[wasm] Mark all 64-bit instructions as supported on 32-bit platforms.

src/compiler/wasm-compiler.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/compiler/wasm-compiler.h"
 
 #include "src/isolate-inl.h"
 
 #include "src/base/platform/elapsed-timer.h"
 #include "src/base/platform/platform.h"
@@ skipping 453 matching lines @@
       op = m->Uint32LessThan();
       std::swap(left, right);
       break;
     case wasm::kExprI32GeU:
       op = m->Uint32LessThanOrEqual();
       std::swap(left, right);
       break;
     case wasm::kExprI64And:
       op = m->Word64And();
       break;
-    // todo(ahaas): I added a list of missing instructions here to make merging
-    // easier when I do them one by one.
-    // kExprI64Add:
     case wasm::kExprI64Add:
       op = m->Int64Add();
       break;
-    // kExprI64Sub:
     case wasm::kExprI64Sub:
       op = m->Int64Sub();
       break;
-    // kExprI64Mul:
     case wasm::kExprI64Mul:
       op = m->Int64Mul();
       break;
-    // kExprI64DivS:
     case wasm::kExprI64DivS:
       return BuildI64DivS(left, right, position);
-    // kExprI64DivU:
     case wasm::kExprI64DivU:
       return BuildI64DivU(left, right, position);
-    // kExprI64RemS:
     case wasm::kExprI64RemS:
       return BuildI64RemS(left, right, position);
-    // kExprI64RemU:
     case wasm::kExprI64RemU:
       return BuildI64RemU(left, right, position);
     case wasm::kExprI64Ior:
       op = m->Word64Or();
       break;
-// kExprI64Xor:
     case wasm::kExprI64Xor:
       op = m->Word64Xor();
       break;
-// kExprI64Shl:
     case wasm::kExprI64Shl:
       op = m->Word64Shl();
       right = MaskShiftCount64(right);
       break;
-    // kExprI64ShrU:
     case wasm::kExprI64ShrU:
       op = m->Word64Shr();
       right = MaskShiftCount64(right);
       break;
-    // kExprI64ShrS:
     case wasm::kExprI64ShrS:
       op = m->Word64Sar();
       right = MaskShiftCount64(right);
       break;
-    // kExprI64Eq:
     case wasm::kExprI64Eq:
       op = m->Word64Equal();
       break;
-// kExprI64Ne:
     case wasm::kExprI64Ne:
       return Invert(Binop(wasm::kExprI64Eq, left, right));
-// kExprI64LtS:
     case wasm::kExprI64LtS:
       op = m->Int64LessThan();
       break;
     case wasm::kExprI64LeS:
       op = m->Int64LessThanOrEqual();
       break;
     case wasm::kExprI64LtU:
       op = m->Uint64LessThan();
       break;
     case wasm::kExprI64LeU:
@@ skipping 248 matching lines @@
     }
     case wasm::kExprF64Tan: {
       return BuildF64Tan(input);
     }
     case wasm::kExprF64Exp: {
       return BuildF64Exp(input);
     }
     case wasm::kExprF64Log: {
       return BuildF64Log(input);
     }
-    // kExprI32ConvertI64:
     case wasm::kExprI32ConvertI64:
       op = m->TruncateInt64ToInt32();
       break;
-    // kExprI64SConvertI32:
     case wasm::kExprI64SConvertI32:
       op = m->ChangeInt32ToInt64();
       break;
-    // kExprI64UConvertI32:
     case wasm::kExprI64UConvertI32:
       op = m->ChangeUint32ToUint64();
       break;
-    // kExprF64ReinterpretI64:
     case wasm::kExprF64ReinterpretI64:
       op = m->BitcastInt64ToFloat64();
       break;
-    // kExprI64ReinterpretF64:
     case wasm::kExprI64ReinterpretF64:
       op = m->BitcastFloat64ToInt64();
       break;
-    // kExprI64Clz:
     case wasm::kExprI64Clz:
       op = m->Word64Clz();
       break;
-    // kExprI64Ctz:
     case wasm::kExprI64Ctz: {
       if (m->Word64Ctz().IsSupported()) {
         op = m->Word64Ctz().op();
         break;
       } else if (m->Is32() && m->Word32Ctz().IsSupported()) {
         op = m->Word64CtzPlaceholder();
         break;
       } else if (m->Word64ReverseBits().IsSupported()) {
         Node* reversed = graph()->NewNode(m->Word64ReverseBits().op(), input);
         Node* result = graph()->NewNode(m->Word64Clz(), reversed);
         return result;
       } else {
         return BuildI64Ctz(input);
       }
     }
-    // kExprI64Popcnt:
     case wasm::kExprI64Popcnt: {
       if (m->Word64Popcnt().IsSupported()) {
         op = m->Word64Popcnt().op();
       } else if (m->Is32() && m->Word32Popcnt().IsSupported()) {
         op = m->Word64PopcntPlaceholder();
       } else {
         return BuildI64Popcnt(input);
       }
       break;
     }
-    // kExprF32SConvertI64:
     case wasm::kExprI64Eqz:
       op = m->Word64Equal();
       return graph()->NewNode(op, input, jsgraph()->Int64Constant(0));
     case wasm::kExprF32SConvertI64:
       if (m->Is32()) {
         return BuildF32SConvertI64(input);
       }
       op = m->RoundInt64ToFloat32();
       break;
-    // kExprF32UConvertI64:
     case wasm::kExprF32UConvertI64:
       if (m->Is32()) {
         return BuildF32UConvertI64(input);
       }
       op = m->RoundUint64ToFloat32();
       break;
-    // kExprF64SConvertI64:
     case wasm::kExprF64SConvertI64:
       if (m->Is32()) {
         return BuildF64SConvertI64(input);
       }
       op = m->RoundInt64ToFloat64();
       break;
-    // kExprF64UConvertI64:
     case wasm::kExprF64UConvertI64:
       if (m->Is32()) {
         return BuildF64UConvertI64(input);
       }
       op = m->RoundUint64ToFloat64();
       break;
-// kExprI64SConvertF32:
     case wasm::kExprI64SConvertF32: {
       return BuildI64SConvertF32(input, position);
     }
-    // kExprI64SConvertF64:
     case wasm::kExprI64SConvertF64: {
       return BuildI64SConvertF64(input, position);
     }
-    // kExprI64UConvertF32:
     case wasm::kExprI64UConvertF32: {
       return BuildI64UConvertF32(input, position);
     }
-    // kExprI64UConvertF64:
     case wasm::kExprI64UConvertF64: {
       return BuildI64UConvertF64(input, position);
     }
     default:
       op = UnsupportedOpcode(opcode);
   }
   return graph()->NewNode(op, input);
 }
 
 
@@ skipping 2200 matching lines @@
 
 Handle<Code> FinishCompilation(WasmCompilationUnit* unit) {
   Handle<Code> result = unit->FinishCompilation();
   delete unit;
   return result;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8