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cb44c8debb
gc/ssa.go initilizes SP and SB values with TUINTPTR type. Assign same type in SSA tests and modify check.go to catch mismatching types for those ops. This makes SSA tests more consistent. Change-Id: I798440d57d00fb949d1a0cd796759c9b82a934bd Reviewed-on: https://go-review.googlesource.com/106658 Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
56 lines
1.7 KiB
Go
56 lines
1.7 KiB
Go
// 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 (
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"cmd/compile/internal/types"
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"testing"
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)
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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 := c.config.Types.BytePtr
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fun := c.Fun("entry",
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Bloc("entry",
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Valu("start", OpInitMem, types.TypeMem, 0, nil),
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Valu("sb", OpSB, c.config.Types.Uintptr, 0, nil),
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Valu("sp", OpSP, c.config.Types.Uintptr, 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", OpStore, types.TypeMem, 0, ptrType, "addr1", "v", "wb1"),
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Valu("wb1", OpStore, types.TypeMem, 0, ptrType, "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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func TestWriteBarrierPhi(t *testing.T) {
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// Make sure writebarrier phase works for single-block loop, where
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// a Phi op takes the store in the same block as argument.
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// See issue #19067.
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c := testConfig(t)
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ptrType := c.config.Types.BytePtr
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fun := c.Fun("entry",
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Bloc("entry",
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Valu("start", OpInitMem, types.TypeMem, 0, nil),
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Valu("sb", OpSB, c.config.Types.Uintptr, 0, nil),
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Valu("sp", OpSP, c.config.Types.Uintptr, 0, nil),
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Goto("loop")),
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Bloc("loop",
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Valu("phi", OpPhi, types.TypeMem, 0, nil, "start", "wb"),
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Valu("v", OpConstNil, ptrType, 0, nil),
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Valu("addr", OpAddr, ptrType, 0, nil, "sb"),
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Valu("wb", OpStore, types.TypeMem, 0, ptrType, "addr", "v", "phi"), // has write barrier
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Goto("loop")))
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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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