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

src/compiler/arm64/instruction-selector-arm64.cc

Index: src/compiler/arm64/instruction-selector-arm64.cc
diff --git a/src/compiler/arm64/instruction-selector-arm64.cc b/src/compiler/arm64/instruction-selector-arm64.cc
index d23b54d1da2c47412985b714a1ea906d94fbb149..c9d53ecf88e76d7a94c21a80b9a22178e53c85e4 100644
--- a/src/compiler/arm64/instruction-selector-arm64.cc
+++ b/src/compiler/arm64/instruction-selector-arm64.cc
@@ -891,6 +891,34 @@ void InstructionSelector::VisitFloat64Sqrt(Node* node) {
 }
 
 
+void InstructionSelector::VisitFloat64Floor(Node* node) {
+  Arm64OperandGenerator g(this);

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

How about adding a common VisitRRFloat64 helper?

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

Done.

+  Emit(kArm64Float64Floor, g.DefineAsRegister(node),
+       g.UseRegister(node->InputAt(0)));
+}
+
+
+void InstructionSelector::VisitFloat64Ceil(Node* node) {
+  Arm64OperandGenerator g(this);
+  Emit(kArm64Float64Ceil, g.DefineAsRegister(node),
+       g.UseRegister(node->InputAt(0)));
+}
+
+
+void InstructionSelector::VisitFloat64RoundTruncate(Node* node) {
+  Arm64OperandGenerator g(this);
+  Emit(kArm64Float64RoundTruncate, g.DefineAsRegister(node),
+       g.UseRegister(node->InputAt(0)));
+}
+
+
+void InstructionSelector::VisitFloat64RoundTiesAway(Node* node) {
+  Arm64OperandGenerator g(this);
+  Emit(kArm64Float64RoundTiesAway, g.DefineAsRegister(node),
+       g.UseRegister(node->InputAt(0)));
+}
+
+
 void InstructionSelector::VisitCall(Node* node) {
   Arm64OperandGenerator g(this);
   CallDescriptor* descriptor = OpParameter<CallDescriptor*>(node);
@@ -1289,7 +1317,10 @@ void InstructionSelector::VisitFloat64LessThanOrEqual(Node* node) {
 // static
 MachineOperatorBuilder::Flags
 InstructionSelector::SupportedMachineOperatorFlags() {
-  return MachineOperatorBuilder::Flag::kNoFlags;
+  return MachineOperatorBuilder::Flag::kFloat64Floor |
+         MachineOperatorBuilder::Flag::kFloat64Ceil |
+         MachineOperatorBuilder::Flag::kFloat64RoundTruncate |
+         MachineOperatorBuilder::Flag::kFloat64RoundTiesAway;
 }
 }  // namespace compiler
 }  // namespace internal