Freddy Ye d102f8bda1 [MachineBlockPlacement][X86] Use max of MDAlign and TLIAlign to align Loops. (#71026) ...

This patch added backend consumption on a new loop metadata:
!1 = !{!"llvm.loop.align", i32 64}
which is generated from clang's new loop attribute:
[[clang::code_align()]]
clang patch: #70762

2023-11-21 14:06:32 +08:00

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