Florian Hahn 7c0089d735
[Matrix] Check if iterator is at beginning of BB in optimizeTranspose.
If an instruction at the beginning of a block is erased,  this may
trigger crash due to dereferencing an invalid iterator.

Check if II is at the end before dereferencing it.

Reviewed By: thegameg

Differential Revision: https://reviews.llvm.org/D127736
2022-06-14 21:37:02 +01:00
..
2022-04-04 10:19:51 +02:00
2022-04-05 18:48:23 -07:00