MIPS: reland 16744: add context save for GenerateFastApiCall.

src/mips/macro-assembler-mips.h

Index: src/mips/macro-assembler-mips.h
diff --git a/src/mips/macro-assembler-mips.h b/src/mips/macro-assembler-mips.h
index 75ded8849092dbde52ba9c9983cd653d2ee9d49a..2936119fcad3df85e13f49bb6cea4b3b6f5dc5c1 100644
--- a/src/mips/macro-assembler-mips.h
+++ b/src/mips/macro-assembler-mips.h
@@ -848,6 +848,7 @@ class MacroAssembler: public Assembler {
   // Leave the current exit frame.
   void LeaveExitFrame(bool save_doubles,
                       Register arg_count,
+                      bool restore_context,
                       bool do_return = false);

[Paul Lind, 2013/09/17 17:54:22]

To make the code more readable, I'd like to see an enum defined for this
do_return flag. Maybe EMIT_RETURN or some other name that would make sense at
the calls-site. Define the enum at the start of this file, something like this:

enum LeaveExitFrameMode {
   EMIT_RETRUN = true;
   NO_EMIT_RETURN = false;
};

Then above is bool do_return = NO_EMIT_RETURN;

[kilvadyb, 2013/09/17 18:40:42]

Done.

 
   // Get the actual activation frame alignment for target environment.
@@ -1271,7 +1272,8 @@ class MacroAssembler: public Assembler {
                                 ExternalReference thunk_ref,
                                 Register thunk_last_arg,
                                 int stack_space,
-                                int return_value_offset_from_fp);
+                                MemOperand return_value_operand,
+                                MemOperand* context_restore_operand);
 
   // Jump to the builtin routine.
   void JumpToExternalReference(const ExternalReference& builtin,