rustc_codegen_cranelift
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Use preserve_frame_pointers cranelift flag as necessary
Added in https://github.com/bytecodealliance/wasmtime/pull/4469 which hasn't landed in a stable release yet. It should be set if -Cforce-frame-pointers=yes is used or if the frame_pointer option in the target spec is not set to FramePointer::MayOmit.