Changes

Changes from Git (git https://github.com/llvm/llvm-project.git)

Commit 8d9c13f37d2081c11186718ae8b5aef8b507d152 by qiucofan Revert "[PowerPC] Implement instruction clustering for stores" This reverts commit 3c0b3250230b3847a2a47dfeacfdb794c2285f02, (along with ea795304 and bb39eb9e) since it breaks test with UB sanitizer.
	llvm/test/CodeGen/PowerPC/pcrel-call-linkage-leaf.ll
	llvm/lib/Target/PowerPC/PPC.td
	llvm/lib/Target/PowerPC/PPCInstrInfo.h
	llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
	llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
	llvm/lib/Target/PowerPC/PPCSubtarget.cpp
	llvm/lib/Target/PowerPC/PPCSubtarget.h
	llvm/test/CodeGen/PowerPC/fusion-load-store.ll
Commit 7aabb6ad7764366fd3150d18b16da9aef35e6492 by samuel.tebbs [ARM][LowOverheadLoops] Remove modifications to the correct element count register After my patch at D86087, code that now uses the mov operand rather than the vctp operand will no longer remove modifications to the vctp operand as they should. This patch fixes that by explicitly removing modifications to the vctp operand rather than the register used as the element count.
	llvm/test/CodeGen/Thumb2/LowOverheadLoops/mov-after-dlstp.mir
	llvm/lib/Target/ARM/ARMLowOverheadLoops.cpp
	llvm/test/CodeGen/Thumb2/LowOverheadLoops/mov-operand.ll