Vladimir V. Ivanov

8292203: AArch64: Represent Registers as values

6

(It's a PR dependent on #9815.) Along with x86 ([JDK-8292153](https://bugs.openjdk.org/browse/JDK-8292153)), I propose to refactor Register classes on AArch64 and migrate away from pointer-based representation. The motivation is the same: improve...

8331885: C2: meet between unloaded and speculative types is not symmetric

4

`TypeInstPtr::xmeet_unloaded` computes the MEET of two InstPtrs when at least one is unloaded, but doesn't preserve speculative part if one is present. It causes the corresponding assert to fail. Proposed...

8373633: C2: Use interface receiver type to improve CHA decisions

5

Strength-reducing an interface call to a virtual call for interfaces with unique implementors can use receiver type information to narrow the context. C2 tracks interface types and receiver type information...