MIPS: Don't emit code for instructions that are hiding behind an HSoftDeoptimize

src/mips/lithium-codegen-mips.cc

Index: src/mips/lithium-codegen-mips.cc
diff --git a/src/mips/lithium-codegen-mips.cc b/src/mips/lithium-codegen-mips.cc
index 02ca14534a7512d21e5c3e2db9b5a241e5a45a99..05afc4138307792d5aee9d701e6856f45e3ea14f 100644
--- a/src/mips/lithium-codegen-mips.cc
+++ b/src/mips/lithium-codegen-mips.cc
@@ -5620,6 +5620,11 @@ void LCodeGen::DoDeoptimize(LDeoptimize* instr) {
 }
 
 
+void LCodeGen::DoDummyUse(LDummyUse* instr) {
+  // Nothing to see here, move on!
+}
+
+
 void LCodeGen::DoDeleteProperty(LDeleteProperty* instr) {
   Register object = ToRegister(instr->object());
   Register key = ToRegister(instr->key());