[wasm] Int64Lowering of I64ReinterpretF64.

test/unittests/compiler/node-test-utils.cc

Index: test/unittests/compiler/node-test-utils.cc
diff --git a/test/unittests/compiler/node-test-utils.cc b/test/unittests/compiler/node-test-utils.cc
index dace110e0ca03824d0f01b4d5e44cc34064d2308..a5b72f4b54a38305cc3aff2d5325f8551e71db17 100644
--- a/test/unittests/compiler/node-test-utils.cc
+++ b/test/unittests/compiler/node-test-utils.cc
@@ -1330,6 +1330,27 @@ class IsStoreMatcher final : public NodeMatcher {
   const Matcher<Node*> control_matcher_;
 };
 
+class IsStackSlotMatcher final : public NodeMatcher {
+ public:
+  explicit IsStackSlotMatcher(const Matcher<MachineRepresentation>& rep_matcher)
+      : NodeMatcher(IrOpcode::kStackSlot), rep_matcher_(rep_matcher) {}
+
+  void DescribeTo(std::ostream* os) const final {
+    NodeMatcher::DescribeTo(os);
+    *os << " whose rep (";
+    rep_matcher_.DescribeTo(os);
+    *os << ")";
+  }
+
+  bool MatchAndExplain(Node* node, MatchResultListener* listener) const final {
+    return (NodeMatcher::MatchAndExplain(node, listener) &&
+            PrintMatchAndExplain(OpParameter<MachineRepresentation>(node),
+                                 "rep", rep_matcher_, listener));
+  }
+
+ private:
+  const Matcher<MachineRepresentation> rep_matcher_;
+};
 
 class IsToNumberMatcher final : public NodeMatcher {
  public:
@@ -2123,6 +2144,9 @@ Matcher<Node*> IsStore(const Matcher<StoreRepresentation>& rep_matcher,
                                         effect_matcher, control_matcher));
 }
 
+Matcher<Node*> IsStackSlot(const Matcher<MachineRepresentation>& rep_matcher) {
+  return MakeMatcher(new IsStackSlotMatcher(rep_matcher));
+}
 
 Matcher<Node*> IsToNumber(const Matcher<Node*>& base_matcher,
                           const Matcher<Node*>& context_matcher,