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comparison src/cpu/x86/vm/x86_32.ad @ 2262:6bbaedb03534

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7016474: string compare intrinsic improvements Reviewed-by: kvn
author never
date Wed, 09 Feb 2011 15:02:23 -0800
parents 2f644f85485d
children 41d4973cf100
comparison
equal deleted inserted replaced
2261:1957c1478794 2262:6bbaedb03534
12627 OpcRegReg(0x33,EAX,EAX), 12627 OpcRegReg(0x33,EAX,EAX),
12628 Opcode(0xF3), Opcode(0xAB) ); 12628 Opcode(0xF3), Opcode(0xAB) );
12629 ins_pipe( pipe_slow ); 12629 ins_pipe( pipe_slow );
12630 %} 12630 %}
12631 12631
12632 instruct string_compare(eDIRegP str1, eCXRegI cnt1, eSIRegP str2, eBXRegI cnt2, 12632 instruct string_compare(eDIRegP str1, eCXRegI cnt1, eSIRegP str2, eDXRegI cnt2,
12633 eAXRegI result, regXD tmp1, regXD tmp2, eFlagsReg cr) %{ 12633 eAXRegI result, regXD tmp1, eFlagsReg cr) %{
12634 match(Set result (StrComp (Binary str1 cnt1) (Binary str2 cnt2))); 12634 match(Set result (StrComp (Binary str1 cnt1) (Binary str2 cnt2)));
12635 effect(TEMP tmp1, TEMP tmp2, USE_KILL str1, USE_KILL str2, USE_KILL cnt1, USE_KILL cnt2, KILL cr); 12635 effect(TEMP tmp1, USE_KILL str1, USE_KILL str2, USE_KILL cnt1, USE_KILL cnt2, KILL cr);
12636 12636
12637 format %{ "String Compare $str1,$cnt1,$str2,$cnt2 -> $result // KILL $tmp1, $tmp2" %} 12637 format %{ "String Compare $str1,$cnt1,$str2,$cnt2 -> $result // KILL $tmp1" %}
12638 ins_encode %{ 12638 ins_encode %{
12639 __ string_compare($str1$$Register, $str2$$Register, 12639 __ string_compare($str1$$Register, $str2$$Register,
12640 $cnt1$$Register, $cnt2$$Register, $result$$Register, 12640 $cnt1$$Register, $cnt2$$Register, $result$$Register,
12641 $tmp1$$XMMRegister, $tmp2$$XMMRegister); 12641 $tmp1$$XMMRegister);
12642 %} 12642 %}
12643 ins_pipe( pipe_slow ); 12643 ins_pipe( pipe_slow );
12644 %} 12644 %}
12645 12645
12646 // fast string equals 12646 // fast string equals