Summary:
- Remove the no longer used Darwin CalleeSavedRegs
- Combine the SVR464 callee saved regs and AIX64 since the two are (and should be) identical into PPC64
- Update tests for 64-bit CSR change
Reviewers: sfertile, ZarkoCA, cebowleratibm, jasonliu, #powerpc
Reviewed By: sfertile
Subscribers: wuzish, nemanjai, hiraditya, kbarton, shchenz, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D77235
This patch reworks the AIX call lowering to use CCState. Some defensive errors
are added in this patch to protect from emitting bad code for calling convention
logic that has not been implemented by design. The use of CCState follows the
precedent of other targets and enables the reuse of calling convention logic in
LowerFormalArguments, which will be rewritten to also use CCState in a late
patch.
Patch by Chris Bowler.
Differential Revision: https://reviews.llvm.org/D69101
David Tenty