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30 lines
960 B
Go
30 lines
960 B
Go
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ssa
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import "testing"
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func TestWriteBarrierStoreOrder(t *testing.T) {
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// Make sure writebarrier phase works even StoreWB ops are not in dependency order
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c := testConfig(t)
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ptrType := &TypeImpl{Size_: 8, Ptr: true, Name: "testptr"} // dummy for testing
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fun := Fun(c, "entry",
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Bloc("entry",
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Valu("start", OpInitMem, TypeMem, 0, nil),
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Valu("sb", OpSB, TypeInvalid, 0, nil),
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Valu("sp", OpSP, TypeInvalid, 0, nil),
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Valu("v", OpConstNil, ptrType, 0, nil),
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Valu("addr1", OpAddr, ptrType, 0, nil, "sb"),
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Valu("wb2", OpStoreWB, TypeMem, 8, nil, "addr1", "v", "wb1"),
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Valu("wb1", OpStoreWB, TypeMem, 8, nil, "addr1", "v", "start"), // wb1 and wb2 are out of order
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Goto("exit")),
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Bloc("exit",
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Exit("wb2")))
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CheckFunc(fun.f)
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writebarrier(fun.f)
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CheckFunc(fun.f)
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}
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