RFR(M): 8139258: PPC64LE: argument passing problem when passing 15 floats in native call

[Doerr, Martin]

Hi Sasha,

thank you very much for debugging the interpreter. The test passes as long as the method gets interpreted, now.
However, I didn't get the right result when running with -Xcomp.
I guess there's still something wrong with the native wrapper (generate_native_wrapper / float_move etc.) for PPC64LE.

Btw. I think the defined(VM_LITTLE_ENDIAN) should be used. I'd simply change the code to
#if defined(LINUX) && !defined(VM_LITTLE_ENDIAN)
  __ stfs(floatSlot, 4, arg_c);
#else
  __ stfs(floatSlot, 0, arg_c);
#endif

Best regards and thanks again,
  Martin


-----Original Message-----
From: hotspot-dev [mailto:hotspot-dev-bounces at openjdk.java.net] On Behalf Of Alexander Smundak
Sent: Freitag, 13. November 2015 00:37
To: HotSpot Open Source Developers <hotspot-dev at openjdk.java.net>
Subject: RFR(M): 8139258: PPC64LE: argument passing problem when passing 15 floats in native call

Please review the patch fixing https://bugs.openjdk.java.net/browse/JDK-8139258.
I have tested in on Linux running on ppc64le.
I need a sponsor.

http://cr.openjdk.java.net/~asmundak/8139258/hotspot/webrev.00

Sasha