On Wed, 11 Nov 2020 12:44:56 GMT, Vladimir Ivanov <vliva...@openjdk.org> wrote:
>> Maurizio Cimadamore has updated the pull request incrementally with 10
>> additional commits since the last revision:
>>
>> - Merge pull request #7 from JornVernee/Additional_Review_Comments
>>
>> Additional review comments
>> - Revert System.java changes
>> - Set copyright year for added files to 2020
>> - Check result of AttachCurrentThread
>> - Sort includes alphabetically
>> - Relax ret_addr_offset() assert
>> - Extra space after if
>> - remove excessive asserts in ProgrammableInvoker::invoke_native
>> - Remove os::is_MP() check
>> - remove blank line in thread.hpp
>
> src/hotspot/share/opto/callnode.cpp line 1143:
>
>> 1141: case TypeFunc::Parms:
>> 1142: default: {
>> 1143: if(tf()->range()->field_at(proj->_con) == Type::HALF) {
>
> That's `TypeFunc::Parms+1` case in `CallNode::match`. Why did you decide to
> move it to `default` case?
>
> Overall, it looks very similar to `CallNode::match`. Why not just customize
> `OptoRegPair regs` computation for `CallNative` there?
For native calls we can have multiple return values, at least in theory.
Currently this is not the case though.
Will take another look.
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PR: https://git.openjdk.java.net/jdk/pull/634
