There are 2 kinds of cost model in WARPO.

Performance Cost Model is CPU execution time for each wasm op code.

Size Cost Model is average instructions count for each wasm op code.

Input is plain text file with following format.
<wasm op code [string]> <average count of instructions [float]>.

INFO

A special op code func is added to identify additional costs for each function.

preset size cost models for 5 backend:

• model/instruction_cost_aarch64_active_vb_warp.txt
• model/instruction_cost_aarch64_vb_warp.txt
• model/instruction_cost_tricore_vb_warp.txt
• model/instruction_cost_x86_64_active_vb_warp.txt
• model/instruction_cost_x86_64_vb_warp.txt