Merged r16772, r18000, r18030, r18298, r18319 into 3.21 branch.

src/mips/builtins-mips.cc

Index: src/mips/builtins-mips.cc
diff --git a/src/mips/builtins-mips.cc b/src/mips/builtins-mips.cc
index 3aabd97b9729339432e28dd9248152f75f20636d..a300d1f15b0a21fbae2d1ba005fcb327b80bc06b 100644
--- a/src/mips/builtins-mips.cc
+++ b/src/mips/builtins-mips.cc
@@ -823,12 +823,9 @@ static void GenerateMakeCodeYoungAgainCommon(MacroAssembler* masm) {
   // internal frame to make the code faster, since we shouldn't have to do stack
   // crawls in MakeCodeYoung. This seems a bit fragile.
 
-  __ mov(a0, ra);
-  // Adjust a0 to point to the head of the PlatformCodeAge sequence
+  // Set a0 to point to the head of the PlatformCodeAge sequence.
   __ Subu(a0, a0,
       Operand((kNoCodeAgeSequenceLength - 1) * Assembler::kInstrSize));
-  // Restore the original return address of the function
-  __ mov(ra, at);
 
   // The following registers must be saved and restored when calling through to
   // the runtime:
@@ -858,7 +855,9 @@ CODE_AGE_LIST(DEFINE_CODE_AGE_BUILTIN_GENERATOR)
 #undef DEFINE_CODE_AGE_BUILTIN_GENERATOR
 
 
-void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) {
+
+static void Generate_NotifyStubFailureHelper(MacroAssembler* masm,
+                                             SaveFPRegsMode save_doubles) {
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
 
@@ -867,7 +866,7 @@ void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) {
     // registers.
     __ MultiPush(kJSCallerSaved | kCalleeSaved);
     // Pass the function and deoptimization type to the runtime system.
-    __ CallRuntime(Runtime::kNotifyStubFailure, 0);
+    __ CallRuntime(Runtime::kNotifyStubFailure, 0, save_doubles);
     __ MultiPop(kJSCallerSaved | kCalleeSaved);
   }
 
@@ -876,6 +875,16 @@ void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) {
 }
 
 
+void Builtins::Generate_NotifyStubFailure(MacroAssembler* masm) {
+  Generate_NotifyStubFailureHelper(masm, kDontSaveFPRegs);
+}
+
+
+void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) {
+  Generate_NotifyStubFailureHelper(masm, kSaveFPRegs);
+}
+
+
 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm,
                                              Deoptimizer::BailoutType type) {
   {