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// Copyright 2021 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: --wasm-staging
// This is a fuzzer-generated test case that exposed a bug in Liftoff that only
// affects ARM, where the fp register aliasing is different from other archs.
// We were inncorrectly clearing the the high fp register in a LiftoffRegList
// indicating registers to load, hitting a DCHECK.
load('test/mjsunit/wasm/wasm-module-builder.js');
const builder = new WasmModuleBuilder();
builder.addMemory(19, 32, false);
builder.addGlobal(kWasmI32, 0);
builder.addType(makeSig([], []));
builder.addType(makeSig([kWasmI64, kWasmS128, kWasmF32], [kWasmI32]));
// Generate function 1 (out of 5).
builder.addFunction(undefined, 0 /* sig */)
.addBodyWithEnd([
// signature: v_v
// body:
kExprI32Const, 0x05, // i32.const
kExprReturn, // return
kExprUnreachable, // unreachable
kExprEnd, // end @5
]);
// Generate function 4 (out of 5).
builder.addFunction(undefined, 1 /* sig */)
.addBodyWithEnd([
// signature: i_lsf
// body:
kExprLocalGet, 0x01, // local.get
kExprLocalGet, 0x01, // local.get
kExprGlobalGet, 0x00, // global.get
kExprDrop, // drop
kExprLoop, kWasmVoid, // loop @8
kExprLoop, 0x00, // loop @10
kExprI32Const, 0x01, // i32.const
kExprMemoryGrow, 0x00, // memory.grow
kExprI64LoadMem8U, 0x00, 0x70, // i64.load8_u
kExprLoop, 0x00, // loop @19
kExprCallFunction, 0x00, // call function #0: v_v
kExprEnd, // end @23
kExprI64Const, 0xf1, 0x24, // i64.const
kExprGlobalGet, 0x00, // global.get
kExprDrop, // drop
kExprBr, 0x00, // br depth=0
kExprEnd, // end @32
kExprEnd, // end @33
kExprI32Const, 0x5b, // i32.const
kExprReturn, // return
kExprEnd, // end @37
]);
// Instantiation is enough to cause a crash.
const instance = builder.instantiate();
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