1.1 --- a/src/cpu/x86/vm/stubGenerator_x86_32.cpp Thu May 07 19:37:47 2015 -0700 1.2 +++ b/src/cpu/x86/vm/stubGenerator_x86_32.cpp Fri Apr 17 17:39:19 2015 -0700 1.3 @@ -837,7 +837,8 @@ 1.4 1.5 if (UseUnalignedLoadStores && (UseAVX >= 2)) { 1.6 // clean upper bits of YMM registers 1.7 - __ vzeroupper(); 1.8 + __ vpxor(xmm0, xmm0); 1.9 + __ vpxor(xmm1, xmm1); 1.10 } 1.11 __ addl(qword_count, 8); 1.12 __ jccb(Assembler::zero, L_exit);