PPC/s390: [wasm] TrapIf and TrapUnless TurboFan operators implemented on arm.

src/compiler/s390/instruction-selector-s390.cc

 // Copyright 2015 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/s390/frames-s390.h"
 
@@ skipping 399 matching lines @@
 
   DCHECK_NE(0u, input_count);
   DCHECK_NE(0u, output_count);
   DCHECK_GE(arraysize(inputs), input_count);
   DCHECK_GE(arraysize(outputs), output_count);
 
   opcode = cont->Encode(opcode);
   if (cont->IsDeoptimize()) {
     selector->EmitDeoptimize(opcode, output_count, outputs, input_count, inputs,
                              cont->reason(), cont->frame_state());
+  } else if (cont->IsTrap()) {
+    inputs[input_count++] = g.UseImmediate(cont->trap_id());
+    selector->Emit(opcode, output_count, outputs, input_count, inputs);
   } else {
     selector->Emit(opcode, output_count, outputs, input_count, inputs);
   }
 }
 
 // Shared routine for multiple binary operations.
 template <typename Matcher>
 void VisitBinop(InstructionSelector* selector, Node* node, ArchOpcode opcode,
                 OperandModes operand_mode) {
   FlagsContinuation cont;
@@ skipping 1285 matching lines @@
                   InstructionOperand left, InstructionOperand right,
                   FlagsContinuation* cont) {
   S390OperandGenerator g(selector);
   opcode = cont->Encode(opcode);
   if (cont->IsBranch()) {
     selector->Emit(opcode, g.NoOutput(), left, right,
                    g.Label(cont->true_block()), g.Label(cont->false_block()));
   } else if (cont->IsDeoptimize()) {
     selector->EmitDeoptimize(opcode, g.NoOutput(), left, right, cont->reason(),
                              cont->frame_state());
+  } else if (cont->IsSet()) {
+    selector->Emit(opcode, g.DefineAsRegister(cont->result()), left, right);
   } else {
-    DCHECK(cont->IsSet());
-    selector->Emit(opcode, g.DefineAsRegister(cont->result()), left, right);
+    DCHECK(cont->IsTrap());
+    selector->Emit(opcode, g.NoOutput(), left, right,
+                   g.UseImmediate(cont->trap_id()));
   }
 }
 
 // Shared routine for multiple word compare operations.
 void VisitWordCompare(InstructionSelector* selector, Node* node,
                       InstructionCode opcode, FlagsContinuation* cont,
                       bool commutative, OperandModes immediate_mode) {
   S390OperandGenerator g(selector);
   Node* left = node->InputAt(0);
   Node* right = node->InputAt(1);
@@ skipping 260 matching lines @@
   VisitWord32CompareZero(this, node, node->InputAt(0), &cont);
 }
 
 void InstructionSelector::VisitDeoptimizeUnless(Node* node) {
   FlagsContinuation cont = FlagsContinuation::ForDeoptimize(
       kEqual, DeoptimizeReasonOf(node->op()), node->InputAt(1));
   VisitWord32CompareZero(this, node, node->InputAt(0), &cont);
 }
 
 void InstructionSelector::VisitTrapIf(Node* node, Runtime::FunctionId func_id) {
-  UNREACHABLE();
+  FlagsContinuation cont =
+      FlagsContinuation::ForTrap(kNotEqual, func_id, node->InputAt(1));
+  VisitWord32CompareZero(this, node, node->InputAt(0), &cont);
 }
 
 void InstructionSelector::VisitTrapUnless(Node* node,
                                           Runtime::FunctionId func_id) {
-  UNREACHABLE();
+  FlagsContinuation cont =
+      FlagsContinuation::ForTrap(kEqual, func_id, node->InputAt(1));
+  VisitWord32CompareZero(this, node, node->InputAt(0), &cont);
 }
 
 void InstructionSelector::VisitSwitch(Node* node, const SwitchInfo& sw) {
   S390OperandGenerator g(this);
   InstructionOperand value_operand = g.UseRegister(node->InputAt(0));
 
   // Emit either ArchTableSwitch or ArchLookupSwitch.
   size_t table_space_cost = 4 + sw.value_range;
   size_t table_time_cost = 3;
   size_t lookup_space_cost = 3 + 2 * sw.case_count;
@@ skipping 276 matching lines @@
 // static
 MachineOperatorBuilder::AlignmentRequirements
 InstructionSelector::AlignmentRequirements() {
   return MachineOperatorBuilder::AlignmentRequirements::
       FullUnalignedAccessSupport();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8