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Register numbers are not part of the syntax of JIT IR, so it does not need to be compared for the purpose of this function. At the same time we can hit asserts for nodes that aren't multi-reg nodes when we try to ask for the second register.

Fix #110316

Register numbers are not part of the syntax of JIT IR, so it does not
need to be compared for the purpose of this function. At the same time
we can hit asserts for nodes that aren't multi-reg nodes.

Fix dotnet#110316
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PTAL @dotnet/jit-contrib

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@jakobbotsch jakobbotsch merged commit f377332 into dotnet:main Dec 10, 2024
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@jakobbotsch jakobbotsch deleted the fix-110316 branch December 10, 2024 16:42
hez2010 pushed a commit to hez2010/runtime that referenced this pull request Dec 14, 2024
…110535)

Register numbers are not part of the syntax of JIT IR, so it does not
need to be compared for the purpose of this function. At the same time
we can hit asserts for nodes that aren't multi-reg nodes.

Fix dotnet#110316
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[Fuzzlyn] JIT: Assertion failed 'IsMultiRegNode()' during 'Head and tail merge'

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