MIPS: [turbofan] Fix implementation of Float64Min.

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 ce40753995db0a93dded1fd3b1c8e03b1b6a4f84..8ecc25e9e084951baa2c6d1626e18a894a5cd67d 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -452,28 +452,16 @@ void InstructionSelector::VisitFloat64Mod(Node* node) {
 }
 
 
-void InstructionSelector::VisitFloat32Max(Node* node) {
-  DCHECK(kArchVariant == kMips32r6);
-  VisitRRR(this, kMipsMaxS, node);
-}
+void InstructionSelector::VisitFloat32Max(Node* node) { UNREACHABLE(); }
 
 
-void InstructionSelector::VisitFloat64Max(Node* node) {
-  DCHECK(kArchVariant == kMips32r6);
-  VisitRRR(this, kMipsMaxD, node);
-}
+void InstructionSelector::VisitFloat64Max(Node* node) { UNREACHABLE(); }
 
 
-void InstructionSelector::VisitFloat32Min(Node* node) {
-  DCHECK(kArchVariant == kMips32r6);
-  VisitRRR(this, kMipsMinS, node);
-}
+void InstructionSelector::VisitFloat32Min(Node* node) { UNREACHABLE(); }
 
 
-void InstructionSelector::VisitFloat64Min(Node* node) {
-  DCHECK(kArchVariant == kMips32r6);
-  VisitRRR(this, kMipsMinD, node);
-}
+void InstructionSelector::VisitFloat64Min(Node* node) { UNREACHABLE(); }
 
 
 void InstructionSelector::VisitFloat32Abs(Node* node) {
@@ -1095,12 +1083,6 @@ void InstructionSelector::VisitFloat64InsertHighWord32(Node* node) {
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
   MachineOperatorBuilder::Flags flags = MachineOperatorBuilder::kNoFlags;
-  if (IsMipsArchVariant(kMips32r6)) {
-    flags |= MachineOperatorBuilder::kFloat32Max |
-             MachineOperatorBuilder::kFloat32Min |
-             MachineOperatorBuilder::kFloat64Max |
-             MachineOperatorBuilder::kFloat64Min;
-  }
   if ((IsMipsArchVariant(kMips32r2) || IsMipsArchVariant(kMips32r6)) &&
       IsFp64Mode()) {
     flags |= MachineOperatorBuilder::kFloat64RoundDown |