Version 2.5.2

src/arm/ic-arm.cc

Index: src/arm/ic-arm.cc
diff --git a/src/arm/ic-arm.cc b/src/arm/ic-arm.cc
index 7f83d14af90ab611c9f733c2899f9c53e418939b..c460f9ca6f79411d67f137ee5ec673eaa383e6a8 100644
--- a/src/arm/ic-arm.cc
+++ b/src/arm/ic-arm.cc
@@ -1410,9 +1410,12 @@ void KeyedLoadIC::GenerateExternalArray(MacroAssembler* masm,
 
     __ bind(&box_int);
     // Allocate a HeapNumber for the result and perform int-to-double
-    // conversion. Use r0 for result as key is not needed any more.
+    // conversion.  Don't touch r0 or r1 as they are needed if allocation
+    // fails.
     __ LoadRoot(r6, Heap::kHeapNumberMapRootIndex);
-    __ AllocateHeapNumber(r0, r3, r4, r6, &slow);
+    __ AllocateHeapNumber(r5, r3, r4, r6, &slow);
+    // Now we can use r0 for the result as key is not needed any more.
+    __ mov(r0, r5);
 
     if (CpuFeatures::IsSupported(VFP3)) {
       CpuFeatures::Scope scope(VFP3);