VM(RegExp): Allow OSR optimization of RegExp :matcher functions.

runtime/vm/intermediate_language_mips.cc

Index: runtime/vm/intermediate_language_mips.cc
diff --git a/runtime/vm/intermediate_language_mips.cc b/runtime/vm/intermediate_language_mips.cc
index e513f5ed3f22e3d5ac63481219c66b9825492c87..f18a4f34258bfabd8f23caba2ebe478d8302f3f9 100644
--- a/runtime/vm/intermediate_language_mips.cc
+++ b/runtime/vm/intermediate_language_mips.cc
@@ -5938,33 +5938,6 @@ void DebugStepCheckInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
 }
 
 
-LocationSummary* GrowRegExpStackInstr::MakeLocationSummary(Zone* zone,
-                                                           bool opt) const {
-  const intptr_t kNumInputs = 1;
-  const intptr_t kNumTemps = 0;
-  LocationSummary* locs = new (zone)
-      LocationSummary(zone, kNumInputs, kNumTemps, LocationSummary::kCall);
-  locs->set_in(0, Location::RegisterLocation(T0));
-  locs->set_out(0, Location::RegisterLocation(T0));
-  return locs;
-}
-
-
-void GrowRegExpStackInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
-  const Register typed_data = locs()->in(0).reg();
-  const Register result = locs()->out(0).reg();
-  __ Comment("GrowRegExpStackInstr");
-  __ addiu(SP, SP, Immediate(-2 * kWordSize));
-  __ LoadObject(TMP, Object::null_object());
-  __ sw(TMP, Address(SP, 1 * kWordSize));
-  __ sw(typed_data, Address(SP, 0 * kWordSize));
-  compiler->GenerateRuntimeCall(TokenPosition::kNoSource, deopt_id(),
-                                kGrowRegExpStackRuntimeEntry, 1, locs());
-  __ lw(result, Address(SP, 1 * kWordSize));
-  __ addiu(SP, SP, Immediate(2 * kWordSize));
-}
-
-
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS