Thumb2 Backend: Make arithmetic instructions set condition codes by default

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index fff8d5e71553ad375785e1dea1dbd39c7cdfa969..a793074fab0ed943c77667d8ac3a62ed9e3148dc 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -914,10 +914,10 @@ void Code::PatchPlatformCodeAge(byte* sequence,
     CodePatcher patcher(sequence, young_length / Assembler::kInstrSize);
     if (thumb_mode) {
       patcher.masm()->set_thumb_mode();
-      patcher.masm()->sub(r0, pc, Operand(3));
+      patcher.masm()->sub(r0, pc, Operand(3), LeaveCC);
       patcher.masm()->ldr(pc, MemOperand(pc, 0));
     } else {
-      patcher.masm()->sub(r0, pc, Operand(8));
+      patcher.masm()->sub(r0, pc, Operand(8), LeaveCC);
       patcher.masm()->ldr(pc, MemOperand(pc, -4));
     }
     patcher.masm()->dd(reinterpret_cast<uint32_t>(stub->instruction_start()));