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8007708: compiler/6855215 assert(VM_Version::supports_sse4_2())

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Added missing UseSSE42 check. Also added missing avx2 assert for vpermq instruction.

Reviewed-by: roland, twisti
This commit is contained in:
Vladimir Kozlov 2013-02-08 15:07:17 -08:00
parent 2fd28ebb43
commit 231bbf39f4
2 changed files with 6 additions and 5 deletions
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2
hotspot/src/cpu/x86/vm/macroAssembler_x86.cpp
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@ -5691,7 +5691,7 @@ void MacroAssembler::string_compare(Register str1, Register str2,
Address::ScaleFactor scale = Address::times_2;
int stride = 8;
if (UseAVX >= 2) {
if (UseAVX >= 2 && UseSSE42Intrinsics) {
Label COMPARE_WIDE_VECTORS, VECTOR_NOT_EQUAL, COMPARE_WIDE_TAIL, COMPARE_SMALL_STR;
Label COMPARE_WIDE_VECTORS_LOOP, COMPARE_16_CHARS, COMPARE_INDEX_CHAR;
Label COMPARE_TAIL_LONG;