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Disallow widening for explicit tailcalls #55989

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merged 3 commits into from
Jul 21, 2021

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jakobbotsch
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It is a runtime detail that the managed calling convention widens return
values, so only allow this behavior for opportunistic tailcalls.

Fix #55253

It is a runtime detail that the managed calling convention widens return
values, so only allow this behavior for opportunistic tailcalls.

Fix dotnet#55253
@dotnet-issue-labeler dotnet-issue-labeler bot added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 20, 2021
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/azp run runtime-coreclr jitstress

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Failure seems to be same as #46419 (comment) so will merge.

@jakobbotsch jakobbotsch merged commit 94a8430 into dotnet:main Jul 21, 2021
@jakobbotsch jakobbotsch deleted the fix-55253-2 branch July 21, 2021 09:29
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