# HG changeset patch
# User thartmann
# Date 1515144237 -3600
# Node ID a97a26eb896ff012d51e92aae9ba4e63c45cc2aa
# Parent  8935285e875910a77e701df8404bcbff85f185ba
8194494: SHA-512 stub uses AVX 2 instructions on non-supporting CPUs
Summary: Check for supports_avx2() && supports_bmi2() before generating SHA-512 stub.
Reviewed-by: kvn

diff -r 8935285e8759 -r a97a26eb896f src/hotspot/cpu/x86/vm_version_x86.cpp
--- a/src/hotspot/cpu/x86/vm_version_x86.cpp	Thu Jan 04 14:44:38 2018 -0800
+++ b/src/hotspot/cpu/x86/vm_version_x86.cpp	Fri Jan 05 10:23:57 2018 +0100
@@ -882,7 +882,7 @@
     FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
   }
 
-  if (UseSHA) {
+  if (UseSHA && supports_avx2() && supports_bmi2()) {
     if (FLAG_IS_DEFAULT(UseSHA512Intrinsics)) {
       FLAG_SET_DEFAULT(UseSHA512Intrinsics, true);
     }