Fixed some soft-float bugs for MIPS and ARM.

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 041aa3f0cddd8e0c10959065844a3b7425a48dcc..97ffea444a36d620d52b99f9f7c3f6f2c44c8689 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -4976,6 +4976,7 @@ void LCodeGen::DoDeferredNumberTagI(LInstruction* instr,
       __ 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);
 
@@ -4985,7 +4986,7 @@ void LCodeGen::DoDeferredNumberTagI(LInstruction* instr,
 
       __ bind(&no_leading_zero);
       GenerateUInt2Double(masm(), sfpd_hi, sfpd_lo, r9, 0);
-      __ b(&done);
+      __ bind(&done);
     }
   }