RegExp: Add support for table-based character class

src/arm/regexp-macro-assembler-arm.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 462 matching lines @@
     uc16 mask,
     Label* on_not_equal) {
   ASSERT(minus < String::kMaxUtf16CodeUnit);
   __ sub(r0, current_character(), Operand(minus));
   __ and_(r0, r0, Operand(mask));
   __ cmp(r0, Operand(c));
   BranchOrBacktrack(ne, on_not_equal);
 }
 
 
+void RegExpMacroAssemblerARM::CheckCharacterInRange(
+    uc16 from,
+    uc16 to,
+    Label* on_in_range) {
+  __ sub(r0, current_character(), Operand(from));
+  __ cmp(r0, Operand(to - from));
+  BranchOrBacktrack(ls, on_in_range);  // Unsigned lower-or-same condition.
+}
+
+
+void RegExpMacroAssemblerARM::CheckCharacterNotInRange(
+    uc16 from,
+    uc16 to,
+    Label* on_not_in_range) {
+  __ sub(r0, current_character(), Operand(from));
+  __ cmp(r0, Operand(to - from));
+  BranchOrBacktrack(hi, on_not_in_range);  // Unsigned higher condition.
+}
+
+
+void RegExpMacroAssemblerARM::CheckBitInTable(
+    Handle<ByteArray> table,
+    Label* on_bit_set) {
+  __ mov(r0, Operand(table));
+  if (mode_ != ASCII || kTableMask != String::kMaxAsciiCharCode) {
+    __ and_(r1, current_character(), Operand(kTableSize - 1));
+    __ add(r1, r1, Operand(ByteArray::kHeaderSize - kHeapObjectTag));
+  } else {
+    __ add(r1,
+           current_character(),
+           Operand(ByteArray::kHeaderSize - kHeapObjectTag));
+  }
+  __ ldrb(r0, MemOperand(r0, r1));
+  __ cmp(r0, Operand(0));
+  BranchOrBacktrack(ne, on_bit_set);
+}
+
+
 bool RegExpMacroAssemblerARM::CheckSpecialCharacterClass(uc16 type,
                                                          Label* on_no_match) {
   // Range checks (c in min..max) are generally implemented by an unsigned
   // (c - min) <= (max - min) check
   switch (type) {
   case 's':
     // Match space-characters
     if (mode_ == ASCII) {
       // ASCII space characters are '\t'..'\r' and ' '.
       Label success;
@@ skipping 811 matching lines @@
   __ ldr(pc, MemOperand(sp, stack_alignment, PostIndex));
 }
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM