[turbofan] Remove the FloatXXSubPreserveNan operators.

test/unittests/compiler/x64/instruction-selector-x64-unittest.cc

Index: test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
diff --git a/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc b/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
index d6ed73266cabaf990b956f36a76433c51dc6207e..0330d82590b17fc8e699cc5694c0df1a3ffe917d 100644
--- a/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
+++ b/test/unittests/compiler/x64/instruction-selector-x64-unittest.cc
@@ -1134,71 +1134,6 @@ TEST_F(InstructionSelectorTest, Float64BinopArithmetic) {
   }
 }
 
-
-TEST_F(InstructionSelectorTest, Float32SubWithMinusZeroAndParameter) {
-  {
-    StreamBuilder m(this, MachineType::Float32(), MachineType::Float32());
-    Node* const p0 = m.Parameter(0);
-    Node* const n = m.Float32Sub(m.Float32Constant(-0.0f), p0);
-    m.Return(n);
-    Stream s = m.Build();
-    ASSERT_EQ(1U, s.size());
-    EXPECT_EQ(kSSEFloat32Neg, s[0]->arch_opcode());
-    ASSERT_EQ(1U, s[0]->InputCount());
-    EXPECT_EQ(s.ToVreg(p0), s.ToVreg(s[0]->InputAt(0)));
-    ASSERT_EQ(1U, s[0]->OutputCount());
-    EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
-    EXPECT_EQ(kFlags_none, s[0]->flags_mode());
-  }
-  {
-    StreamBuilder m(this, MachineType::Float32(), MachineType::Float32());
-    Node* const p0 = m.Parameter(0);
-    Node* const n = m.Float32Sub(m.Float32Constant(-0.0f), p0);
-    m.Return(n);
-    Stream s = m.Build(AVX);
-    ASSERT_EQ(1U, s.size());
-    EXPECT_EQ(kAVXFloat32Neg, s[0]->arch_opcode());
-    ASSERT_EQ(1U, s[0]->InputCount());
-    EXPECT_EQ(s.ToVreg(p0), s.ToVreg(s[0]->InputAt(0)));
-    ASSERT_EQ(1U, s[0]->OutputCount());
-    EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
-    EXPECT_EQ(kFlags_none, s[0]->flags_mode());
-  }
-}
-
-
-TEST_F(InstructionSelectorTest, Float64SubWithMinusZeroAndParameter) {
-  {
-    StreamBuilder m(this, MachineType::Float64(), MachineType::Float64());
-    Node* const p0 = m.Parameter(0);
-    Node* const n = m.Float64Sub(m.Float64Constant(-0.0), p0);
-    m.Return(n);
-    Stream s = m.Build();
-    ASSERT_EQ(1U, s.size());
-    EXPECT_EQ(kSSEFloat64Neg, s[0]->arch_opcode());
-    ASSERT_EQ(1U, s[0]->InputCount());
-    EXPECT_EQ(s.ToVreg(p0), s.ToVreg(s[0]->InputAt(0)));
-    ASSERT_EQ(1U, s[0]->OutputCount());
-    EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
-    EXPECT_EQ(kFlags_none, s[0]->flags_mode());
-  }
-  {
-    StreamBuilder m(this, MachineType::Float64(), MachineType::Float64());
-    Node* const p0 = m.Parameter(0);
-    Node* const n = m.Float64Sub(m.Float64Constant(-0.0), p0);
-    m.Return(n);
-    Stream s = m.Build(AVX);
-    ASSERT_EQ(1U, s.size());
-    EXPECT_EQ(kAVXFloat64Neg, s[0]->arch_opcode());
-    ASSERT_EQ(1U, s[0]->InputCount());
-    EXPECT_EQ(s.ToVreg(p0), s.ToVreg(s[0]->InputAt(0)));
-    ASSERT_EQ(1U, s[0]->OutputCount());
-    EXPECT_EQ(s.ToVreg(n), s.ToVreg(s[0]->Output()));
-    EXPECT_EQ(kFlags_none, s[0]->flags_mode());
-  }
-}
-
-
 // -----------------------------------------------------------------------------
 // Miscellaneous.