ARM: Add multiplication and modulus to the type recording binary operation st...

src/arm/macro-assembler-arm.cc

 // Copyright 2011 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 1936 matching lines @@
     Label ok, fail;
     CheckMap(map, scratch, Heap::kMetaMapRootIndex, &fail, false);
     b(&ok);
     bind(&fail);
     Abort("Global functions must have initial map");
     bind(&ok);
   }
 }
 
 
+void MacroAssembler::JumpIfNotPowerOfTwoOrZero(
+    Register reg,
+    Register scratch,
+    Label* not_power_of_two_or_zero) {
+  sub(scratch, reg, Operand(1), SetCC);
+  b(mi, not_power_of_two_or_zero);
+  tst(scratch, reg);
+  b(ne, not_power_of_two_or_zero);
+}
+
+
 void MacroAssembler::JumpIfNotBothSmi(Register reg1,
                                       Register reg2,
                                       Label* on_not_both_smi) {
   STATIC_ASSERT(kSmiTag == 0);
   tst(reg1, Operand(kSmiTagMask));
   tst(reg2, Operand(kSmiTagMask), eq);
   b(ne, on_not_both_smi);
 }
 
 
@@ skipping 128 matching lines @@
   for (int i = 0; i < field_count; i++) {
     ldr(tmp, FieldMemOperand(src, i * kPointerSize));
     str(tmp, FieldMemOperand(dst, i * kPointerSize));
   }
 }
 
 
 void MacroAssembler::CountLeadingZeros(Register zeros,   // Answer.
                                        Register source,  // Input.
                                        Register scratch) {
-  ASSERT(!zeros.is(source) || !source.is(zeros));
+  ASSERT(!zeros.is(source) || !source.is(scratch));
   ASSERT(!zeros.is(scratch));
   ASSERT(!scratch.is(ip));
   ASSERT(!source.is(ip));
   ASSERT(!zeros.is(ip));
 #ifdef CAN_USE_ARMV5_INSTRUCTIONS
   clz(zeros, source);  // This instruction is only supported after ARM5.
 #else
   mov(zeros, Operand(0, RelocInfo::NONE));
   Move(scratch, source);
   // Top 16.
@@ skipping 158 matching lines @@
 
 void CodePatcher::Emit(Address addr) {
   masm()->emit(reinterpret_cast<Instr>(addr));
 }
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM