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Issue 12700008: remove latin-1 flag (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: removed SeqOneByteStringVerify Created 7 years, 9 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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6732 __ j(zero, &compare_lengths, Label::kNear); 6732 __ j(zero, &compare_lengths, Label::kNear);
6733 6733
6734 // Compare characters. 6734 // Compare characters.
6735 Label result_not_equal; 6735 Label result_not_equal;
6736 GenerateAsciiCharsCompareLoop(masm, left, right, min_length, scratch2, 6736 GenerateAsciiCharsCompareLoop(masm, left, right, min_length, scratch2,
6737 &result_not_equal, Label::kNear); 6737 &result_not_equal, Label::kNear);
6738 6738
6739 // Compare lengths - strings up to min-length are equal. 6739 // Compare lengths - strings up to min-length are equal.
6740 __ bind(&compare_lengths); 6740 __ bind(&compare_lengths);
6741 __ test(length_delta, length_delta); 6741 __ test(length_delta, length_delta);
6742 #ifndef ENABLE_LATIN_1
6743 __ j(not_zero, &result_not_equal, Label::kNear);
6744 #else
6745 Label length_not_equal; 6742 Label length_not_equal;
6746 __ j(not_zero, &length_not_equal, Label::kNear); 6743 __ j(not_zero, &length_not_equal, Label::kNear);
6747 #endif
6748 6744
6749 // Result is EQUAL. 6745 // Result is EQUAL.
6750 STATIC_ASSERT(EQUAL == 0); 6746 STATIC_ASSERT(EQUAL == 0);
6751 STATIC_ASSERT(kSmiTag == 0); 6747 STATIC_ASSERT(kSmiTag == 0);
6752 __ Set(eax, Immediate(Smi::FromInt(EQUAL))); 6748 __ Set(eax, Immediate(Smi::FromInt(EQUAL)));
6753 __ ret(0); 6749 __ ret(0);
6754 6750
6755 Label result_greater; 6751 Label result_greater;
6756 #ifdef ENABLE_LATIN_1
6757 Label result_less; 6752 Label result_less;
6758 __ bind(&length_not_equal); 6753 __ bind(&length_not_equal);
6759 __ j(greater, &result_greater, Label::kNear); 6754 __ j(greater, &result_greater, Label::kNear);
6760 __ jmp(&result_less, Label::kNear); 6755 __ jmp(&result_less, Label::kNear);
6761 #endif
6762 __ bind(&result_not_equal); 6756 __ bind(&result_not_equal);
6763 #ifndef ENABLE_LATIN_1
6764 __ j(greater, &result_greater, Label::kNear);
6765 #else
6766 __ j(above, &result_greater, Label::kNear); 6757 __ j(above, &result_greater, Label::kNear);
6767 __ bind(&result_less); 6758 __ bind(&result_less);
6768 #endif
6769 6759
6770 // Result is LESS. 6760 // Result is LESS.
6771 __ Set(eax, Immediate(Smi::FromInt(LESS))); 6761 __ Set(eax, Immediate(Smi::FromInt(LESS)));
6772 __ ret(0); 6762 __ ret(0);
6773 6763
6774 // Result is GREATER. 6764 // Result is GREATER.
6775 __ bind(&result_greater); 6765 __ bind(&result_greater);
6776 __ Set(eax, Immediate(Smi::FromInt(GREATER))); 6766 __ Set(eax, Immediate(Smi::FromInt(GREATER)));
6777 __ ret(0); 6767 __ ret(0);
6778 } 6768 }
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7871 // Restore ecx. 7861 // Restore ecx.
7872 __ pop(ecx); 7862 __ pop(ecx);
7873 __ ret(0); 7863 __ ret(0);
7874 } 7864 }
7875 7865
7876 #undef __ 7866 #undef __
7877 7867
7878 } } // namespace v8::internal 7868 } } // namespace v8::internal
7879 7869
7880 #endif // V8_TARGET_ARCH_IA32 7870 #endif // V8_TARGET_ARCH_IA32
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