[fullcode][mips][mips64][ppc][s390] Avoid trashing of a home object when doing a keyed store to a...

src/full-codegen/mips64/full-codegen-mips64.cc

Index: src/full-codegen/mips64/full-codegen-mips64.cc
diff --git a/src/full-codegen/mips64/full-codegen-mips64.cc b/src/full-codegen/mips64/full-codegen-mips64.cc
index 73212ee5ec37d77d429b84d03404ed1818c28b8b..ebaec584e3a04b04ec5f2acadf78831bc2561d05 100644
--- a/src/full-codegen/mips64/full-codegen-mips64.cc
+++ b/src/full-codegen/mips64/full-codegen-mips64.cc
@@ -1693,18 +1693,18 @@ void FullCodeGenerator::VisitAssignment(Assignment* expr) {
       }
       break;
     case KEYED_SUPER_PROPERTY: {
-      const Register scratch = a1;
       VisitForStackValue(
           property->obj()->AsSuperPropertyReference()->this_var());
-      VisitForAccumulatorValue(
+      VisitForStackValue(
           property->obj()->AsSuperPropertyReference()->home_object());
-      __ Move(scratch, result_register());
       VisitForAccumulatorValue(property->key());
-      PushOperands(scratch, result_register());
+      PushOperand(result_register());
       if (expr->is_compound()) {
         const Register scratch1 = a4;
+        const Register scratch2 = a1;
         __ ld(scratch1, MemOperand(sp, 2 * kPointerSize));
-        PushOperands(scratch1, scratch, result_register());
+        __ ld(scratch2, MemOperand(sp, 1 * kPointerSize));
+        PushOperands(scratch1, scratch2, result_register());
       }
       break;
     }