provides a mechanism for optimizing compilers to select the different Register configuration.

src/mips64/deoptimizer-mips64.cc

Index: src/mips64/deoptimizer-mips64.cc
diff --git a/src/mips64/deoptimizer-mips64.cc b/src/mips64/deoptimizer-mips64.cc
index 9c047efcc908a49babd4d6ad49303aaa14a6773a..24e690dfb360f3ddefeb4f34e3dd7d2a5ebc7615 100644
--- a/src/mips64/deoptimizer-mips64.cc
+++ b/src/mips64/deoptimizer-mips64.cc
@@ -144,7 +144,8 @@ void Deoptimizer::TableEntryGenerator::Generate() {
 
   // Save all FPU registers before messing with them.
   __ Dsubu(sp, sp, Operand(kDoubleRegsSize));
-  const RegisterConfiguration* config = RegisterConfiguration::ArchDefault();
+  const RegisterConfiguration* config =
+      RegisterConfiguration::ArchDefault(RegisterConfiguration::CRANKSHAFT);
   for (int i = 0; i < config->num_allocatable_double_registers(); ++i) {
     int code = config->GetAllocatableDoubleCode(i);
     const DoubleRegister fpu_reg = DoubleRegister::from_code(code);