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Add explicit null-check for tailcalls to VSD - #62719
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ghost
commented
Dec 13, 2021
Tagging subscribers to this area: @JulieLeeMSFT Issue DetailsThere is already a comment that this is necessary, but it is only being
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There is already a comment that this is necessary, but it is only being done for x86 tailcalls via jit helper. Do it for normal tailcalls to VSD as well. Fixdotnet#61486
jakobbotsch
commented
Dec 13, 2021
MemberAuthor
/azp run runtime-coreclr jitstress, runtime-coreclr outerloop |
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Azure Pipelines successfully started running 2 pipeline(s). |
jakobbotsch
commented
Dec 13, 2021
MemberAuthor
For ARM64 this adds 4 bytes to every VSD tail call while on x64 it adds 2 bytes. Diffs showing the size increase. |
EgorBo
approved these changes
Dec 13, 2021
jakobbotsch
commented
Dec 13, 2021
MemberAuthor
jkotas
approved these changes
Dec 13, 2021
k15tfu
commented
Dec 14, 2021
Contributor
Hi! Do you plan to back port this fix to 6.0? |
jakobbotsch
commented
Dec 14, 2021
MemberAuthor
@k15tfu Yes, I think this is a good candidate for backporting. |
jakobbotsch
commented
Dec 14, 2021
MemberAuthor
/backport to release/6.0 |
Contributor
Started backporting to release/6.0: https://github.com/dotnet/runtime/actions/runs/1577668274 |
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There is already a comment that this is necessary, but it is only being
done for x86 tailcalls via jit helper. Do it for normal tailcalls to VSD
as well.
Fix#61486