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Diffstat (limited to '')
-rw-r--r-- | js/src/jit-test/tests/wasm/regress/bug1836708.js | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/regress/bug1836708.js b/js/src/jit-test/tests/wasm/regress/bug1836708.js new file mode 100644 index 0000000000..87b7483bd6 --- /dev/null +++ b/js/src/jit-test/tests/wasm/regress/bug1836708.js @@ -0,0 +1,19 @@ +// Testing i64.mul in wasm with a 2 ** n +- 1 value as operand, which may +// be optimized in code generation. +var mulImmOperands = []; + +for (let i = 0n; i < 64n; i++) { + mulImmOperands.push(2n ** i - 1n); + mulImmOperands.push(2n ** i + 1n); +} + +for (const immVal of mulImmOperands) { + const ins = wasmEvalText(`(module + (func (export "mul_i64") (param i64) (result i64) + local.get 0 + i64.const ${immVal} + i64.mul + ))`); + + assertEq(ins.exports.mul_i64(42n), BigInt.asIntN(64, 42n * immVal)); +} |