Fixed some soft-float bugs for MIPS and ARM.

src/arm/lithium-codegen-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 4958 matching lines @@
                                               sfpd_lo, sfpd_hi,
                                               scratch0(), s0);
     }
   } else {
     if (CpuFeatures::IsSupported(VFP2)) {
       CpuFeatureScope scope(masm(), VFP2);
       __ vmov(flt_scratch, src);
       __ vcvt_f64_u32(dbl_scratch, flt_scratch);
     } else {
       Label no_leading_zero, done;
+      __ mov(sfpd_hi, src);
       __ tst(src, Operand(0x80000000));
       __ b(ne, &no_leading_zero);
 
       // Integer has one leading zeros.
       GenerateUInt2Double(masm(), sfpd_hi, sfpd_lo, r9, 1);
       __ b(&done);
 
       __ bind(&no_leading_zero);
       GenerateUInt2Double(masm(), sfpd_hi, sfpd_lo, r9, 0);
-      __ b(&done);
+      __ bind(&done);
     }
   }
 
   if (FLAG_inline_new) {
     __ LoadRoot(scratch0(), Heap::kHeapNumberMapRootIndex);
     __ AllocateHeapNumber(r5, r3, r4, scratch0(), &slow, DONT_TAG_RESULT);
     __ Move(dst, r5);
     __ b(&done);
   }
 
@@ skipping 1398 matching lines @@
   __ sub(scratch, result, Operand(index, LSL, kPointerSizeLog2 - kSmiTagSize));
   __ ldr(result, FieldMemOperand(scratch,
                                  FixedArray::kHeaderSize - kPointerSize));
   __ bind(&done);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal