[turbofan] First version of loop peeling.

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

Index: test/unittests/compiler/node-test-utils.h
diff --git a/test/unittests/compiler/node-test-utils.h b/test/unittests/compiler/node-test-utils.h
index 02b6e4317551d43c1b5b5eebcf981b093d435c10..736cf0fa411401930182d6a90bb7bd3a1154d92e 100644
--- a/test/unittests/compiler/node-test-utils.h
+++ b/test/unittests/compiler/node-test-utils.h
@@ -35,11 +35,19 @@ Matcher<Node*> IsBranch(const Matcher<Node*>& value_matcher,
                         const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsMerge(const Matcher<Node*>& control0_matcher,
                        const Matcher<Node*>& control1_matcher);
+Matcher<Node*> IsLoop(const Matcher<Node*>& control0_matcher,
+                      const Matcher<Node*>& control1_matcher);
+Matcher<Node*> IsLoop(const Matcher<Node*>& control0_matcher,
+                      const Matcher<Node*>& control1_matcher,
+                      const Matcher<Node*>& control2_matcher);
 Matcher<Node*> IsIfTrue(const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsIfFalse(const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsValueEffect(const Matcher<Node*>& value_matcher);
 Matcher<Node*> IsFinish(const Matcher<Node*>& value_matcher,
                         const Matcher<Node*>& effect_matcher);
+Matcher<Node*> IsReturn(const Matcher<Node*>& value_matcher,
+                        const Matcher<Node*>& effect_matcher,
+                        const Matcher<Node*>& control_matcher);
 Matcher<Node*> IsExternalConstant(
     const Matcher<ExternalReference>& value_matcher);
 Matcher<Node*> IsHeapConstant(
@@ -57,6 +65,11 @@ Matcher<Node*> IsPhi(const Matcher<MachineType>& type_matcher,
                      const Matcher<Node*>& value0_matcher,
                      const Matcher<Node*>& value1_matcher,
                      const Matcher<Node*>& merge_matcher);
+Matcher<Node*> IsPhi(const Matcher<MachineType>& type_matcher,
+                     const Matcher<Node*>& value0_matcher,
+                     const Matcher<Node*>& value1_matcher,
+                     const Matcher<Node*>& value2_matcher,
+                     const Matcher<Node*>& merge_matcher);
 Matcher<Node*> IsEffectPhi(const Matcher<Node*>& effect0_matcher,
                            const Matcher<Node*>& effect1_matcher,
                            const Matcher<Node*>& merge_matcher);