RFR: 8370251: C2: Inlining checks for method handle intrinsics are too strict

[Vladimir Ivanov]

On Mon, 20 Oct 2025 21:00:40 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

> C2 performs access checks during inlining attempts through method handle
> intrinsic calls. But there are no such checks happening at runtime when
> executing the calls. (Access checks are performed when corresponding method
> handle is resolved.) So, inlining may fail due to access checks failure while
> the call always succeeds at runtime.
> 
> The fix is to skip access checks when inlining through method handle intrinsics.
> 
> Testing: hs-tier1 - hs-tier4

Thanks for the reviews, Vladimir and Roland.

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PR Comment: https://git.openjdk.org/jdk/pull/27908#issuecomment-3452135480