3 Commits

Author SHA1 Message Date
Yvan Roux
244ad228f3 [ARM][MachineOutliner] Add stack fixup feature
This patch handles cases where we have to save/restore the link register
into the stack and and load/store instruction which use the stack are
part of the outlined region. It checks that there will be no overflow
introduced by the new offset and fixup these instructions accordingly.

Differential Revision: https://reviews.llvm.org/D92934
2021-01-19 10:59:09 +01:00
Yvan Roux
070b96962f [ARM][MachineOutliner] Add calls handling.
Handles calls inside outlined regions, by saving and restoring the link
register.

Differential Revision: https://reviews.llvm.org/D87136
2020-09-16 09:54:26 +02:00
Yvan Roux
0459f29e8b [ARM][MachineOutliner] Add default mode.
Use the stack to save and restore the link register when there is no
available register to do it.

Differential Revision: https://reviews.llvm.org/D76069
2020-08-20 09:25:33 +02:00