Add floor, ceil, round (truncate) instructions for ia32, x64 (if SSE4.1) and

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index 17c227acc70d4636d409b94487ae48b96a6a33fc..ab58c051eb83a64c81b2935d8eb1c699c5cba06a 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -554,6 +554,10 @@ MachineType InstructionSelector::GetMachineType(Node* node) {
     case IrOpcode::kFloat64Div:
     case IrOpcode::kFloat64Mod:
     case IrOpcode::kFloat64Sqrt:
+    case IrOpcode::kFloat64Floor:
+    case IrOpcode::kFloat64Ceil:
+    case IrOpcode::kFloat64RoundTruncate:
+    case IrOpcode::kFloat64RoundTiesAway:
       return kMachFloat64;
     case IrOpcode::kFloat64Equal:
     case IrOpcode::kFloat64LessThan:
@@ -743,15 +747,28 @@ void InstructionSelector::VisitNode(Node* node) {
       return VisitFloat64LessThan(node);
     case IrOpcode::kFloat64LessThanOrEqual:
       return VisitFloat64LessThanOrEqual(node);
+    case IrOpcode::kFloat64Floor:
+      return MarkAsDouble(node), VisitFloat64Floor(node);
+    case IrOpcode::kFloat64Ceil:
+      return MarkAsDouble(node), VisitFloat64Ceil(node);
+    case IrOpcode::kFloat64RoundTruncate:
+      return MarkAsDouble(node), VisitFloat64RoundTruncate(node);
+    case IrOpcode::kFloat64RoundTiesAway:
+      return MarkAsDouble(node), VisitFloat64RoundTiesAway(node);
     case IrOpcode::kLoadStackPointer:
       return VisitLoadStackPointer(node);
     default:
-      V8_Fatal(__FILE__, __LINE__, "Unexpected operator #%d:%s @ node #%d",
-               node->opcode(), node->op()->mnemonic(), node->id());
+      UnsupportedOperator(node);
+      break;
   }
 }
 
 
+void InstructionSelector::UnsupportedOperator(Node* node) {
+  V8_Fatal(__FILE__, __LINE__, "Unexpected operator #%d:%s @ node #%d",
+           node->opcode(), node->op()->mnemonic(), node->id());
+}
+

[Benedikt Meurer, 2014/10/26 12:48:05]

Nit: missing newline.

[sigurds, 2014/10/28 12:47:22]

Done.

 #if V8_TURBOFAN_BACKEND
 
 void InstructionSelector::VisitTruncateFloat64ToInt32(Node* node) {