[Bug 3533] HotSpot generates code with unaligned stack, crashes on SSE operations

bugzilla-daemon at icedtea.classpath.org bugzilla-daemon at icedtea.classpath.org
Wed May 9 15:26:27 UTC 2018


https://icedtea.classpath.org/bugzilla/show_bug.cgi?id=3533

--- Comment #19 from Andrew John Hughes <gnu.andrew at redhat.com> ---
(In reply to Maciej S. Szmigiero from comment #18)
> 
> Is your Gentoo setup 32-bit?
> 64-bit ABI does much less parameter passing on the stack, also the 64-bit
> HotSpot code generator often exercises a bit different code paths than the
> 32-bit one.

No, I have enough of a setup on x86_64 to build OpenJDK x86 using multilib, but
I haven't had a full x86 setup in about fifteen years. Thus, I think the reason
this hasn't been encountered before is the combination of it requiring a full
x86 setup built with SSE2, whereas most binary distros still seem to go with
i686 to increase compatibility.

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