Relax requirement from VFP3 to VFP2 where possible.

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 57fe24b37518153d1523a16e8cbd3bacc236c233..09166c3c014eaef0b30adecb948c2c66639662ec 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -107,7 +107,7 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
   //  -- r4    : scratch (elements)
   // -----------------------------------
   Label loop, entry, convert_hole, gc_required, only_change_map, done;
-  bool vfp3_supported = CpuFeatures::IsSupported(VFP3);
+  bool vfp2_supported = CpuFeatures::IsSupported(VFP2);
 
   // Check for empty arrays, which only require a map transition and no changes
   // to the backing store.
@@ -182,7 +182,7 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
   // r5: kHoleNanUpper32
   // r6: end of destination FixedDoubleArray, not tagged
   // r7: begin of FixedDoubleArray element fields, not tagged
-  if (!vfp3_supported) __ Push(r1, r0);
+  if (!vfp2_supported) __ Push(r1, r0);
 
   __ b(&entry);
 
@@ -210,8 +210,8 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
   __ UntagAndJumpIfNotSmi(r9, r9, &convert_hole);
 
   // Normal smi, convert to double and store.
-  if (vfp3_supported) {
-    CpuFeatures::Scope scope(VFP3);
+  if (vfp2_supported) {
+    CpuFeatures::Scope scope(VFP2);
     __ vmov(s0, r9);
     __ vcvt_f64_s32(d0, s0);
     __ vstr(d0, r7, 0);
@@ -244,7 +244,7 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
   __ cmp(r7, r6);
   __ b(lt, &loop);
 
-  if (!vfp3_supported) __ Pop(r1, r0);
+  if (!vfp2_supported) __ Pop(r1, r0);
   __ pop(lr);
   __ bind(&done);
 }