[llvm-dev] Regarding PBQP register allocator not working for X86

[Siddharth Jain via llvm-dev]

Hi All,

I am building LLVM 10.0.1 from source for X86 target, the build completed
successfully but when I am compiling using clang(build from source) with
“regalloc” flag set to “pbqp”, following error is thrown

"clang (LLVM option parsing): for the --regalloc option: Cannot find option
named 'pbqp'!"

My query is how can I use the pbqp register allocator with clang(build from
source) for the X86 target?

Regards,

Siddharth Jain

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