Disable poisoning for large structs #61589
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For very large structs (> 64K in size) poisoning could end up generating instructions requiring larger local var offsets than we can handle. This hits IMPL_LIMIT that throws InvalidProgramException. Turn off poisoning for larger structs that require more than 16 movs to also avoid the significant code bloat by the singular movs. This is a less risky version of dotnet#61521 for backporting to .NET 6. Fix dotnet#60852
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Tagging subscribers to this area: @JulieLeeMSFT Issue DetailsFor very large structs (> 64K in size) poisoning could end up generating This is a less risky version of #61521 for backporting to .NET 6. Fix #60852
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cc @dotnet/jit-contrib |
EgorBo
approved these changes
Nov 15, 2021
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Failure is #61548. |
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/backport to release/6.0 |
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Started backporting to release/6.0: https://github.com/dotnet/runtime/actions/runs/1462877549 |
This was referenced Nov 29, 2021
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For very large structs (> 64K in size) poisoning could end up generating
instructions requiring larger local var offsets than we can handle. This
hits IMPL_LIMIT that throws InvalidProgramException. Turn off poisoning
for larger structs that require more than 16 movs to also avoid the
significant code bloat by the singular movs.
This is a less risky version of #61521 for backporting to .NET 6.
Fix #60852