MIPS: [turbofan] Properly implement Float64/32 Min/Max instructions.

test/unittests/compiler/mips/instruction-selector-mips-unittest.cc

Index: test/unittests/compiler/mips/instruction-selector-mips-unittest.cc
diff --git a/test/unittests/compiler/mips/instruction-selector-mips-unittest.cc b/test/unittests/compiler/mips/instruction-selector-mips-unittest.cc
index a7f77fd06bf36f97d44fc5877d5cfc3b754d413a..a16ad7a31fc789c30939a9d787a860fb83389790 100644
--- a/test/unittests/compiler/mips/instruction-selector-mips-unittest.cc
+++ b/test/unittests/compiler/mips/instruction-selector-mips-unittest.cc
@@ -845,6 +845,71 @@ TEST_F(InstructionSelectorTest, Float64Abs) {
   EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
 }
 
+
+TEST_F(InstructionSelectorTest, Float32Max) {
+  StreamBuilder m(this, kMachFloat32, kMachFloat32, kMachFloat32);
+  Node* const p0 = m.Parameter(0);
+  Node* const p1 = m.Parameter(1);
+  Node* const n = m.Float32Max(p0, p1);
+  m.Return(n);
+  Stream s = m.Build();
+  // Float32Max is `(b < a) ? a : b`.
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kMipsFloat32Max, s[0]->arch_opcode());
+  ASSERT_EQ(2U, s[0]->InputCount());
+  ASSERT_EQ(1U, s[0]->OutputCount());
+  EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
+}
+
+
+TEST_F(InstructionSelectorTest, Float32Min) {
+  StreamBuilder m(this, kMachFloat32, kMachFloat32, kMachFloat32);
+  Node* const p0 = m.Parameter(0);
+  Node* const p1 = m.Parameter(1);
+  Node* const n = m.Float32Min(p0, p1);
+  m.Return(n);
+  Stream s = m.Build();
+  // Float32Min is `(a < b) ? a : b`.
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kMipsFloat32Min, s[0]->arch_opcode());
+  ASSERT_EQ(2U, s[0]->InputCount());
+  ASSERT_EQ(1U, s[0]->OutputCount());
+  EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
+}
+
+
+TEST_F(InstructionSelectorTest, Float64Max) {
+  StreamBuilder m(this, kMachFloat64, kMachFloat64, kMachFloat64);
+  Node* const p0 = m.Parameter(0);
+  Node* const p1 = m.Parameter(1);
+  Node* const n = m.Float64Max(p0, p1);
+  m.Return(n);
+  Stream s = m.Build();
+  // Float64Max is `(b < a) ? a : b`.
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kMipsFloat64Max, s[0]->arch_opcode());
+  ASSERT_EQ(2U, s[0]->InputCount());
+  ASSERT_EQ(1U, s[0]->OutputCount());
+  EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
+}
+
+
+TEST_F(InstructionSelectorTest, Float64Min) {
+  StreamBuilder m(this, kMachFloat64, kMachFloat64, kMachFloat64);
+  Node* const p0 = m.Parameter(0);
+  Node* const p1 = m.Parameter(1);
+  Node* const n = m.Float64Min(p0, p1);
+  m.Return(n);
+  Stream s = m.Build();
+  // Float64Min is `(a < b) ? a : b`.
+  ASSERT_EQ(1U, s.size());
+  EXPECT_EQ(kMipsFloat64Min, s[0]->arch_opcode());
+  ASSERT_EQ(2U, s[0]->InputCount());
+  ASSERT_EQ(1U, s[0]->OutputCount());
+  EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
+}
+
+
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8