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Author SHA1 Message Date
Kai Luo ad2f7fd286 [AtomicExpand] Make floating point conversion happens before fence insertion 
IIUC, the conversion part is not part of atomic operations and fences should be put around converted atomic operations.
This also fixes atomic load of floating point values which requires fence on PowerPC.

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D127609
 2022-08-31 09:54:58 +08:00
Kai Luo 6710b21d46 [PowerPC] Allow llvm.ppc.cfence to accept pointer types 
In the context of atomic load, integer, pointer and float point types are allowed, thus we should allow llvm.ppc.cfence to accept any type mentioned.

Fixes https://github.com/llvm/llvm-project/issues/55983.

Reviewed By: shchenz, vchuravy

Differential Revision: https://reviews.llvm.org/D127554
 2022-06-24 10:55:32 +08:00
Kai Luo 029fc37270 [PowerPC][AtomicExpand] Precommit IR tests for D127609. NFC. 2022-06-14 14:24:21 +08:00