I don't know of any profiling tools, but I've always relied on llvm-mca[0] -register-file-stats to show me what the expected register file usage is on an ISA [

I don't know of any profiling tools, but I've always relied on llvm-mca[0] -register-file-stats to show me what the expected register file usage is on an ISA [0] https://llvm.org/docs/CommandGuide/llvm-mca.html https://llvm.org/docs/CommandGuide/llvm-mca.html