Integrated: 8364150: RISC-V: Leftover for JDK-8343430 removing old trampoline call

[Fei Yang]

On Mon, 28 Jul 2025 04:05:20 GMT, Fei Yang <fyang at openjdk.org> wrote:

> Hi, please consider this small change.
> 
> JDK-8343430 removed the old trampoline call on RISC-V. And the new solution (reloc call) loads a target address from stub section and do an indirect call. This means the stub is always there for a NativeCall. So there's no need to check existence of the stub when doing `CallRelocation::fix_relocation_after_move` [1].
> 
> We can always return the stub address in `NativeCall::reloc_destination` and use that address in `NativeCall::reloc_set_destination`. This helps simplify the code and saves one `MacroAssembler::target_addr_for_insn` call
> and one `trampoline_stub_Relocation::get_trampoline_for` call in these two functions respectively.
> 
> Testing on linux-riscv64:
> - [x] tier1-tier3 (release build)
> - [x] hs:tier1-hs:tier3 (fastdebug build)
> 
> [1] https://github.com/openjdk/jdk/blob/master/src/hotspot/share/code/relocInfo.cpp#L404-L406

This pull request has now been integrated.

Changeset: 3488f53d
Author:    Fei Yang <fyang at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/3488f53d2c3083bd886644684ec6885046ea7f8e
Stats:     14 lines in 2 files changed: 3 ins; 6 del; 5 mod

8364150: RISC-V: Leftover for JDK-8343430 removing old trampoline call

Reviewed-by: mli, fjiang

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PR: https://git.openjdk.org/jdk/pull/26495