From: mstarzinger@chromium.org <mstarzinger@chromium.org>
Date: Tue, 23 Sep 2014 11:40:00 +0000 (+0000)
Subject: Move test for reduction of Math.max to unittest.
X-Git-Tag: upstream/4.7.83~6756
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e4da4dbf23e6a8a90aa9742d655c0dd5a6dedd59;p=platform%2Fupstream%2Fv8.git

Move test for reduction of Math.max to unittest.

R=bmeurer@chromium.org
TEST=compiler-unittests/JSBuiltinReducerTest.MathMax

Review URL: https://codereview.chromium.org/598523002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24147 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
---

diff --git a/src/compiler/graph-unittest.cc b/src/compiler/graph-unittest.cc
index 82473f5..881c2cc 100644
--- a/src/compiler/graph-unittest.cc
+++ b/src/compiler/graph-unittest.cc
@@ -743,6 +743,7 @@ Matcher<Node*> IsStore(const Matcher<MachineType>& type_matcher,
     return MakeMatcher(                                                   \
         new IsBinopMatcher(IrOpcode::k##Name, lhs_matcher, rhs_matcher)); \
   }
+IS_BINOP_MATCHER(NumberLessThan)
 IS_BINOP_MATCHER(Word32And)
 IS_BINOP_MATCHER(Word32Sar)
 IS_BINOP_MATCHER(Word32Shl)
diff --git a/src/compiler/graph-unittest.h b/src/compiler/graph-unittest.h
index 3d8f92b..39d3e15 100644
--- a/src/compiler/graph-unittest.h
+++ b/src/compiler/graph-unittest.h
@@ -85,6 +85,9 @@ Matcher<Node*> IsCall(const Matcher<CallDescriptor*>& descriptor_matcher,
                       const Matcher<Node*>& effect_matcher,
                       const Matcher<Node*>& control_matcher);
 
+Matcher<Node*> IsNumberLessThan(const Matcher<Node*>& lhs_matcher,
+                                const Matcher<Node*>& rhs_matcher);
+
 Matcher<Node*> IsLoad(const Matcher<LoadRepresentation>& rep_matcher,
                       const Matcher<Node*>& base_matcher,
                       const Matcher<Node*>& index_matcher,
diff --git a/src/compiler/js-builtin-reducer-unittest.cc b/src/compiler/js-builtin-reducer-unittest.cc
index ca12c50..557ce27 100644
--- a/src/compiler/js-builtin-reducer-unittest.cc
+++ b/src/compiler/js-builtin-reducer-unittest.cc
@@ -7,6 +7,9 @@
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/typer.h"
+#include "testing/gmock-support.h"
+
+using testing::Capture;
 
 namespace v8 {
 namespace internal {
@@ -57,6 +60,71 @@ Type* const kNumberTypes[] = {
 
 
 // -----------------------------------------------------------------------------
+// Math.max
+
+
+TEST_F(JSBuiltinReducerTest, MathMax0) {
+  Handle<JSFunction> f(isolate()->context()->math_max_fun());
+
+  Node* fun = HeapConstant(Unique<HeapObject>::CreateUninitialized(f));
+  Node* call = graph()->NewNode(javascript()->Call(2, NO_CALL_FUNCTION_FLAGS),
+                                fun, UndefinedConstant());
+  Reduction r = Reduce(call);
+
+  EXPECT_TRUE(r.Changed());
+  EXPECT_THAT(r.replacement(), IsNumberConstant(-V8_INFINITY));
+}
+
+
+TEST_F(JSBuiltinReducerTest, MathMax1) {
+  Handle<JSFunction> f(isolate()->context()->math_max_fun());
+
+  TRACED_FOREACH(Type*, t0, kNumberTypes) {
+    Node* p0 = Parameter(t0, 0);
+    Node* fun = HeapConstant(Unique<HeapObject>::CreateUninitialized(f));
+    Node* call = graph()->NewNode(javascript()->Call(3, NO_CALL_FUNCTION_FLAGS),
+                                  fun, UndefinedConstant(), p0);
+    Reduction r = Reduce(call);
+
+    EXPECT_TRUE(r.Changed());
+    EXPECT_THAT(r.replacement(), p0);
+  }
+}
+
+
+TEST_F(JSBuiltinReducerTest, MathMax2) {
+  Handle<JSFunction> f(isolate()->context()->math_max_fun());
+
+  TRACED_FOREACH(Type*, t0, kNumberTypes) {
+    TRACED_FOREACH(Type*, t1, kNumberTypes) {
+      Node* p0 = Parameter(t0, 0);
+      Node* p1 = Parameter(t1, 1);
+      Node* fun = HeapConstant(Unique<HeapObject>::CreateUninitialized(f));
+      Node* call =
+          graph()->NewNode(javascript()->Call(4, NO_CALL_FUNCTION_FLAGS), fun,
+                           UndefinedConstant(), p0, p1);
+      Reduction r = Reduce(call);
+
+      if (t0->Is(Type::Integral32()) && t1->Is(Type::Integral32())) {
+        Capture<Node*> branch;
+        EXPECT_TRUE(r.Changed());
+        EXPECT_THAT(
+            r.replacement(),
+            IsPhi(kMachNone, p1, p0,
+                  IsMerge(IsIfTrue(CaptureEq(&branch)),
+                          IsIfFalse(AllOf(CaptureEq(&branch),
+                                          IsBranch(IsNumberLessThan(p0, p1),
+                                                   graph()->start()))))));
+      } else {
+        EXPECT_FALSE(r.Changed());
+        EXPECT_EQ(IrOpcode::kJSCallFunction, call->opcode());
+      }
+    }
+  }
+}
+
+
+// -----------------------------------------------------------------------------
 // Math.imul
 
 
diff --git a/test/cctest/compiler/test-js-typed-lowering.cc b/test/cctest/compiler/test-js-typed-lowering.cc
index 92edf9b..cf126c2 100644
--- a/test/cctest/compiler/test-js-typed-lowering.cc
+++ b/test/cctest/compiler/test-js-typed-lowering.cc
@@ -1383,45 +1383,3 @@ TEST(Int32Comparisons) {
     }
   }
 }
-
-
-TEST(BuiltinMathMax) {
-  JSTypedLoweringTester R;
-
-  Node* fun = R.HeapConstant(handle(R.isolate->context()->math_max_fun()));
-  Node* call = R.graph.NewNode(R.javascript.Call(2, NO_CALL_FUNCTION_FLAGS),
-                               fun, R.UndefinedConstant());
-  Node* r = R.reduce(call);
-  R.CheckNumberConstant(-V8_INFINITY, r);
-
-  for (size_t i = 0; i < arraysize(kNumberTypes); i++) {
-    Type* t0 = kNumberTypes[i];
-    Node* p0 = R.Parameter(t0, 0);
-    Node* call = R.graph.NewNode(R.javascript.Call(3, NO_CALL_FUNCTION_FLAGS),
-                                 fun, R.UndefinedConstant(), p0);
-    Node* r = R.reduce(call);
-    CHECK_EQ(IrOpcode::kParameter, r->opcode());
-    CHECK_EQ(p0, r);
-  }
-
-  for (size_t i = 0; i < arraysize(kNumberTypes); i++) {
-    for (size_t j = 0; j < arraysize(kNumberTypes); j++) {
-      Type* t0 = kNumberTypes[i];
-      Node* p0 = R.Parameter(t0, 0);
-      Type* t1 = kNumberTypes[j];
-      Node* p1 = R.Parameter(t1, 1);
-      Node* call = R.graph.NewNode(R.javascript.Call(4, NO_CALL_FUNCTION_FLAGS),
-                                   fun, R.UndefinedConstant(), p0, p1);
-      Node* r = R.reduce(call);
-
-      if (t0->Is(Type::Integral32()) && t1->Is(Type::Integral32())) {
-        CHECK_EQ(IrOpcode::kPhi, r->opcode());
-        CHECK(p0 == r->InputAt(0) || p1 == r->InputAt(0));
-        CHECK(p1 == r->InputAt(1) || p0 == r->InputAt(1));
-      } else {
-        CHECK_EQ(IrOpcode::kJSCallFunction, r->opcode());
-        CHECK_EQ(call, r);
-      }
-    }
-  }
-}