Propagate Deopt reason to cpu-profiler

src/arm64/deoptimizer-arm64.cc

Index: src/arm64/deoptimizer-arm64.cc
diff --git a/src/arm64/deoptimizer-arm64.cc b/src/arm64/deoptimizer-arm64.cc
index b83bbbe121e52d6d8cbcc56baab5a4eaa41dcb48..8c4b776efe2c5ea0774551fe996f0e242d909e4c 100644
--- a/src/arm64/deoptimizer-arm64.cc
+++ b/src/arm64/deoptimizer-arm64.cc
@@ -132,6 +132,9 @@ void Deoptimizer::EntryGenerator::Generate() {
   saved_registers.Combine(fp);
   __ PushCPURegList(saved_registers);
 
+  __ Mov(x3, Operand(ExternalReference(Isolate::kCEntryFPAddress, isolate())));

[yurys, 2015/02/10 08:27:13]

May be use UseScratchRegisterScope to allocate scratch register?

[loislo, 2015/02/10 08:54:33]

I don't think it makes sense here because the rest part of the code operates
with raw registers.

+  __ Str(fp, MemOperand(x3));
+
   const int kSavedRegistersAreaSize =
       (saved_registers.Count() * kXRegSize) +
       (saved_fp_registers.Count() * kDRegSize);