indices in source order
2026-04-27 08:04:11 +02:00
local-variables.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
logical-assignment-register-order.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
logical-constant-folding.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
logical-or-in-if-condition.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
logical-or-preferred-dst.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
mov-merging.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
named-class-expression-no-lhs-name-leak.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
named-function-expression.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
nested-for-loop-completion.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
nested-function-decl-source-order.txt
LibJS: Allocate local variable indices in source order
2026-04-27 08:04:11 +02:00
nested-member-base-identifier.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
nested-try-finally-continue.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
numeric-class-field-name.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
numeric-getter-no-lhs-name.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
numeric-index-object-literal.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
numeric-property-key.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
object-rest-computed-key.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
optional-chain-base-identifier.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
optional-chain.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
parameter-createvariable-order.txt
LibJS: Skip preserving zero-argument call callees
2026-04-13 18:29:43 +02:00
postfix-increment-private-member.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
postfix-update-in-logical-and.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
private-identifier-access-patterns.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
private-logical-assignment-register-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
private-method-call-description.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
regex-literals.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
resolve-this-caching.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
right-shift-by-zero.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
sequential-try-blocks.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
string-from-char-code-builtin.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
string-prototype-char-at-builtin.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
super-call-spread-register-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-computed-eval-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-computed-string-to-id.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-constructor-call.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-evaluation-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-for-of-resolve-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-length-access.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-method-call-order.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
super-optional-call-this.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
switch-completion-value.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
switch-local-only-let.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
switch-scoping.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
switch-with-block-scope-return.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
tagged-template-base-identifier.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
tagged-template-if-register-order.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
this-base-identifier.txt
LibJS: Preserve source positions in bytecode source maps
2026-04-22 22:34:54 +02:00
try-catch-completion-ordering.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
try-catch-finally-register.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
try-catch-scoping.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
try-catch-terminated.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
try-finally-continue.txt
LibJS: Make bytecode register allocator O(1)
2026-04-21 13:59:55 +02:00
try-finally.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
update-member-expression.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
using-declaration-non-local-env.txt
LibJS: Improve bytecode executable dump format
2026-03-20 00:51:23 -05:00
var-binding-access.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
var-env-capacity-with-param-expressions.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
var-hoisting-tdz.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
var-init-in-param-body-scope.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
var-shadow-in-default-param.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
with-return.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00
with-statement.txt
LibJS: Drop dead entry GetLexicalEnvironment loads
2026-04-13 18:29:43 +02:00