Upload Kmake

deps/v8/test/mjsunit/regress/wasm/condition-change-during-branch-elimination.js

@@ -0,0 +1,49 @@
+// Copyright 2021 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.
+
+d8.file.execute("test/mjsunit/wasm/wasm-module-builder.js");
+
+// This test creates the situation where BranchElimination's VisitIf sees a
+// different condition than the preceding VisitBranch (because an interleaved
+// CommonOperatorReducer replaced the condition).
+
+(function foo() {
+  let builder = new WasmModuleBuilder();
+
+  builder.addFunction("main", kSig_v_l)
+    .addLocals(kWasmI32, 2)
+    .addBody([
+      kExprLoop, kWasmVoid,
+        kExprLocalGet, 0x02,
+        kExprLocalTee, 0x01,
+        kExprIf, kWasmVoid,
+        kExprElse,
+          kExprLoop, kWasmVoid,
+            kExprLoop, kWasmVoid,
+              kExprLocalGet, 0x01,
+              kExprIf, kWasmVoid,
+              kExprElse,
+                kExprLocalGet, 0x02,
+                kExprBrIf, 0x04,
+                kExprBr, 0x01,
+                kExprEnd,
+              kExprLocalGet, 0x00,
+              kExprCallFunction, 0x01,
+              kExprLocalTee, 0x02,
+              kExprBrIf, 0x00,
+              kExprEnd,
+            kExprLocalGet, 0x01,
+            kExprBrIf, 0x00,
+            kExprEnd,
+          kExprEnd,
+        kExprBr, 0x00,
+        kExprEnd])
+    .exportAs("main");
+
+  builder.addFunction("callee", kSig_i_l)
+         .addBody([kExprLocalGet, 0, kExprI32ConvertI64]);
+
+  let module = new WebAssembly.Module(builder.toBuffer());
+  let instance = new WebAssembly.Instance(module);
+})();