[PATCH] D145218: PHI-def LIveInterval's LaneMask can be calculated by subranges LaneMask when Reg has SubRanges.

[michael_zhang via Phabricator via llvm-commits]

Michael-Zhang-21 added a comment.

In D145218#4399271 <https://reviews.llvm.org/D145218#4399271>, @arsenm wrote:

> Needs testcase

ok. As the testcase is found on our own target, I need time to prepare some testcases on open targets.


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