MIPS64: [turbofan] Support Float64Min and Float64Max.

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 b4e811f0f8a45051fc5a5935e018893b6e504bd1..3e78277ffee18f47cf95417487eb1535aea1c034 100644
--- a/src/compiler/mips/instruction-selector-mips.cc
+++ b/src/compiler/mips/instruction-selector-mips.cc
@@ -1059,6 +1059,12 @@ 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)) &&

[paul.l..., 2015/05/15 19:07:48]

You also need to provide implementations for the 4 visitor functions:
InstructionSelector::VisitFloat32Max() ... VisitFloat64Min(). They are currently
UNREACHABLE().

[balazs.kilvady, 2015/05/18 12:24:00]

Done.

       IsFp64Mode()) {
     flags |= MachineOperatorBuilder::kFloat64RoundDown |