MIPS: [turbofan] Implement Float32Round(TiesEven|RoundUp|RoundDown|Truncate).

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 0877e0005e4bf7a9a16196cbe11ddfc762df0f89..80079c2ef663fc4b1c8ec1e32010c0fa963301a9 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -647,7 +647,9 @@ void InstructionSelector::VisitFloat64Sqrt(Node* node) {
 }
 
 
-void InstructionSelector::VisitFloat32RoundDown(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32RoundDown(Node* node) {
+  VisitRR(this, kMipsFloat32RoundDown, node);
+}
 
 
 void InstructionSelector::VisitFloat64RoundDown(Node* node) {
@@ -655,7 +657,9 @@ void InstructionSelector::VisitFloat64RoundDown(Node* node) {
 }
 
 
-void InstructionSelector::VisitFloat32RoundUp(Node* node) { UNREACHABLE(); }
+void InstructionSelector::VisitFloat32RoundUp(Node* node) {
+  VisitRR(this, kMipsFloat32RoundUp, node);
+}
 
 
 void InstructionSelector::VisitFloat64RoundUp(Node* node) {
@@ -664,7 +668,7 @@ void InstructionSelector::VisitFloat64RoundUp(Node* node) {
 
 
 void InstructionSelector::VisitFloat32RoundTruncate(Node* node) {
-  UNREACHABLE();
+  VisitRR(this, kMipsFloat32RoundTruncate, node);
 }
 
 
@@ -679,7 +683,7 @@ void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) {
 
 
 void InstructionSelector::VisitFloat32RoundTiesEven(Node* node) {
-  UNREACHABLE();
+  VisitRR(this, kMipsFloat32RoundTiesEven, node);
 }
 
 
@@ -1199,7 +1203,11 @@ InstructionSelector::SupportedMachineOperatorFlags() {
   return flags | MachineOperatorBuilder::kFloat64Min |
          MachineOperatorBuilder::kFloat64Max |
          MachineOperatorBuilder::kFloat32Min |
-         MachineOperatorBuilder::kFloat32Max;
+         MachineOperatorBuilder::kFloat32Max |
+         MachineOperatorBuilder::kFloat32RoundDown |
+         MachineOperatorBuilder::kFloat32RoundUp |
+         MachineOperatorBuilder::kFloat32RoundTruncate |
+         MachineOperatorBuilder::kFloat32RoundTiesEven;
 }
 
 }  // namespace compiler