# HG changeset patch
# User glaubitz
# Date 1511522185 -3600
# Node ID f2412517fa70cc4200b064ec4c45ebadaf1cdad3
# Parent  4e5124dacf91f15d18acce9b27cc1d0cf598462d
8186461: Zero's atomic_copy64() should use SPE instructions on linux-powerpcspe
Reviewed-by: aph

diff -r 4e5124dacf91 -r f2412517fa70 src/hotspot/os_cpu/linux_zero/os_linux_zero.hpp
--- a/src/hotspot/os_cpu/linux_zero/os_linux_zero.hpp	Tue Nov 21 13:48:28 2017 +0100
+++ b/src/hotspot/os_cpu/linux_zero/os_linux_zero.hpp	Fri Nov 24 12:16:25 2017 +0100
@@ -36,12 +36,18 @@
 
   // Atomically copy 64 bits of data
   static void atomic_copy64(const volatile void *src, volatile void *dst) {
-#if defined(PPC32)
+#if defined(PPC32) && !defined(__SPE__)
     double tmp;
     asm volatile ("lfd  %0, %2\n"
                   "stfd %0, %1\n"
                   : "=&f"(tmp), "=Q"(*(volatile double*)dst)
                   : "Q"(*(volatile double*)src));
+#elif defined(PPC32) && defined(__SPE__)
+    long tmp;
+    asm volatile ("evldd  %0, %2\n"
+                  "evstdd %0, %1\n"
+                  : "=&r"(tmp), "=Q"(*(volatile long*)dst)
+                  : "Q"(*(volatile long*)src));
 #elif defined(S390) && !defined(_LP64)
     double tmp;
     asm volatile ("ld  %0, 0(%1)\n"