MIPS: [turbofan] Improve code generation for unordered comparisons.

src/compiler/mips64/instruction-selector-mips64.cc

Index: src/compiler/mips64/instruction-selector-mips64.cc
diff --git a/src/compiler/mips64/instruction-selector-mips64.cc b/src/compiler/mips64/instruction-selector-mips64.cc
index 35ad16ba23b51c58ee299bc2bfe29fc85673eefe..a92d31169c47e50eafed9e1e5d1e763476cb2e3d 100644
--- a/src/compiler/mips64/instruction-selector-mips64.cc
+++ b/src/compiler/mips64/instruction-selector-mips64.cc
@@ -909,13 +909,13 @@ void VisitWordCompareZero(InstructionSelector* selector, Node* user,
         cont->OverwriteAndNegateIfEqual(kUnsignedLessThan);
         return VisitWord64Compare(selector, value, cont);
       case IrOpcode::kFloat64Equal:
-        cont->OverwriteAndNegateIfEqual(kUnorderedEqual);
+        cont->OverwriteAndNegateIfEqual(kEqual);
         return VisitFloat64Compare(selector, value, cont);
       case IrOpcode::kFloat64LessThan:
-        cont->OverwriteAndNegateIfEqual(kUnorderedLessThan);
+        cont->OverwriteAndNegateIfEqual(kUnsignedLessThan);
         return VisitFloat64Compare(selector, value, cont);
       case IrOpcode::kFloat64LessThanOrEqual:
-        cont->OverwriteAndNegateIfEqual(kUnorderedLessThanOrEqual);
+        cont->OverwriteAndNegateIfEqual(kUnsignedLessThanOrEqual);
         return VisitFloat64Compare(selector, value, cont);
       case IrOpcode::kProjection:
         // Check if this is the overflow output projection of an
@@ -1049,19 +1049,19 @@ void InstructionSelector::VisitUint64LessThan(Node* node) {
 
 
 void InstructionSelector::VisitFloat64Equal(Node* node) {
-  FlagsContinuation cont(kUnorderedEqual, node);
+  FlagsContinuation cont(kEqual, node);
   VisitFloat64Compare(this, node, &cont);
 }
 
 
 void InstructionSelector::VisitFloat64LessThan(Node* node) {
-  FlagsContinuation cont(kUnorderedLessThan, node);
+  FlagsContinuation cont(kUnsignedLessThan, node);
   VisitFloat64Compare(this, node, &cont);
 }
 
 
 void InstructionSelector::VisitFloat64LessThanOrEqual(Node* node) {
-  FlagsContinuation cont(kUnorderedLessThanOrEqual, node);
+  FlagsContinuation cont(kUnsignedLessThanOrEqual, node);
   VisitFloat64Compare(this, node, &cont);
 }