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regress-bigint-dce.js
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regress-bigint-dce.js
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/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
// RUN: %shermes -exec -O0 %s | %FileCheck --match-full-lines %s
// RUN: %shermes -exec -O %s | %FileCheck --match-full-lines %s
(function() {
// Verify that arithmetic operations with a BigInt operand and non-BigInt
// operand (except adds) are not DCE-d, because that would throw a runtime
// exception.
try {
1n + 1;
} catch (e) {
print(e);
}
//CHECK: TypeError: Cannot convert 1 to BigInt
try {
1 << 1n;
} catch (e) {
print(e);
}
//CHECK-NEXT: TypeError: Cannot convert BigInt to number
// Verify that BigInt operations that may throw are not eliminated:
// unsigned right shift, division, modulo.
try {
1n >>> 1n;
} catch (e) {
print(e);
}
//CHECK-NEXT: TypeError: BigInts have no unsigned shift
try {
1n / 0n;
} catch (e) {
print(e);
}
//CHECK-NEXT: RangeError: Division by zero
try {
1n % 0n;
} catch (e) {
print(e);
}
//CHECK-NEXT: RangeError: Division by zero
})();