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[spec] Compact subtyping check in branch rules (WIP)#2174

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rossberg wants to merge 1 commit into
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[spec] Compact subtyping check in branch rules (WIP)#2174
rossberg wants to merge 1 commit into
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cast_sub

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@rossberg
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Remove redundant subtyping premise in cast execution rule, as discussed in #2171.

@f52985, @raoxiaojia, this breaks the implementation of Ref_ok in the AL interpreter, so I could use help from either of you to adapt that.

@raoxiaojia
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Thanks!
@f52985 I'll take a look at this now given the time zone.

raoxiaojia added a commit to raoxiaojia/spectec that referenced this pull request May 26, 2026
raoxiaojia added a commit to raoxiaojia/spectec that referenced this pull request May 26, 2026
raoxiaojia added a commit to raoxiaojia/spectec that referenced this pull request May 26, 2026
@raoxiaojia
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@rossberg I've created #2175 -- can't push on the branch directly.

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Closed in favour of #2175.

@rossberg rossberg closed this May 26, 2026
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