Mercurial > hg > truffle

comparison src/cpu/x86/vm/x86_64.ad @ 622:56aae7be60d4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6812678: macro assembler needs delayed binding of a few constants (for 6655638) Summary: minor assembler enhancements preparing for method handles Reviewed-by: kvn
author jrose
date Wed, 04 Mar 2009 09:58:39 -0800
parents 98cb887364d3
children 337400e7a5dd
comparison
equal deleted inserted replaced
621:19f25e603e7b 622:56aae7be60d4
3763 masm.bind(RCX_GOOD_LABEL); 3763 masm.bind(RCX_GOOD_LABEL);
3764 masm.testl(rsi, rsi); 3764 masm.testl(rsi, rsi);
3765 masm.jcc(Assembler::zero, LENGTH_DIFF_LABEL); 3765 masm.jcc(Assembler::zero, LENGTH_DIFF_LABEL);
3766 3766
3767 // Load first characters 3767 // Load first characters
3768 masm.load_unsigned_word(rcx, Address(rbx, 0)); 3768 masm.load_unsigned_short(rcx, Address(rbx, 0));
3769 masm.load_unsigned_word(rdi, Address(rax, 0)); 3769 masm.load_unsigned_short(rdi, Address(rax, 0));
3770 3770
3771 // Compare first characters 3771 // Compare first characters
3772 masm.subl(rcx, rdi); 3772 masm.subl(rcx, rdi);
3773 masm.jcc(Assembler::notZero, POP_LABEL); 3773 masm.jcc(Assembler::notZero, POP_LABEL);
3774 masm.decrementl(rsi); 3774 masm.decrementl(rsi);
3794 masm.lea(rbx, Address(rbx, rsi, Address::times_2, 2)); 3794 masm.lea(rbx, Address(rbx, rsi, Address::times_2, 2));
3795 masm.negptr(rsi); 3795 masm.negptr(rsi);
3796 3796
3797 // Compare the rest of the characters 3797 // Compare the rest of the characters
3798 masm.bind(WHILE_HEAD_LABEL); 3798 masm.bind(WHILE_HEAD_LABEL);
3799 masm.load_unsigned_word(rcx, Address(rbx, rsi, Address::times_2, 0)); 3799 masm.load_unsigned_short(rcx, Address(rbx, rsi, Address::times_2, 0));
3800 masm.load_unsigned_word(rdi, Address(rax, rsi, Address::times_2, 0)); 3800 masm.load_unsigned_short(rdi, Address(rax, rsi, Address::times_2, 0));
3801 masm.subl(rcx, rdi); 3801 masm.subl(rcx, rdi);
3802 masm.jcc(Assembler::notZero, POP_LABEL); 3802 masm.jcc(Assembler::notZero, POP_LABEL);
3803 masm.increment(rsi); 3803 masm.increment(rsi);
3804 masm.jcc(Assembler::notZero, WHILE_HEAD_LABEL); 3804 masm.jcc(Assembler::notZero, WHILE_HEAD_LABEL);
3805 3805
3852 masm.andl(tmp2Reg, 1); 3852 masm.andl(tmp2Reg, 1);
3853 masm.testl(tmp2Reg, tmp2Reg); 3853 masm.testl(tmp2Reg, tmp2Reg);
3854 masm.jcc(Assembler::zero, COMPARE_LOOP_HDR); 3854 masm.jcc(Assembler::zero, COMPARE_LOOP_HDR);
3855 3855
3856 // Compare 2-byte "tail" at end of arrays 3856 // Compare 2-byte "tail" at end of arrays
3857 masm.load_unsigned_word(tmp1Reg, Address(ary1Reg, resultReg, Address::times_4, base_offset)); 3857 masm.load_unsigned_short(tmp1Reg, Address(ary1Reg, resultReg, Address::times_4, base_offset));
3858 masm.load_unsigned_word(tmp2Reg, Address(ary2Reg, resultReg, Address::times_4, base_offset)); 3858 masm.load_unsigned_short(tmp2Reg, Address(ary2Reg, resultReg, Address::times_4, base_offset));
3859 masm.cmpl(tmp1Reg, tmp2Reg); 3859 masm.cmpl(tmp1Reg, tmp2Reg);
3860 masm.jcc(Assembler::notEqual, FALSE_LABEL); 3860 masm.jcc(Assembler::notEqual, FALSE_LABEL);
3861 masm.testl(resultReg, resultReg); 3861 masm.testl(resultReg, resultReg);
3862 masm.jcc(Assembler::zero, TRUE_LABEL); 3862 masm.jcc(Assembler::zero, TRUE_LABEL);
3863 3863