[AMDGPU][SIInsertWaitcnts] Fix iota_range assertion when OtherMarks is empty in mergeAsyncMarks()#193499

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arsenm merged 10 commits into

xiaohuguo2023:fix/si-insert-waitcnts-87717bf9

May 1, 2026

Commits on Apr 30, 2026

Address review feed back:
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Commits on May 1, 2026

restore && and add MergeCount == 0 guard after padding
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Address review: remove input successors and simplify memoperands
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Replace non-ASCII and change -mtriple=amdgcn to -mtriple=amdgcn-amd-amdhsa in MIR
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