[llvm] [RISCV] Use TableGen-based macro fusion (PR #72224)

[Mikhail Gudim via llvm-commits]

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+//===--- MacroFusionPredicatorEmitter.cpp - Generator for MacroFusion ----===//
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mgudim wrote:

I wonder if we could use MIR Patterns (https://llvm.org/docs/GlobalISel/MIRPatterns.html) to identify fusions

https://github.com/llvm/llvm-project/pull/72224