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comparison src/cpu/x86/vm/macroAssembler_x86.hpp @ 7474:00af3a3a8df4

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8005522: use fast-string instructions on x86 for zeroing Summary: use 'rep stosb' instead of 'rep stosq' when fast-string operations are available. Reviewed-by: twisti, roland
author kvn
date Thu, 03 Jan 2013 15:09:55 -0800
parents 18d56ca3e901
children 038dd2875b94
comparison
equal deleted inserted replaced
7473:d092d1b31229 7474:00af3a3a8df4
1094 void movl2ptr(Register dst, Register src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(if (dst != src) movl(dst, src)); } 1094 void movl2ptr(Register dst, Register src) { LP64_ONLY(movslq(dst, src)) NOT_LP64(if (dst != src) movl(dst, src)); }
1095 1095
1096 // C2 compiled method's prolog code. 1096 // C2 compiled method's prolog code.
1097 void verified_entry(int framesize, bool stack_bang, bool fp_mode_24b); 1097 void verified_entry(int framesize, bool stack_bang, bool fp_mode_24b);
1098 1098
1099 // clear memory of size 'cnt' qwords, starting at 'base'.
1100 void clear_mem(Register base, Register cnt, Register rtmp);
1101
1099 // IndexOf strings. 1102 // IndexOf strings.
1100 // Small strings are loaded through stack if they cross page boundary. 1103 // Small strings are loaded through stack if they cross page boundary.
1101 void string_indexof(Register str1, Register str2, 1104 void string_indexof(Register str1, Register str2,
1102 Register cnt1, Register cnt2, 1105 Register cnt1, Register cnt2,
1103 int int_cnt2, Register result, 1106 int int_cnt2, Register result,