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* [javascriptcore-test262-automation] changes from git@github.com:WebKit/webkit.git at sha 949e26452cfa153a7f4afe593da97e2fe9e1b706 on Tue Jul 03 2018 14:35:15 GMT-0400 (Eastern Daylight Time)
73 lines
2.9 KiB
JavaScript
73 lines
2.9 KiB
JavaScript
import * as assert from '../assert.js';
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import Builder from '../Builder.js';
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const callerTopBits = 0xC0FEBEEF;
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const innerReturnHi = 0xDEADFACE;
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const innerReturnLo = 0xC0FEC0FE;
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const callerModule = () => {
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const builder = (new Builder())
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.Type().End()
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.Import()
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.Function("exports", "callMe", { params: ["i64"], ret: "i64" })
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.End()
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.Function().End()
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.Export()
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.Function("entry")
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.End()
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.Code()
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.Function("entry", { params: ["i32"], ret: "i32" }, ["i64"])
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.I32Const(callerTopBits).I64ExtendUI32().I32Const(32).I64ExtendUI32().I64Shl() // ((i64)callerTopBits) << 32
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.GetLocal(0).I64ExtendUI32()
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.I64Or() // value: param | (((i64)callerTopBits << 32))
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.Call(0) // Calls exports.callMe(param | (((i64)callerTopBits) << 32)).
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.TeeLocal(1).I32WrapI64() // lo: (i32)callResult
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.GetLocal(1).I32Const(32).I64ExtendUI32().I64ShrU().I32WrapI64() // hi: (i32)(callResult >> 32)
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.I32Xor()
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.Return()
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.End()
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.End();
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return new WebAssembly.Module(builder.WebAssembly().get());
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};
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const calleeModule = () => {
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const builder = (new Builder())
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.Type().End()
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.Import()
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.Function("imp", "func", { params: ["i32", "i32"], ret: "i32" })
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.End()
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.Function().End()
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.Export()
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.Function("callMe")
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.End()
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.Code()
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.Function("callMe", { params: ["i64"], ret: "i64" })
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.GetLocal(0).I32WrapI64() // lo: (i32)param
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.GetLocal(0).I32Const(32).I64ExtendUI32().I64ShrU().I32WrapI64() // hi: (i32)(param >> 32)
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.Call(0) // Calls imp.func with the 64-bit value as i32 { hi, lo }.
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.Drop()
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.I32Const(innerReturnHi).I64ExtendUI32().I32Const(32).I64ExtendUI32().I64Shl().I32Const(innerReturnLo).I64ExtendUI32().I64Or() // ((i64)hi << 32) | (i64)lo
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.Return()
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.End()
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.End();
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return new WebAssembly.Module(builder.WebAssembly().get());
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};
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(function WasmToWasm() {
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let value;
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const func = (hi, lo) => { value = { hi: hi, lo: lo }; return hi ^ lo; };
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const callee = new WebAssembly.Instance(calleeModule(), { imp: { func: func } });
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const caller = new WebAssembly.Instance(callerModule(), callee);
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for (let i = 0; i < 4096; ++i) {
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assert.eq(caller.exports.entry(i), innerReturnHi ^ innerReturnLo);
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assert.eq(value.lo >>> 0, callerTopBits);
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assert.eq(value.hi >>> 0, i);
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}
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})();
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// FIXME test the following https://bugs.webkit.org/show_bug.cgi?id=166625
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// - wasm->wasm using 32-bit things (including float), as well as 64-bit NaNs that don't get canonicalized
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// - Do a throw two-deep
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// - Check that the first wasm's instance is back in OK state (with table or global?)
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// - Test calling through a Table
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