[Arm]: Assert that movw/movt is only emitted for Armv7 targets

src/arm/assembler-arm.cc

Index: src/arm/assembler-arm.cc
diff --git a/src/arm/assembler-arm.cc b/src/arm/assembler-arm.cc
index 7df9202324945a0f244319e7261e73934b8af05a..5e8f14ab0e3eaada8bd9799c1e7f718c74b4eef2 100644
--- a/src/arm/assembler-arm.cc
+++ b/src/arm/assembler-arm.cc
@@ -1495,11 +1495,13 @@ void Assembler::mov_label_offset(Register dst, Label* label) {
 
 
 void Assembler::movw(Register reg, uint32_t immediate, Condition cond) {
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   emit(cond | 0x30*B20 | reg.code()*B12 | EncodeMovwImmediate(immediate));
 }
 
 
 void Assembler::movt(Register reg, uint32_t immediate, Condition cond) {
+  ASSERT(CpuFeatures::IsSupported(ARMv7));
   emit(cond | 0x34*B20 | reg.code()*B12 | EncodeMovwImmediate(immediate));
 }