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Author SHA1 Message Date
Sebastian Neubauer b91afa474e [AMDGPU] Mark epilog restores as frame-destroy 
I guess instructions were marked as frame-setup by accident, they are
restores as part of the epilog.

Differential Revision: https://reviews.llvm.org/D95783
 2021-02-02 10:24:37 +01:00
Christudasan Devadasan 7c4e711ef8 [AMDGPU] Enable base pointer. 
When the callee requires a dynamic stack realignment,
it is not possible to correcty access the incoming
stack arguments using the stack pointer. We reserve a
base pointer in such cases to access the function arguments
inside the callee. The base pointer will hold the incoming
stack pointer value before any kind of delta added to it.

Reviewed By: arsenm, scott.linder

Differential Revision: https://reviews.llvm.org/D78811
 2020-05-17 16:13:55 +05:30
Christudasan Devadasan 207cd5f68f [AMDGPU] Add the SGPR used for FP copy to block livein lists. 
The temporary register used for FP copy
should be live throughout the function.
 2020-04-24 11:47:38 +05:30