Matt Arsenault eb75af223f Reapply "SystemZ: Fold copy of vector immediate to gr128" (#91099) ...

This reverts commit a415b4dfcc.

Modify the instruction in place to transform it into a REG_SEQUENCE,
which is what other implementations of foldImmediate do. Also start
erasing the def instruction if there are no other uses.

Fixes #91110.

2024-05-06 10:00:20 +02:00

6.5 KiB

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