RFR: 8310863: Build failure after JDK- 8305341

[Julian Waters]

On Mon, 26 Jun 2023 04:26:47 GMT, David Holmes <dholmes at openjdk.org> wrote:

> > as is evident in the tests for this PR
> 
> You mean the GHA builds? They don't seem to be building the failing `jdk.jdwp.agent-static-libs` target.

I can't recompile the JDK at the moment to compile ArrayReferenceImpl.c, but I can devise a simple test for this:


#include <stdio.h>

int main() {
    _Alignas(8)
    int i = 7;
    printf("%i", i);
    return 0;
}


`cl.exe -nologo -std:c11 -Fo:align.o align.c`


align.exe
7


The _Alignas specifier does the same thing as the __declspec(align()) one, so there's no difference in which is used (which also means that the other places where this is used being able to compile is proof of it working as well)

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PR Comment: https://git.openjdk.org/jdk/pull/14645#issuecomment-1606579037