Stackalloc localloc conditional2 - #127980

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AndyAyersMS wants to merge 48 commits into

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AndyAyersMS:StackallocLocallocConditional2

Commits on Feb 5, 2025

proof of concept
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c5cefd3
fix flags
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4d9f1bc
enable by default (for now)
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e3c4019
enable for array allocations in loops too
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23b4261
add missing bit of code
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d096d63
add handler check; fix elem size type
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032f724

Commits on Feb 6, 2025

fix zero init logic
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1e088c4

Commits on Feb 20, 2025

merge main
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d572dec

Commits on Feb 21, 2025

update post merge, cleanup a bit
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526ba2f
pad localloc array size as if it was on heap; handle align8
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9e7cf8e

Commits on Feb 22, 2025

don't allow localloc for gc type arrays
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e247123
Merge branch 'main' into StackallocLocalloc
AndyAyersMS
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f858501

Commits on Feb 23, 2025

simple runtime check for stack alloc vs heap alloc
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f421343
make new call instead of trying to hack up the old one
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45f648e

Commits on Feb 24, 2025

Merge branch 'main' into StackallocLocalloc
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66a8ddd

Commits on Feb 25, 2025

Commits on May 8, 2026

Merge remote-tracking branch 'upstream/main' into StackallocLocallocConditional2
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7c7ff33
Fix MorphNewArrNodeIntoStackAlloc body to match merged signature

AndyAyersMS
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Copilot
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7cc123c
codegenwasm: honor GTF_LCLHEAP_MUSTINIT in genLclHeap

AndyAyersMS
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cf5063e
Add Compiler::gtMustZeroLocalloc helper and use it at LCLHEAP sites

AndyAyersMS
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ad2add4

Commits on May 9, 2026

Remove unused locals after merge regression

AndyAyersMS
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62f33f4
Fix off-by-one in stack-array localloc size round-up

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47f47fe
Restore variable-length newarr admission for localloc dispatch

AndyAyersMS
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f1454bc
Keep localloc'd stack arrays only possibly-stack-pointing for GC tracking

AndyAyersMS
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e3fcb61
Validate length before stack-array localloc to avoid memory corruption

AndyAyersMS
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0c3e303
Apply jit-format --fix --untidy

AndyAyersMS
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0b27c02
Use length's actual type for stack-array localloc length check

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ebd2e51
Add regression tests for variable-length stack-array localloc

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5dee83b
Skip localloc dispatch when newarr result is unused

AndyAyersMS
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25128b6

Commits on May 10, 2026

Merge branch 'main' into StackallocLocallocConditional2
AndyAyersMS
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cf44e72

Commits on May 11, 2026

Add per-frame budget for conditional stack allocations

AndyAyersMS
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739a362
Address PR #127980 review feedback

AndyAyersMS
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1993d41

Commits on Jun 26, 2026

Commits on Jun 28, 2026

Preserve heap possibility for conditional localloc

AndyAyersMS
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82e532f

Commits on Jun 29, 2026

Merge remote-tracking branch 'origin/main' into StackallocLocallocConditional2-local
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3e1e064

Commits on Jun 30, 2026

Address conditional localloc feedback

AndyAyersMS
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c0c7b99
Merge origin/main into conditional localloc branch

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b78e2e2
Route in-loop arrays through conditional localloc

AndyAyersMS
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da912d4

Commits on Jul 1, 2026

Fix conditional localloc CI failures

AndyAyersMS
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00be573
Fix conditional localloc expansion iteration

AndyAyersMS
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6f9e64d
Fix conditional localloc replacement type

AndyAyersMS
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2b291b4

Commits on Jul 2, 2026

Merge remote-tracking branch 'upstream/main' into StackallocLocallocConditional2-local
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2a86206

Commits on Jul 4, 2026

Merge remote-tracking branch 'upstream/main' into StackallocLocallocConditional2-local
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1558b91