3 Commits

Author	SHA1	Message	Date
Kai Nacke	427fb35192	[PPC] Opaque pointer migration, part 1. ... The LIT test cases were migrated with the script provided by Nikita Popov. Due to the size of the change it is split into several parts. Reviewed By: nemanja, amyk, nikic, PowerPC Differential Revision: https://reviews.llvm.org/D135470	2022-10-11 17:24:06 +00:00
Nemanja Ivanovic	4ea121c904	[PowerPC] Fix a number of inefficiencies and issues with atomic code gen ... There are a few issues with the code we generate for atomic operations and the way we generate it: - Hard coded CR0 for compares - Order of operands for compares not conducive to emitting compare-immediate or for CSE of compares - Missing MachineMemOperand for st[bhwd]cx intrinsics - Missing intrinsic properties for the same - Unnecessary blocks with store conditional instructions to clear reservation (which ends up hindering performance) - Move from CR instructions just to compare the result of a store conditional with zero (even though it is a record-form) This patch aims to resolve all of those issues. Differential revision: https://reviews.llvm.org/D134783	2022-10-03 19:55:29 -05:00
Kai Luo	e2ee27b20b	[PowerPC] Fallback to base's implementation of shouldExpandAtomicCmpXchgInIR and shouldExpandAtomicCmpXchgInIR ... If we can't decide `shouldExpandAtomicCmpXchgInIR` or `shouldExpandAtomicCmpXchgInIR` in PPC's implementation after https://reviews.llvm.org/rGb9c3941cd61de1e1b9e4f3311ddfa92394475f4b, resort to base's implementation. This fixes internal build of OpenMP which uses atomic operations on float. Reviewed By: jsji Differential Revision: https://reviews.llvm.org/D106234	2021-07-20 06:14:24 +00:00