Upload Kmake

deps/v8/test/mjsunit/maglev/regress/regress-crbug-1428524.js

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+// Copyright 2023 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.
+//
+// Flags: --maglev --allow-natives-syntax --maglev-untagged-phis
+
+function f(a) {
+  let int32 = a + 1;
+
+  let int32_phi = a ? int32 : 42;
+  let int32_use = int32_phi + 1;
+
+  // {float64_phi} has an Int32 input and a Float64 use, we should thus generate
+  // a Float64 phi for it. One of its inputs is {int32_phi}, which should have
+  // been untagged as Int32, and for which we should thus require an
+  // Int32ToFloat64 conversion.
+  let float64_phi = a ? int32_phi : int32;
+  let float64_use = float64_phi + 4.5;
+
+  return float64_use;
+}
+
+%PrepareFunctionForOptimization(f);
+f(1);
+%OptimizeMaglevOnNextCall(f);
+f(1);