MIPS: [turbofan] Add new Float32Abs and Float64Abs operators.

src/compiler/mips/instruction-selector-mips.cc

Index: src/compiler/mips/instruction-selector-mips.cc
diff --git a/src/compiler/mips/instruction-selector-mips.cc b/src/compiler/mips/instruction-selector-mips.cc
index 61a5a1cfc3f7847a3b2e8dbd0bc0b0514625e09d..28e030fa1aa87fc92f32af17d1832573ffa37f69 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -463,10 +463,14 @@ void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); }
 void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
 
 
-void InstructionSelector::VisitFloat32Abs(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32Abs(Node* node) {
+  VisitRR(this, kMipsAbsS, node);
+}
 
 
-void InstructionSelector::VisitFloat64Abs(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat64Abs(Node* node) {
+  VisitRR(this, kMipsAbsD, node);
+}
 
 
 void InstructionSelector::VisitFloat32Sqrt(Node* node) {
@@ -970,11 +974,14 @@ void InstructionSelector::VisitFloat64InsertHighWord32(Node* node) {
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
+  MachineOperatorBuilder::Flags flags =
+      MachineOperatorBuilder::kFloat32Abs | MachineOperatorBuilder::kFloat64Abs;
+
   if (IsMipsArchVariant(kMips32r2) || IsMipsArchVariant(kMips32r6)) {
-    return MachineOperatorBuilder::kFloat64RoundDown |
-           MachineOperatorBuilder::kFloat64RoundTruncate;
+    flags |= MachineOperatorBuilder::kFloat64RoundDown |
+             MachineOperatorBuilder::kFloat64RoundTruncate;
   }
-  return MachineOperatorBuilder::kNoFlags;
+  return flags;
 }
 
 }  // namespace compiler