llvm-project

9fb6c65c - [PowerPC] Rework AMO load with Compare and Swap Not Equal to use post-RA pseudo expansion (#190698)

[PowerPC] Rework AMO load with Compare and Swap Not Equal to use post-RA pseudo expansion (#190698) Replace the dummy call lowering with a PPCPostRAExpPseudo that hardcodes X8/X9/X10 post-RA to satisfy the 3 consecutive register constraint for lwat/ldat FC=16, addressing reviewer feedback.