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// Copyright 2018 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: --liftoff --no-wasm-tier-up --no-future --wasm-tier-mask-for-testing=2
load('test/mjsunit/wasm/wasm-module-builder.js');
const builder = new WasmModuleBuilder();
builder.addMemory(1, 1);
// First function is Liftoff. The first parameter is used as memory offset.
builder.addFunction(undefined, kSig_v_i).addBody([
kExprGetLocal, 0, // get_local 0
kExprI32Const, 0, // i32.const 0
kExprI32StoreMem, 0, 0, // i32.store offset=0
]);
// Second function is Turbofan. It loads the sixth parameter from the stack
// into a register for the first argument. Even though it's a 32-bit value, it
// is loaded as 64-bit value on x64.
builder.addFunction(undefined, makeSig(new Array(6).fill(kWasmI32), []))
.addBody([
kExprGetLocal, 5, // get_local 5
kExprCallFunction, 0 // call 0
]);
// The third function is Liftoff again. A value is spilled on the stack as i32,
// then used as a call argument, passed via the stack. The full 64-bit are
// copied on the stack, even though just 32-bit were written before. Hence, the
// stack slot is not zero-extended.
const gen_i32_code = [
kExprTeeLocal, 0, // tee_local 0
kExprGetLocal, 0, // get_local 0
kExprI32Const, 1, // i32.const 1
kExprI32Add // i32.add --> 2nd param
];
builder.addFunction(undefined, kSig_v_v).addLocals({i32_count: 1}).addBody([
// Generate six values on the stack, then six more to force the other six on
// the stack.
...wasmI32Const(0), // i32.const 0
...wasmI32Const(1), // i32.const 1
kExprI32Add, // i32.add --> 1st param
...gen_i32_code, // --> 2nd param
...gen_i32_code, // --> 3rd param
...gen_i32_code, // --> 4th param
...gen_i32_code, // --> 5th param
...gen_i32_code, // --> 6th param
...gen_i32_code, // --> garbage
...gen_i32_code, // --> garbage
...gen_i32_code, // --> garbage
...gen_i32_code, // --> garbage
...gen_i32_code, // --> garbage
...gen_i32_code, // --> garbage
kExprDrop, // drop garbage
kExprDrop, // drop garbage
kExprDrop, // drop garbage
kExprDrop, // drop garbage
kExprDrop, // drop garbage
kExprDrop, // drop garbage
kExprCallFunction, 1 // call 1
]).exportAs('three');
const instance = builder.instantiate();
instance.exports.three();
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