[wasm] Int64Lowering of I64XConvertI32.

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/platform.h"
 
@@ skipping 828 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;
-
-    // kExprI32ConvertI64:
     // kExprI64SConvertI32:
+    case wasm::kExprI64SConvertI32:
+      op = m->ChangeInt32ToInt64();
+      break;
     // kExprI64UConvertI32:
+    case wasm::kExprI64UConvertI32:
+      op = m->ChangeUint32ToUint64();
+      break;
     // kExprF64ReinterpretI64:
     // kExprI64ReinterpretF64:
     // kExprI64Clz:
     // kExprI64Ctz:
     // kExprI64Popcnt:
     // kExprF32SConvertI64:
     case wasm::kExprF32SConvertI64:
       if (m->Is32()) {
         return BuildF32SConvertI64(input);
       }
@@ skipping 20 matching lines @@
       }
       op = m->RoundUint64ToFloat64();
       break;
 // kExprI64SConvertF32:
 // kExprI64SConvertF64:
 // kExprI64UConvertF32:
 // kExprI64UConvertF64:
 #if WASM_64
     // Opcodes only supported on 64-bit platforms.
     // TODO(titzer): query the machine operator builder here instead of #ifdef.
-    case wasm::kExprI64SConvertI32:
-      op = m->ChangeInt32ToInt64();
-      break;
-    case wasm::kExprI64UConvertI32:
-      op = m->ChangeUint32ToUint64();
-      break;
     case wasm::kExprI64SConvertF32: {
       Node* trunc = graph()->NewNode(m->TryTruncateFloat32ToInt64(), input);
       Node* result =
           graph()->NewNode(jsgraph()->common()->Projection(0), trunc);
       Node* overflow =
           graph()->NewNode(jsgraph()->common()->Projection(1), trunc);
       trap_->ZeroCheck64(kTrapFloatUnrepresentable, overflow);
       return result;
     }
     case wasm::kExprI64SConvertF64: {
@@ skipping 1562 matching lines @@
         module_env->module->GetName(function.name_offset));
   }
 
   return code;
 }
 
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8