JIT: Set default value for JitExtDefaultPolicyProfTrust 0 #55229
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The built-in profile works great for TE benchmarks, but regresses many micro-benchmarks if we decrease the benefit multiplier for cold blocks (with profile). Obviously, the micro benchmarks try to cover everything including blocks stated as cold by the built-in profile.
Example:
Results:
In theory we can trust any profile that is not the built-in one (it's too generic) but I'm not sure we can determinate its source in JIT today.
Size regression for R2R'd corelib with
--Ot
: +0.2%/cc @AndyAyersMS