PPC: [turbofan] Change TruncateFloat32ToUint64 to TryTruncateFloat32ToUint64.

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

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/base/adapters.h"
 #include "src/compiler/instruction-selector-impl.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties.h"
 #include "src/ppc/frames-ppc.h"
 
@@ skipping 77 matching lines @@
 
 void VisitRRO(InstructionSelector* selector, ArchOpcode opcode, Node* node,
               ImmediateMode operand_mode) {
   PPCOperandGenerator g(selector);
   selector->Emit(opcode, g.DefineAsRegister(node),
                  g.UseRegister(node->InputAt(0)),
                  g.UseOperand(node->InputAt(1), operand_mode));
 }
 
 
+#if V8_TARGET_ARCH_PPC64
+void VisitTryTruncateDouble(InstructionSelector* selector, ArchOpcode opcode,
+                            Node* node) {
+  PPCOperandGenerator g(selector);
+  InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))};
+  InstructionOperand outputs[2];
+  size_t output_count = 0;
+  outputs[output_count++] = g.DefineAsRegister(node);
+
+  Node* success_output = NodeProperties::FindProjection(node, 1);
+  if (success_output) {
+    outputs[output_count++] = g.DefineAsRegister(success_output);
+  }
+
+  selector->Emit(opcode, output_count, outputs, 1, inputs);
+}
+#endif
+
+
 // Shared routine for multiple binary operations.
 template <typename Matcher>
 void VisitBinop(InstructionSelector* selector, Node* node,
                 InstructionCode opcode, ImmediateMode operand_mode,
                 FlagsContinuation* cont) {
   PPCOperandGenerator g(selector);
   Matcher m(node);
   InstructionOperand inputs[4];
   size_t input_count = 0;
   InstructionOperand outputs[2];
@@ skipping 813 matching lines @@
 }
 
 
 void InstructionSelector::VisitChangeFloat64ToUint32(Node* node) {
   VisitRR(this, kPPC_DoubleToUint32, node);
 }
 
 
 #if V8_TARGET_ARCH_PPC64
 void InstructionSelector::VisitTryTruncateFloat32ToInt64(Node* node) {
-  PPCOperandGenerator g(this);
-
-  InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))};
-  InstructionOperand outputs[2];
-  size_t output_count = 0;
-  outputs[output_count++] = g.DefineAsRegister(node);
-
-  Node* success_output = NodeProperties::FindProjection(node, 1);
-  if (success_output) {
-    outputs[output_count++] = g.DefineAsRegister(success_output);
-  }
-
-  Emit(kPPC_DoubleToInt64, output_count, outputs, 1, inputs);
+  VisitTryTruncateDouble(this, kPPC_DoubleToInt64, node);
 }
 
 
 void InstructionSelector::VisitTryTruncateFloat64ToInt64(Node* node) {
-  PPCOperandGenerator g(this);
-
-  InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))};
-  InstructionOperand outputs[2];
-  size_t output_count = 0;
-  outputs[output_count++] = g.DefineAsRegister(node);
-
-  Node* success_output = NodeProperties::FindProjection(node, 1);
-  if (success_output) {
-    outputs[output_count++] = g.DefineAsRegister(success_output);
-  }
-
-  Emit(kPPC_DoubleToInt64, output_count, outputs, 1, inputs);
+  VisitTryTruncateDouble(this, kPPC_DoubleToInt64, node);
 }
 
 
 void InstructionSelector::VisitTryTruncateFloat32ToUint64(Node* node) {
-  if (NodeProperties::FindProjection(node, 1)) {
-    // TODO(ppc): implement the second return value.
-    UNIMPLEMENTED();
-  }
-  VisitRR(this, kPPC_DoubleToUint64, node);
+  VisitTryTruncateDouble(this, kPPC_DoubleToUint64, node);
 }
 
 
 void InstructionSelector::VisitTryTruncateFloat64ToUint64(Node* node) {
-  PPCOperandGenerator g(this);
-
-  InstructionOperand inputs[] = {g.UseRegister(node->InputAt(0))};
-  InstructionOperand outputs[2];
-  size_t output_count = 0;
-  outputs[output_count++] = g.DefineAsRegister(node);
-
-  Node* success_output = NodeProperties::FindProjection(node, 1);
-  if (success_output) {
-    outputs[output_count++] = g.DefineAsRegister(success_output);
-  }
-
-  Emit(kPPC_DoubleToUint64, output_count, outputs, 1, inputs);
+  VisitTryTruncateDouble(this, kPPC_DoubleToUint64, node);
 }
 
 
 void InstructionSelector::VisitChangeInt32ToInt64(Node* node) {
   // TODO(mbrandy): inspect input to see if nop is appropriate.
   VisitRR(this, kPPC_ExtendSignWord32, node);
 }
 
 
 void InstructionSelector::VisitChangeUint32ToUint64(Node* node) {
@@ skipping 738 matching lines @@
          MachineOperatorBuilder::kFloat64RoundTruncate |
          MachineOperatorBuilder::kFloat64RoundTiesAway |
          MachineOperatorBuilder::kWord32Popcnt |
          MachineOperatorBuilder::kWord64Popcnt;
   // We omit kWord32ShiftIsSafe as s[rl]w use 0x3f as a mask rather than 0x1f.
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8