Thumb2 Backend: Make arithmetic instructions set condition codes by default

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index f815dca1e815f572089a90456f90db4f954e32fb..036c282be78342684f4dd7d4fac6afdde92f88c1 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -673,7 +673,7 @@ void WriteInt32ToHeapNumberStub::Generate(MacroAssembler* masm) {
   // A non-Smi integer is 1.xxx * 2^30 so the exponent is 30 (biased).
   uint32_t non_smi_exponent =
       (HeapNumber::kExponentBias + 30) << HeapNumber::kExponentShift;
-  __ mov(scratch_, Operand(non_smi_exponent));
+  __ mov(scratch_, Operand(non_smi_exponent), LeaveCC);
   // Set the sign bit in scratch_ if the value was negative.
   __ orr(scratch_, scratch_, Operand(HeapNumber::kSignMask), LeaveCC, cs);
   // Subtract from 0 if the value was negative.
@@ -4808,7 +4808,7 @@ void StringHelper::GenerateCopyCharactersLong(MacroAssembler* masm,
   Label byte_loop;
   // Must copy at least eight bytes, otherwise just do it one byte at a time.
   __ cmp(count, Operand(8));
-  __ add(count, dest, Operand(count));
+  __ add(count, dest, Operand(count), LeaveCC);
   Register limit = count;  // Read until src equals this.
   __ b(lt, &byte_loop);
 
@@ -6354,7 +6354,7 @@ void NameDictionaryLookupStub::GeneratePositiveLookup(MacroAssembler* masm,
   NameDictionaryLookupStub stub(POSITIVE_LOOKUP);
   __ CallStub(&stub);
   __ cmp(r0, Operand::Zero());
-  __ mov(scratch2, Operand(r2));
+  __ mov(scratch2, Operand(r2), LeaveCC);
   __ ldm(ia_w, sp, spill_mask);
 
   __ b(ne, done);