[llvm] [llvm][CodeGen] Resolve issues when updating live intervals in window scheduler (PR #101945)

[Hua Tian via llvm-commits]

=?utf-8?b?4oCcYWtpcmF0aWFu4oCd?= <akiratian at tencent.com>
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In-Reply-To: <llvm.org/llvm/llvm-project/pull/101945 at github.com>


huaatian wrote:




> I'm surprised this is enough to update everything

This patch only adds the MBB information to the maps. 
In the window scheduler, we have already call the repairIntervalsInRange() interface to fix the missing live interval information. 
The issue occurred because the live interval information corresponding to the newly generated code after pipeliner scheduling was corrupted. 
By simply adding the MBB information, the repairIntervalsInRange() interface will no longer fail.

https://github.com/llvm/llvm-project/pull/101945