bfaacb8afb
With --wasm-trace-memory, both compiled code and the interpreter will output each memory load or store. This helps to debug miscompilations in emscripten or in V8, like the referenced bug. R=titzer@chromium.org Bug: chromium:718858 Change-Id: I90704d164975b11c65677f86947ab102242d5153 Reviewed-on: https://chromium-review.googlesource.com/684316 Reviewed-by: Ben Titzer <titzer@chromium.org> Commit-Queue: Clemens Hammacher <clemensh@chromium.org> Cr-Commit-Position: refs/heads/master@{#48255}
38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --no-stress-opt --expose-wasm --wasm-trace-memory
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load("test/mjsunit/wasm/wasm-constants.js");
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load("test/mjsunit/wasm/wasm-module-builder.js");
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var builder = new WasmModuleBuilder();
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builder.addMemory(1);
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builder.addFunction('load', kSig_v_i)
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.addBody([kExprGetLocal, 0, kExprI32LoadMem, 0, 0, kExprDrop])
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.exportFunc();
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builder.addFunction('load8', kSig_v_i)
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.addBody([kExprGetLocal, 0, kExprI32LoadMem8U, 0, 0, kExprDrop])
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.exportFunc();
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builder.addFunction('loadf', kSig_v_i)
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.addBody([kExprGetLocal, 0, kExprF32LoadMem, 0, 0, kExprDrop])
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.exportFunc();
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builder.addFunction('store', kSig_v_ii)
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.addBody([kExprGetLocal, 0, kExprGetLocal, 1, kExprI32StoreMem, 0, 0])
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.exportFunc();
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builder.addFunction('store8', kSig_v_ii)
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.addBody([kExprGetLocal, 0, kExprGetLocal, 1, kExprI32StoreMem8, 0, 0])
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.exportFunc();
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var module = builder.instantiate();
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module.exports.load(4);
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module.exports.load8(1);
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module.exports.store(4, 0x12345678);
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module.exports.load(2);
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module.exports.load8(6);
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module.exports.loadf(2);
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module.exports.store8(4, 0xab);
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module.exports.load(2);
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module.exports.loadf(2);
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