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Author SHA1 Message Date
Kai Luo 5eaebd5d64 [PowerPC] Implement quadword atomic load/store 
Add support to load/store i128 atomically.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D105612
 2021-09-01 06:55:40 +00:00
Kai Luo b9c3941cd6 [PowerPC] Generate inlined quadword lock free atomic operations via AtomicExpand 
This patch uses AtomicExpandPass to implement quadword lock free atomic operations. It adopts the method introduced in https://reviews.llvm.org/D47882, which expand atomic operations post RA to avoid spilling that might prevent LL/SC progress.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D103614
 2021-07-15 01:12:09 +00:00