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3 Commits

Author SHA1 Message Date
Yvan Roux 923ca0b411 [ARM][MachineOutliner] Fix costs model. 
Fix candidates calls costs models allocation and prepare stack fixups
handling.

Differential Revision: https://reviews.llvm.org/D92933
 2020-12-17 16:08:23 +01:00
Momchil Velikov 937ab6a785 [ARM][MachineOutliner] Emit more CFI instructions 
This patch make the outliner emit CFI instructions in a few more
places:

  * after LR is restored, but before the return in an outlined
  function

  * around save/restore of LR to/from a register at calls to outlined
  functions

  * around save/restore of LR to/from the stack at calls to outlined
  functions

The latter two only when the function does NOT spill LR. If the
function spills LR, then outliner generated saves/restores around
calls are not considered interesting for unwinding the frame.

Differential Revision: https://reviews.llvm.org/D89483
 2020-11-09 15:26:18 +00:00
Yvan Roux deb8f8bcf3 [ARM][MachineOutliner] Add missing testcase for calls. 2020-09-17 15:20:21 +02:00